./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:15:06,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:15:06,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 15:15:06,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:15:06,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:15:06,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:15:06,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:15:06,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:15:06,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:15:06,251 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:15:06,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:15:06,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:15:06,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:15:06,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:15:06,253 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:15:06,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:15:06,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:15:06,253 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:15:06,253 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 15:15:06,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:15:06,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:15:06,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:15:06,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:15:06,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:15:06,255 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:15:06,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:15:06,256 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c [2025-03-08 15:15:06,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:15:06,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:15:06,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:15:06,485 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:15:06,485 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:15:06,486 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2025-03-08 15:15:07,654 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad2e2335/d2a5804a19a346d2a27e6aec1fd2f9e0/FLAG8b3eb7c26 [2025-03-08 15:15:07,856 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:15:07,856 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2025-03-08 15:15:07,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad2e2335/d2a5804a19a346d2a27e6aec1fd2f9e0/FLAG8b3eb7c26 [2025-03-08 15:15:07,908 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ad2e2335/d2a5804a19a346d2a27e6aec1fd2f9e0 [2025-03-08 15:15:07,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:15:07,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:15:07,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:15:07,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:15:07,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:15:07,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:15:07" (1/1) ... [2025-03-08 15:15:07,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a987b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:07, skipping insertion in model container [2025-03-08 15:15:07,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:15:07" (1/1) ... [2025-03-08 15:15:07,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:15:08,035 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2025-03-08 15:15:08,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:15:08,074 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:15:08,082 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2025-03-08 15:15:08,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:15:08,104 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:15:08,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08 WrapperNode [2025-03-08 15:15:08,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:15:08,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:15:08,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:15:08,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:15:08,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,136 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2025-03-08 15:15:08,138 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:15:08,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:15:08,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:15:08,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:15:08,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,145 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,156 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:15:08,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,162 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:15:08,167 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:15:08,167 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:15:08,167 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:15:08,168 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (1/1) ... [2025-03-08 15:15:08,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:15:08,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:15:08,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:15:08,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:15:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:15:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:15:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:15:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 15:15:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:15:08,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:15:08,252 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:15:08,254 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:15:08,372 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 15:15:08,373 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:15:08,379 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:15:08,379 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:15:08,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:15:08 BoogieIcfgContainer [2025-03-08 15:15:08,380 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:15:08,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:15:08,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:15:08,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:15:08,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:15:07" (1/3) ... [2025-03-08 15:15:08,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e47508c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:15:08, skipping insertion in model container [2025-03-08 15:15:08,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:08" (2/3) ... [2025-03-08 15:15:08,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e47508c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:15:08, skipping insertion in model container [2025-03-08 15:15:08,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:15:08" (3/3) ... [2025-03-08 15:15:08,388 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2025-03-08 15:15:08,399 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:15:08,400 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-25.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:15:08,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:15:08,458 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;@75919b42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:15:08,458 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:15:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:15:08,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:15:08,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:08,469 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:08,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:08,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash -258994915, now seen corresponding path program 1 times [2025-03-08 15:15:08,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:15:08,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799249734] [2025-03-08 15:15:08,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:08,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:15:08,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:15:08,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:15:08,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:08,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-08 15:15:08,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 15:15:08,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799249734] [2025-03-08 15:15:08,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799249734] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 15:15:08,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736808614] [2025-03-08 15:15:08,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:08,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 15:15:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:15:08,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 15:15:08,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 15:15:08,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:15:08,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:15:08,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:08,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:08,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:15:08,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2025-03-08 15:15:08,743 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:15:08,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736808614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:15:08,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:15:08,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 15:15:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932976289] [2025-03-08 15:15:08,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:08,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:15:08,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 15:15:08,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:15:08,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:15:08,764 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:15:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:08,777 INFO L93 Difference]: Finished difference Result 58 states and 87 transitions. [2025-03-08 15:15:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:15:08,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2025-03-08 15:15:08,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:08,783 