./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:13:08,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:13:08,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:13:08,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:13:08,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:13:08,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:13:08,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:13:08,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:13:08,564 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:13:08,564 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:13:08,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:13:08,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:13:08,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:13:08,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:13:08,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:13:08,565 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:13:08,566 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:13:08,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:13:08,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:13:08,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:13:08,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:13:08,568 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 [2025-01-09 01:13:08,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:13:08,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:13:08,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:13:08,780 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:13:08,780 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:13:08,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2025-01-09 01:13:09,931 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a16cc1002/3460b83389754eefb0b7d40b3ae2309d/FLAG968bc1d06 [2025-01-09 01:13:10,176 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:13:10,178 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2025-01-09 01:13:10,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a16cc1002/3460b83389754eefb0b7d40b3ae2309d/FLAG968bc1d06 [2025-01-09 01:13:10,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a16cc1002/3460b83389754eefb0b7d40b3ae2309d [2025-01-09 01:13:10,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:13:10,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:13:10,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:13:10,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:13:10,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:13:10,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f8c329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10, skipping insertion in model container [2025-01-09 01:13:10,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,228 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:13:10,340 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2025-01-09 01:13:10,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:13:10,347 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:13:10,359 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2025-01-09 01:13:10,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:13:10,369 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:13:10,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10 WrapperNode [2025-01-09 01:13:10,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:13:10,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:13:10,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:13:10,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:13:10,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,389 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-01-09 01:13:10,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:13:10,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:13:10,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:13:10,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:13:10,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,396 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,403 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-01-09 01:13:10,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:13:10,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:13:10,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:13:10,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:13:10,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (1/1) ... [2025-01-09 01:13:10,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:13:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:13:10,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:13:10,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:13:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2025-01-09 01:13:10,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:13:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:13:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:13:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:13:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:13:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:13:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:13:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:13:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:13:10,520 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:13:10,522 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:13:10,643 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-01-09 01:13:10,643 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:13:10,649 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:13:10,650 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-01-09 01:13:10,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:13:10 BoogieIcfgContainer [2025-01-09 01:13:10,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:13:10,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:13:10,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:13:10,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:13:10,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:13:10" (1/3) ... [2025-01-09 01:13:10,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3491eae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:13:10, skipping insertion in model container [2025-01-09 01:13:10,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:10" (2/3) ... [2025-01-09 01:13:10,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3491eae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:13:10, skipping insertion in model container [2025-01-09 01:13:10,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:13:10" (3/3) ... [2025-01-09 01:13:10,656 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2025-01-09 01:13:10,666 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:13:10,667 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1252b.c that has 2 procedures, 33 locations, 1 initial locations, 4 loop locations, and 3 error locations. [2025-01-09 01:13:10,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:13:10,703 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;@29e30f85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:13:10,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-01-09 01:13:10,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 01:13:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-09 01:13:10,709 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:10,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-09 01:13:10,709 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __fpclassify_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [__fpclassify_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:10,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:10,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1985600072, now seen corresponding path program 1 times [2025-01-09 01:13:10,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:13:10,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752268359] [2025-01-09 01:13:10,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:13:10,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 01:13:10,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 01:13:10,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:10,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:13:10,776 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:13:10,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-09 01:13:10,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-09 01:13:10,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:10,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:13:10,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:13:10,802 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:13:10,803 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __fpclassify_doubleErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 3 remaining) [2025-01-09 01:13:10,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 3 remaining) [2025-01-09 01:13:10,805 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2025-01-09 01:13:10,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:13:10,809 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:13:10,821 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:13:10,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:13:10 BoogieIcfgContainer [2025-01-09 01:13:10,825 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:13:10,826 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:13:10,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:13:10,827 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:13:10,827 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:13:10" (3/4) ... [2025-01-09 01:13:10,829 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:13:10,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:13:10,831 INFO L158 Benchmark]: Toolchain (without parser) took 616.61ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 84.4MB in the end (delta: 41.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 01:13:10,831 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:13:10,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.35ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 113.