./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1032c.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_1032c.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 91b08fdaea77c510397a986e449fce03f50498e0d8db198e53038e606f1bccca --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:11:45,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:11:45,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:11:45,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:11:45,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:11:45,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:11:45,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:11:45,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:11:45,198 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:11:45,198 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:11:45,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:11:45,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:11:45,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:11:45,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:11:45,198 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:11:45,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:11:45,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:11:45,198 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:11:45,199 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:11:45,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:11:45,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:11:45,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:11:45,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:11:45,200 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 -> 91b08fdaea77c510397a986e449fce03f50498e0d8db198e53038e606f1bccca [2025-01-09 01:11:45,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:11:45,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:11:45,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:11:45,448 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:11:45,448 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:11:45,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2025-01-09 01:11:46,561 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d62dda13f/d17f88cd52804b6f9a4c214e4c4d96fc/FLAG34b74b918 [2025-01-09 01:11:46,822 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:11:46,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2025-01-09 01:11:46,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d62dda13f/d17f88cd52804b6f9a4c214e4c4d96fc/FLAG34b74b918 [2025-01-09 01:11:46,838 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d62dda13f/d17f88cd52804b6f9a4c214e4c4d96fc [2025-01-09 01:11:46,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:11:46,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:11:46,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:11:46,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:11:46,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:11:46,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:11:46" (1/1) ... [2025-01-09 01:11:46,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21b6642a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:46, skipping insertion in model container [2025-01-09 01:11:46,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:11:46" (1/1) ... [2025-01-09 01:11:46,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:11:46,968 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_1032c.c[2355,2368] [2025-01-09 01:11:46,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:11:46,976 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:11:46,991 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_1032c.c[2355,2368] [2025-01-09 01:11:46,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:11:47,000 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:11:47,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47 WrapperNode [2025-01-09 01:11:47,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:11:47,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:11:47,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:11:47,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:11:47,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,027 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 213 [2025-01-09 01:11:47,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:11:47,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:11:47,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:11:47,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:11:47,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,049 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2025-01-09 01:11:47,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,054 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:11:47,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:11:47,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:11:47,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:11:47,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (1/1) ... [2025-01-09 01:11:47,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:11:47,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:11:47,092 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 01:11:47,094 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 01:11:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:11:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:11:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:11:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:11:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:11:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:11:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:11:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:11:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:11:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:11:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:11:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:11:47,196 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:11:47,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:11:47,518 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2025-01-09 01:11:47,518 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:11:47,528 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:11:47,528 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2025-01-09 01:11:47,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:11:47 BoogieIcfgContainer [2025-01-09 01:11:47,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:11:47,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:11:47,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:11:47,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:11:47,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:11:46" (1/3) ... [2025-01-09 01:11:47,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aff49f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:11:47, skipping insertion in model container [2025-01-09 01:11:47,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:47" (2/3) ... [2025-01-09 01:11:47,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aff49f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:11:47, skipping insertion in model container [2025-01-09 01:11:47,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:11:47" (3/3) ... [2025-01-09 01:11:47,538 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2025-01-09 01:11:47,548 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:11:47,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1032c.c that has 1 procedures, 79 locations, 1 initial locations, 6 loop locations, and 4 error locations. [2025-01-09 01:11:47,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:11:47,610 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;@4f8df415, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:11:47,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 01:11:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 74 states have (on average 1.5945945945945945) internal successors, (118), 78 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:11:47,617 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:11:47,618 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:11:47,618 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-01-09 01:11:47,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:11:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:11:47,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:11:47,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079304093] [2025-01-09 01:11:47,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:11:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:11:47,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:11:47,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:11:47,683 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:11:47,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:11:47,683 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:11:47,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:11:47,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:11:47,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:11:47,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:11:47,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:11:47,701 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:11:47,702 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-01-09 01:11:47,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 4 remaining) [2025-01-09 01:11:47,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-01-09 01:11:47,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-01-09 01:11:47,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:11:47,706 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:11:47,717 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:11:47,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:11:47 BoogieIcfgContainer [2025-01-09 01:11:47,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:11:47,720 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:11:47,720 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:11:47,720 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:11:47,720 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:11:47" (3/4) ... [2025-01-09 01:11:47,722 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:11:47,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:11:47,723 INFO L158 Benchmark]: Toolchain (without parser) took 882.11ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 61.3MB in the end (delta: 50.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-09 01:11:47,723 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:11:47,723 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.54ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:11:47,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.32ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 97.8MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:11:47,724 INFO L158 Benchmark]: Boogie Preprocessor took 34.18ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:11:47,724 INFO L158 Benchmark]: RCFGBuilder took 466.50ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 73.9MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:11:47,724 INFO L158 Benchmark]: TraceAbstraction took 187.17ms. Allocated memory is still 142.6MB. Free memory was 73.3MB in the beginning and 61.