INFO L225 Difference]: With dead ends: 58 [2025-03-08 15:15:08,783 INFO L226 Difference]: Without dead ends: 29 [2025-03-08 15:15:08,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:15:08,787 INFO L435 NwaCegarLoop]: 38 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, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:08,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:15:08,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-03-08 15:15:08,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-03-08 15:15:08,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:15:08,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2025-03-08 15:15:08,814 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2025-03-08 15:15:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:08,814 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2025-03-08 15:15:08,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:15:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2025-03-08 15:15:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:15:08,816 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:08,816 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:08,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 15:15:09,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 15:15:09,020 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:09,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:09,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1996864929, now seen corresponding path program 1 times [2025-03-08 15:15:09,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 15:15:09,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814319476] [2025-03-08 15:15:09,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:09,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 15:15:09,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:15:09,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:15:09,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:09,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:15:09,067 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 15:15:09,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:15:09,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:15:09,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:09,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 15:15:09,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 15:15:09,110 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 15:15:09,111 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:15:09,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 15:15:09,114 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-08 15:15:09,137 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:15:09,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:15:09 BoogieIcfgContainer [2025-03-08 15:15:09,139 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:15:09,140 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:15:09,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:15:09,140 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:15:09,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:15:08" (3/4) ... [2025-03-08 15:15:09,142 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 15:15:09,143 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:15:09,144 INFO L158 Benchmark]: Toolchain (without parser) took 1231.89ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 71.9MB in the end (delta: 59.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-08 15:15:09,144 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:09,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.58ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 119.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:15:09,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.96ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 118.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:09,144 INFO L158 Benchmark]: Boogie Preprocessor took 28.29ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 117.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:09,144 INFO L158 Benchmark]: IcfgBuilder took 212.82ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 105.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:15:09,144 INFO L158 Benchmark]: TraceAbstraction took 758.07ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 71.9MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 15:15:09,145 INFO L158 Benchmark]: Witness Printer took 3.01ms. Allocated memory is still 167.8MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:09,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.58ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 119.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.96ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 118.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.29ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 117.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 212.82ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 105.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 758.07ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 71.9MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.01ms. Allocated memory is still 167.8MB. Free memory is still 71.9MB. 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 someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.742; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] double var_1_4 = 1.625; [L26] double var_1_5 = 8.25; VAL [isInitial=0, var_1_1=371/500, var_1_2=1, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L65] isInitial = 1 [L66] FCALL initially() [L67] COND TRUE 1 [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L47] var_1_2 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L48] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=371/500, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L49] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L49] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=0, var_1_4=13/8, var_1_5=33/4] [L50] var_1_3 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_4=13/8, var_1_5=33/4] [L51] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_4=13/8, var_1_5=33/4] [L52] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L52] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_4=13/8, var_1_5=33/4] [L53] var_1_4 = __VERIFIER_nondet_double() [L54] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_5=33/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_5=33/4] [L54] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1, var_1_5=33/4] [L55] var_1_5 = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1] [L56] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=371/500, var_1_2=0, var_1_3=1] [L69] RET updateVariables() [L70] CALL step() [L30] COND FALSE !(\read(var_1_2)) [L43] var_1_1 = var_1_5 VAL [isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return var_1_2 ? ((! var_1_3) ? (var_1_3 ? (var_1_1 == ((double) ((((var_1_4) < (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) ? (var_1_4) : (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5)))))))) : 1) : ((var_1_5 <= var_1_4) ? (var_1_1 == ((double) var_1_4)) : (var_1_1 == ((double) 199.5)))) : (var_1_1 == ((double) var_1_5)) ; VAL [\result=0, isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] [L19] reach_error() VAL [isInitial=1, var_1_1=53, var_1_2=0, var_1_3=1, var_1_5=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 49 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 6, 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, 38 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, 38 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 110/120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 15:15:09,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 15:15:10,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 15:15:11,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 15:15:11,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 15:15:11,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 15:15:11,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 15:15:11,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 15:15:11,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 15:15:11,078 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 15:15:11,078 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 15:15:11,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 15:15:11,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 15:15:11,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 15:15:11,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 15:15:11,079 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 15:15:11,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 15:15:11,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 15:15:11,081 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 15:15:11,081 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 15:15:11,081 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 15:15:11,081 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 15:15:11,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 15:15:11,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:15:11,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 15:15:11,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 15:15:11,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 15:15:11,083 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 942fc1721d9d68198092543c6d2644725032e77c472db86e1b213e7c4933ab1c [2025-03-08 15:15:11,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 15:15:11,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 15:15:11,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 15:15:11,318 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 15:15:11,318 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 15:15:11,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2025-03-08 15:15:12,444 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db61de0b8/baac9089869f4877a58712d0c9adf3dc/FLAGdf6c6db80 [2025-03-08 15:15:12,629 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 15:15:12,631 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i [2025-03-08 15:15:12,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db61de0b8/baac9089869f4877a58712d0c9adf3dc/FLAGdf6c6db80 [2025-03-08 15:15:12,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db61de0b8/baac9089869f4877a58712d0c9adf3dc [2025-03-08 15:15:12,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 15:15:12,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 15:15:12,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 15:15:12,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 15:15:12,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 15:15:12,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42825539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12, skipping insertion in model container [2025-03-08 15:15:12,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 15:15:12,789 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2025-03-08 15:15:12,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:15:12,836 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 15:15:12,846 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-25.i[915,928] [2025-03-08 15:15:12,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 15:15:12,867 INFO L204 MainTranslator]: Completed translation [2025-03-08 15:15:12,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12 WrapperNode [2025-03-08 15:15:12,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 15:15:12,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 15:15:12,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 15:15:12,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 15:15:12,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,895 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2025-03-08 15:15:12,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 15:15:12,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 15:15:12,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 15:15:12,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 15:15:12,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,919 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 15:15:12,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,927 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 15:15:12,935 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 15:15:12,938 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 15:15:12,939 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 15:15:12,939 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (1/1) ... [2025-03-08 15:15:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 15:15:12,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 15:15:12,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 15:15:12,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 15:15:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 15:15:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 15:15:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 15:15:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 15:15:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 15:15:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 15:15:13,034 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 15:15:13,037 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 15:15:13,174 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-08 15:15:13,175 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 15:15:13,182 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 15:15:13,182 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 15:15:13,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:15:13 BoogieIcfgContainer [2025-03-08 15:15:13,182 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 15:15:13,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 15:15:13,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 15:15:13,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 15:15:13,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:15:12" (1/3) ... [2025-03-08 15:15:13,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cccd9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:15:13, skipping insertion in model container [2025-03-08 15:15:13,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:15:12" (2/3) ... [2025-03-08 15:15:13,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cccd9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:15:13, skipping insertion in model container [2025-03-08 15:15:13,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:15:13" (3/3) ... [2025-03-08 15:15:13,188 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-25.i [2025-03-08 15:15:13,198 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 15:15:13,201 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-25.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 15:15:13,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 15:15:13,248 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;@1bafb663, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 15:15:13,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 15:15:13,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:15:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:15:13,255 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:13,255 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:13,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:13,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:13,259 INFO L85 PathProgramCache]: Analyzing trace with hash -258994915, now seen corresponding path program 1 times [2025-03-08 15:15:13,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:15:13,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365837675] [2025-03-08 15:15:13,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:13,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:13,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:15:13,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:15:13,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 15:15:13,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:15:13,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:15:13,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:13,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:13,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 15:15:13,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 15:15:13,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:15:13,376 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:15:13,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365837675] [2025-03-08 15:15:13,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365837675] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:15:13,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:15:13,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 15:15:13,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23796032] [2025-03-08 15:15:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:13,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 15:15:13,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:15:13,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 15:15:13,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:15:13,395 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:15:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:13,409 INFO L93 Difference]: Finished difference Result 58 states and 87 transitions. [2025-03-08 15:15:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 15:15:13,411 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2025-03-08 15:15:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:13,415 INFO L225 Difference]: With dead ends: 58 [2025-03-08 15:15:13,416 INFO L226 Difference]: Without dead ends: 29 [2025-03-08 15:15:13,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 15:15:13,421 INFO L435 NwaCegarLoop]: 38 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, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:13,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:15:13,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-03-08 15:15:13,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-03-08 15:15:13,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:15:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2025-03-08 15:15:13,450 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 44 [2025-03-08 15:15:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:13,450 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2025-03-08 15:15:13,450 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, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-08 15:15:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2025-03-08 15:15:13,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 15:15:13,451 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:13,451 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:13,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-08 15:15:13,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:13,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:13,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:13,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1996864929, now seen corresponding path program 1 times [2025-03-08 15:15:13,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:15:13,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753531329] [2025-03-08 15:15:13,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:13,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:13,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:15:13,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:15:13,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 15:15:13,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 15:15:13,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 15:15:13,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:13,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:13,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 15:15:13,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-08 15:15:17,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:15:17,604 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:15:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753531329] [2025-03-08 15:15:17,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753531329] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:15:17,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:15:17,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 15:15:17,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190596531] [2025-03-08 15:15:17,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:17,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 