./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f37f28e985fa9cd213de5b59fc80c1b7aa5c342cca2d3369965275ac128fee1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:09:42,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:09:42,172 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:09:42,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:09:42,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:09:42,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:09:42,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:09:42,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:09:42,190 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:09:42,190 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:09:42,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:09:42,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:09:42,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:09:42,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:09:42,191 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:09:42,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:09:42,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:09:42,191 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:09:42,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:09:42,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:09:42,194 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:09:42,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:09:42,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:09:42,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f37f28e985fa9cd213de5b59fc80c1b7aa5c342cca2d3369965275ac128fee1 [2025-02-06 02:09:42,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:09:42,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:09:42,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:09:42,412 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:09:42,413 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:09:42,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i [2025-02-06 02:09:43,539 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0e00c974d/d03ff01d9a4341baa66e6af0517cbe4e/FLAG1ffcffd03 [2025-02-06 02:09:43,758 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:09:43,759 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i [2025-02-06 02:09:43,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0e00c974d/d03ff01d9a4341baa66e6af0517cbe4e/FLAG1ffcffd03 [2025-02-06 02:09:44,101 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0e00c974d/d03ff01d9a4341baa66e6af0517cbe4e [2025-02-06 02:09:44,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:09:44,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:09:44,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:09:44,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:09:44,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:09:44,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfbbdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44, skipping insertion in model container [2025-02-06 02:09:44,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:09:44,213 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i[914,927] [2025-02-06 02:09:44,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:09:44,254 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:09:44,262 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i[914,927] [2025-02-06 02:09:44,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:09:44,289 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:09:44,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44 WrapperNode [2025-02-06 02:09:44,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:09:44,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:09:44,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:09:44,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:09:44,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,313 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2025-02-06 02:09:44,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:09:44,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:09:44,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:09:44,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:09:44,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,329 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 02:09:44,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,333 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:09:44,336 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:09:44,336 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:09:44,336 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:09:44,337 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (1/1) ... [2025-02-06 02:09:44,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:09:44,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:09:44,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 02:09:44,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 02:09:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:09:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:09:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:09:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:09:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:09:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:09:44,423 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:09:44,424 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:09:44,565 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-02-06 02:09:44,565 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:09:44,574 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:09:44,574 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:09:44,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:09:44 BoogieIcfgContainer [2025-02-06 02:09:44,575 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:09:44,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:09:44,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:09:44,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:09:44,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:09:44" (1/3) ... [2025-02-06 02:09:44,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eceb481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:09:44, skipping insertion in model container [2025-02-06 02:09:44,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:44" (2/3) ... [2025-02-06 02:09:44,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eceb481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:09:44, skipping insertion in model container [2025-02-06 02:09:44,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:09:44" (3/3) ... [2025-02-06 02:09:44,583 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-3.i [2025-02-06 02:09:44,595 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:09:44,597 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-3.i that has 2 procedures, 36 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:09:44,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:09:44,655 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;@234b2b6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:09:44,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:09:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:09:44,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-06 02:09:44,666 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:09:44,667 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:09:44,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:09:44,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:09:44,673 INFO L85 PathProgramCache]: Analyzing trace with hash -224157392, now seen corresponding path program 1 times [2025-02-06 02:09:44,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:09:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346784180] [2025-02-06 02:09:44,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:09:44,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:09:44,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 02:09:44,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 02:09:44,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:44,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:09:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-02-06 02:09:44,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:09:44,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346784180] [2025-02-06 02:09:44,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346784180] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:09:44,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672878808] [2025-02-06 02:09:44,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:09:44,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:09:44,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:09:44,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:09:44,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 02:09:44,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 02:09:44,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 02:09:44,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:44,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:09:44,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:09:44,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:09:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2025-02-06 02:09:44,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:09:44,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672878808] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:09:44,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:09:44,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:09:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279439289] [2025-02-06 02:09:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:09:44,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:09:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:09:44,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:09:44,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:09:44,916 