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:11:47,725 INFO L158 Benchmark]: Witness Printer took 2.55ms. Allocated memory is still 142.6MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:11:47,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.54ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.32ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 97.8MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.18ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.50ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 73.9MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 187.17ms. Allocated memory is still 142.6MB. Free memory was 73.3MB in the beginning and 61.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.55ms. Allocated memory is still 142.6MB. Free memory is still 61.3MB. 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: 20]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 20. Possible FailurePath: [L88] double x = 1.0 / 0.0; [L89] CALL round_double(x) [L17] __int32_t msw, exponent_less_1023; [L18] __uint32_t lsw; VAL [x=53] [L20] ieee_double_shape_type ew_u; VAL [x=53] - UnprovableResult [Line: 57]: 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: 69]: 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: 93]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 01:11:47,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1032c.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 91b08fdaea77c510397a986e449fce03f50498e0d8db198e53038e606f1bccca --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:11:49,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:11:49,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:11:49,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:11:49,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:11:49,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:11:49,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:11:49,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:11:49,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:11:49,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:11:49,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:11:49,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:11:49,698 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:11:49,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:11:49,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:11:49,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:11:49,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:11:49,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:11:49,702 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:11:49,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:11:49,702 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:11:49,702 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:11:49,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:11:49,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:11:49,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:11:49,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:11:49,703 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 -> 91b08fdaea77c510397a986e449fce03f50498e0d8db198e53038e606f1bccca [2025-01-09 01:11:49,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:11:49,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:11:49,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:11:49,973 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:11:49,973 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:11:49,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2025-01-09 01:11:51,190 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1cbf4d389/0654ae4e40f34d60be3f51f444e70a3a/FLAG8c37bce85 [2025-01-09 01:11:51,381 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:11:51,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1032c.c [2025-01-09 01:11:51,390 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1cbf4d389/0654ae4e40f34d60be3f51f444e70a3a/FLAG8c37bce85 [2025-01-09 01:11:51,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1cbf4d389/0654ae4e40f34d60be3f51f444e70a3a [2025-01-09 01:11:51,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:11:51,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:11:51,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:11:51,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:11:51,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:11:51,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa2875d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51, skipping insertion in model container [2025-01-09 01:11:51,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:11:51,571 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_1032c.c[2355,2368] [2025-01-09 01:11:51,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:11:51,593 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:11:51,624 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_1032c.c[2355,2368] [2025-01-09 01:11:51,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:11:51,643 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:11:51,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51 WrapperNode [2025-01-09 01:11:51,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:11:51,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:11:51,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:11:51,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:11:51,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,684 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2025-01-09 01:11:51,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:11:51,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:11:51,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:11:51,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:11:51,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,712 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2025-01-09 01:11:51,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,724 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:11:51,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:11:51,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:11:51,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:11:51,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (1/1) ... [2025-01-09 01:11:51,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:11:51,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:11:51,774 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 01:11:51,783 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 01:11:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:11:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-01-09 01:11:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-01-09 01:11:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-01-09 01:11:51,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:11:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:11:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:11:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:11:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:11:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:11:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:11:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:11:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:11:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:11:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:11:51,889 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:11:51,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:11:52,112 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-01-09 01:11:52,112 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:11:52,119 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:11:52,119 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 01:11:52,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:11:52 BoogieIcfgContainer [2025-01-09 01:11:52,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:11:52,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:11:52,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:11:52,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:11:52,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:11:51" (1/3) ... [2025-01-09 01:11:52,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a57079f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:11:52, skipping insertion in model container [2025-01-09 01:11:52,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:11:51" (2/3) ... [2025-01-09 01:11:52,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a57079f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:11:52, skipping insertion in model container [2025-01-09 01:11:52,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:11:52" (3/3) ... [2025-01-09 01:11:52,128 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2025-01-09 01:11:52,140 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:11:52,142 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1032c.c that has 1 procedures, 29 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-09 01:11:52,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:11:52,192 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;@35bfa54d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:11:52,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:11:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:52,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-09 01:11:52,199 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:11:52,199 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:11:52,200 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:11:52,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:11:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2126287392, now seen corresponding path program 1 times [2025-01-09 01:11:52,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:11:52,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121952909] [2025-01-09 01:11:52,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:11:52,216 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 01:11:52,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:11:52,219 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 01:11:52,224 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 01:11:52,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-09 01:11:52,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-09 01:11:52,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:11:52,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:11:52,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:11:52,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:11:52,336 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 01:11:52,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:11:52,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:11:52,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121952909] [2025-01-09 01:11:52,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121952909] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:11:52,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:11:52,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:11:52,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575258910] [2025-01-09 01:11:52,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:11:52,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:11:52,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:11:52,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:11:52,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:11:52,364 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:11:52,376 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2025-01-09 01:11:52,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:11:52,378 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-01-09 01:11:52,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:11:52,383 INFO L225 Difference]: With dead ends: 56 [2025-01-09 01:11:52,384 INFO L226 Difference]: Without dead ends: 26 [2025-01-09 01:11:52,386 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 