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:10,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.07ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 112.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:13:10,832 INFO L158 Benchmark]: Boogie Preprocessor took 22.18ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 110.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:10,833 INFO L158 Benchmark]: RCFGBuilder took 237.33ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 97.6MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:10,833 INFO L158 Benchmark]: TraceAbstraction took 173.84ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 85.1MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:13:10,833 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 167.8MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:13:10,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.35ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 113.8MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.07ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 112.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.18ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 110.9MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 237.33ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 97.6MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 173.84ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 85.1MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 167.8MB. Free memory is still 84.4MB. 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: 29]: 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 29, overapproximation of someUnaryDOUBLEoperation at line 82. Possible FailurePath: [L81] double x = 0.0; [L82] double y = -0.0; [L83] CALL fmax_double(x, y) [L54] CALL __fpclassify_double(x) VAL [\old(x)=0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0] [L29] ieee_double_shape_type ew_u; VAL [\old(x)=0] - UnprovableResult [Line: 66]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 3 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=33occurred 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 01:13:10,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:13:13,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:13:13,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:13:13,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:13:13,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:13:13,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:13:13,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:13:13,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:13:13,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:13:13,486 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:13:13,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:13:13,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:13:13,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:13:13,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:13:13,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:13:13,492 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:13:13,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:13:13,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:13:13,492 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:13:13,493 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:13:13,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:13:13,493 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:13:13,493 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:13:13,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:13:13,493 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 [2025-01-09 01:13:13,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:13:13,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:13:13,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:13:13,758 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:13:13,758 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:13:13,759 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2025-01-09 01:13:14,956 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/581097f19/6ac6614b19c04abd8a3318f5760ba866/FLAG1a280e0a3 [2025-01-09 01:13:15,120 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:13:15,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2025-01-09 01:13:15,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/581097f19/6ac6614b19c04abd8a3318f5760ba866/FLAG1a280e0a3 [2025-01-09 01:13:15,527 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/581097f19/6ac6614b19c04abd8a3318f5760ba866 [2025-01-09 01:13:15,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:13:15,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:13:15,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:13:15,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:13:15,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:13:15,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6885998b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15, skipping insertion in model container [2025-01-09 01:13:15,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:13:15,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2025-01-09 01:13:15,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:13:15,681 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:13:15,697 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2025-01-09 01:13:15,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:13:15,714 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:13:15,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15 WrapperNode [2025-01-09 01:13:15,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:13:15,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:13:15,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:13:15,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:13:15,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,747 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2025-01-09 01:13:15,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:13:15,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:13:15,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:13:15,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:13:15,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,755 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,762 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-01-09 01:13:15,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:13:15,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:13:15,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:13:15,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:13:15,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (1/1) ... [2025-01-09 01:13:15,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:13:15,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:13:15,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:13:15,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2025-01-09 01:13:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:13:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:13:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:13:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:13:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:13:15,889 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:13:15,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:13:16,091 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2025-01-09 01:13:16,091 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:13:16,101 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:13:16,101 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 01:13:16,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:13:16 BoogieIcfgContainer [2025-01-09 01:13:16,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:13:16,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:13:16,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:13:16,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:13:16,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:13:15" (1/3) ... [2025-01-09 01:13:16,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c546a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:13:16, skipping insertion in model container [2025-01-09 01:13:16,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:13:15" (2/3) ... [2025-01-09 01:13:16,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c546a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:13:16, skipping insertion in model container [2025-01-09 01:13:16,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:13:16" (3/3) ... [2025-01-09 01:13:16,113 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2025-01-09 01:13:16,122 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:13:16,124 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1252b.c that has 2 procedures, 27 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 01:13:16,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:13:16,175 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;@2fe482e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:13:16,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:13:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 01:13:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-09 01:13:16,185 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:16,185 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:16,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:16,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:16,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2041907729, now seen corresponding path program 1 times [2025-01-09 01:13:16,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:16,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642960380] [2025-01-09 01:13:16,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:16,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:16,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:16,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:16,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-01-09 