INFO L87 Difference]: Start difference. First operand has 36 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 02:09:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:09:44,928 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2025-02-06 02:09:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:09:44,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2025-02-06 02:09:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:09:44,934 INFO L225 Difference]: With dead ends: 66 [2025-02-06 02:09:44,934 INFO L226 Difference]: Without dead ends: 33 [2025-02-06 02:09:44,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:09:44,941 INFO L435 NwaCegarLoop]: 45 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, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:09:44,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:09:44,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-02-06 02:09:44,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-02-06 02:09:44,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:09:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2025-02-06 02:09:44,970 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 55 [2025-02-06 02:09:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:09:44,970 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2025-02-06 02:09:44,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 02:09:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2025-02-06 02:09:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-06 02:09:44,972 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:09:44,972 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:09:44,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 02:09:45,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 02:09:45,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:09:45,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:09:45,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1045983216, now seen corresponding path program 1 times [2025-02-06 02:09:45,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:09:45,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150627005] [2025-02-06 02:09:45,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:09:45,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:09:45,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 02:09:45,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 02:09:45,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:45,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 02:09:45,227 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 02:09:45,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 02:09:45,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 02:09:45,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:45,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 02:09:45,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 02:09:45,270 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 02:09:45,271 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 02:09:45,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:09:45,275 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 02:09:45,308 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 02:09:45,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 02:09:45 BoogieIcfgContainer [2025-02-06 02:09:45,312 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 02:09:45,312 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 02:09:45,312 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 02:09:45,312 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 02:09:45,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:09:44" (3/4) ... [2025-02-06 02:09:45,315 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 02:09:45,316 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 02:09:45,317 INFO L158 Benchmark]: Toolchain (without parser) took 1213.01ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 60.5MB in the end (delta: 62.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-06 02:09:45,318 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:09:45,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.21ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:09:45,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.57ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:09:45,320 INFO L158 Benchmark]: Boogie Preprocessor took 21.35ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 108.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:09:45,320 INFO L158 Benchmark]: IcfgBuilder took 238.75ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 96.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:09:45,320 INFO L158 Benchmark]: TraceAbstraction took 734.80ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 60.9MB in the end (delta: 34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 02:09:45,320 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 167.8MB. Free memory was 60.9MB in the beginning and 60.5MB in the end (delta: 448.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:09:45,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.21ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.4MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.57ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 110.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.35ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 108.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 238.75ms. Allocated memory is still 167.8MB. Free memory was 108.7MB in the beginning and 96.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 734.80ms. Allocated memory is still 167.8MB. Free memory was 95.8MB in the beginning and 60.9MB in the end (delta: 34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 167.8MB. Free memory was 60.9MB in the beginning and 60.5MB in the end (delta: 448.3kB). 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 47, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 52, overapproximation of someBinaryFLOATComparisonOperation at line 31. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 25; [L23] float var_1_2 = 128.2; [L24] unsigned char var_1_3 = 1; [L25] float var_1_4 = 32.32; [L26] unsigned char var_1_5 = 0; [L27] signed short int var_1_6 = 64; VAL [isInitial=0, var_1_1=25, var_1_2=641/5, var_1_3=1, var_1_4=808/25, var_1_5=0, var_1_6=64] [L67] isInitial = 1 [L68] FCALL initially() [L69] COND TRUE 1 [L70] FCALL updateLastVariables() [L71] CALL updateVariables() [L46] var_1_2 = __VERIFIER_nondet_float() [L47] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=1, var_1_4=808/25, var_1_5=0, var_1_6=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=1, var_1_4=808/25, var_1_5=0, var_1_6=64] [L47] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=25, var_1_3=1, var_1_4=808/25, var_1_5=0, var_1_6=64] [L48] var_1_3 = __VERIFIER_nondet_uchar() [L49] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_4=808/25, var_1_5=0, var_1_6=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_4=808/25, var_1_5=0, var_1_6=64] [L49] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=25, var_1_4=808/25, var_1_5=0, var_1_6=64] [L50] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_4=808/25, var_1_5=0, var_1_6=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_4=808/25, var_1_5=0, var_1_6=64] [L50] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_4=808/25, var_1_5=0, var_1_6=64] [L51] var_1_4 = __VERIFIER_nondet_float() [L52] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=0, var_1_6=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=0, var_1_6=64] [L52] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=0, var_1_6=64] [L53] var_1_5 = __VERIFIER_nondet_uchar() [L54] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_6=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_6=64] [L54] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_6=64] [L55] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=64] [L55] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=64] [L56] var_1_6 = __VERIFIER_nondet_short() [L57] CALL assume_abort_if_not(var_1_6 >= -32767) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L57] RET assume_abort_if_not(var_1_6 >= -32767) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L58] CALL assume_abort_if_not(var_1_6 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L58] RET assume_abort_if_not(var_1_6 <= 32766) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L71] RET updateVariables() [L72] CALL step() [L31] COND FALSE !(99999.8f < var_1_2) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L72] RET step() [L73] CALL, EXPR property() [L63-L64] return (99999.8f < var_1_2) ? ((! var_1_3) ? ((var_1_2 >= (var_1_4 / 2.5f)) ? (var_1_3 ? (var_1_5 ? (var_1_1 == ((signed short int) var_1_6)) : 1) : (var_1_1 == ((signed short int) var_1_6))) : 1) : 1) : 1 ; VAL [\result=0, isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L73] RET, EXPR property() [L73] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] [L19] reach_error() VAL [isInitial=1, var_1_1=25, var_1_3=0, var_1_5=1, var_1_6=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 8, 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, 45 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, 45 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 210/224 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 02:09:45,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1f37f28e985fa9cd213de5b59fc80c1b7aa5c342cca2d3369965275ac128fee1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:09:47,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:09:47,293 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-06 02:09:47,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:09:47,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:09:47,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:09:47,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:09:47,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:09:47,328 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:09:47,328 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:09:47,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:09:47,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:09:47,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:09:47,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:09:47,329 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:09:47,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 02:09:47,330 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:09:47,331 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:09:47,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:09:47,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:09:47,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:09:47,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:09:47,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:09:47,333 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f37f28e985fa9cd213de5b59fc80c1b7aa5c342cca2d3369965275ac128fee1 [2025-02-06 02:09:47,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:09:47,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:09:47,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:09:47,590 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:09:47,590 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:09:47,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i [2025-02-06 02:09:48,777 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/171710860/8fae2c2380ab49de8f934c84435f31dc/FLAGa19df6df0 [2025-02-06 02:09:48,979 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:09:48,980 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i [2025-02-06 02:09:48,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/171710860/8fae2c2380ab49de8f934c84435f31dc/FLAGa19df6df0 [2025-02-06 02:09:49,002 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/171710860/8fae2c2380ab49de8f934c84435f31dc [2025-02-06 02:09:49,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:09:49,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:09:49,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:09:49,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:09:49,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:09:49,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7013fe13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49, skipping insertion in model container [2025-02-06 02:09:49,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:09:49,134 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i[914,927] [2025-02-06 02:09:49,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:09:49,175 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:09:49,183 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-3.i[914,927] [2025-02-06 02:09:49,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:09:49,208 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:09:49,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49 WrapperNode [2025-02-06 02:09:49,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:09:49,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:09:49,210 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:09:49,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:09:49,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,239 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 67 [2025-02-06 02:09:49,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:09:49,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:09:49,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:09:49,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:09:49,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,258 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 02:09:49,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,269 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:09:49,277 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:09:49,277 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:09:49,277 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:09:49,278 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (1/1) ... [2025-02-06 02:09:49,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:09:49,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:09:49,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 02:09:49,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 02:09:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:09:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 02:09:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:09:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:09:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:09:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:09:49,387 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:09:49,389 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:09:49,867 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-02-06 02:09:49,868 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:09:49,875 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:09:49,875 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:09:49,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:09:49 BoogieIcfgContainer [2025-02-06 02:09:49,876 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:09:49,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:09:49,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:09:49,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:09:49,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:09:49" (1/3) ... [2025-02-06 02:09:49,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2746c57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:09:49, skipping insertion in model container [2025-02-06 02:09:49,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:09:49" (2/3) ... [2025-02-06 02:09:49,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2746c57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:09:49, skipping insertion in model container [2025-02-06 02:09:49,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:09:49" (3/3) ... [2025-02-06 02:09:49,886 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-3.i [2025-02-06 02:09:49,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:09:49,899 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-3.i that has 2 procedures, 36 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:09:49,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:09:49,950 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;@cbf720, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:09:49,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:09:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:09:49,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-06 02:09:49,959 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:09:49,960 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:09:49,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:09:49,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:09:49,964 INFO L85 PathProgramCache]: Analyzing trace with hash -224157392, now seen corresponding path program 1 times [2025-02-06 02:09:49,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:09:49,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689198912] [2025-02-06 02:09:49,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:09:49,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:09:49,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:09:49,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-06 02:09:49,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-06 02:09:50,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 02:09:50,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 02:09:50,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:50,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:09:50,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:09:50,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:09:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-06 02:09:50,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:09:50,189 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:09:50,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689198912] [2025-02-06 02:09:50,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689198912] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:09:50,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:09:50,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 02:09:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781835271] [2025-02-06 02:09:50,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:09:50,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:09:50,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:09:50,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:09:50,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:09:50,208 INFO L87 Difference]: Start difference. First operand has 36 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 02:09:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:09:50,221 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2025-02-06 02:09:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:09:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2025-02-06 02:09:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:09:50,226 INFO L225 Difference]: With dead ends: 66 [2025-02-06 02:09:50,226 INFO L226 Difference]: Without dead ends: 33 [2025-02-06 02:09:50,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:09:50,230 INFO L435 NwaCegarLoop]: 45 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, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:09:50,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:09:50,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-02-06 02:09:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-02-06 02:09:50,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:09:50,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2025-02-06 02:09:50,262 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 55 [2025-02-06 02:09:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:09:50,263 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2025-02-06 02:09:50,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 02:09:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2025-02-06 02:09:50,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-06 02:09:50,265 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:09:50,265 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:09:50,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-02-06 02:09:50,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:09:50,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:09:50,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:09:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1045983216, now seen corresponding path program 1 times [2025-02-06 02:09:50,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:09:50,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82035509] [2025-02-06 02:09:50,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:09:50,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:09:50,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:09:50,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-06 02:09:50,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-06 02:09:50,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-02-06 02:09:50,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-02-06 02:09:50,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:50,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:09:50,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:09:50,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:09:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 02:09:57,959 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:09:57,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:09:57,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82035509] [2025-02-06 02:09:57,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82035509] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:09:57,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:09:57,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:09:57,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88456984] [2025-02-06 02:09:57,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:09:57,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:09:57,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:09:57,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:09:57,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:09:57,962 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:09:59,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:09:59,234 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2025-02-06 02:09:59,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:09:59,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2025-02-06 02:09:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:09:59,236 INFO L225 Difference]: With dead ends: 41 [2025-02-06 02:09:59,237 INFO L226 Difference]: Without dead ends: 39 [2025-02-06 02:09:59,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:09:59,237 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:09:59,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 158 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 02:09:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-02-06 02:09:59,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2025-02-06 02:09:59,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:09:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2025-02-06 02:09:59,244 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 55 [2025-02-06 02:09:59,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:09:59,247 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2025-02-06 02:09:59,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:09:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2025-02-06 02:09:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-02-06 02:09:59,249 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:09:59,249 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:09:59,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-02-06 02:09:59,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:09:59,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:09:59,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:09:59,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1955438114, now seen corresponding path program 1 times [2025-02-06 02:09:59,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:09:59,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865423675] [2025-02-06 02:09:59,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:09:59,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:09:59,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:09:59,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-06 02:09:59,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-02-06 02:09:59,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-06 02:09:59,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 02:09:59,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:09:59,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:09:59,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 02:09:59,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:10:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 02:10:03,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:10:03,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:10:03,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865423675] [2025-02-06 02:10:03,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865423675] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:10:03,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:10:03,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:10:03,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727524321] [2025-02-06 02:10:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:10:03,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:10:03,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:10:03,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:10:03,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:10:03,347 INFO L87 Difference]: Start difference. First operand 36 states and 48 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:10:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:10:04,483 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2025-02-06 02:10:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:10:04,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2025-02-06 02:10:04,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:10:04,484 INFO L225 Difference]: With dead ends: 47 [2025-02-06 02:10:04,484 INFO L226 Difference]: Without dead ends: 45 [2025-02-06 02:10:04,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:10:04,485 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 18 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:10:04,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 190 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 02:10:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-02-06 02:10:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2025-02-06 02:10:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:10:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2025-02-06 02:10:04,490 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 56 [2025-02-06 02:10:04,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:10:04,490 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2025-02-06 02:10:04,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:10:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2025-02-06 02:10:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-06 02:10:04,492 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:10:04,492 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:10:04,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-02-06 02:10:04,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:10:04,693 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:10:04,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:10:04,693 INFO L85 PathProgramCache]: Analyzing trace with hash -512065874, now seen corresponding path program 1 times [2025-02-06 02:10:04,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:10:04,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509051616] [2025-02-06 02:10:04,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:10:04,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:10:04,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:10:04,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-06 02:10:04,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-02-06 02:10:04,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-06 02:10:04,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 02:10:04,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:10:04,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:10:04,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 02:10:04,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:10:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 02:10:08,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:10:08,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:10:08,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509051616] [2025-02-06 02:10:08,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509051616] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:10:08,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:10:08,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 02:10:08,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657590697] [2025-02-06 