01:11:52,388 INFO L435 NwaCegarLoop]: 36 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, 36 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 01:11:52,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:11:52,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-01-09 01:11:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-01-09 01:11:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2025-01-09 01:11:52,418 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2025-01-09 01:11:52,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:11:52,418 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2025-01-09 01:11:52,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2025-01-09 01:11:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 01:11:52,419 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:11:52,419 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:11:52,423 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 01:11:52,619 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 01:11:52,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:11:52,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:11:52,620 INFO L85 PathProgramCache]: Analyzing trace with hash 961590375, now seen corresponding path program 1 times [2025-01-09 01:11:52,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:11:52,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418024608] [2025-01-09 01:11:52,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:11:52,621 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 01:11:52,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:11:52,624 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 01:11:52,625 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 01:11:52,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 01:11:52,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 01:11:52,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:11:52,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:11:52,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 01:11:52,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:11:52,930 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 01:11:52,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:11:52,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:11:52,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418024608] [2025-01-09 01:11:52,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418024608] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:11:52,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:11:52,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 01:11:52,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955985788] [2025-01-09 01:11:52,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:11:52,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 01:11:52,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:11:52,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 01:11:52,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:11:52,934 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:11:53,127 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2025-01-09 01:11:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 01:11:53,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-01-09 01:11:53,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:11:53,128 INFO L225 Difference]: With dead ends: 34 [2025-01-09 01:11:53,128 INFO L226 Difference]: Without dead ends: 16 [2025-01-09 01:11:53,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 01:11:53,128 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:11:53,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:11:53,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-01-09 01:11:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-01-09 01:11:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2025-01-09 01:11:53,131 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2025-01-09 01:11:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:11:53,131 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2025-01-09 01:11:53,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2025-01-09 01:11:53,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 01:11:53,131 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:11:53,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:11:53,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-01-09 01:11:53,335 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 01:11:53,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:11:53,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:11:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 615202163, now seen corresponding path program 1 times [2025-01-09 01:11:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:11:53,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127402268] [2025-01-09 01:11:53,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:11:53,336 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 01:11:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:11:53,339 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 01:11:53,340 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 01:11:53,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 01:11:53,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 01:11:53,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:11:53,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:11:53,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 01:11:53,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:11:53,701 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 01:11:53,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:11:53,701 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:11:53,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127402268] [2025-01-09 01:11:53,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127402268] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:11:53,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:11:53,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 01:11:53,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84613671] [2025-01-09 01:11:53,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:11:53,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 01:11:53,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:11:53,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 01:11:53,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:11:53,702 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:11:53,959 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2025-01-09 01:11:53,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 01:11:53,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-01-09 01:11:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:11:53,959 INFO L225 Difference]: With dead ends: 16 [2025-01-09 01:11:53,959 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 01:11:53,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-01-09 01:11:53,960 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:11:53,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:11:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 01:11:53,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 01:11:53,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 01:11:53,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2025-01-09 01:11:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:11:53,962 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 01:11:53,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:11:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 01:11:53,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 01:11:53,964 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:11:53,969 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 01:11:54,165 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 01:11:54,167 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 01:11:54,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 01:11:54,204 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:11:54,211 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:11:54,211 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:11:54,212 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:11:54,213 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:11:54,213 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:11:54,213 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:11:54,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:11:54 BoogieIcfgContainer [2025-01-09 01:11:54,213 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:11:54,214 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:11:54,214 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:11:54,214 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:11:54,214 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:11:52" (3/4) ... [2025-01-09 01:11:54,216 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 01:11:54,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-09 01:11:54,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-01-09 01:11:54,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 01:11:54,231 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 01:11:54,289 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 01:11:54,289 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 01:11:54,289 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:11:54,290 INFO L158 Benchmark]: Toolchain (without parser) took 2876.15ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 84.6MB in the end (delta: 7.6MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2025-01-09 01:11:54,290 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:11:54,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.23ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:11:54,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.67ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:11:54,290 INFO L158 Benchmark]: Boogie Preprocessor took 54.35ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:11:54,290 INFO L158 Benchmark]: RCFGBuilder took 378.87ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 60.8MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:11:54,290 INFO L158 Benchmark]: TraceAbstraction took 2091.49ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 41.1MB in the end (delta: 19.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2025-01-09 01:11:54,291 INFO L158 Benchmark]: Witness Printer took 75.43ms. Allocated memory is still 117.4MB. Free memory was 41.1MB in the beginning and 84.6MB in the end (delta: -43.5MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2025-01-09 01:11:54,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.23ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 79.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.67ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 78.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.35ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 75.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 378.87ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 60.8MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2091.49ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 41.1MB in the end (delta: 19.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 75.43ms. Allocated memory is still 117.4MB. Free memory was 41.1MB in the beginning and 84.6MB in the end (delta: -43.5MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 52 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 8 QuantifiedInterpolants, 399 SizeOfPredicates, 8 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 01:11:54,311 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 Result: TRUE