01:13:16,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-09 01:13:16,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-09 01:13:16,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:16,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:16,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:13:16,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:13:16,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:16,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:16,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642960380] [2025-01-09 01:13:16,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642960380] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:16,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:16,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:13:16,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440125801] [2025-01-09 01:13:16,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:16,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:13:16,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:16,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:13:16,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:13:16,299 INFO L87 Difference]: Start difference. First operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:16,309 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2025-01-09 01:13:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:13:16,311 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2025-01-09 01:13:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:16,314 INFO L225 Difference]: With dead ends: 51 [2025-01-09 01:13:16,315 INFO L226 Difference]: Without dead ends: 24 [2025-01-09 01:13:16,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:13:16,318 INFO L435 NwaCegarLoop]: 34 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, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:16,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:13:16,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-01-09 01:13:16,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-01-09 01:13:16,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 01:13:16,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2025-01-09 01:13:16,341 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 13 [2025-01-09 01:13:16,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:16,341 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2025-01-09 01:13:16,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:16,341 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2025-01-09 01:13:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-09 01:13:16,342 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:16,342 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:16,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-01-09 01:13:16,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:16,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:16,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:16,547 INFO L85 PathProgramCache]: Analyzing trace with hash 521279888, now seen corresponding path program 1 times [2025-01-09 01:13:16,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:16,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248328774] [2025-01-09 01:13:16,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:16,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:16,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:16,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:16,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-01-09 01:13:16,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-09 01:13:16,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-09 01:13:16,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:16,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:16,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 01:13:16,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:13:16,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:16,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:16,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248328774] [2025-01-09 01:13:16,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248328774] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:16,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:16,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 01:13:16,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373014553] [2025-01-09 01:13:16,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:16,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 01:13:16,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:16,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 01:13:16,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:16,637 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:16,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:16,866 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2025-01-09 01:13:16,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 01:13:16,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2025-01-09 01:13:16,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:16,868 INFO L225 Difference]: With dead ends: 36 [2025-01-09 01:13:16,869 INFO L226 Difference]: Without dead ends: 27 [2025-01-09 01:13:16,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:16,869 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:16,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 01:13:16,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-01-09 01:13:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-01-09 01:13:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 01:13:16,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2025-01-09 01:13:16,874 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 14 [2025-01-09 01:13:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:16,875 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2025-01-09 01:13:16,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:16,875 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2025-01-09 01:13:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 01:13:16,875 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:16,875 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:16,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-01-09 01:13:17,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:17,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:17,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:17,080 INFO L85 PathProgramCache]: Analyzing trace with hash 155889261, now seen corresponding path program 1 times [2025-01-09 01:13:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:17,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334869058] [2025-01-09 01:13:17,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:17,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:17,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:17,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-01-09 01:13:17,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 01:13:17,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 01:13:17,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:17,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:17,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 01:13:17,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:13:17,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:17,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:17,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334869058] [2025-01-09 01:13:17,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334869058] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:17,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:17,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 01:13:17,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236503041] [2025-01-09 01:13:17,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:17,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 01:13:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:17,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 01:13:17,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 01:13:17,353 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:17,599 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2025-01-09 01:13:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 01:13:17,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-01-09 01:13:17,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:17,600 INFO L225 Difference]: With dead ends: 53 [2025-01-09 01:13:17,600 INFO L226 Difference]: Without dead ends: 30 [2025-01-09 01:13:17,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-09 01:13:17,601 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:17,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 77 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 01:13:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-01-09 01:13:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2025-01-09 01:13:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 01:13:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2025-01-09 01:13:17,605 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 15 [2025-01-09 01:13:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:17,606 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2025-01-09 01:13:17,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2025-01-09 01:13:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-09 01:13:17,606 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:17,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:17,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-01-09 01:13:17,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:17,807 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:17,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:17,808 INFO L85 PathProgramCache]: Analyzing trace with hash 94988460, now seen corresponding path program 1 times [2025-01-09 01:13:17,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:17,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432030635] [2025-01-09 01:13:17,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:17,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:17,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:17,816 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:17,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-01-09 01:13:17,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 01:13:17,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 01:13:17,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:17,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:17,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 01:13:17,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:17,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:13:17,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:17,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:17,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432030635] [2025-01-09 01:13:17,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432030635] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:17,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:17,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 01:13:17,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781398916] [2025-01-09 01:13:17,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:17,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 01:13:17,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:17,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 01:13:17,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:17,918 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:17,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:17,981 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2025-01-09 01:13:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 01:13:17,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-01-09 01:13:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:17,984 INFO L225 Difference]: With dead ends: 41 [2025-01-09 01:13:17,984 INFO L226 Difference]: Without dead ends: 32 [2025-01-09 01:13:17,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:17,985 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:17,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:13:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-01-09 01:13:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2025-01-09 01:13:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 01:13:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2025-01-09 01:13:17,989 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 16 [2025-01-09 01:13:17,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:17,989 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2025-01-09 01:13:17,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2025-01-09 01:13:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-09 01:13:17,989 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:17,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:17,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2025-01-09 01:13:18,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:18,190 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:18,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:18,190 INFO L85 PathProgramCache]: Analyzing trace with hash 883337673, now seen corresponding path program 1 times [2025-01-09 01:13:18,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:18,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551572887] [2025-01-09 01:13:18,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:18,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:18,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:18,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:18,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-01-09 01:13:18,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-09 01:13:18,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-09 01:13:18,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:18,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:18,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 01:13:18,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:13:18,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:18,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:18,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551572887] [2025-01-09 01:13:18,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551572887] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:18,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:18,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 01:13:18,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909796631] [2025-01-09 01:13:18,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:18,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 01:13:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:18,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 01:13:18,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 01:13:18,322 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:18,461 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2025-01-09 01:13:18,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 01:13:18,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2025-01-09 01:13:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:18,463 INFO L225 Difference]: With dead ends: 53 [2025-01-09 01:13:18,463 INFO L226 Difference]: Without dead ends: 28 [2025-01-09 01:13:18,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:13:18,463 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:18,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 73 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:13:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-01-09 01:13:18,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2025-01-09 01:13:18,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 01:13:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2025-01-09 01:13:18,467 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2025-01-09 01:13:18,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:18,467 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2025-01-09 01:13:18,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:13:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2025-01-09 01:13:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-09 01:13:18,468 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:18,468 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:18,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2025-01-09 01:13:18,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:18,668 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:18,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1401012661, now seen corresponding path program 1 times [2025-01-09 01:13:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658949626] [2025-01-09 01:13:18,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:18,670 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:18,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:18,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:18,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2025-01-09 01:13:18,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 01:13:18,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 01:13:18,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:18,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:18,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 01:13:18,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 01:13:18,734 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:18,735 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:18,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658949626] [2025-01-09 01:13:18,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658949626] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:18,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:18,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 01:13:18,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311882589] [2025-01-09 01:13:18,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:18,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 01:13:18,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:18,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 01:13:18,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:18,736 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:18,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:18,771 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2025-01-09 01:13:18,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 01:13:18,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2025-01-09 01:13:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:18,772 INFO L225 Difference]: With dead ends: 38 [2025-01-09 01:13:18,772 INFO L226 Difference]: Without dead ends: 29 [2025-01-09 01:13:18,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:18,772 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:18,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:13:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-01-09 01:13:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-01-09 01:13:18,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 01:13:18,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2025-01-09 01:13:18,776 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 22 [2025-01-09 01:13:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:18,777 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2025-01-09 01:13:18,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2025-01-09 01:13:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-09 01:13:18,777 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:18,777 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:18,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2025-01-09 01:13:18,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:18,981 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:18,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:18,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1399165619, now seen corresponding path program 1 times [2025-01-09 01:13:18,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:18,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828792050] [2025-01-09 01:13:18,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:18,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:18,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:18,988 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:18,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2025-01-09 01:13:19,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 01:13:19,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 01:13:19,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:19,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:19,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 01:13:19,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-09 01:13:19,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:19,097 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:19,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828792050] [2025-01-09 01:13:19,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828792050] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:19,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:19,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 01:13:19,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520145809] [2025-01-09 01:13:19,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:19,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 01:13:19,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:19,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 01:13:19,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:13:19,099 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:19,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:19,118 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2025-01-09 01:13:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 01:13:19,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2025-01-09 01:13:19,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:19,119 INFO L225 Difference]: With dead ends: 34 [2025-01-09 01:13:19,119 INFO L226 Difference]: Without dead ends: 31 [2025-01-09 01:13:19,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:13:19,119 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:19,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:13:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-01-09 01:13:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-01-09 01:13:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 01:13:19,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2025-01-09 01:13:19,123 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 22 [2025-01-09 01:13:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:19,123 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2025-01-09 01:13:19,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:19,123 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2025-01-09 01:13:19,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-09 01:13:19,123 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:19,123 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:19,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2025-01-09 01:13:19,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:19,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:19,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:19,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1189620454, now seen corresponding path program 1 times [2025-01-09 01:13:19,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:19,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453420853] [2025-01-09 01:13:19,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:19,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:19,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:19,327 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:19,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2025-01-09 01:13:19,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 01:13:19,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 01:13:19,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:19,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:19,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 01:13:19,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 01:13:19,471 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:19,471 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:19,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453420853] [2025-01-09 01:13:19,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453420853] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:19,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:19,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 01:13:19,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213203136] [2025-01-09 01:13:19,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:19,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 01:13:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:19,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 01:13:19,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 01:13:19,472 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:19,603 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2025-01-09 01:13:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 01:13:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2025-01-09 01:13:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:19,604 INFO L225 Difference]: With dead ends: 45 [2025-01-09 01:13:19,604 INFO L226 Difference]: Without dead ends: 31 [2025-01-09 01:13:19,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-09 01:13:19,605 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:19,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 81 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:13:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-01-09 01:13:19,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-01-09 01:13:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 01:13:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2025-01-09 01:13:19,608 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 23 [2025-01-09 01:13:19,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:19,608 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2025-01-09 01:13:19,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2025-01-09 01:13:19,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-01-09 01:13:19,608 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:19,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:19,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2025-01-09 01:13:19,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:19,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:19,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash -550122585, now seen corresponding path program 1 times [2025-01-09 01:13:19,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:19,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664213849] [2025-01-09 01:13:19,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:19,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:19,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:19,815 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:19,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2025-01-09 01:13:19,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 01:13:19,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 01:13:19,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:19,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:19,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 01:13:19,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 01:13:19,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:19,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:19,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664213849] [2025-01-09 01:13:19,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664213849] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:19,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:19,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 01:13:19,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491499231] [2025-01-09 01:13:19,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:19,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 01:13:19,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:19,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 01:13:19,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:19,891 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:19,916 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2025-01-09 01:13:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 01:13:19,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2025-01-09 01:13:19,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:19,917 INFO L225 Difference]: With dead ends: 41 [2025-01-09 01:13:19,917 INFO L226 Difference]: Without dead ends: 32 [2025-01-09 01:13:19,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:13:19,918 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:19,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:13:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-01-09 01:13:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2025-01-09 01:13:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 01:13:19,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2025-01-09 01:13:19,925 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 24 [2025-01-09 01:13:19,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:19,926 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2025-01-09 01:13:19,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:19,926 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2025-01-09 01:13:19,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-01-09 01:13:19,927 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:19,927 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:19,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2025-01-09 01:13:20,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:20,128 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:20,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash 475748918, now seen corresponding path program 1 times [2025-01-09 01:13:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:20,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614297972] [2025-01-09 01:13:20,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:20,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:20,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:20,134 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:20,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2025-01-09 01:13:20,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-09 01:13:20,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-09 01:13:20,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:20,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:13:20,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 01:13:20,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:13:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 01:13:20,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:13:20,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:13:20,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614297972] [2025-01-09 01:13:20,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614297972] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:13:20,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:13:20,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 01:13:20,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796828232] [2025-01-09 01:13:20,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:13:20,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 01:13:20,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:13:20,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 01:13:20,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 01:13:20,305 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:20,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:13:20,553 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2025-01-09 01:13:20,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 01:13:20,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2025-01-09 01:13:20,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:13:20,553 INFO L225 Difference]: With dead ends: 38 [2025-01-09 01:13:20,554 INFO L226 Difference]: Without dead ends: 23 [2025-01-09 01:13:20,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:13:20,554 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:13:20,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 68 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:13:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-01-09 01:13:20,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-01-09 01:13:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 01:13:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2025-01-09 01:13:20,556 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 25 [2025-01-09 01:13:20,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:13:20,556 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2025-01-09 01:13:20,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 01:13:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2025-01-09 01:13:20,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-01-09 01:13:20,557 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:13:20,557 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:20,561 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2025-01-09 01:13:20,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:20,760 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:13:20,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:13:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash -62232446, now seen corresponding path program 1 times [2025-01-09 01:13:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:13:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260033358] [2025-01-09 01:13:20,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:13:20,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:20,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:13:20,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:13:20,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2025-01-09 01:13:20,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 01:13:20,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 01:13:20,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:20,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:13:20,851 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:13:20,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-09 01:13:20,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-09 01:13:20,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:13:20,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:13:20,927 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 01:13:20,927 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:13:20,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:13:20,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2025-01-09 01:13:21,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:13:21,136 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:13:21,167 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:13:21,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:13:21 BoogieIcfgContainer [2025-01-09 01:13:21,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:13:21,169 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:13:21,169 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:13:21,170 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:13:21,170 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:13:16" (3/4) ... [2025-01-09 01:13:21,170 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 01:13:21,199 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 17. [2025-01-09 01:13:21,235 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 01:13:21,235 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 01:13:21,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:13:21,235 INFO L158 Benchmark]: Toolchain (without parser) took 5705.18ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 61.6MB in the end (delta: 30.7MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.12ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.18ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: Boogie Preprocessor took 26.50ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: RCFGBuilder took 327.36ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 63.1MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: TraceAbstraction took 5064.20ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 66.7MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:13:21,236 INFO L158 Benchmark]: Witness Printer took 65.54ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 61.6MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:13:21,237 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.12ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.8MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.18ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.50ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.36ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 63.1MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5064.20ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 66.7MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.54ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 61.6MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 87]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L81] double x = 0.0; [L82] double y = -0.0; [L83] CALL, EXPR fmax_double(x, y) [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0.0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0.0, x=0.0] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L33] COND FALSE !(0) VAL [\old(x)=0.0, lsw=0, msw=0, x=0.0] [L35-L36] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L37] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L54] RET, EXPR __fpclassify_double(x) VAL [x=0.0, y=0.0] [L54] COND FALSE !(__fpclassify_double(x) == 0) [L56] CALL, EXPR __fpclassify_double(y) VAL [\old(x)=0.0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0.0, x=0.0] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L33] COND FALSE !(0) VAL [\old(x)=0.0, lsw=0, msw=-2147483648, x=0.0] [L35-L36] COND TRUE (msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000) [L37] return 2; VAL [\old(x)=0.0, \result=2, x=0.0] [L56] RET, EXPR __fpclassify_double(y) VAL [x=0.0, y=0.0] [L56] COND FALSE !(__fpclassify_double(y) == 0) [L59] return x > y ? x : y; VAL [\result=0.0] [L83] RET, EXPR fmax_double(x, y) [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0.0] [L86] EXPR res == 0.0 && __signbit_double(res) == 0 [L86] CALL, EXPR __signbit_double(res) [L63] __uint32_t msw; VAL [x=0.0] [L66] ieee_double_shape_type gh_u; [L67] gh_u.value = (x) [L68] EXPR gh_u.parts.msw [L68] (msw) = gh_u.parts.msw [L69] COND FALSE !(0) VAL [msw=-2147483648, x=0.0] [L71] return (msw & 0x80000000) != 0; VAL [\result=1, x=0.0] [L86] RET, EXPR __signbit_double(res) [L86] EXPR res == 0.0 && __signbit_double(res) == 0 [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 766 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 507 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 259 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=7, InterpolantAutomatonStates: 49, 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, 10 MinimizatonAttempts, 9 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 181 ConstructedInterpolants, 24 QuantifiedInterpolants, 755 SizeOfPredicates, 15 NumberOfNonLiveVariables, 680 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 30/30 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 proved your program to be incorrect! [2025-01-09 01:13:21,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE