./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-floats-scientific-comp/loop3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/loop-floats-scientific-comp/loop3.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 bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:14:46,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:14:46,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 13:14:46,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:14:46,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:14:46,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:14:46,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:14:46,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:14:46,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:14:46,313 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:14:46,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:14:46,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:14:46,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:14:46,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:14:46,313 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:14:46,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:14:46,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:14:46,314 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:14:46,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:46,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 13:14:46,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 13:14:46,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:14:46,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:14:46,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:14:46,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:14:46,316 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 -> bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc [2025-02-05 13:14:46,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:14:46,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:14:46,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:14:46,547 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:14:46,548 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:14:46,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2025-02-05 13:14:47,691 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/49eb97e64/e9f90b76f0284e6faff2e1ebe346c0e2/FLAG64e94938b [2025-02-05 13:14:47,949 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:14:47,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2025-02-05 13:14:47,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/49eb97e64/e9f90b76f0284e6faff2e1ebe346c0e2/FLAG64e94938b [2025-02-05 13:14:48,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/49eb97e64/e9f90b76f0284e6faff2e1ebe346c0e2 [2025-02-05 13:14:48,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:14:48,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:14:48,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:48,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:14:48,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:14:48,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b09e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48, skipping insertion in model container [2025-02-05 13:14:48,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:14:48,395 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/loop-floats-scientific-comp/loop3.c[472,485] [2025-02-05 13:14:48,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:48,423 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:14:48,433 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/loop-floats-scientific-comp/loop3.c[472,485] [2025-02-05 13:14:48,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:48,446 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:14:48,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48 WrapperNode [2025-02-05 13:14:48,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:48,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:48,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:14:48,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:14:48,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,468 INFO L138 Inliner]: procedures = 15, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-02-05 13:14:48,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:48,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:14:48,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:14:48,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:14:48,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,484 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-02-05 13:14:48,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,485 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:14:48,491 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:14:48,491 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:14:48,491 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:14:48,492 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (1/1) ... [2025-02-05 13:14:48,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:48,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:14:48,522 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) [2025-02-05 13:14:48,524 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 [2025-02-05 13:14:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:14:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 13:14:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 13:14:48,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:14:48,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:14:48,601 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:14:48,603 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:14:48,708 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-02-05 13:14:48,709 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:14:48,717 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:14:48,718 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:14:48,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:48 BoogieIcfgContainer [2025-02-05 13:14:48,719 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:14:48,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:14:48,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:14:48,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:14:48,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:14:48" (1/3) ... [2025-02-05 13:14:48,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32afeac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:48, skipping insertion in model container [2025-02-05 13:14:48,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:48" (2/3) ... [2025-02-05 13:14:48,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32afeac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:48, skipping insertion in model container [2025-02-05 13:14:48,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:48" (3/3) ... [2025-02-05 13:14:48,727 INFO L128 eAbstractionObserver]: Analyzing ICFG loop3.c [2025-02-05 13:14:48,736 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:14:48,738 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop3.c that has 1 procedures, 14 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 13:14:48,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:14:48,785 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;@4d39e95b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:14:48,785 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:14:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 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) [2025-02-05 13:14:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-05 13:14:48,791 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:48,791 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:14:48,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:48,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1118956250, now seen corresponding path program 1 times [2025-02-05 13:14:48,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:14:48,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241721761] [2025-02-05 13:14:48,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:14:48,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-05 13:14:48,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-05 13:14:48,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:48,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:14:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:14:48,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 13:14:48,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241721761] [2025-02-05 13:14:48,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241721761] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:14:48,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:14:48,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:14:48,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057238984] [2025-02-05 13:14:48,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:14:48,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:14:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 13:14:48,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:14:48,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:48,930 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:14:48,937 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2025-02-05 13:14:48,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:14:48,938 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-05 13:14:48,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:14:48,942 INFO L225 Difference]: With dead ends: 25 [2025-02-05 13:14:48,942 INFO L226 Difference]: Without dead ends: 10 [2025-02-05 13:14:48,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:48,949 INFO L435 NwaCegarLoop]: 14 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, 14 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 [2025-02-05 13:14:48,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:14:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-02-05 13:14:48,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2025-02-05 13:14:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2025-02-05 13:14:48,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2025-02-05 13:14:48,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:14:48,972 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2025-02-05 13:14:48,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2025-02-05 13:14:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-05 13:14:48,972 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:48,972 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:14:48,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 13:14:48,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:48,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:48,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1214517290, now seen corresponding path program 1 times [2025-02-05 13:14:48,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 13:14:48,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082222561] [2025-02-05 13:14:48,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:48,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 13:14:48,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-05 13:14:49,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-05 13:14:49,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:49,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:14:49,022 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-05 13:14:49,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-05 13:14:49,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-05 13:14:49,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:49,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-05 13:14:49,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-05 13:14:49,057 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-05 13:14:49,058 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-05 13:14:49,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 13:14:49,063 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-05 13:14:49,076 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-05 13:14:49,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.02 01:14:49 BoogieIcfgContainer [2025-02-05 13:14:49,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-05 13:14:49,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-05 13:14:49,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-05 13:14:49,080 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-05 13:14:49,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:48" (3/4) ... [2025-02-05 13:14:49,082 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-05 13:14:49,084 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-05 13:14:49,085 INFO L158 Benchmark]: Toolchain (without parser) took 811.39ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 60.4MB in the end (delta: 46.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-05 13:14:49,085 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:49,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.57ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 95.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:49,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.05ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.4MB in the end (delta: 966.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:49,085 INFO L158 Benchmark]: Boogie Preprocessor took 21.90ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:49,086 INFO L158 Benchmark]: IcfgBuilder took 227.99ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 82.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-05 13:14:49,086 INFO L158 Benchmark]: TraceAbstraction took 357.99ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 60.4MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-05 13:14:49,087 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 142.6MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-05 13:14:49,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.57ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 95.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.05ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 94.4MB in the end (delta: 966.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.90ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 227.99ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 82.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 357.99ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 60.4MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 142.6MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 24, overapproximation of someBinaryFLOATComparisonOperation at line 51, overapproximation of to_real at line 22, overapproximation of someBinaryArithmeticFLOAToperation at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L15] float pi = 3.14159 ; VAL [pi=314159/100000] [L21] float x = __VERIFIER_nondet_float() ; [L22] float octant1 = 0 ; [L23] float octant2 = pi/8 ; [L24] CALL assume_abort_if_not(x > octant1 && x < octant2) [L11] COND FALSE !(!cond) VAL [pi=314159/100000] [L24] RET assume_abort_if_not(x > octant1 && x < octant2) [L25] float oddExp = x ; [L26] float evenExp = 1.0 ; [L27] float term = x ; [L28] unsigned int count = 2 ; [L29] int multFactor = 0 ; [L30] int temp ; VAL [count=2, pi=314159/100000] [L32] COND TRUE 1 [L34] term = term * (x/count) [L35] multFactor = (count>>1 % 2 == 0) ? 1 : -1 [L37] evenExp = evenExp + multFactor*term [L39] count++ [L41] term = term * (x/count) [L43] oddExp = oddExp + multFactor*term [L45] count++ [L47] temp = __VERIFIER_nondet_int() [L48] COND TRUE temp == 0 VAL [count=4, pi=314159/100000] [L51] CALL __VERIFIER_assert( evenExp >= oddExp ) [L13] COND TRUE !(cond) VAL [pi=314159/100000] [L13] reach_error() VAL [pi=314159/100000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-05 13:14:49,102 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/loop-floats-scientific-comp/loop3.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 bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 13:14:51,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 13:14:51,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-05 13:14:51,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 13:14:51,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 13:14:51,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 13:14:51,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 13:14:51,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 13:14:51,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 13:14:51,313 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 13:14:51,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 13:14:51,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 13:14:51,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 13:14:51,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 13:14:51,314 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 13:14:51,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 13:14:51,315 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:51,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 13:14:51,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 13:14:51,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 13:14:51,316 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 -> bd7fa6dfe7a0889f513bad4c7cfc96eb426f92168ff26ce4409068874579f6bc [2025-02-05 13:14:51,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 13:14:51,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 13:14:51,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 13:14:51,587 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 13:14:51,587 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 13:14:51,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2025-02-05 13:14:52,780 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e600ef526/205f9899f8d24b6fafffcb7d493443a5/FLAG8f17b20e7 [2025-02-05 13:14:52,936 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 13:14:52,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-floats-scientific-comp/loop3.c [2025-02-05 13:14:52,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e600ef526/205f9899f8d24b6fafffcb7d493443a5/FLAG8f17b20e7 [2025-02-05 13:14:52,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e600ef526/205f9899f8d24b6fafffcb7d493443a5 [2025-02-05 13:14:52,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 13:14:52,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 13:14:52,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:52,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 13:14:52,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 13:14:52,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:52" (1/1) ... [2025-02-05 13:14:52,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8777cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:52, skipping insertion in model container [2025-02-05 13:14:52,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 01:14:52" (1/1) ... [2025-02-05 13:14:52,973 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 13:14:53,082 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/loop-floats-scientific-comp/loop3.c[472,485] [2025-02-05 13:14:53,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:53,117 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 13:14:53,128 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/loop-floats-scientific-comp/loop3.c[472,485] [2025-02-05 13:14:53,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 13:14:53,152 INFO L204 MainTranslator]: Completed translation [2025-02-05 13:14:53,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53 WrapperNode [2025-02-05 13:14:53,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 13:14:53,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:53,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 13:14:53,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 13:14:53,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,177 INFO L138 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-02-05 13:14:53,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 13:14:53,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 13:14:53,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 13:14:53,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 13:14:53,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,193 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-02-05 13:14:53,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,197 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 13:14:53,202 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 13:14:53,202 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 13:14:53,202 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 13:14:53,203 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (1/1) ... [2025-02-05 13:14:53,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 13:14:53,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 13:14:53,227 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) [2025-02-05 13:14:53,239 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 [2025-02-05 13:14:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 13:14:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-05 13:14:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-05 13:14:53,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 13:14:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 13:14:53,311 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 13:14:53,313 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 13:14:57,580 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-02-05 13:14:57,580 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 13:14:57,586 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 13:14:57,587 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 13:14:57,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:57 BoogieIcfgContainer [2025-02-05 13:14:57,587 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 13:14:57,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 13:14:57,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 13:14:57,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 13:14:57,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 01:14:52" (1/3) ... [2025-02-05 13:14:57,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe053b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:57, skipping insertion in model container [2025-02-05 13:14:57,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 01:14:53" (2/3) ... [2025-02-05 13:14:57,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe053b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 01:14:57, skipping insertion in model container [2025-02-05 13:14:57,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 01:14:57" (3/3) ... [2025-02-05 13:14:57,595 INFO L128 eAbstractionObserver]: Analyzing ICFG loop3.c [2025-02-05 13:14:57,605 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 13:14:57,606 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop3.c that has 1 procedures, 14 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 13:14:57,669 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 13:14:57,679 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;@4cc4f605, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 13:14:57,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 13:14:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 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) [2025-02-05 13:14:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-05 13:14:57,689 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:57,689 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:14:57,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:57,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:57,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1118956250, now seen corresponding path program 1 times [2025-02-05 13:14:57,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:14:57,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557783455] [2025-02-05 13:14:57,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:57,701 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 [2025-02-05 13:14:57,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:14:57,703 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) [2025-02-05 13:14:57,705 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 [2025-02-05 13:14:57,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-05 13:14:57,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-05 13:14:57,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:14:57,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:14:57,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 13:14:57,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:14:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 13:14:57,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 13:14:57,802 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-05 13:14:57,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557783455] [2025-02-05 13:14:57,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557783455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 13:14:57,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 13:14:57,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 13:14:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30120743] [2025-02-05 13:14:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 13:14:57,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 13:14:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-05 13:14:57,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 13:14:57,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:57,820 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 13:14:57,827 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2025-02-05 13:14:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 13:14:57,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-05 13:14:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 13:14:57,832 INFO L225 Difference]: With dead ends: 25 [2025-02-05 13:14:57,832 INFO L226 Difference]: Without dead ends: 10 [2025-02-05 13:14:57,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 13:14:57,836 INFO L435 NwaCegarLoop]: 14 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, 14 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 [2025-02-05 13:14:57,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 13:14:57,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-02-05 13:14:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2025-02-05 13:14:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2025-02-05 13:14:57,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2025-02-05 13:14:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 13:14:57,856 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2025-02-05 13:14:57,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 13:14:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2025-02-05 13:14:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-05 13:14:57,856 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 13:14:57,856 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 13:14:57,861 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 [2025-02-05 13:14:58,057 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 [2025-02-05 13:14:58,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 13:14:58,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 13:14:58,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1214517290, now seen corresponding path program 1 times [2025-02-05 13:14:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-05 13:14:58,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434577908] [2025-02-05 13:14:58,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 13:14:58,061 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 [2025-02-05 13:14:58,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-05 13:14:58,063 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) [2025-02-05 13:14:58,065 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 [2025-02-05 13:14:58,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-05 13:15:01,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-05 13:15:01,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 13:15:01,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 13:15:01,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-05 13:15:01,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 13:15:12,184 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:15:20,341 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:15:28,486 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:15:36,612 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:15:40,661 WARN L851 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4294967295 32))) (.cse1 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv2 32)))))) (and (= |c_ULTIMATE.start_main_~evenExp~0#1| (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.mul roundNearestTiesToEven .cse0 .cse1))) (fp.lt |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 314159.0 100000.0))) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv8 32)))) (fp.gt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) (= (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.mul roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv3 32)))))) |c_ULTIMATE.start_main_~oddExp~0#1|)))) is different from false [2025-02-05 13:15:44,692 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~x~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv4294967295 32))) (.cse1 (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv2 32)))))) (and (= |c_ULTIMATE.start_main_~evenExp~0#1| (fp.add roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.mul roundNearestTiesToEven .cse0 .cse1))) (fp.lt |ULTIMATE.start_main_~x~0#1| (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 314159.0 100000.0))) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv8 32)))) (fp.gt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32))) (= (fp.add roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| (fp.mul roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven |ULTIMATE.start_main_~x~0#1| ((_ to_fp_unsigned 8 24) roundNearestTiesToEven (_ bv3 32)))))) |c_ULTIMATE.start_main_~oddExp~0#1|)))) is different from true [2025-02-05 13:15:52,238 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:16:00,389 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:16:08,527 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:16:16,641 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-02-05 13:16:33,336 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)