./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0684b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0684b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27ce6cfdcb9dfa0489011437b04a08db6e71d8edccf3dd91706f7dddce0310b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:17:40,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:17:40,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:17:40,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:17:40,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:17:40,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:17:40,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:17:40,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:17:40,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:17:40,970 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:17:40,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:17:40,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:17:40,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:17:40,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:17:40,972 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:17:40,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:17:40,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:17:40,972 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:17:40,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:17:40,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:17:40,973 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:17:40,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:17:40,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:17:40,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:17:40,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:17:40,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:17:40,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:17:40,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:17:40,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:17:40,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:17:40,975 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27ce6cfdcb9dfa0489011437b04a08db6e71d8edccf3dd91706f7dddce0310b4 [2025-01-09 01:17:41,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:17:41,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:17:41,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:17:41,225 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:17:41,225 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:17:41,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0684b.c [2025-01-09 01:17:42,339 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00119cd19/96ac3e22fa0640b29152f59eff86b1d2/FLAG3235d4f5d [2025-01-09 01:17:42,594 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:17:42,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0684b.c [2025-01-09 01:17:42,611 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00119cd19/96ac3e22fa0640b29152f59eff86b1d2/FLAG3235d4f5d [2025-01-09 01:17:42,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00119cd19/96ac3e22fa0640b29152f59eff86b1d2 [2025-01-09 01:17:42,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:17:42,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:17:42,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:17:42,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:17:42,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:17:42,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:17:42" (1/1) ... [2025-01-09 01:17:42,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c09dedd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:42, skipping insertion in model container [2025-01-09 01:17:42,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:17:42" (1/1) ... [2025-01-09 01:17:42,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:17:43,102 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0684b.c[5556,5569] [2025-01-09 01:17:43,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:17:43,116 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:17:43,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0684b.c[5556,5569] [2025-01-09 01:17:43,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:17:43,160 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:17:43,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43 WrapperNode [2025-01-09 01:17:43,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:17:43,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:17:43,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:17:43,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:17:43,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,190 INFO L138 Inliner]: procedures = 21, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 261 [2025-01-09 01:17:43,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:17:43,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:17:43,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:17:43,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:17:43,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,207 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-01-09 01:17:43,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,219 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:17:43,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:17:43,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:17:43,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:17:43,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (1/1) ... [2025-01-09 01:17:43,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:17:43,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:17:43,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:17:43,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:17:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2025-01-09 01:17:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:17:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:17:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 01:17:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-01-09 01:17:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2025-01-09 01:17:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2025-01-09 01:17:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:17:43,367 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:17:43,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:17:43,655 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2025-01-09 01:17:43,655 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:17:43,663 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:17:43,666 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2025-01-09 01:17:43,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:17:43 BoogieIcfgContainer [2025-01-09 01:17:43,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:17:43,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:17:43,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:17:43,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:17:43,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:17:42" (1/3) ... [2025-01-09 01:17:43,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba7f680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:17:43, skipping insertion in model container [2025-01-09 01:17:43,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:43" (2/3) ... [2025-01-09 01:17:43,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba7f680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:17:43, skipping insertion in model container [2025-01-09 01:17:43,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:17:43" (3/3) ... [2025-01-09 01:17:43,676 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0684b.c [2025-01-09 01:17:43,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:17:43,687 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0684b.c that has 3 procedures, 113 locations, 1 initial locations, 16 loop locations, and 9 error locations. [2025-01-09 01:17:43,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:17:43,736 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;@52661c45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:17:43,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-01-09 01:17:43,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 97 states have (on average 1.7628865979381443) internal successors, (171), 106 states have internal predecessors, (171), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 01:17:43,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:17:43,743 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:17:43,743 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:17:43,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fabs_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, fabs_floatErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 6 more)] === [2025-01-09 01:17:43,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:17:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2156998, now seen corresponding path program 1 times [2025-01-09 01:17:43,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:17:43,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988736352] [2025-01-09 01:17:43,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:17:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:17:43,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:17:43,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:17:43,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:17:43,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:17:43,860 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:17:43,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:17:43,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:17:43,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:17:43,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:17:43,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:17:43,910 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:17:43,910 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 9 remaining) [2025-01-09 01:17:43,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 9 remaining) [2025-01-09 01:17:43,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_floatErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 9 remaining) [2025-01-09 01:17:43,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 9 remaining) [2025-01-09 01:17:43,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 9 remaining) [2025-01-09 01:17:43,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 9 remaining) [2025-01-09 01:17:43,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 9 remaining) [2025-01-09 01:17:43,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2025-01-09 01:17:43,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 9 remaining) [2025-01-09 01:17:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:17:43,917 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:17:43,929 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:17:43,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:17:43 BoogieIcfgContainer [2025-01-09 01:17:43,932 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:17:43,932 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:17:43,932 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:17:43,932 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:17:43,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:17:43" (3/4) ... [2025-01-09 01:17:43,934 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:17:43,935 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:17:43,936 INFO L158 Benchmark]: Toolchain (without parser) took 1008.62ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 41.2MB in the end (delta: 65.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-09 01:17:43,937 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:17:43,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.88ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 91.5MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:17:43,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.08ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 89.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:17:43,938 INFO L158 Benchmark]: Boogie Preprocessor took 37.82ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 87.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:17:43,939 INFO L158 Benchmark]: RCFGBuilder took 438.49ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 62.1MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 01:17:43,939 INFO L158 Benchmark]: TraceAbstraction took 262.77ms. Allocated memory is still 142.6MB. Free memory was 62.1MB in the beginning and 41.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 01:17:43,939 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 142.6MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:17:43,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.88ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 91.5MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.08ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 89.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.82ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 87.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 438.49ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 62.1MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 262.77ms. Allocated memory is still 142.6MB. Free memory was 62.1MB in the beginning and 41.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 142.6MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 221]: 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 221, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 237. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L236] float x = __VERIFIER_nondet_float(); [L237] float y = -1.0f / 0.0f; [L239] CALL isfinite_float(x) [L219] __int32_t ix; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L221] ieee_float_shape_type gf_u; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - UnprovableResult [Line: 17]: 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: 22]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 125]: 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: 131]: 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: 199]: 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: 204]: 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: 245]: 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: 58]: 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 3 procedures, 113 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 01:17:43,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0684b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27ce6cfdcb9dfa0489011437b04a08db6e71d8edccf3dd91706f7dddce0310b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:17:45,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:17:45,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:17:45,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:17:45,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:17:45,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:17:45,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:17:45,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:17:45,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:17:45,852 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:17:45,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:17:45,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:17:45,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:17:45,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:17:45,855 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:17:45,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:17:45,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:17:45,855 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:17:45,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:17:45,856 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:17:45,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:17:45,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:17:45,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:17:45,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:17:45,858 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27ce6cfdcb9dfa0489011437b04a08db6e71d8edccf3dd91706f7dddce0310b4 [2025-01-09 01:17:46,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:17:46,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:17:46,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:17:46,095 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:17:46,096 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:17:46,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0684b.c [2025-01-09 01:17:47,279 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de9de157a/5bb0377088364c738b3e6648083943cd/FLAGfbdd7f11f [2025-01-09 01:17:47,482 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:17:47,487 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0684b.c [2025-01-09 01:17:47,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de9de157a/5bb0377088364c738b3e6648083943cd/FLAGfbdd7f11f [2025-01-09 01:17:47,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de9de157a/5bb0377088364c738b3e6648083943cd [2025-01-09 01:17:47,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:17:47,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:17:47,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:17:47,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:17:47,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:17:47,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:17:47" (1/1) ... [2025-01-09 01:17:47,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69950f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:47, skipping insertion in model container [2025-01-09 01:17:47,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:17:47" (1/1) ... [2025-01-09 01:17:47,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:17:47,998 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0684b.c[5556,5569] [2025-01-09 01:17:48,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:17:48,011 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:17:48,038 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0684b.c[5556,5569] [2025-01-09 01:17:48,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:17:48,061 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:17:48,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48 WrapperNode [2025-01-09 01:17:48,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:17:48,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:17:48,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:17:48,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:17:48,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,095 INFO L138 Inliner]: procedures = 24, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 235 [2025-01-09 01:17:48,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:17:48,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:17:48,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:17:48,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:17:48,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,134 INFO L175 MemorySlicer]: Split 55 memory accesses to 12 slices as follows [2, 2, 2, 7, 2, 2, 2, 7, 2, 2, 23, 2]. 42 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 0]. The 20 writes are split as follows [0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 12, 1]. [2025-01-09 01:17:48,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:17:48,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:17:48,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:17:48,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:17:48,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (1/1) ... [2025-01-09 01:17:48,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:17:48,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:17:48,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:17:48,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2025-01-09 01:17:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:17:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2025-01-09 01:17:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2025-01-09 01:17:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2025-01-09 01:17:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2025-01-09 01:17:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:17:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-01-09 01:17:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2025-01-09 01:17:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:17:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2025-01-09 01:17:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:17:48,400 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:17:48,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:18:10,867 INFO L? ?]: Removed 78 outVars from TransFormulas that were not future-live. [2025-01-09 01:18:10,867 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:18:10,877 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:18:10,877 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2025-01-09 01:18:10,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:10 BoogieIcfgContainer [2025-01-09 01:18:10,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:18:10,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:18:10,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:18:10,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:18:10,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:17:47" (1/3) ... [2025-01-09 01:18:10,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e7a6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:18:10, skipping insertion in model container [2025-01-09 01:18:10,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:17:48" (2/3) ... [2025-01-09 01:18:10,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e7a6be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:18:10, skipping insertion in model container [2025-01-09 01:18:10,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:10" (3/3) ... [2025-01-09 01:18:10,901 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0684b.c [2025-01-09 01:18:10,909 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:18:10,910 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0684b.c that has 3 procedures, 90 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2025-01-09 01:18:10,949 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:18:10,958 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;@5db48f60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:18:10,958 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:18:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 01:18:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-09 01:18:10,966 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:10,966 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:10,967 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:10,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1810407063, now seen corresponding path program 1 times [2025-01-09 01:18:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:10,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090969406] [2025-01-09 01:18:10,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:10,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:18:10,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:10,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:18:10,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-01-09 01:18:11,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-09 01:18:11,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-09 01:18:11,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:11,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:11,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:18:11,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:18:11,729 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:11,731 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:11,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090969406] [2025-01-09 01:18:11,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090969406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:11,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:11,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:18:11,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015092428] [2025-01-09 01:18:11,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:11,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:18:11,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:11,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:18:11,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:18:11,753 INFO L87 Difference]: Start difference. First operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:11,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:18:11,775 INFO L93 Difference]: Finished difference Result 178 states and 290 transitions. [2025-01-09 01:18:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:18:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2025-01-09 01:18:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:18:11,780 INFO L225 Difference]: With dead ends: 178 [2025-01-09 01:18:11,781 INFO L226 Difference]: Without dead ends: 86 [2025-01-09 01:18:11,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:18:11,784 INFO L435 NwaCegarLoop]: 127 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, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:18:11,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:18:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-01-09 01:18:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-01-09 01:18:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 01:18:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2025-01-09 01:18:11,815 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 14 [2025-01-09 01:18:11,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:18:11,815 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2025-01-09 01:18:11,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:11,816 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2025-01-09 01:18:11,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-09 01:18:11,817 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:11,817 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:11,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-01-09 01:18:12,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:18:12,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:12,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1359368000, now seen corresponding path program 1 times [2025-01-09 01:18:12,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:12,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630547368] [2025-01-09 01:18:12,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:12,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:18:12,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:12,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:18:12,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-01-09 01:18:12,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-09 01:18:12,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-09 01:18:12,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:12,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:12,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-09 01:18:12,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:13,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 01:18:13,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-01-09 01:18:14,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 01:18:14,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2025-01-09 01:18:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:18:17,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:17,001 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:17,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630547368] [2025-01-09 01:18:17,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630547368] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:17,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:17,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-09 01:18:17,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188523575] [2025-01-09 01:18:17,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:17,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 01:18:17,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:17,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 01:18:17,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 01:18:17,003 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:18:22,025 INFO L93 Difference]: Finished difference Result 123 states and 170 transitions. [2025-01-09 01:18:22,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 01:18:22,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 17 [2025-01-09 01:18:22,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:18:22,028 INFO L225 Difference]: With dead ends: 123 [2025-01-09 01:18:22,028 INFO L226 Difference]: Without dead ends: 55 [2025-01-09 01:18:22,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2025-01-09 01:18:22,029 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 55 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 01:18:22,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 464 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 01:18:22,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-01-09 01:18:22,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2025-01-09 01:18:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 01:18:22,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2025-01-09 01:18:22,035 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 17 [2025-01-09 01:18:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:18:22,035 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2025-01-09 01:18:22,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2025-01-09 01:18:22,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-09 01:18:22,035 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:22,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:22,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-01-09 01:18:22,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:18:22,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:22,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:22,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1017775963, now seen corresponding path program 1 times [2025-01-09 01:18:22,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:22,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [857821802] [2025-01-09 01:18:22,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:22,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:18:22,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:22,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:18:22,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-01-09 01:18:22,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-09 01:18:23,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-09 01:18:23,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:23,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:23,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 01:18:23,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:18:26,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:26,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:26,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [857821802] [2025-01-09 01:18:26,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [857821802] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:26,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:26,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 01:18:26,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886323299] [2025-01-09 01:18:26,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:26,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 01:18:26,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:26,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 01:18:26,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 01:18:26,270 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:28,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:36,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:40,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:44,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:48,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:52,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:56,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:18:58,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:02,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:04,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:06,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:11,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:12,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:15,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:16,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:19:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:19:17,106 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2025-01-09 01:19:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 01:19:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 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 20 [2025-01-09 01:19:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:19:17,133 INFO L225 Difference]: With dead ends: 57 [2025-01-09 01:19:17,133 INFO L226 Difference]: Without dead ends: 49 [2025-01-09 01:19:17,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-01-09 01:19:17,133 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 57 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:19:17,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 212 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 8 Unknown, 0 Unchecked, 50.1s Time] [2025-01-09 01:19:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-01-09 01:19:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-01-09 01:19:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 01:19:17,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2025-01-09 01:19:17,137 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 20 [2025-01-09 01:19:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:19:17,137 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2025-01-09 01:19:17,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:19:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2025-01-09 01:19:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-09 01:19:17,138 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:19:17,138 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:19:17,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2025-01-09 01:19:17,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:19:17,340 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:19:17,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:19:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash -940186841, now seen corresponding path program 1 times [2025-01-09 01:19:17,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:19:17,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755551314] [2025-01-09 01:19:17,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:19:17,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:19:17,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:19:17,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:19:17,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-01-09 01:19:17,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-09 01:19:18,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-09 01:19:18,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:19:18,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:19:18,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 01:19:18,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:19:18,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 01:19:18,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-01-09 01:19:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:19:19,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:19:19,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:19:19,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755551314] [2025-01-09 01:19:19,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755551314] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:19:19,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:19:19,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 01:19:19,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235065031] [2025-01-09 01:19:19,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:19:19,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 01:19:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:19:19,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 01:19:19,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 01:19:19,687 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 01:19:26,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []