./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:20:45,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:20:45,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 16:20:45,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:20:45,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:20:45,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:20:45,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:20:45,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:20:45,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:20:45,594 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:20:45,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:20:45,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:20:45,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:20:45,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:20:45,595 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:20:45,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:20:45,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:20:45,595 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:20:45,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 16:20:45,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:20:45,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:20:45,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:20:45,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 16:20:45,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 16:20:45,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:20:45,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:20:45,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:20:45,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:20:45,598 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f [2025-03-16 16:20:45,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:20:45,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:20:45,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:20:45,827 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:20:45,828 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:20:45,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-03-16 16:20:46,982 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ae3ff2a/f3d38ee4dfa14e75a883cbe547056780/FLAGd8335f6ee [2025-03-16 16:20:47,227 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:20:47,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-03-16 16:20:47,235 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ae3ff2a/f3d38ee4dfa14e75a883cbe547056780/FLAGd8335f6ee [2025-03-16 16:20:47,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ae3ff2a/f3d38ee4dfa14e75a883cbe547056780 [2025-03-16 16:20:47,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:20:47,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:20:47,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:20:47,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:20:47,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:20:47,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30296b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47, skipping insertion in model container [2025-03-16 16:20:47,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:20:47,740 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c[3212,3225] [2025-03-16 16:20:47,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:20:47,751 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:20:47,771 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c[3212,3225] [2025-03-16 16:20:47,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:20:47,784 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:20:47,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47 WrapperNode [2025-03-16 16:20:47,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:20:47,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:20:47,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:20:47,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:20:47,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,824 INFO L138 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2025-03-16 16:20:47,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:20:47,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:20:47,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:20:47,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:20:47,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,854 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-16 16:20:47,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,864 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:20:47,873 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:20:47,873 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:20:47,873 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:20:47,874 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (1/1) ... [2025-03-16 16:20:47,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:20:47,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:20:47,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 16:20:47,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 16:20:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:20:47,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-16 16:20:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:20:47,992 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:20:47,993 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:20:48,201 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2025-03-16 16:20:48,201 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:20:48,222 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:20:48,226 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:20:48,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:20:48 BoogieIcfgContainer [2025-03-16 16:20:48,226 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:20:48,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:20:48,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:20:48,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:20:48,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:20:47" (1/3) ... [2025-03-16 16:20:48,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b41f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:20:48, skipping insertion in model container [2025-03-16 16:20:48,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:47" (2/3) ... [2025-03-16 16:20:48,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b41f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:20:48, skipping insertion in model container [2025-03-16 16:20:48,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:20:48" (3/3) ... [2025-03-16 16:20:48,237 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2025-03-16 16:20:48,249 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:20:48,250 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0921.c that has 1 procedures, 47 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-16 16:20:48,293 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:20:48,301 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;@5e22dee5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:20:48,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-16 16:20:48,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 42 states have (on average 1.8095238095238095) internal successors, (76), 46 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:20:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-16 16:20:48,310 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:20:48,310 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-16 16:20:48,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-03-16 16:20:48,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:20:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash 4063, now seen corresponding path program 1 times [2025-03-16 16:20:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 16:20:48,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441181034] [2025-03-16 16:20:48,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:20:48,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 16:20:48,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:20:48,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:20:48,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:20:48,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:20:48,388 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 16:20:48,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:20:48,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:20:48,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:20:48,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:20:48,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 16:20:48,408 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 16:20:48,409 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-03-16 16:20:48,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-03-16 16:20:48,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-03-16 16:20:48,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 4 remaining) [2025-03-16 16:20:48,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 16:20:48,413 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-16 16:20:48,424 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:20:48,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:20:48 BoogieIcfgContainer [2025-03-16 16:20:48,426 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:20:48,427 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:20:48,427 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:20:48,427 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:20:48,429 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:20:48" (3/4) ... [2025-03-16 16:20:48,430 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 16:20:48,431 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:20:48,432 INFO L158 Benchmark]: Toolchain (without parser) took 858.88ms. Allocated memory is still 201.3MB. Free memory was 156.0MB in the beginning and 107.4MB in the end (delta: 48.