02:10:08,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:10:08,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:10:08,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:10:08,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:10:08,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:10:08,006 INFO L87 Difference]: Start difference. First operand 36 states and 48 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:10:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:10:15,494 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2025-02-06 02:10:15,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 02:10:15,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 57 [2025-02-06 02:10:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:10:15,502 INFO L225 Difference]: With dead ends: 83 [2025-02-06 02:10:15,502 INFO L226 Difference]: Without dead ends: 50 [2025-02-06 02:10:15,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:10:15,503 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 24 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:10:15,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 196 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-02-06 02:10:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-02-06 02:10:15,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2025-02-06 02:10:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 02:10:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2025-02-06 02:10:15,507 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 57 [2025-02-06 02:10:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:10:15,507 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2025-02-06 02:10:15,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:10:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2025-02-06 02:10:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-06 02:10:15,509 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:10:15,509 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:10:15,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-02-06 02:10:15,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:10:15,710 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:10:15,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:10:15,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1280030043, now seen corresponding path program 1 times [2025-02-06 02:10:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:10:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365261078] [2025-02-06 02:10:15,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:10:15,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:10:15,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:10:15,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-06 02:10:15,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-02-06 02:10:15,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 02:10:15,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 02:10:15,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:10:15,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:10:15,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 02:10:15,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:10:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 02:10:20,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:10:20,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:10:20,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365261078] [2025-02-06 02:10:20,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365261078] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:10:20,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:10:20,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 02:10:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902170484] [2025-02-06 02:10:20,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:10:20,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 02:10:20,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:10:20,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 02:10:20,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:10:20,985 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:10:30,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:10:30,288 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2025-02-06 02:10:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:10:30,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 58 [2025-02-06 02:10:30,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:10:30,300 INFO L225 Difference]: With dead ends: 50 [2025-02-06 02:10:30,300 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 02:10:30,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 02:10:30,301 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 23 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-02-06 02:10:30,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 200 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2025-02-06 02:10:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 02:10:30,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 02:10:30,302 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) [2025-02-06 02:10:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 02:10:30,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2025-02-06 02:10:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:10:30,302 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 02:10:30,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-06 02:10:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 02:10:30,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 02:10:30,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 02:10:30,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2025-02-06 02:10:30,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-06 02:10:30,507 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-06 02:10:30,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 02:10:30,522 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 02:10:30,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 02:10:30 BoogieIcfgContainer [2025-02-06 02:10:30,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 02:10:30,532 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 02:10:30,532 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 02:10:30,532 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 02:10:30,533 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:09:49" (3/4) ... [2025-02-06 02:10:30,534 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 02:10:30,544 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-06 02:10:30,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-06 02:10:30,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 02:10:30,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 02:10:30,548 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 02:10:30,607 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 02:10:30,607 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 02:10:30,607 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 02:10:30,607 INFO L158 Benchmark]: Toolchain (without parser) took 41600.15ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 85.6MB in the end (delta: 5.9MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2025-02-06 02:10:30,608 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:10:30,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.99ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:10:30,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.12ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:10:30,609 INFO L158 Benchmark]: Boogie Preprocessor took 36.01ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:10:30,610 INFO L158 Benchmark]: IcfgBuilder took 598.43ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 64.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:10:30,610 INFO L158 Benchmark]: TraceAbstraction took 40654.38ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 33.9MB in the end (delta: 29.8MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2025-02-06 02:10:30,610 INFO L158 Benchmark]: Witness Printer took 74.94ms. Allocated memory is still 117.4MB. Free memory was 33.9MB in the beginning and 85.6MB in the end (delta: -51.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:10:30,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 83.9MB. Free memory was 61.9MB in the beginning and 61.8MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.99ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.12ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.01ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 76.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 598.43ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 64.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 40654.38ms. Allocated memory is still 117.4MB. Free memory was 63.7MB in the beginning and 33.9MB in the end (delta: 29.8MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Witness Printer took 74.94ms. Allocated memory is still 117.4MB. Free memory was 33.9MB in the beginning and 85.6MB in the end (delta: -51.7MB). Peak memory consumption was 8.4MB. 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 - 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, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.6s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 11.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 789 SdHoareTripleChecker+Invalid, 11.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 559 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 230 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 5 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 SizeOfPredicates, 28 NumberOfNonLiveVariables, 467 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 560/560 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! [2025-02-06 02:10:30,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE