./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-87.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-87.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 e560e39513eb26595349bb5183c466d93aeda0a374e3c004705ee1f38a5b90f4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:12:38,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:12:38,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:12:38,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:12:38,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:12:38,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:12:38,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:12:38,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:12:38,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:12:38,157 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:12:38,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:12:38,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:12:38,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:12:38,157 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:12:38,157 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:12:38,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:12:38,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:12:38,158 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:12:38,159 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:12:38,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:12:38,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:12:38,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:12:38,160 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 -> e560e39513eb26595349bb5183c466d93aeda0a374e3c004705ee1f38a5b90f4 [2025-02-06 02:12:38,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:12:38,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:12:38,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:12:38,397 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:12:38,397 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:12:38,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-87.i [2025-02-06 02:12:39,551 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ebff934fd/2d20d9d827b24c678463e77c8930de0f/FLAG1944e0da9 [2025-02-06 02:12:39,812 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:12:39,812 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-87.i [2025-02-06 02:12:39,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ebff934fd/2d20d9d827b24c678463e77c8930de0f/FLAG1944e0da9 [2025-02-06 02:12:39,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ebff934fd/2d20d9d827b24c678463e77c8930de0f [2025-02-06 02:12:39,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:12:39,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:12:39,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:12:39,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:12:39,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:12:39,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:12:39" (1/1) ... [2025-02-06 02:12:39,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340f9b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:39, skipping insertion in model container [2025-02-06 02:12:39,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:12:39" (1/1) ... [2025-02-06 02:12:39,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:12:39,946 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-87.i[915,928] [2025-02-06 02:12:39,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:12:39,978 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:12:39,987 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-87.i[915,928] [2025-02-06 02:12:39,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:12:40,014 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:12:40,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40 WrapperNode [2025-02-06 02:12:40,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:12:40,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:12:40,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:12:40,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:12:40,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,036 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2025-02-06 02:12:40,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:12:40,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:12:40,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:12:40,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:12:40,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,054 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 02:12:40,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,057 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:12:40,061 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:12:40,061 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:12:40,061 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:12:40,062 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (1/1) ... [2025-02-06 02:12:40,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:12:40,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:12:40,090 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 02:12:40,093 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 02:12:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:12:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:12:40,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:12:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:12:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:12:40,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:12:40,153 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:12:40,154 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:12:40,271 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-06 02:12:40,271 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:12:40,281 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:12:40,281 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:12:40,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:12:40 BoogieIcfgContainer [2025-02-06 02:12:40,282 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:12:40,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:12:40,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:12:40,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:12:40,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:12:39" (1/3) ... [2025-02-06 02:12:40,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42aff7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:12:40, skipping insertion in model container [2025-02-06 02:12:40,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:40" (2/3) ... [2025-02-06 02:12:40,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42aff7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:12:40, skipping insertion in model container [2025-02-06 02:12:40,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:12:40" (3/3) ... [2025-02-06 02:12:40,288 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-87.i [2025-02-06 02:12:40,297 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:12:40,298 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-87.i that has 2 procedures, 37 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:12:40,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:12:40,347 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;@324cedd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:12:40,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:12:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 02:12:40,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 02:12:40,354 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:12:40,355 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:40,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:12:40,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:12:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash -64130486, now seen corresponding path program 1 times [2025-02-06 02:12:40,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:12:40,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657160348] [2025-02-06 02:12:40,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:40,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:12:40,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 02:12:40,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 02:12:40,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:40,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:12:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-02-06 02:12:40,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:12:40,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657160348] [2025-02-06 02:12:40,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657160348] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:12:40,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112835526] [2025-02-06 02:12:40,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:40,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:12:40,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:12:40,530 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 02:12:40,533 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 02:12:40,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 02:12:40,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 02:12:40,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:40,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:12:40,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:12:40,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:12:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-02-06 02:12:40,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:12:40,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112835526] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:12:40,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:12:40,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:12:40,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485898394] [2025-02-06 02:12:40,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:12:40,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:12:40,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:12:40,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:12:40,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:12:40,678 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 02:12:40,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:12:40,695 INFO L93 Difference]: Finished difference Result 68 states and 108 transitions. [2025-02-06 02:12:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:12:40,697 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-02-06 02:12:40,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:12:40,702 INFO L225 Difference]: With dead ends: 68 [2025-02-06 02:12:40,703 INFO L226 Difference]: Without dead ends: 34 [2025-02-06 02:12:40,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 02:12:40,709 INFO L435 NwaCegarLoop]: 46 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, 46 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 02:12:40,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:12:40,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-02-06 02:12:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-02-06 02:12:40,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 02:12:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2025-02-06 02:12:40,742 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 71 [2025-02-06 02:12:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:12:40,743 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2025-02-06 02:12:40,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 02:12:40,743 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2025-02-06 02:12:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 02:12:40,746 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:12:40,746 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:40,753 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 02:12:40,947 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 02:12:40,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:12:40,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:12:40,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1507486187, now seen corresponding path program 1 times [2025-02-06 02:12:40,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:12:40,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629825738] [2025-02-06 02:12:40,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:40,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:12:40,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 02:12:41,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 02:12:41,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:41,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 02:12:41,027 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 02:12:41,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 02:12:41,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 02:12:41,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:41,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 02:12:41,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 02:12:41,109 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 02:12:41,110 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 02:12:41,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:12:41,113 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 02:12:41,161 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 02:12:41,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 02:12:41 BoogieIcfgContainer [2025-02-06 02:12:41,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 02:12:41,166 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 02:12:41,166 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 02:12:41,166 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 02:12:41,167 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:12:40" (3/4) ... [2025-02-06 02:12:41,168 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 02:12:41,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 02:12:41,170 INFO L158 Benchmark]: Toolchain (without parser) took 1330.16ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 102.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2025-02-06 02:12:41,171 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:12:41,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.98ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 94.0MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:41,171 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.98ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:12:41,172 INFO L158 Benchmark]: Boogie Preprocessor took 23.97ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:41,172 INFO L158 Benchmark]: IcfgBuilder took 221.18ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 78.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:41,172 INFO L158 Benchmark]: TraceAbstraction took 879.75ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 103.4MB in the end (delta: -26.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2025-02-06 02:12:41,172 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 102.6MB in the end (delta: 802.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:12:41,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.98ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 94.0MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.98ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 92.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.97ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 90.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 221.18ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 78.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 879.75ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 103.4MB in the end (delta: -26.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 102.6MB in the end (delta: 802.0kB). 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 62, overapproximation of someBinaryFLOATComparisonOperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned short int var_1_3 = 64; [L24] signed long int var_1_4 = 5; [L25] unsigned char var_1_5 = 1; [L26] unsigned char var_1_6 = 0; [L27] unsigned char var_1_7 = 0; [L28] unsigned long int var_1_8 = 0; [L29] float var_1_9 = 256.75; [L30] float var_1_10 = 99.2; VAL [isInitial=0, var_1_10=496/5, var_1_1=1, var_1_3=64, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L71] isInitial = 1 [L72] FCALL initially() [L73] COND TRUE 1 [L74] FCALL updateLastVariables() [L75] CALL updateVariables() [L46] var_1_3 = __VERIFIER_nondet_ushort() [L47] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L47] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L48] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L48] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L49] var_1_4 = __VERIFIER_nondet_long() [L50] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L50] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L51] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L51] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L52] var_1_5 = __VERIFIER_nondet_uchar() [L53] CALL assume_abort_if_not(var_1_5 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L53] RET assume_abort_if_not(var_1_5 >= 1) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L54] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L54] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L55] var_1_6 = __VERIFIER_nondet_uchar() [L56] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L56] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L57] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L57] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L58] var_1_7 = __VERIFIER_nondet_uchar() [L59] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_8=0, var_1_9=1027/4] [L59] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_8=0, var_1_9=1027/4] [L60] CALL assume_abort_if_not(var_1_7 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L60] RET assume_abort_if_not(var_1_7 <= 0) VAL [isInitial=1, var_1_10=496/5, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L61] var_1_10 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L62] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=1027/4] [L75] RET updateVariables() [L76] CALL step() [L34] var_1_8 = var_1_3 [L35] var_1_9 = var_1_10 [L36] signed long int stepLocal_0 = 10 - var_1_4; VAL [isInitial=1, stepLocal_0=9, var_1_10=261, var_1_1=1, var_1_3=5, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=5, var_1_9=261] [L37] COND TRUE (var_1_8 + var_1_8) > stepLocal_0 [L38] var_1_1 = var_1_5 VAL [isInitial=1, var_1_10=261, var_1_1=-255, var_1_3=5, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=5, var_1_9=261] [L76] RET step() [L77] CALL, EXPR property() [L67-L68] return ((((var_1_8 + var_1_8) > (10 - var_1_4)) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_5 ? (var_1_1 == ((unsigned char) (var_1_6 || var_1_7))) : 1)) && (var_1_8 == ((unsigned long int) var_1_3))) && (var_1_9 == ((float) var_1_10)) ; VAL [\result=0, isInitial=1, var_1_10=261, var_1_1=-255, var_1_3=5, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=5, var_1_9=261] [L77] RET, EXPR property() [L77] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=261, var_1_1=-255, var_1_3=5, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=5, var_1_9=261] [L19] reach_error() VAL [isInitial=1, var_1_10=261, var_1_1=-255, var_1_3=5, var_1_4=1, var_1_5=-255, var_1_6=0, var_1_7=0, var_1_8=5, var_1_9=261] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 11, 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, 46 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, 46 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 420/440 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 02:12:41,186 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-87.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 e560e39513eb26595349bb5183c466d93aeda0a374e3c004705ee1f38a5b90f4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:12:43,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:12:43,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-06 02:12:43,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:12:43,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:12:43,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:12:43,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:12:43,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:12:43,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:12:43,112 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:12:43,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:12:43,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:12:43,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:12:43,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:12:43,113 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:12:43,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 02:12:43,114 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:12:43,115 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:12:43,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:12:43,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:12:43,116 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 02:12:43,116 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 02:12:43,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:12:43,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:12:43,116 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:12:43,116 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:12:43,116 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 -> e560e39513eb26595349bb5183c466d93aeda0a374e3c004705ee1f38a5b90f4 [2025-02-06 02:12:43,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:12:43,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:12:43,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:12:43,339 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:12:43,340 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:12:43,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-87.i [2025-02-06 02:12:44,507 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8eb57b5fa/5742db0c8bc24faba42176dd0bc20601/FLAG9e6345b64 [2025-02-06 02:12:44,708 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:12:44,708 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-87.i [2025-02-06 02:12:44,715 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8eb57b5fa/5742db0c8bc24faba42176dd0bc20601/FLAG9e6345b64 [2025-02-06 02:12:45,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8eb57b5fa/5742db0c8bc24faba42176dd0bc20601 [2025-02-06 02:12:45,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:12:45,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:12:45,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:12:45,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:12:45,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:12:45,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f48e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45, skipping insertion in model container [2025-02-06 02:12:45,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:12:45,193 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-87.i[915,928] [2025-02-06 02:12:45,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:12:45,226 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:12:45,233 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-87.i[915,928] [2025-02-06 02:12:45,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:12:45,252 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:12:45,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45 WrapperNode [2025-02-06 02:12:45,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:12:45,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:12:45,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:12:45,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:12:45,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,283 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2025-02-06 02:12:45,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:12:45,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:12:45,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:12:45,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:12:45,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,294 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,312 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 02:12:45,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,321 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:12:45,335 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:12:45,335 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:12:45,335 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:12:45,336 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (1/1) ... [2025-02-06 02:12:45,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:12:45,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:12:45,363 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 02:12:45,369 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 02:12:45,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:12:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 02:12:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:12:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:12:45,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:12:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:12:45,441 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:12:45,444 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:12:45,592 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-06 02:12:45,593 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:12:45,599 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:12:45,599 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:12:45,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:12:45 BoogieIcfgContainer [2025-02-06 02:12:45,599 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:12:45,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:12:45,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:12:45,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:12:45,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:12:45" (1/3) ... [2025-02-06 02:12:45,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eeaa09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:12:45, skipping insertion in model container [2025-02-06 02:12:45,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:12:45" (2/3) ... [2025-02-06 02:12:45,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eeaa09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:12:45, skipping insertion in model container [2025-02-06 02:12:45,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:12:45" (3/3) ... [2025-02-06 02:12:45,606 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-87.i [2025-02-06 02:12:45,617 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:12:45,618 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-87.i that has 2 procedures, 37 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:12:45,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:12:45,657 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;@5ee7038c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:12:45,657 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:12:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 02:12:45,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 02:12:45,665 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:12:45,665 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:45,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:12:45,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:12:45,669 INFO L85 PathProgramCache]: Analyzing trace with hash -64130486, now seen corresponding path program 1 times [2025-02-06 02:12:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:12:45,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410163716] [2025-02-06 02:12:45,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:45,677 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 02:12:45,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:12:45,679 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 02:12:45,681 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 02:12:45,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 02:12:45,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 02:12:45,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:45,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:12:45,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:12:45,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:12:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-02-06 02:12:45,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:12:45,839 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:12:45,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410163716] [2025-02-06 02:12:45,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410163716] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:12:45,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:12:45,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 02:12:45,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4871301] [2025-02-06 02:12:45,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:12:45,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:12:45,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:12:45,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:12:45,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:12:45,861 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 02:12:45,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:12:45,878 INFO L93 Difference]: Finished difference Result 68 states and 108 transitions. [2025-02-06 02:12:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:12:45,882 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2025-02-06 02:12:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:12:45,886 INFO L225 Difference]: With dead ends: 68 [2025-02-06 02:12:45,886 INFO L226 Difference]: Without dead ends: 34 [2025-02-06 02:12:45,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 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 02:12:45,891 INFO L435 NwaCegarLoop]: 46 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, 46 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 02:12:45,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:12:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-02-06 02:12:45,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-02-06 02:12:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 02:12:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2025-02-06 02:12:45,925 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 71 [2025-02-06 02:12:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:12:45,926 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2025-02-06 02:12:45,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-06 02:12:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2025-02-06 02:12:45,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 02:12:45,931 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:12:45,931 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:45,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-02-06 02:12:46,131 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 02:12:46,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:12:46,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:12:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1507486187, now seen corresponding path program 1 times [2025-02-06 02:12:46,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:12:46,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019532118] [2025-02-06 02:12:46,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:46,133 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 02:12:46,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:12:46,135 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 02:12:46,136 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 02:12:46,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 02:12:46,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 02:12:46,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:46,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:12:46,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 02:12:46,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:12:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-02-06 02:12:47,892 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:12:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-06 02:12:49,100 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:12:49,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019532118] [2025-02-06 02:12:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019532118] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 02:12:49,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:12:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 20 [2025-02-06 02:12:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376017044] [2025-02-06 02:12:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:12:49,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 02:12:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:12:49,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 02:12:49,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2025-02-06 02:12:49,103 INFO L87 Difference]: Start difference. First operand 34 states and 46 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-06 02:12:49,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:12:49,452 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2025-02-06 02:12:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 02:12:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 71 [2025-02-06 02:12:49,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:12:49,453 INFO L225 Difference]: With dead ends: 50 [2025-02-06 02:12:49,453 INFO L226 Difference]: Without dead ends: 48 [2025-02-06 02:12:49,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2025-02-06 02:12:49,454 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 83 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:12:49,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 133 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:12:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2025-02-06 02:12:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 41. [2025-02-06 02:12:49,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 02:12:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2025-02-06 02:12:49,461 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 71 [2025-02-06 02:12:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:12:49,462 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2025-02-06 02:12:49,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-06 02:12:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2025-02-06 02:12:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-02-06 02:12:49,462 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:12:49,463 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:49,467 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 (3)] Ended with exit code 0 [2025-02-06 02:12:49,663 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 02:12:49,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:12:49,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:12:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -424772423, now seen corresponding path program 1 times [2025-02-06 02:12:49,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:12:49,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279450108] [2025-02-06 02:12:49,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:49,665 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 02:12:49,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:12:49,668 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 02:12:49,670 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 02:12:49,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-02-06 02:12:49,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-02-06 02:12:49,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:49,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:12:49,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 02:12:49,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:12:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 102 proven. 21 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2025-02-06 02:12:50,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:12:52,274 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-06 02:12:52,275 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:12:52,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279450108] [2025-02-06 02:12:52,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279450108] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 02:12:52,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:12:52,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 22 [2025-02-06 02:12:52,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4178443] [2025-02-06 02:12:52,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:12:52,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 02:12:52,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:12:52,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 02:12:52,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2025-02-06 02:12:52,276 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-06 02:12:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:12:52,732 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2025-02-06 02:12:52,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 02:12:52,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2025-02-06 02:12:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:12:52,734 INFO L225 Difference]: With dead ends: 56 [2025-02-06 02:12:52,735 INFO L226 Difference]: Without dead ends: 54 [2025-02-06 02:12:52,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2025-02-06 02:12:52,736 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 76 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:12:52,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 136 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:12:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-06 02:12:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2025-02-06 02:12:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 02:12:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2025-02-06 02:12:52,748 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 72 [2025-02-06 02:12:52,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:12:52,748 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2025-02-06 02:12:52,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-06 02:12:52,748 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2025-02-06 02:12:52,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-02-06 02:12:52,749 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:12:52,749 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:52,754 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 (4)] Forceful destruction successful, exit code 0 [2025-02-06 02:12:52,949 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 02:12:52,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:12:52,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:12:52,950 INFO L85 PathProgramCache]: Analyzing trace with hash -423848902, now seen corresponding path program 1 times [2025-02-06 02:12:52,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 02:12:52,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585041467] [2025-02-06 02:12:52,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:12:52,951 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 02:12:52,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-06 02:12:52,953 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 02:12:52,954 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 02:12:52,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-02-06 02:12:53,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-02-06 02:12:53,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:12:53,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:12:53,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 02:12:53,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:12:53,067 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-02-06 02:12:53,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:12:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-02-06 02:12:53,147 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 02:12:53,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585041467] [2025-02-06 02:12:53,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585041467] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:12:53,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 02:12:53,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2025-02-06 02:12:53,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134512405] [2025-02-06 02:12:53,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 02:12:53,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:12:53,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 02:12:53,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:12:53,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:12:53,150 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-06 02:12:53,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:12:53,248 INFO L93 Difference]: Finished difference Result 88 states and 107 transitions. [2025-02-06 02:12:53,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:12:53,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 72 [2025-02-06 02:12:53,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:12:53,248 INFO L225 Difference]: With dead ends: 88 [2025-02-06 02:12:53,249 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 02:12:53,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-06 02:12:53,249 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 38 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:12:53,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 57 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:12:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 02:12:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 02:12:53,250 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 02:12:53,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 02:12:53,250 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2025-02-06 02:12:53,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:12:53,250 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 02:12:53,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-06 02:12:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 02:12:53,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 02:12:53,252 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 02:12:53,256 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 02:12:53,456 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 02:12:53,458 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 02:12:53,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 02:12:53,808 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 02:12:53,817 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2025-02-06 02:12:53,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 02:12:53 BoogieIcfgContainer [2025-02-06 02:12:53,819 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 02:12:53,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 02:12:53,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 02:12:53,820 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 02:12:53,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:12:45" (3/4) ... [2025-02-06 02:12:53,821 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 02:12:53,825 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-06 02:12:53,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-06 02:12:53,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 02:12:53,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 02:12:53,827 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 02:12:53,887 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 02:12:53,888 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 02:12:53,888 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 02:12:53,888 INFO L158 Benchmark]: Toolchain (without parser) took 8808.37ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 92.5MB in the beginning and 153.7MB in the end (delta: -61.2MB). Peak memory consumption was 239.9MB. Max. memory is 16.1GB. [2025-02-06 02:12:53,888 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:12:53,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.21ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.1MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:53,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.45ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:53,889 INFO L158 Benchmark]: Boogie Preprocessor took 49.81ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 02:12:53,889 INFO L158 Benchmark]: IcfgBuilder took 264.33ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 64.1MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:53,889 INFO L158 Benchmark]: TraceAbstraction took 8217.88ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 63.6MB in the beginning and 158.0MB in the end (delta: -94.3MB). Peak memory consumption was 206.3MB. Max. memory is 16.1GB. [2025-02-06 02:12:53,889 INFO L158 Benchmark]: Witness Printer took 68.28ms. Allocated memory is still 419.4MB. Free memory was 158.0MB in the beginning and 153.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 02:12:53,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.21ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.1MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.45ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.8MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.81ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 264.33ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 64.1MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8217.88ms. Allocated memory was 117.4MB in the beginning and 419.4MB in the end (delta: 302.0MB). Free memory was 63.6MB in the beginning and 158.0MB in the end (delta: -94.3MB). Peak memory consumption was 206.3MB. Max. memory is 16.1GB. * Witness Printer took 68.28ms. Allocated memory is still 419.4MB. Free memory was 158.0MB in the beginning and 153.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 * 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 372 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 248 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 148 mSDtfsCounter, 248 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 451 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 9 QuantifiedInterpolants, 2070 SizeOfPredicates, 30 NumberOfNonLiveVariables, 481 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 1462/1540 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 - InvariantResult [Line: 73]: Location Invariant Derived location invariant: (var_1_5 >= 1) RESULT: Ultimate proved your program to be correct! [2025-02-06 02:12:53,908 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