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-16 16:20:48,433 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:20:48,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.46ms. Allocated memory is still 201.3MB. Free memory was 156.0MB in the beginning and 143.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:20:48,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.04ms. Allocated memory is still 201.3MB. Free memory was 143.1MB in the beginning and 141.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:20:48,435 INFO L158 Benchmark]: Boogie Preprocessor took 43.81ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 139.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:20:48,435 INFO L158 Benchmark]: IcfgBuilder took 353.42ms. Allocated memory is still 201.3MB. Free memory was 139.4MB in the beginning and 120.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:20:48,435 INFO L158 Benchmark]: TraceAbstraction took 198.88ms. Allocated memory is still 201.3MB. Free memory was 120.1MB in the beginning and 107.4MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:20:48,436 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 201.3MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:20:48,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.46ms. Allocated memory is still 201.3MB. Free memory was 156.0MB in the beginning and 143.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.04ms. Allocated memory is still 201.3MB. Free memory was 143.1MB in the beginning and 141.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.81ms. Allocated memory is still 201.3MB. Free memory was 141.4MB in the beginning and 139.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 353.42ms. Allocated memory is still 201.3MB. Free memory was 139.4MB in the beginning and 120.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 198.88ms. Allocated memory is still 201.3MB. Free memory was 120.1MB in the beginning and 107.4MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 201.3MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 39]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 39, overapproximation of someBinaryArithmeticFLOAToperation at line 121. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; [L121] float x = 0.0f / 0.0f; [L122] CALL __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - UnprovableResult [Line: 126]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 64]: 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: 55]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 76 edges, 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=47occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 16:20:48,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:20:50,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:20:50,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 16:20:50,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:20:50,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:20:50,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:20:50,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:20:50,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:20:50,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:20:50,382 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:20:50,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:20:50,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:20:50,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:20:50,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:20:50,383 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:20:50,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:20:50,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 16:20:50,384 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:20:50,385 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:20:50,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:20:50,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:20:50,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f [2025-03-16 16:20:50,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:20:50,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:20:50,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:20:50,604 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:20:50,606 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:20:50,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-03-16 16:20:51,715 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b2689cf/63ce0715f8a84c1ba340c18deb2a815e/FLAGd02266b29 [2025-03-16 16:20:51,947 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:20:51,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-03-16 16:20:51,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b2689cf/63ce0715f8a84c1ba340c18deb2a815e/FLAGd02266b29 [2025-03-16 16:20:51,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b2689cf/63ce0715f8a84c1ba340c18deb2a815e [2025-03-16 16:20:51,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:20:51,975 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:20:51,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:20:51,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:20:51,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:20:51,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:20:51" (1/1) ... [2025-03-16 16:20:51,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70055b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:51, skipping insertion in model container [2025-03-16 16:20:51,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:20:51" (1/1) ... [2025-03-16 16:20:51,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:20:52,115 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c[3212,3225] [2025-03-16 16:20:52,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:20:52,128 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:20:52,160 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c[3212,3225] [2025-03-16 16:20:52,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:20:52,174 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:20:52,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52 WrapperNode [2025-03-16 16:20:52,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:20:52,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:20:52,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:20:52,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:20:52,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,215 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139 [2025-03-16 16:20:52,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:20:52,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:20:52,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:20:52,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:20:52,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,243 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-16 16:20:52,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,252 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:20:52,267 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:20:52,270 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:20:52,270 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:20:52,271 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (1/1) ... [2025-03-16 16:20:52,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:20:52,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:20:52,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 16:20:52,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 16:20:52,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:20:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:20:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-16 16:20:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:20:52,400 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:20:52,402 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:21:22,360 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-03-16 16:21:22,361 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:21:22,368 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:21:22,369 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:21:22,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:21:22 BoogieIcfgContainer [2025-03-16 16:21:22,369 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:21:22,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:21:22,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:21:22,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:21:22,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:20:51" (1/3) ... [2025-03-16 16:21:22,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad2100b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:21:22, skipping insertion in model container [2025-03-16 16:21:22,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:20:52" (2/3) ... [2025-03-16 16:21:22,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad2100b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:21:22, skipping insertion in model container [2025-03-16 16:21:22,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:21:22" (3/3) ... [2025-03-16 16:21:22,376 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2025-03-16 16:21:22,386 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:21:22,387 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0921.c that has 1 procedures, 28 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-16 16:21:22,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:21:22,429 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;@681bdbdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:21:22,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 16:21:22,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 27 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-16 16:21:22,434 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:21:22,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:21:22,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:21:22,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:21:22,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1560837334, now seen corresponding path program 1 times [2025-03-16 16:21:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:21:22,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154654385] [2025-03-16 16:21:22,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:21:22,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:21:22,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:21:22,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:21:22,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-16 16:21:22,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-16 16:21:22,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-16 16:21:22,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:21:22,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:21:22,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 16:21:22,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:21:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:21:22,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:21:22,841 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:21:22,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154654385] [2025-03-16 16:21:22,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154654385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:21:22,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:21:22,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 16:21:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996999815] [2025-03-16 16:21:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:21:22,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 16:21:22,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:21:22,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 16:21:22,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:21:22,858 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 27 states have internal predecessors, (45), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:22,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:21:22,866 INFO L93 Difference]: Finished difference Result 55 states and 89 transitions. [2025-03-16 16:21:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 16:21:22,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-16 16:21:22,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:21:22,871 INFO L225 Difference]: With dead ends: 55 [2025-03-16 16:21:22,872 INFO L226 Difference]: Without dead ends: 25 [2025-03-16 16:21:22,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:21:22,875 INFO L435 NwaCegarLoop]: 38 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, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 16:21:22,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:21:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-16 16:21:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-03-16 16:21:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2025-03-16 16:21:22,894 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 7 [2025-03-16 16:21:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:21:22,894 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2025-03-16 16:21:22,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2025-03-16 16:21:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-16 16:21:22,895 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:21:22,895 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:21:22,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-03-16 16:21:23,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:21:23,097 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:21:23,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:21:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1968342130, now seen corresponding path program 1 times [2025-03-16 16:21:23,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:21:23,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817064981] [2025-03-16 16:21:23,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:21:23,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:21:23,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:21:23,100 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:21:23,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-16 16:21:23,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-16 16:21:23,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-16 16:21:23,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:21:23,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:21:23,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-16 16:21:23,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:21:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:21:23,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:21:23,747 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:21:23,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817064981] [2025-03-16 16:21:23,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817064981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:21:23,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:21:23,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 16:21:23,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654807472] [2025-03-16 16:21:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:21:23,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 16:21:23,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:21:23,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 16:21:23,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 16:21:23,749 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:29,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:21:29,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:21:29,262 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2025-03-16 16:21:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 16:21:29,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-16 16:21:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:21:29,360 INFO L225 Difference]: With dead ends: 29 [2025-03-16 16:21:29,360 INFO L226 Difference]: Without dead ends: 25 [2025-03-16 16:21:29,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:21:29,361 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2025-03-16 16:21:29,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 57 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2025-03-16 16:21:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-16 16:21:29,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-03-16 16:21:29,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2025-03-16 16:21:29,364 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 8 [2025-03-16 16:21:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:21:29,364 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2025-03-16 16:21:29,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2025-03-16 16:21:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 16:21:29,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:21:29,365 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:21:29,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-16 16:21:29,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:21:29,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:21:29,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:21:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash -886856433, now seen corresponding path program 1 times [2025-03-16 16:21:29,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:21:29,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033604887] [2025-03-16 16:21:29,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:21:29,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:21:29,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:21:29,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:21:29,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-16 16:21:29,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 16:21:29,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 16:21:29,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:21:29,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:21:29,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-16 16:21:29,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:21:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:21:30,581 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:21:30,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:21:30,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033604887] [2025-03-16 16:21:30,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033604887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:21:30,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:21:30,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:21:30,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906670743] [2025-03-16 16:21:30,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:21:30,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:21:30,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:21:30,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:21:30,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:21:30,582 