./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i --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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i -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 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 00:24:18,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 00:24:18,536 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 00:24:18,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 00:24:18,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 00:24:18,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 00:24:18,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 00:24:18,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 00:24:18,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 00:24:18,563 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 00:24:18,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 00:24:18,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 00:24:18,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 00:24:18,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 00:24:18,564 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 00:24:18,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 00:24:18,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 00:24:18,564 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 00:24:18,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 00:24:18,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 00:24:18,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 00:24:18,565 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 00:24:18,565 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 00:24:18,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 00:24:18,566 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 00:24:18,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 00:24:18,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:24:18,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 00:24:18,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 00:24:18,566 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 00:24:18,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 00:24:18,567 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 -> 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 [2025-02-06 00:24:18,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 00:24:18,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 00:24:18,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 00:24:18,846 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 00:24:18,846 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 00:24:18,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-02-06 00:24:20,271 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1afef390d/110ecda189f94feb8d61a0cedd23e0d7/FLAGa3cfb61b0 [2025-02-06 00:24:20,523 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 00:24:20,529 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-02-06 00:24:20,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1afef390d/110ecda189f94feb8d61a0cedd23e0d7/FLAGa3cfb61b0 [2025-02-06 00:24:20,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1afef390d/110ecda189f94feb8d61a0cedd23e0d7 [2025-02-06 00:24:20,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 00:24:20,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 00:24:20,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 00:24:20,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 00:24:20,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 00:24:20,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae93f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20, skipping insertion in model container [2025-02-06 00:24:20,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 00:24:20,735 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-02-06 00:24:20,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:24:20,791 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 00:24:20,804 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-02-06 00:24:20,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:24:20,836 INFO L204 MainTranslator]: Completed translation [2025-02-06 00:24:20,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20 WrapperNode [2025-02-06 00:24:20,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 00:24:20,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 00:24:20,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 00:24:20,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 00:24:20,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,880 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2025-02-06 00:24:20,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 00:24:20,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 00:24:20,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 00:24:20,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 00:24:20,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,900 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 00:24:20,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,906 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 00:24:20,915 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 00:24:20,915 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 00:24:20,915 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 00:24:20,916 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (1/1) ... [2025-02-06 00:24:20,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:24:20,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:24:20,949 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) [2025-02-06 00:24:20,951 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 [2025-02-06 00:24:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 00:24:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 00:24:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 00:24:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 00:24:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 00:24:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 00:24:21,024 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 00:24:21,026 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 00:24:21,280 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-06 00:24:21,280 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 00:24:21,293 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 00:24:21,293 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 00:24:21,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:24:21 BoogieIcfgContainer [2025-02-06 00:24:21,296 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 00:24:21,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 00:24:21,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 00:24:21,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 00:24:21,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:24:20" (1/3) ... [2025-02-06 00:24:21,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210846a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:24:21, skipping insertion in model container [2025-02-06 00:24:21,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:20" (2/3) ... [2025-02-06 00:24:21,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210846a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:24:21, skipping insertion in model container [2025-02-06 00:24:21,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:24:21" (3/3) ... [2025-02-06 00:24:21,305 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-47.i [2025-02-06 00:24:21,319 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 00:24:21,321 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-47.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 00:24:21,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 00:24:21,392 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;@31189742, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 00:24:21,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 00:24:21,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 00:24:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 00:24:21,407 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:24:21,407 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:24:21,408 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:24:21,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:24:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2068581461, now seen corresponding path program 1 times [2025-02-06 00:24:21,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:24:21,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779672702] [2025-02-06 00:24:21,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:24:21,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:24:21,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 00:24:21,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 00:24:21,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:24:21,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:24:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-02-06 00:24:21,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:24:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779672702] [2025-02-06 00:24:21,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779672702] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:24:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553991445] [2025-02-06 00:24:21,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:24:21,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:24:21,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:24:21,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 00:24:21,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 00:24:21,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 00:24:21,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 00:24:21,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:24:21,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:24:21,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 00:24:21,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:24:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-02-06 00:24:21,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 00:24:21,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553991445] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:24:21,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 00:24:21,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 00:24:21,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906482455] [2025-02-06 00:24:21,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:24:21,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 00:24:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:24:21,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 00:24:21,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:24:21,841 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-06 00:24:21,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:24:21,856 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2025-02-06 00:24:21,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 00:24:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2025-02-06 00:24:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:24:21,864 INFO L225 Difference]: With dead ends: 76 [2025-02-06 00:24:21,865 INFO L226 Difference]: Without dead ends: 38 [2025-02-06 00:24:21,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:24:21,870 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2025-02-06 00:24:21,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 00:24:21,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-02-06 00:24:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-02-06 00:24:21,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 00:24:21,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2025-02-06 00:24:21,906 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 65 [2025-02-06 00:24:21,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:24:21,907 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2025-02-06 00:24:21,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-06 00:24:21,907 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2025-02-06 00:24:21,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 00:24:21,910 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:24:21,910 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:24:21,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 00:24:22,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 00:24:22,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:24:22,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:24:22,112 INFO L85 PathProgramCache]: Analyzing trace with hash -365407542, now seen corresponding path program 1 times [2025-02-06 00:24:22,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:24:22,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666457654] [2025-02-06 00:24:22,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:24:22,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:24:22,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 00:24:22,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 00:24:22,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:24:22,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 00:24:22,227 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 00:24:22,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 00:24:22,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 00:24:22,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:24:22,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 00:24:22,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 00:24:22,307 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 00:24:22,308 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 00:24:22,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 00:24:22,312 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 00:24:22,382 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 00:24:22,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:24:22 BoogieIcfgContainer [2025-02-06 00:24:22,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 00:24:22,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 00:24:22,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 00:24:22,386 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 00:24:22,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:24:21" (3/4) ... [2025-02-06 00:24:22,388 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 00:24:22,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 00:24:22,391 INFO L158 Benchmark]: Toolchain (without parser) took 1823.61ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 108.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2025-02-06 00:24:22,391 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 00:24:22,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.14ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 00:24:22,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.19ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 98.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 00:24:22,393 INFO L158 Benchmark]: Boogie Preprocessor took 32.53ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 00:24:22,394 INFO L158 Benchmark]: IcfgBuilder took 380.96ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 82.4MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 00:24:22,394 INFO L158 Benchmark]: TraceAbstraction took 1087.20ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 108.4MB in the end (delta: -26.4MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2025-02-06 00:24:22,395 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 108.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 00:24:22,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.14ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.19ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 98.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.53ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 96.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 380.96ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 82.4MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1087.20ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 108.4MB in the end (delta: -26.4MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 108.3MB in the end (delta: 27.1kB). 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: 19]: 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 someUnaryDOUBLEoperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 24.575; [L23] double var_1_8 = 3.5; [L24] signed char var_1_9 = 16; [L25] signed char var_1_10 = 16; [L26] signed char var_1_11 = 4; [L27] signed long int var_1_12 = 8; [L28] unsigned char var_1_13 = 1; [L29] unsigned char var_1_14 = 1; [L30] double var_1_15 = 3.8; [L31] signed long int last_1_var_1_12 = 8; VAL [isInitial=0, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_8=7/2, var_1_9=16] [L85] isInitial = 1 [L86] FCALL initially() [L87] COND TRUE 1 [L88] CALL updateLastVariables() [L78] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_8=7/2, var_1_9=16] [L88] RET updateLastVariables() [L89] CALL updateVariables() [L62] var_1_8 = __VERIFIER_nondet_double() [L63] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L63] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=16, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L64] var_1_10 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L65] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L66] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L66] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=4, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L67] var_1_11 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L68] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L69] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L69] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L70] var_1_13 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L71] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L72] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L72] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L73] var_1_14 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L74] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L75] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L75] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=16] [L89] RET updateVariables() [L90] CALL step() [L35] COND FALSE !(-4 > last_1_var_1_12) [L40] var_1_9 = var_1_10 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=0] [L42] unsigned char stepLocal_0 = ! var_1_13; VAL [isInitial=1, last_1_var_1_12=8, stepLocal_0=0, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=0] [L43] COND FALSE !(stepLocal_0 || var_1_14) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=19/5, var_1_1=983/40, var_1_9=0] [L50] var_1_15 = var_1_8 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=68, var_1_1=983/40, var_1_8=68, var_1_9=0] [L51] COND TRUE var_1_15 <= var_1_15 VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=68, var_1_1=983/40, var_1_8=68, var_1_9=0] [L52] COND TRUE (var_1_12 + var_1_12) >= (var_1_12 + var_1_9) [L53] var_1_1 = ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=68, var_1_1=68, var_1_8=68, var_1_9=0] [L90] RET step() [L91] CALL, EXPR property() [L81-L82] return ((((var_1_15 <= var_1_15) ? (((var_1_12 + var_1_12) >= (var_1_12 + var_1_9)) ? (var_1_1 == ((double) ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) : 1) : ((var_1_12 > var_1_9) ? (var_1_1 == ((double) var_1_8)) : 1)) && ((-4 > last_1_var_1_12) ? (((~ last_1_var_1_12) <= last_1_var_1_12) ? (var_1_9 == ((signed char) ((((var_1_10 + var_1_11) < 0 ) ? -(var_1_10 + var_1_11) : (var_1_10 + var_1_11))))) : 1) : (var_1_9 == ((signed char) var_1_10)))) && (((! var_1_13) || var_1_14) ? ((! var_1_14) ? (var_1_12 == ((signed long int) (((((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))) < 0 ) ? -((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))) : ((((var_1_9) < (var_1_9)) ? (var_1_9) : (var_1_9))))))) : (var_1_12 == ((signed long int) var_1_9))) : 1)) && (var_1_15 == ((double) var_1_8)) ; VAL [\result=0, isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=68, var_1_1=68, var_1_8=68, var_1_9=0] [L91] RET, EXPR property() [L91] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=68, var_1_1=68, var_1_8=68, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=8, var_1_10=0, var_1_11=63, var_1_12=8, var_1_13=1, var_1_14=0, var_1_15=68, var_1_1=68, var_1_8=68, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 53 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, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 272/288 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 [2025-02-06 00:24:22,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i -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 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 00:24:24,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 00:24:24,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-06 00:24:24,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 00:24:24,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 00:24:24,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 00:24:24,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 00:24:24,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 00:24:24,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 00:24:24,861 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 00:24:24,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 00:24:24,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 00:24:24,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 00:24:24,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 00:24:24,862 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 00:24:24,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 00:24:24,863 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 00:24:24,864 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 00:24:24,864 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 00:24:24,864 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 00:24:24,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 00:24:24,864 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 00:24:24,864 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 00:24:24,864 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 00:24:24,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 00:24:24,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 00:24:24,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 00:24:24,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:24:24,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 00:24:24,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 00:24:24,865 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 00:24:24,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 00:24:24,866 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 -> 9e92930e750196482f17f07849312ddc82a1b9515fee56924e2c0ca266f21be0 [2025-02-06 00:24:25,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 00:24:25,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 00:24:25,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 00:24:25,172 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 00:24:25,172 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 00:24:25,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-02-06 00:24:26,528 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1fb70d302/acacbaeba6484fdf896fcd611a21ef1b/FLAG25e2cc921 [2025-02-06 00:24:26,780 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 00:24:26,781 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i [2025-02-06 00:24:26,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1fb70d302/acacbaeba6484fdf896fcd611a21ef1b/FLAG25e2cc921 [2025-02-06 00:24:26,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1fb70d302/acacbaeba6484fdf896fcd611a21ef1b [2025-02-06 00:24:26,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 00:24:26,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 00:24:26,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 00:24:26,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 00:24:26,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 00:24:26,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:24:26" (1/1) ... [2025-02-06 00:24:26,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ae725a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:26, skipping insertion in model container [2025-02-06 00:24:26,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:24:26" (1/1) ... [2025-02-06 00:24:26,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 00:24:26,981 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-02-06 00:24:27,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:24:27,056 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 00:24:27,068 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/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-47.i[917,930] [2025-02-06 00:24:27,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:24:27,120 INFO L204 MainTranslator]: Completed translation [2025-02-06 00:24:27,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27 WrapperNode [2025-02-06 00:24:27,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 00:24:27,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 00:24:27,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 00:24:27,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 00:24:27,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,170 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2025-02-06 00:24:27,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 00:24:27,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 00:24:27,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 00:24:27,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 00:24:27,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,203 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 00:24:27,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 00:24:27,221 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 00:24:27,221 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 00:24:27,221 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 00:24:27,223 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (1/1) ... [2025-02-06 00:24:27,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:24:27,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:24:27,260 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) [2025-02-06 00:24:27,266 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 [2025-02-06 00:24:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 00:24:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 00:24:27,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 00:24:27,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 00:24:27,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 00:24:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 00:24:27,367 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 00:24:27,370 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 00:24:27,598 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-06 00:24:27,599 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 00:24:27,607 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 00:24:27,607 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 00:24:27,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:24:27 BoogieIcfgContainer [2025-02-06 00:24:27,607 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 00:24:27,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 00:24:27,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 00:24:27,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 00:24:27,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:24:26" (1/3) ... [2025-02-06 00:24:27,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b67e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:24:27, skipping insertion in model container [2025-02-06 00:24:27,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:24:27" (2/3) ... [2025-02-06 00:24:27,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b67e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:24:27, skipping insertion in model container [2025-02-06 00:24:27,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:24:27" (3/3) ... [2025-02-06 00:24:27,618 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-47.i [2025-02-06 00:24:27,631 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 00:24:27,633 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-47.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 00:24:27,687 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 00:24:27,698 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;@3eca07dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 00:24:27,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 00:24:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 00:24:27,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 00:24:27,712 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:24:27,713 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:24:27,713 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:24:27,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:24:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2068581461, now seen corresponding path program 1 times [2025-02-06 00:24:27,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 00:24:27,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008203089] [2025-02-06 00:24:27,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:24:27,728 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 [2025-02-06 00:24:27,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 00:24:27,731 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) [2025-02-06 00:24:27,733 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 [2025-02-06 00:24:27,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 00:24:27,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 00:24:27,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:24:27,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:24:27,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 00:24:27,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:24:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-02-06 00:24:27,902 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 00:24:27,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 00:24:27,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008203089] [2025-02-06 00:24:27,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008203089] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:24:27,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:24:27,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 00:24:27,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909130734] [2025-02-06 00:24:27,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:24:27,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 00:24:27,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 00:24:27,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 00:24:27,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:24:27,936 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-06 00:24:27,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:24:27,953 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2025-02-06 00:24:27,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 00:24:27,955 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2025-02-06 00:24:27,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:24:27,959 INFO L225 Difference]: With dead ends: 76 [2025-02-06 00:24:27,960 INFO L226 Difference]: Without dead ends: 38 [2025-02-06 00:24:27,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:24:27,964 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2025-02-06 00:24:27,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 00:24:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-02-06 00:24:27,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-02-06 00:24:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 00:24:28,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2025-02-06 00:24:28,005 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 65 [2025-02-06 00:24:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:24:28,005 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2025-02-06 00:24:28,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-06 00:24:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2025-02-06 00:24:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 00:24:28,008 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:24:28,008 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:24:28,016 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 (2)] Forceful destruction successful, exit code 0 [2025-02-06 00:24:28,209 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 [2025-02-06 00:24:28,209 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:24:28,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:24:28,210 INFO L85 PathProgramCache]: Analyzing trace with hash -365407542, now seen corresponding path program 1 times [2025-02-06 00:24:28,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 00:24:28,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100216873] [2025-02-06 00:24:28,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:24:28,212 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 [2025-02-06 00:24:28,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 00:24:28,214 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) [2025-02-06 00:24:28,217 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 [2025-02-06 00:24:28,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 00:24:28,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 00:24:28,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:24:28,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:24:28,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 00:24:28,324 INFO L279 TraceCheckSpWp]: Computing forward predicates...