15:15:17,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:15:17,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 15:15:17,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-03-08 15:15:17,606 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:18,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:18,107 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2025-03-08 15:15:18,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 15:15:18,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2025-03-08 15:15:18,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:18,108 INFO L225 Difference]: With dead ends: 43 [2025-03-08 15:15:18,109 INFO L226 Difference]: Without dead ends: 41 [2025-03-08 15:15:18,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2025-03-08 15:15:18,110 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 35 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:18,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 121 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 15:15:18,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-03-08 15:15:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2025-03-08 15:15:18,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-08 15:15:18,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2025-03-08 15:15:18,120 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 44 [2025-03-08 15:15:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:18,120 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2025-03-08 15:15:18,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2025-03-08 15:15:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-08 15:15:18,122 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:18,122 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:18,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-03-08 15:15:18,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:18,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:18,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:18,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1896726812, now seen corresponding path program 1 times [2025-03-08 15:15:18,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:15:18,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814457145] [2025-03-08 15:15:18,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:18,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:18,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:15:18,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:15:18,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-08 15:15:18,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 15:15:18,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 15:15:18,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:18,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:18,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 15:15:18,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:18,396 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-08 15:15:18,396 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:15:18,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:15:18,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814457145] [2025-03-08 15:15:18,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814457145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:15:18,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:15:18,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 15:15:18,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417455497] [2025-03-08 15:15:18,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:18,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 15:15:18,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:15:18,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 15:15:18,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 15:15:18,398 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:18,432 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2025-03-08 15:15:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 15:15:18,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2025-03-08 15:15:18,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:18,436 INFO L225 Difference]: With dead ends: 84 [2025-03-08 15:15:18,436 INFO L226 Difference]: Without dead ends: 51 [2025-03-08 15:15:18,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 15:15:18,437 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:18,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:15:18,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-03-08 15:15:18,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2025-03-08 15:15:18,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 37 states have internal predecessors, (41), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:15:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2025-03-08 15:15:18,446 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 46 [2025-03-08 15:15:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:18,446 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2025-03-08 15:15:18,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2025-03-08 15:15:18,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-08 15:15:18,449 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:18,449 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:18,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-08 15:15:18,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:18,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:18,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1897650333, now seen corresponding path program 1 times [2025-03-08 15:15:18,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:15:18,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42718303] [2025-03-08 15:15:18,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:18,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:18,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:15:18,655 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:15:18,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-08 15:15:18,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 15:15:18,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 15:15:18,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:18,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:18,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 15:15:18,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-08 15:15:19,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:15:19,960 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:15:19,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42718303] [2025-03-08 15:15:19,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42718303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:15:19,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:15:19,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 15:15:19,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53176558] [2025-03-08 15:15:19,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:19,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 15:15:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:15:19,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 15:15:19,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 15:15:19,961 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:20,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:20,025 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2025-03-08 15:15:20,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 15:15:20,026 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2025-03-08 15:15:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:20,027 INFO L225 Difference]: With dead ends: 53 [2025-03-08 15:15:20,027 INFO L226 Difference]: Without dead ends: 51 [2025-03-08 15:15:20,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-08 15:15:20,028 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 24 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:20,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 133 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 15:15:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-03-08 15:15:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2025-03-08 15:15:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:15:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2025-03-08 15:15:20,033 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 46 [2025-03-08 15:15:20,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:20,033 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2025-03-08 15:15:20,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2025-03-08 15:15:20,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-08 15:15:20,034 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:20,034 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:20,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-08 15:15:20,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:20,238 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:20,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:20,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1927203005, now seen corresponding path program 1 times [2025-03-08 15:15:20,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:15:20,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733930915] [2025-03-08 15:15:20,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:20,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:20,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:15:20,242 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:15:20,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-03-08 15:15:20,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 15:15:20,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 15:15:20,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:20,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:20,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-08 15:15:20,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-08 15:15:21,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 15:15:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-08 15:15:22,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:15:22,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733930915] [2025-03-08 15:15:22,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733930915] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-08 15:15:22,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 15:15:22,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2025-03-08 15:15:22,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159613868] [2025-03-08 15:15:22,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:22,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 15:15:22,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:15:22,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 15:15:22,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2025-03-08 15:15:22,953 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:24,118 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2025-03-08 15:15:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 15:15:24,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2025-03-08 15:15:24,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:24,120 INFO L225 Difference]: With dead ends: 61 [2025-03-08 15:15:24,120 INFO L226 Difference]: Without dead ends: 59 [2025-03-08 15:15:24,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2025-03-08 15:15:24,120 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 21 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:24,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 145 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 15:15:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2025-03-08 15:15:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2025-03-08 15:15:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 15:15:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2025-03-08 15:15:24,124 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 46 [2025-03-08 15:15:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:24,125 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2025-03-08 15:15:24,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2025-03-08 15:15:24,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-08 15:15:24,125 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 15:15:24,125 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 15:15:24,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2025-03-08 15:15:24,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:24,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 15:15:24,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 15:15:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1928126526, now seen corresponding path program 1 times [2025-03-08 15:15:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 15:15:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776156235] [2025-03-08 15:15:24,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 15:15:24,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:24,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 15:15:24,329 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 15:15:24,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2025-03-08 15:15:24,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 15:15:24,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 15:15:24,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 15:15:24,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 15:15:24,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 15:15:24,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 15:15:24,987 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-08 15:15:24,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 15:15:24,987 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 15:15:24,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776156235] [2025-03-08 15:15:24,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776156235] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 15:15:24,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 15:15:24,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 15:15:24,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562958243] [2025-03-08 15:15:24,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 15:15:24,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 15:15:24,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 15:15:24,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 15:15:24,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 15:15:24,988 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:25,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 15:15:25,141 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2025-03-08 15:15:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 15:15:25,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2025-03-08 15:15:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 15:15:25,142 INFO L225 Difference]: With dead ends: 57 [2025-03-08 15:15:25,142 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 15:15:25,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-08 15:15:25,143 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 21 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 15:15:25,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 155 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 15:15:25,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 15:15:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 15:15:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 15:15:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 15:15:25,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2025-03-08 15:15:25,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 15:15:25,144 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 15:15:25,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-08 15:15:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 15:15:25,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 15:15:25,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 15:15:25,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2025-03-08 15:15:25,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 15:15:25,349 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-08 15:15:25,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 15:15:26,452 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 15:15:26,459 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:15:26,460 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:15:26,460 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:15:26,460 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:15:26,461 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 15:15:26,461 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 15:15:26,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:15:26 BoogieIcfgContainer [2025-03-08 15:15:26,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 15:15:26,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 15:15:26,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 15:15:26,462 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 15:15:26,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:15:13" (3/4) ... [2025-03-08 15:15:26,464 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 15:15:26,467 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 15:15:26,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-03-08 15:15:26,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-08 15:15:26,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 15:15:26,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 15:15:26,528 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 15:15:26,529 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 15:15:26,529 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 15:15:26,530 INFO L158 Benchmark]: Toolchain (without parser) took 13873.63ms. Allocated memory was 83.9MB in the beginning and 478.2MB in the end (delta: 394.3MB). Free memory was 59.2MB in the beginning and 180.8MB in the end (delta: -121.6MB). Peak memory consumption was 267.6MB. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.52ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 46.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.07ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: Boogie Preprocessor took 37.41ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: IcfgBuilder took 247.23ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 54.6MB in the end (delta: -10.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: TraceAbstraction took 13277.42ms. Allocated memory was 83.9MB in the beginning and 478.2MB in the end (delta: 394.3MB). Free memory was 54.1MB in the beginning and 184.9MB in the end (delta: -130.8MB). Peak memory consumption was 265.0MB. Max. memory is 16.1GB. [2025-03-08 15:15:26,531 INFO L158 Benchmark]: Witness Printer took 67.47ms. Allocated memory is still 478.2MB. Free memory was 184.9MB in the beginning and 180.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 15:15:26,532 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.52ms. Allocated memory is still 83.9MB. Free memory was 59.1MB in the beginning and 46.9MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.07ms. Allocated memory is still 83.9MB. Free memory was 46.9MB in the beginning and 45.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.41ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 247.23ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 54.6MB in the end (delta: -10.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13277.42ms. Allocated memory was 83.9MB in the beginning and 478.2MB in the end (delta: 394.3MB). Free memory was 54.1MB in the beginning and 184.9MB in the end (delta: -130.8MB). Peak memory consumption was 265.0MB. Max. memory is 16.1GB. * Witness Printer took 67.47ms. Allocated memory is still 478.2MB. Free memory was 184.9MB in the beginning and 180.8MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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, 32 locations, 49 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 6, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 658 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 434 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 224 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, InterpolantAutomatonStates: 36, 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, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 311 ConstructedInterpolants, 2 QuantifiedInterpolants, 1155 SizeOfPredicates, 26 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 417/420 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 15:15:26,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE