./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 04:24:43,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 04:24:43,321 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 04:24:43,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 04:24:43,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 04:24:43,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 04:24:43,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 04:24:43,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 04:24:43,347 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 04:24:43,347 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 04:24:43,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 04:24:43,347 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 04:24:43,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 04:24:43,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 04:24:43,347 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 04:24:43,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 04:24:43,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 04:24:43,348 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 04:24:43,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 04:24:43,349 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:24:43,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 04:24:43,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 04:24:43,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 04:24:43,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 04:24:43,350 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 [2025-03-17 04:24:43,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 04:24:43,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 04:24:43,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 04:24:43,591 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 04:24:43,592 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 04:24:43,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-03-17 04:24:44,726 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859bd8803/5f357115c23244489315a552ff516286/FLAGbc835b513 [2025-03-17 04:24:44,968 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 04:24:44,969 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-03-17 04:24:44,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859bd8803/5f357115c23244489315a552ff516286/FLAGbc835b513 [2025-03-17 04:24:45,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859bd8803/5f357115c23244489315a552ff516286 [2025-03-17 04:24:45,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 04:24:45,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 04:24:45,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 04:24:45,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 04:24:45,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 04:24:45,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d27413d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45, skipping insertion in model container [2025-03-17 04:24:45,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 04:24:45,412 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2025-03-17 04:24:45,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:24:45,447 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 04:24:45,454 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2025-03-17 04:24:45,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:24:45,469 INFO L204 MainTranslator]: Completed translation [2025-03-17 04:24:45,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45 WrapperNode [2025-03-17 04:24:45,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 04:24:45,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 04:24:45,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 04:24:45,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 04:24:45,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,507 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 58 [2025-03-17 04:24:45,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 04:24:45,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 04:24:45,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 04:24:45,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 04:24:45,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,523 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]. [2025-03-17 04:24:45,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,526 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 04:24:45,530 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 04:24:45,530 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 04:24:45,530 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 04:24:45,530 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (1/1) ... [2025-03-17 04:24:45,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:24:45,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:24:45,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 04:24:45,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 04:24:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 04:24:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 04:24:45,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 04:24:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 04:24:45,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 04:24:45,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 04:24:45,628 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 04:24:45,630 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 04:24:45,774 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-17 04:24:45,774 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 04:24:45,785 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 04:24:45,785 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 04:24:45,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:24:45 BoogieIcfgContainer [2025-03-17 04:24:45,786 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 04:24:45,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 04:24:45,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 04:24:45,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 04:24:45,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:24:45" (1/3) ... [2025-03-17 04:24:45,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40076e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:24:45, skipping insertion in model container [2025-03-17 04:24:45,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:45" (2/3) ... [2025-03-17 04:24:45,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40076e4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:24:45, skipping insertion in model container [2025-03-17 04:24:45,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:24:45" (3/3) ... [2025-03-17 04:24:45,795 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-83.i [2025-03-17 04:24:45,809 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 04:24:45,811 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-83.i that has 2 procedures, 22 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 04:24:45,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 04:24:45,864 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;@7cbcb8fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 04:24:45,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 04:24:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 04:24:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 04:24:45,874 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:24:45,875 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:24:45,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:24:45,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:24:45,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1655796372, now seen corresponding path program 1 times [2025-03-17 04:24:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:24:45,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551413097] [2025-03-17 04:24:45,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:24:45,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:24:45,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 04:24:45,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 04:24:45,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:24:45,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:24:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-17 04:24:46,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 04:24:46,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551413097] [2025-03-17 04:24:46,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551413097] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 04:24:46,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638111823] [2025-03-17 04:24:46,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:24:46,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 04:24:46,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:24:46,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 04:24:46,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 04:24:46,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 04:24:46,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 04:24:46,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:24:46,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:24:46,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 04:24:46,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:24:46,107 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-17 04:24:46,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 04:24:46,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638111823] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:24:46,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 04:24:46,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 04:24:46,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451986122] [2025-03-17 04:24:46,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:24:46,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 04:24:46,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 04:24:46,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 04:24:46,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:24:46,126 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 04:24:46,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:24:46,136 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2025-03-17 04:24:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 04:24:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2025-03-17 04:24:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:24:46,140 INFO L225 Difference]: With dead ends: 41 [2025-03-17 04:24:46,140 INFO L226 Difference]: Without dead ends: 20 [2025-03-17 04:24:46,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:24:46,144 INFO L435 NwaCegarLoop]: 25 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, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 04:24:46,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 04:24:46,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-03-17 04:24:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-03-17 04:24:46,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 04:24:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2025-03-17 04:24:46,168 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 34 [2025-03-17 04:24:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:24:46,169 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2025-03-17 04:24:46,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 04:24:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2025-03-17 04:24:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 04:24:46,170 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:24:46,171 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:24:46,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 04:24:46,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 04:24:46,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:24:46,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:24:46,372 INFO L85 PathProgramCache]: Analyzing trace with hash 966057547, now seen corresponding path program 1 times [2025-03-17 04:24:46,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 04:24:46,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076718230] [2025-03-17 04:24:46,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:24:46,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 04:24:46,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 04:24:46,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 04:24:46,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:24:46,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 04:24:46,436 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 04:24:46,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 04:24:46,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 04:24:46,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:24:46,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 04:24:46,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 04:24:46,490 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 04:24:46,491 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 04:24:46,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 04:24:46,495 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 04:24:46,513 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 04:24:46,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:24:46 BoogieIcfgContainer [2025-03-17 04:24:46,515 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 04:24:46,516 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 04:24:46,516 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 04:24:46,516 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 04:24:46,517 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:24:45" (3/4) ... [2025-03-17 04:24:46,518 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 04:24:46,519 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 04:24:46,519 INFO L158 Benchmark]: Toolchain (without parser) took 1214.21ms. Allocated memory is still 167.8MB. Free memory was 133.8MB in the beginning and 71.5MB in the end (delta: 62.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-17 04:24:46,519 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 04:24:46,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.27ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 122.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:46,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.91ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 04:24:46,520 INFO L158 Benchmark]: Boogie Preprocessor took 21.02ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:46,520 INFO L158 Benchmark]: IcfgBuilder took 256.54ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 106.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:46,520 INFO L158 Benchmark]: TraceAbstraction took 726.82ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 71.5MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-17 04:24:46,520 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 167.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 04:24:46,525 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.27ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 122.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.91ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.02ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.9MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 256.54ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 106.4MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 726.82ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 71.5MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 167.8MB. Free memory is still 71.5MB. 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 49, overapproximation of someBinaryFLOATComparisonOperation at line 34. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 2; [L23] unsigned char var_1_5 = 128; [L24] unsigned char var_1_6 = 0; [L25] unsigned char var_1_7 = 10; [L26] float var_1_8 = 128.25; [L27] float var_1_9 = 49.8; [L28] unsigned short int var_1_10 = 5; [L58] isInitial = 1 [L59] FCALL initially() [L60] COND TRUE 1 [L61] FCALL updateLastVariables() [L62] CALL updateVariables() [L42] var_1_5 = __VERIFIER_nondet_uchar() [L43] CALL assume_abort_if_not(var_1_5 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L43] RET assume_abort_if_not(var_1_5 >= 127) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L44] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L44] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=0, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L45] var_1_6 = __VERIFIER_nondet_uchar() [L46] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L46] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L47] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L47] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=10, var_1_8=513/4, var_1_9=249/5] [L48] var_1_9 = __VERIFIER_nondet_float() [L49] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=10, var_1_8=513/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=10, var_1_8=513/4] [L49] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=10, var_1_8=513/4] [L62] RET updateVariables() [L63] CALL step() [L32] var_1_7 = var_1_5 [L33] var_1_8 = var_1_9 VAL [isInitial=1, var_1_10=5, var_1_1=2, var_1_5=127, var_1_6=383, var_1_7=127, var_1_8=388, var_1_9=388] [L34] COND TRUE ((var_1_8 + var_1_8) * var_1_8) < -0.5f [L35] var_1_1 = (var_1_5 - var_1_6) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_5=127, var_1_6=383, var_1_7=127, var_1_8=388, var_1_9=388] [L39] var_1_10 = var_1_1 [L63] RET step() [L64] CALL, EXPR property() [L54-L55] return ((((((var_1_8 + var_1_8) * var_1_8) < -0.5f) ? (var_1_1 == ((unsigned char) (var_1_5 - var_1_6))) : (var_1_1 == ((unsigned char) var_1_5))) && (var_1_7 == ((unsigned char) var_1_5))) && (var_1_8 == ((float) var_1_9))) && (var_1_10 == ((unsigned short int) var_1_1)) ; [L64] RET, EXPR property() [L64] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_1=0, var_1_5=127, var_1_6=383, var_1_7=127, var_1_8=388, var_1_9=388] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_1=0, var_1_5=127, var_1_6=383, var_1_7=127, var_1_8=388, var_1_9=388] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 34 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 72/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 04:24:46,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 04:24:48,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 04:24:48,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-17 04:24:48,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 04:24:48,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 04:24:48,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 04:24:48,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 04:24:48,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 04:24:48,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 04:24:48,458 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 04:24:48,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 04:24:48,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 04:24:48,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 04:24:48,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 04:24:48,459 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 04:24:48,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 04:24:48,460 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 04:24:48,461 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 04:24:48,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 04:24:48,461 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 04:24:48,461 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 04:24:48,461 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 04:24:48,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:24:48,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 04:24:48,462 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 04:24:48,463 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 04:24:48,463 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 04:24:48,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 04:24:48,463 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45462a44a1fe505808d67e91a78e67cafa96659e5550122c89dde2fcb9d12b79 [2025-03-17 04:24:48,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 04:24:48,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 04:24:48,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 04:24:48,716 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 04:24:48,716 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 04:24:48,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-03-17 04:24:49,892 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83743ab6a/2524cd3fa34843e98318d02aaad178e9/FLAG1dec4a5df [2025-03-17 04:24:50,049 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 04:24:50,050 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i [2025-03-17 04:24:50,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83743ab6a/2524cd3fa34843e98318d02aaad178e9/FLAG1dec4a5df [2025-03-17 04:24:50,440 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83743ab6a/2524cd3fa34843e98318d02aaad178e9 [2025-03-17 04:24:50,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 04:24:50,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 04:24:50,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 04:24:50,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 04:24:50,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 04:24:50,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea9436c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50, skipping insertion in model container [2025-03-17 04:24:50,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 04:24:50,551 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2025-03-17 04:24:50,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:24:50,578 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 04:24:50,585 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-83.i[915,928] [2025-03-17 04:24:50,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 04:24:50,606 INFO L204 MainTranslator]: Completed translation [2025-03-17 04:24:50,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50 WrapperNode [2025-03-17 04:24:50,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 04:24:50,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 04:24:50,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 04:24:50,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 04:24:50,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,631 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 58 [2025-03-17 04:24:50,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 04:24:50,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 04:24:50,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 04:24:50,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 04:24:50,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,641 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,648 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]. [2025-03-17 04:24:50,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,653 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 04:24:50,662 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 04:24:50,662 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 04:24:50,662 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 04:24:50,667 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (1/1) ... [2025-03-17 04:24:50,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 04:24:50,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 04:24:50,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 04:24:50,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 04:24:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 04:24:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 04:24:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 04:24:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 04:24:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 04:24:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 04:24:50,778 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 04:24:50,780 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 04:24:51,551 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-17 04:24:51,551 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 04:24:51,561 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 04:24:51,561 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 04:24:51,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:24:51 BoogieIcfgContainer [2025-03-17 04:24:51,562 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 04:24:51,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 04:24:51,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 04:24:51,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 04:24:51,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:24:50" (1/3) ... [2025-03-17 04:24:51,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5484f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:24:51, skipping insertion in model container [2025-03-17 04:24:51,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:24:50" (2/3) ... [2025-03-17 04:24:51,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5484f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:24:51, skipping insertion in model container [2025-03-17 04:24:51,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:24:51" (3/3) ... [2025-03-17 04:24:51,571 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-83.i [2025-03-17 04:24:51,582 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 04:24:51,584 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-83.i that has 2 procedures, 22 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 04:24:51,627 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 04:24:51,637 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;@7b806349, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 04:24:51,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 04:24:51,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 04:24:51,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 04:24:51,645 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:24:51,646 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:24:51,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:24:51,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:24:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1655796372, now seen corresponding path program 1 times [2025-03-17 04:24:51,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 04:24:51,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010893312] [2025-03-17 04:24:51,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:24:51,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 04:24:51,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 04:24:51,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-17 04:24:51,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-17 04:24:51,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 04:24:51,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 04:24:51,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:24:51,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:24:51,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 04:24:51,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:24:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 04:24:51,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 04:24:51,821 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 04:24:51,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010893312] [2025-03-17 04:24:51,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010893312] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:24:51,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:24:51,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 04:24:51,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449123377] [2025-03-17 04:24:51,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:24:51,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 04:24:51,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 04:24:51,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 04:24:51,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:24:51,838 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 04:24:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:24:51,852 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2025-03-17 04:24:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 04:24:51,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2025-03-17 04:24:51,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:24:51,858 INFO L225 Difference]: With dead ends: 41 [2025-03-17 04:24:51,858 INFO L226 Difference]: Without dead ends: 20 [2025-03-17 04:24:51,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 04:24:51,863 INFO L435 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 04:24:51,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 04:24:51,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-03-17 04:24:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-03-17 04:24:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 04:24:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2025-03-17 04:24:51,890 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 34 [2025-03-17 04:24:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:24:51,891 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2025-03-17 04:24:51,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 04:24:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2025-03-17 04:24:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 04:24:51,893 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 04:24:51,894 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 04:24:51,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-03-17 04:24:52,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 04:24:52,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 04:24:52,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 04:24:52,095 INFO L85 PathProgramCache]: Analyzing trace with hash 966087338, now seen corresponding path program 1 times [2025-03-17 04:24:52,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 04:24:52,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741248337] [2025-03-17 04:24:52,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 04:24:52,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 04:24:52,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-17 04:24:52,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-17 04:24:52,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-17 04:24:52,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 04:24:52,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 04:24:52,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 04:24:52,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 04:24:52,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 04:24:52,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 04:24:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 04:24:54,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 04:24:54,433 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 04:24:54,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741248337] [2025-03-17 04:24:54,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741248337] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 04:24:54,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 04:24:54,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 04:24:54,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303067362] [2025-03-17 04:24:54,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 04:24:54,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 04:24:54,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 04:24:54,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 04:24:54,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-17 04:24:54,434 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 04:24:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 04:24:55,522 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2025-03-17 04:24:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 04:24:55,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 34 [2025-03-17 04:24:55,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 04:24:55,523 INFO L225 Difference]: With dead ends: 27 [2025-03-17 04:24:55,523 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 04:24:55,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-03-17 04:24:55,525 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 04:24:55,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 40 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 04:24:55,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 04:24:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 04:24:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 04:24:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 04:24:55,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2025-03-17 04:24:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 04:24:55,527 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 04:24:55,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 04:24:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 04:24:55,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 04:24:55,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 04:24:55,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-17 04:24:55,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-17 04:24:55,732 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 04:24:55,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 04:24:56,120 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 04:24:56,126 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-17 04:24:56,127 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-17 04:24:56,128 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-17 04:24:56,128 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-17 04:24:56,128 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-17 04:24:56,128 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-17 04:24:56,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:24:56 BoogieIcfgContainer [2025-03-17 04:24:56,128 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 04:24:56,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 04:24:56,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 04:24:56,129 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 04:24:56,129 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:24:51" (3/4) ... [2025-03-17 04:24:56,131 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 04:24:56,133 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-17 04:24:56,135 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-17 04:24:56,135 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-17 04:24:56,135 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 04:24:56,135 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 04:24:56,186 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 04:24:56,187 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 04:24:56,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 04:24:56,188 INFO L158 Benchmark]: Toolchain (without parser) took 5744.34ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 74.3MB in the end (delta: 18.7MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2025-03-17 04:24:56,188 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 04:24:56,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.90ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.9MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:56,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.32ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 04:24:56,190 INFO L158 Benchmark]: Boogie Preprocessor took 30.14ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:56,190 INFO L158 Benchmark]: IcfgBuilder took 899.74ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 66.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:56,190 INFO L158 Benchmark]: TraceAbstraction took 4564.10ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 80.4MB in the end (delta: -14.6MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2025-03-17 04:24:56,191 INFO L158 Benchmark]: Witness Printer took 58.07ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 74.3MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 04:24:56,192 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.90ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.9MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.32ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.14ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 899.74ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 66.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4564.10ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 80.4MB in the end (delta: -14.6MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Witness Printer took 58.07ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 74.3MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 34 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 37 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 8 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 80/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 04:24:56,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE