./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.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_no-floats_file-37.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 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 00:34:57,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 00:34:57,497 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 00:34:57,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 00:34:57,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 00:34:57,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 00:34:57,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 00:34:57,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 00:34:57,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 00:34:57,532 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 00:34:57,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 00:34:57,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 00:34:57,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 00:34:57,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 00:34:57,534 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 00:34:57,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 00:34:57,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 00:34:57,536 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 00:34:57,536 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 00:34:57,536 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 00:34:57,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 00:34:57,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:34:57,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 00:34:57,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 00:34:57,538 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 00:34:57,538 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 00:34:57,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 00:34:57,538 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 -> 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 [2025-02-06 00:34:57,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 00:34:57,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 00:34:57,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 00:34:57,834 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 00:34:57,835 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 00:34:57,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2025-02-06 00:34:59,102 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8373d2aa/4176dfdc7fab4e09aa4fdcd4da53e22d/FLAG85a7181dc [2025-02-06 00:34:59,365 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 00:34:59,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2025-02-06 00:34:59,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8373d2aa/4176dfdc7fab4e09aa4fdcd4da53e22d/FLAG85a7181dc [2025-02-06 00:34:59,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a8373d2aa/4176dfdc7fab4e09aa4fdcd4da53e22d [2025-02-06 00:34:59,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 00:34:59,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 00:34:59,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 00:34:59,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 00:34:59,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 00:34:59,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e0a1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59, skipping insertion in model container [2025-02-06 00:34:59,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 00:34:59,526 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_no-floats_file-37.i[916,929] [2025-02-06 00:34:59,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:34:59,576 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 00:34:59,584 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_no-floats_file-37.i[916,929] [2025-02-06 00:34:59,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:34:59,622 INFO L204 MainTranslator]: Completed translation [2025-02-06 00:34:59,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59 WrapperNode [2025-02-06 00:34:59,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 00:34:59,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 00:34:59,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 00:34:59,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 00:34:59,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,670 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2025-02-06 00:34:59,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 00:34:59,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 00:34:59,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 00:34:59,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 00:34:59,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,702 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 00:34:59,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,711 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 00:34:59,722 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 00:34:59,722 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 00:34:59,722 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 00:34:59,723 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (1/1) ... [2025-02-06 00:34:59,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:34:59,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:34:59,756 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 00:34:59,759 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 00:34:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 00:34:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 00:34:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 00:34:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 00:34:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 00:34:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 00:34:59,848 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 00:34:59,849 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 00:35:00,158 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L91: havoc property_#t~bitwise13#1; [2025-02-06 00:35:00,179 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-02-06 00:35:00,179 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 00:35:00,203 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 00:35:00,205 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 00:35:00,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:00 BoogieIcfgContainer [2025-02-06 00:35:00,206 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 00:35:00,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 00:35:00,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 00:35:00,212 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 00:35:00,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:34:59" (1/3) ... [2025-02-06 00:35:00,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d67844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:00, skipping insertion in model container [2025-02-06 00:35:00,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:34:59" (2/3) ... [2025-02-06 00:35:00,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d67844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:00, skipping insertion in model container [2025-02-06 00:35:00,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:00" (3/3) ... [2025-02-06 00:35:00,216 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-37.i [2025-02-06 00:35:00,229 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 00:35:00,232 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-37.i that has 2 procedures, 57 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 00:35:00,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 00:35:00,301 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@525756e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 00:35:00,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 00:35:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-02-06 00:35:00,319 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:00,319 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:00,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:00,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:00,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1277688286, now seen corresponding path program 1 times [2025-02-06 00:35:00,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:35:00,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128520385] [2025-02-06 00:35:00,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:35:00,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:00,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:00,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:00,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2025-02-06 00:35:00,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:35:00,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128520385] [2025-02-06 00:35:00,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128520385] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:35:00,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726597701] [2025-02-06 00:35:00,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:00,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:00,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:35:00,592 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 00:35:00,593 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 00:35:00,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:00,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:00,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:00,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:00,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 00:35:00,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2025-02-06 00:35:00,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 00:35:00,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726597701] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:35:00,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 00:35:00,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 00:35:00,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933114644] [2025-02-06 00:35:00,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:35:00,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 00:35:00,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:35:00,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 00:35:00,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:35:00,801 INFO L87 Difference]: Start difference. First operand has 57 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-06 00:35:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:35:00,850 INFO L93 Difference]: Finished difference Result 108 states and 179 transitions. [2025-02-06 00:35:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 00:35:00,854 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 105 [2025-02-06 00:35:00,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:35:00,860 INFO L225 Difference]: With dead ends: 108 [2025-02-06 00:35:00,861 INFO L226 Difference]: Without dead ends: 54 [2025-02-06 00:35:00,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 00:35:00,866 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 00:35:00,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 00:35:00,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-06 00:35:00,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-02-06 00:35:00,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2025-02-06 00:35:00,896 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 105 [2025-02-06 00:35:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:35:00,896 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2025-02-06 00:35:00,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-06 00:35:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2025-02-06 00:35:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-02-06 00:35:00,899 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:00,900 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:00,908 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 00:35:01,100 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 00:35:01,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:01,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2032757214, now seen corresponding path program 1 times [2025-02-06 00:35:01,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:35:01,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421789814] [2025-02-06 00:35:01,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:01,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:35:01,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:01,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:01,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:01,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 69 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2025-02-06 00:35:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:35:01,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421789814] [2025-02-06 00:35:01,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421789814] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:35:01,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641316923] [2025-02-06 00:35:01,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:01,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:01,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:35:01,955 INFO L229 MonitoredProcess]: Starting monitored process 3 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 00:35:01,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 00:35:02,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:02,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:02,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:02,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:02,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-06 00:35:02,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 236 proven. 87 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2025-02-06 00:35:02,838 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 00:35:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 96 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2025-02-06 00:35:03,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641316923] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 00:35:03,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 00:35:03,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 25 [2025-02-06 00:35:03,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690151316] [2025-02-06 00:35:03,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 00:35:03,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-06 00:35:03,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:35:03,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-06 00:35:03,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2025-02-06 00:35:03,453 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 25 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 9 states have call successors, (46), 4 states have call predecessors, (46), 9 states have return successors, (47), 7 states have call predecessors, (47), 9 states have call successors, (47) [2025-02-06 00:35:04,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:35:04,125 INFO L93 Difference]: Finished difference Result 125 states and 171 transitions. [2025-02-06 00:35:04,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 00:35:04,128 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 9 states have call successors, (46), 4 states have call predecessors, (46), 9 states have return successors, (47), 7 states have call predecessors, (47), 9 states have call successors, (47) Word has length 105 [2025-02-06 00:35:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:35:04,129 INFO L225 Difference]: With dead ends: 125 [2025-02-06 00:35:04,129 INFO L226 Difference]: Without dead ends: 74 [2025-02-06 00:35:04,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=416, Invalid=990, Unknown=0, NotChecked=0, Total=1406 [2025-02-06 00:35:04,131 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 259 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 00:35:04,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 264 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 00:35:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-02-06 00:35:04,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2025-02-06 00:35:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2025-02-06 00:35:04,166 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 105 [2025-02-06 00:35:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:35:04,167 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2025-02-06 00:35:04,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 9 states have call successors, (46), 4 states have call predecessors, (46), 9 states have return successors, (47), 7 states have call predecessors, (47), 9 states have call successors, (47) [2025-02-06 00:35:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2025-02-06 00:35:04,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-02-06 00:35:04,171 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:04,171 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:04,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 00:35:04,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:04,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:04,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:04,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1903674495, now seen corresponding path program 1 times [2025-02-06 00:35:04,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:35:04,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132718002] [2025-02-06 00:35:04,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:35:04,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:04,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:04,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:04,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 00:35:04,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293146762] [2025-02-06 00:35:04,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:04,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:04,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:35:04,514 INFO L229 MonitoredProcess]: Starting monitored process 4 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 00:35:04,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 00:35:04,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:04,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:04,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:04,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:04,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-06 00:35:04,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 254 proven. 48 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2025-02-06 00:35:29,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 00:35:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-02-06 00:35:29,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 00:35:29,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132718002] [2025-02-06 00:35:29,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 00:35:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293146762] [2025-02-06 00:35:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293146762] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 00:35:29,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 00:35:29,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2025-02-06 00:35:29,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426734663] [2025-02-06 00:35:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:35:29,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 00:35:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 00:35:29,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 00:35:29,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=119, Unknown=6, NotChecked=0, Total=156 [2025-02-06 00:35:29,953 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-02-06 00:35:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:35:30,084 INFO L93 Difference]: Finished difference Result 184 states and 236 transitions. [2025-02-06 00:35:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 00:35:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2025-02-06 00:35:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:35:30,086 INFO L225 Difference]: With dead ends: 184 [2025-02-06 00:35:30,086 INFO L226 Difference]: Without dead ends: 117 [2025-02-06 00:35:30,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=35, Invalid=141, Unknown=6, NotChecked=0, Total=182 [2025-02-06 00:35:30,090 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 73 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 00:35:30,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 261 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 00:35:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-02-06 00:35:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 71. [2025-02-06 00:35:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 49 states have internal predecessors, (59), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:30,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2025-02-06 00:35:30,117 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 105 [2025-02-06 00:35:30,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:35:30,117 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2025-02-06 00:35:30,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-02-06 00:35:30,118 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2025-02-06 00:35:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-02-06 00:35:30,119 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:30,119 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:30,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 00:35:30,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:30,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:30,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:30,326 INFO L85 PathProgramCache]: Analyzing trace with hash 583838338, now seen corresponding path program 1 times [2025-02-06 00:35:30,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 00:35:30,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807508738] [2025-02-06 00:35:30,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:30,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 00:35:30,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:30,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:30,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:30,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 00:35:30,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [27186361] [2025-02-06 00:35:30,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:30,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:30,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:35:30,421 INFO L229 MonitoredProcess]: Starting monitored process 5 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 00:35:30,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 00:35:30,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:30,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:30,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:30,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 00:35:30,568 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 00:35:30,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-06 00:35:30,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-06 00:35:30,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:30,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 00:35:30,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 00:35:30,653 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 00:35:30,654 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 00:35:30,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 00:35:30,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 00:35:30,860 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 00:35:30,937 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 00:35:30,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:35:30 BoogieIcfgContainer [2025-02-06 00:35:30,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 00:35:30,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 00:35:30,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 00:35:30,944 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 00:35:30,945 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:00" (3/4) ... [2025-02-06 00:35:30,947 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 00:35:30,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 00:35:30,949 INFO L158 Benchmark]: Toolchain (without parser) took 31557.92ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 54.5MB in the end (delta: 57.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2025-02-06 00:35:30,949 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 122.9MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 00:35:30,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.44ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 99.6MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 00:35:30,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.66ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 96.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 00:35:30,951 INFO L158 Benchmark]: Boogie Preprocessor took 50.31ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 94.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 00:35:30,951 INFO L158 Benchmark]: IcfgBuilder took 484.24ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 73.5MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 00:35:30,951 INFO L158 Benchmark]: TraceAbstraction took 30734.68ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 55.9MB in the end (delta: 17.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2025-02-06 00:35:30,951 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 142.6MB. Free memory was 55.9MB in the beginning and 54.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 00:35:30,954 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory was 123.2MB in the beginning and 122.9MB in the end (delta: 307.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.44ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 99.6MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.66ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 96.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.31ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 94.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 484.24ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 73.5MB in the end (delta: 21.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 30734.68ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 55.9MB in the end (delta: 17.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 142.6MB. Free memory was 55.9MB in the beginning and 54.5MB in the end (delta: 1.4MB). 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: 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 someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 91. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 8; [L23] unsigned short int var_1_2 = 59049; [L24] unsigned short int var_1_3 = 100; [L25] unsigned char var_1_6 = 16; [L26] signed char var_1_7 = -25; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 25; [L29] signed char var_1_10 = -10; [L30] signed char var_1_11 = 0; [L31] signed long int var_1_12 = 25; [L32] unsigned long int var_1_13 = 2531521428; [L33] signed long int var_1_14 = -128; [L34] signed long int var_1_15 = 256; [L35] signed short int var_1_16 = -16; VAL [isInitial=0, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=59049, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L64] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L66] var_1_3 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L67] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L72] var_1_8 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L73] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L75] var_1_9 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 <= 31) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L78] var_1_10 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L79] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=25, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L82] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L83] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L83] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L84] var_1_13 = __VERIFIER_nondet_ulong() [L85] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L85] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L86] CALL assume_abort_if_not(var_1_13 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L86] RET assume_abort_if_not(var_1_13 <= 4294967295) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L99] RET updateVariables() [L100] CALL step() [L39] var_1_14 = var_1_8 [L40] var_1_16 = var_1_14 [L41] signed long int stepLocal_0 = (((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)); VAL [isInitial=1, stepLocal_0=6, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=256, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L42] COND FALSE !(var_1_2 <= stepLocal_0) [L45] var_1_7 = var_1_10 VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=256, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L47] var_1_15 = var_1_16 VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L48] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L48] COND FALSE !(((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) [L51] var_1_1 = var_1_6 VAL [isInitial=1, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L53] unsigned char stepLocal_1 = var_1_1; VAL [isInitial=1, stepLocal_1=0, var_1_10=6, var_1_11=0, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L54] COND TRUE 2.75f > var_1_12 [L55] var_1_11 = (var_1_10 + var_1_8) VAL [isInitial=1, stepLocal_1=0, var_1_10=6, var_1_11=12, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) VAL [isInitial=1, var_1_10=6, var_1_11=12, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L91-L92] return ((((((((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_2 <= ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) ? (var_1_7 == ((signed char) ((var_1_8 - (1 + var_1_9)) + var_1_10))) : (var_1_7 == ((signed char) var_1_10)))) && ((2.75f > var_1_12) ? (var_1_11 == ((signed char) (var_1_10 + var_1_8))) : (((var_1_13 - ((((var_1_14) > (var_1_8)) ? (var_1_14) : (var_1_8)))) > var_1_1) ? (var_1_11 == ((signed char) ((((((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) < (var_1_10)) ? (((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) : (var_1_10))))) : 1))) && (var_1_14 == ((signed long int) var_1_8))) && (var_1_15 == ((signed long int) var_1_16))) && (var_1_16 == ((signed short int) var_1_14)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=6, var_1_11=12, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=6, var_1_11=12, var_1_12=-2147483648, var_1_13=-2147483649, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=6, var_1_8=6, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 30.6s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 332 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 602 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 366 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 521 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 236 mSDtfsCounter, 521 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 25.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 50 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 27.6s InterpolantComputationTime, 840 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 728 ConstructedInterpolants, 1 QuantifiedInterpolants, 2410 SizeOfPredicates, 7 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 3030/3360 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 00:35:31,019 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_no-floats_file-37.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 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 00:35:33,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 00:35:33,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-06 00:35:33,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 00:35:33,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 00:35:33,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 00:35:33,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 00:35:33,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 00:35:33,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 00:35:33,209 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 00:35:33,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 00:35:33,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 00:35:33,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 00:35:33,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 00:35:33,211 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 00:35:33,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 00:35:33,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 00:35:33,212 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 00:35:33,213 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 00:35:33,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 00:35:33,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 00:35:33,213 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 00:35:33,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 00:35:33,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 00:35:33,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 00:35:33,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:35:33,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 00:35:33,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 00:35:33,215 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 -> 27e8564535ea94ba0a863541d1c14289d03df32702288432171c1c39cf06e605 [2025-02-06 00:35:33,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 00:35:33,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 00:35:33,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 00:35:33,515 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 00:35:33,515 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 00:35:33,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2025-02-06 00:35:34,888 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd353e4a1/e5b78bef9e274e028023cde9afa57786/FLAG8c597e01b [2025-02-06 00:35:35,111 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 00:35:35,112 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-37.i [2025-02-06 00:35:35,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd353e4a1/e5b78bef9e274e028023cde9afa57786/FLAG8c597e01b [2025-02-06 00:35:35,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd353e4a1/e5b78bef9e274e028023cde9afa57786 [2025-02-06 00:35:35,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 00:35:35,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 00:35:35,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 00:35:35,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 00:35:35,474 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 00:35:35,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198bf93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35, skipping insertion in model container [2025-02-06 00:35:35,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,488 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 00:35:35,618 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_no-floats_file-37.i[916,929] [2025-02-06 00:35:35,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:35:35,699 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 00:35:35,708 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_no-floats_file-37.i[916,929] [2025-02-06 00:35:35,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 00:35:35,747 INFO L204 MainTranslator]: Completed translation [2025-02-06 00:35:35,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35 WrapperNode [2025-02-06 00:35:35,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 00:35:35,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 00:35:35,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 00:35:35,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 00:35:35,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,793 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2025-02-06 00:35:35,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 00:35:35,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 00:35:35,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 00:35:35,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 00:35:35,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,835 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 00:35:35,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,851 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 00:35:35,861 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 00:35:35,861 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 00:35:35,861 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 00:35:35,868 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (1/1) ... [2025-02-06 00:35:35,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 00:35:35,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 00:35:35,901 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 00:35:35,908 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 00:35:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 00:35:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 00:35:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 00:35:35,929 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 00:35:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 00:35:35,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 00:35:36,008 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 00:35:36,009 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 00:35:36,380 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-02-06 00:35:36,380 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 00:35:36,389 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 00:35:36,391 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 00:35:36,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:36 BoogieIcfgContainer [2025-02-06 00:35:36,391 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 00:35:36,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 00:35:36,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 00:35:36,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 00:35:36,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:35:35" (1/3) ... [2025-02-06 00:35:36,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1743dc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:36, skipping insertion in model container [2025-02-06 00:35:36,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:35" (2/3) ... [2025-02-06 00:35:36,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1743dc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:36, skipping insertion in model container [2025-02-06 00:35:36,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:36" (3/3) ... [2025-02-06 00:35:36,401 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-37.i [2025-02-06 00:35:36,414 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 00:35:36,416 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-37.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 00:35:36,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 00:35:36,480 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;@5e4f75b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 00:35:36,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 00:35:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:36,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-06 00:35:36,490 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:36,491 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:36,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:36,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1839599752, now seen corresponding path program 1 times [2025-02-06 00:35:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 00:35:36,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439538957] [2025-02-06 00:35:36,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:36,508 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 00:35:36,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 00:35:36,511 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 00:35:36,512 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 00:35:36,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 00:35:36,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 00:35:36,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:36,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:36,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 00:35:36,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2025-02-06 00:35:36,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 00:35:36,716 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 00:35:36,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439538957] [2025-02-06 00:35:36,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439538957] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 00:35:36,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 00:35:36,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 00:35:36,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69579177] [2025-02-06 00:35:36,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 00:35:36,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 00:35:36,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 00:35:36,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 00:35:36,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 00:35:36,743 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-06 00:35:36,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:35:36,769 INFO L93 Difference]: Finished difference Result 90 states and 149 transitions. [2025-02-06 00:35:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 00:35:36,772 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2025-02-06 00:35:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:35:36,779 INFO L225 Difference]: With dead ends: 90 [2025-02-06 00:35:36,779 INFO L226 Difference]: Without dead ends: 45 [2025-02-06 00:35:36,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 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 00:35:36,786 INFO L435 NwaCegarLoop]: 64 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, 64 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 00:35:36,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 00:35:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-02-06 00:35:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2025-02-06 00:35:36,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2025-02-06 00:35:36,847 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 102 [2025-02-06 00:35:36,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:35:36,848 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2025-02-06 00:35:36,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-06 00:35:36,848 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2025-02-06 00:35:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-06 00:35:36,850 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:36,850 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:36,858 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 [2025-02-06 00:35:37,051 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 00:35:37,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:37,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash -844005240, now seen corresponding path program 1 times [2025-02-06 00:35:37,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 00:35:37,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437941967] [2025-02-06 00:35:37,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:37,053 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 00:35:37,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 00:35:37,058 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 00:35:37,059 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 00:35:37,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 00:35:37,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 00:35:37,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:37,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:37,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 00:35:37,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2025-02-06 00:35:37,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 00:35:38,087 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 00:35:38,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437941967] [2025-02-06 00:35:38,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437941967] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:35:38,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [657023314] [2025-02-06 00:35:38,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:38,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 00:35:38,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 00:35:38,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 00:35:38,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2025-02-06 00:35:38,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 00:35:38,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 00:35:38,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:38,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:38,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 00:35:38,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 222 proven. 69 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2025-02-06 00:35:38,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 00:35:38,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [657023314] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:35:38,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 00:35:38,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2025-02-06 00:35:38,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610080311] [2025-02-06 00:35:38,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 00:35:38,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 00:35:38,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 00:35:38,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 00:35:38,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-02-06 00:35:38,781 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-06 00:35:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 00:35:39,481 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2025-02-06 00:35:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 00:35:39,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 102 [2025-02-06 00:35:39,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 00:35:39,484 INFO L225 Difference]: With dead ends: 99 [2025-02-06 00:35:39,485 INFO L226 Difference]: Without dead ends: 57 [2025-02-06 00:35:39,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2025-02-06 00:35:39,487 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 20 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 00:35:39,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 133 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 00:35:39,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-02-06 00:35:39,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2025-02-06 00:35:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-02-06 00:35:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2025-02-06 00:35:39,504 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 102 [2025-02-06 00:35:39,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 00:35:39,505 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2025-02-06 00:35:39,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-06 00:35:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2025-02-06 00:35:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-06 00:35:39,507 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 00:35:39,507 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 00:35:39,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-02-06 00:35:39,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2025-02-06 00:35:39,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-06 00:35:39,908 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 00:35:39,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 00:35:39,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1643507593, now seen corresponding path program 1 times [2025-02-06 00:35:39,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 00:35:39,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665923213] [2025-02-06 00:35:39,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:39,909 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 00:35:39,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 00:35:39,913 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-06 00:35:39,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-02-06 00:35:39,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 00:35:39,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 00:35:39,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:39,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:40,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 00:35:40,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 00:35:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 114 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-02-06 00:35:40,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 00:35:44,540 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 00:35:44,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665923213] [2025-02-06 00:35:44,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665923213] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 00:35:44,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1623629542] [2025-02-06 00:35:44,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 00:35:44,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 00:35:44,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 00:35:44,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 00:35:44,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2025-02-06 00:35:44,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-06 00:35:44,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-06 00:35:44,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 00:35:44,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 00:35:44,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-06 00:35:44,951 INFO L279 TraceCheckSpWp]: Computing forward predicates...