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:21:36,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:21:40,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:21:44,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:21:48,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:21:52,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:21:55,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:21:57,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:22:02,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:22:06,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:22:09,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:22:13,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-16 16:22:17,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 16:22:17,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:22:17,268 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2025-03-16 16:22:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 16:22:17,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-16 16:22:17,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:22:17,269 INFO L225 Difference]: With dead ends: 29 [2025-03-16 16:22:17,269 INFO L226 Difference]: Without dead ends: 25 [2025-03-16 16:22:17,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:22:17,270 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2025-03-16 16:22:17,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 80 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 9 Unknown, 0 Unchecked, 46.7s Time] [2025-03-16 16:22:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-16 16:22:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-03-16 16:22:17,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2025-03-16 16:22:17,273 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 9 [2025-03-16 16:22:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:22:17,273 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2025-03-16 16:22:17,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2025-03-16 16:22:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-16 16:22:17,273 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:22:17,274 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:22:17,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2025-03-16 16:22:17,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:17,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:22:17,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:22:17,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1145729404, now seen corresponding path program 1 times [2025-03-16 16:22:17,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:22:17,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126217704] [2025-03-16 16:22:17,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:22:17,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:17,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:22:17,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:22:17,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-16 16:22:17,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-16 16:22:17,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-16 16:22:17,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:22:17,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:22:17,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-16 16:22:17,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:22:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:22:18,396 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:22:18,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:22:18,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126217704] [2025-03-16 16:22:18,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126217704] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:22:18,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:22:18,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:22:18,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793344355] [2025-03-16 16:22:18,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:22:18,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:22:18,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:22:18,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:22:18,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:22:18,397 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:22:18,700 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2025-03-16 16:22:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 16:22:18,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2025-03-16 16:22:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:22:18,700 INFO L225 Difference]: With dead ends: 25 [2025-03-16 16:22:18,700 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 16:22:18,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-16 16:22:18,700 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 16:22:18,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 16:22:18,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 16:22:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 16:22:18,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 16:22:18,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2025-03-16 16:22:18,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:22:18,701 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 16:22:18,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:18,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 16:22:18,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 16:22:18,703 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 16:22:18,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-16 16:22:18,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:18,907 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-16 16:22:18,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 16:22:19,097 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:22:19,106 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-16 16:22:19,106 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:22:19,106 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-16 16:22:19,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:22:19 BoogieIcfgContainer [2025-03-16 16:22:19,107 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:22:19,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:22:19,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:22:19,108 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:22:19,108 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:21:22" (3/4) ... [2025-03-16 16:22:19,110 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 16:22:19,114 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-16 16:22:19,114 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-16 16:22:19,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-16 16:22:19,115 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 16:22:19,167 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 16:22:19,168 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 16:22:19,168 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:22:19,169 INFO L158 Benchmark]: Toolchain (without parser) took 87193.05ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 45.6MB in the end (delta: 47.6MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2025-03-16 16:22:19,169 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:19,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.47ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 79.5MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:19,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.71ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:19,169 INFO L158 Benchmark]: Boogie Preprocessor took 48.82ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 75.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:19,169 INFO L158 Benchmark]: IcfgBuilder took 30102.54ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 58.0MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:22:19,170 INFO L158 Benchmark]: TraceAbstraction took 56736.22ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 52.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2025-03-16 16:22:19,170 INFO L158 Benchmark]: Witness Printer took 60.05ms. Allocated memory is still 117.4MB. Free memory was 52.6MB in the beginning and 45.6MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:19,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.47ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 79.5MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.71ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.82ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 75.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 30102.54ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 58.0MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 56736.22ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 52.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Witness Printer took 60.05ms. Allocated memory is still 117.4MB. Free memory was 52.6MB in the beginning and 45.6MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 126]: 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, 28 locations, 45 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 52.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 52.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 51.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 93 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 11 QuantifiedInterpolants, 213 SizeOfPredicates, 9 NumberOfNonLiveVariables, 205 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 63]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-16 16:22:19,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE