./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 22:07:04,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 22:07:04,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 22:07:04,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 22:07:04,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 22:07:04,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 22:07:04,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 22:07:04,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 22:07:04,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 22:07:04,728 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 22:07:04,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 22:07:04,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 22:07:04,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 22:07:04,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 22:07:04,729 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 22:07:04,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 22:07:04,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 22:07:04,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 22:07:04,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 22:07:04,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 22:07:04,730 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 22:07:04,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 22:07:04,731 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 22:07:04,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 22:07:04,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 22:07:04,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 22:07:04,732 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 22:07:04,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 22:07:04,732 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 [2025-02-07 22:07:05,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 22:07:05,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 22:07:05,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 22:07:05,028 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 22:07:05,028 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 22:07:05,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-02-07 22:07:06,282 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03940651f/56f6b7f52e9f4495bc077e12e45750b7/FLAGa0a1f04b0 [2025-02-07 22:07:06,673 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 22:07:06,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-02-07 22:07:06,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03940651f/56f6b7f52e9f4495bc077e12e45750b7/FLAGa0a1f04b0 [2025-02-07 22:07:06,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/03940651f/56f6b7f52e9f4495bc077e12e45750b7 [2025-02-07 22:07:06,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 22:07:06,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 22:07:06,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 22:07:06,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 22:07:06,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 22:07:06,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 10:07:06" (1/1) ... [2025-02-07 22:07:06,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e35d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:06, skipping insertion in model container [2025-02-07 22:07:06,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 10:07:06" (1/1) ... [2025-02-07 22:07:06,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 22:07:07,050 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1175,1188] [2025-02-07 22:07:07,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 22:07:07,367 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 22:07:07,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1175,1188] [2025-02-07 22:07:07,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 22:07:07,575 INFO L204 MainTranslator]: Completed translation [2025-02-07 22:07:07,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07 WrapperNode [2025-02-07 22:07:07,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 22:07:07,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 22:07:07,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 22:07:07,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 22:07:07,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:07,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,297 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6358 [2025-02-07 22:07:08,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 22:07:08,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 22:07:08,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 22:07:08,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 22:07:08,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,509 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,622 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 22:07:08,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,773 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 22:07:08,931 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 22:07:08,932 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 22:07:08,932 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 22:07:08,933 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (1/1) ... [2025-02-07 22:07:08,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 22:07:08,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 22:07:08,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 22:07:08,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 22:07:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 22:07:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 22:07:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 22:07:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 22:07:09,364 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 22:07:09,366 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 22:07:16,674 INFO L? ?]: Removed 3508 outVars from TransFormulas that were not future-live. [2025-02-07 22:07:16,674 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 22:07:16,914 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 22:07:16,914 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 22:07:16,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:07:16 BoogieIcfgContainer [2025-02-07 22:07:16,919 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 22:07:16,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 22:07:16,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 22:07:16,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 22:07:16,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 10:07:06" (1/3) ... [2025-02-07 22:07:16,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207e250a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 10:07:16, skipping insertion in model container [2025-02-07 22:07:16,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:07" (2/3) ... [2025-02-07 22:07:16,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207e250a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 10:07:16, skipping insertion in model container [2025-02-07 22:07:16,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:07:16" (3/3) ... [2025-02-07 22:07:16,929 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-02-07 22:07:16,945 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 22:07:16,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c that has 1 procedures, 2218 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 22:07:17,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 22:07:17,066 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;@7d92a66e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 22:07:17,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 22:07:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 2218 states, 2216 states have (on average 1.5040613718411553) internal successors, (3333), 2217 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-07 22:07:17,091 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:17,091 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:17,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:17,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1446837146, now seen corresponding path program 1 times [2025-02-07 22:07:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:17,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227795269] [2025-02-07 22:07:17,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:17,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:17,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-07 22:07:17,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-07 22:07:17,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:17,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:18,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:18,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 22:07:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227795269] [2025-02-07 22:07:18,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227795269] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:18,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:18,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 22:07:18,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623233988] [2025-02-07 22:07:18,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:18,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 22:07:18,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 22:07:18,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 22:07:18,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:18,162 INFO L87 Difference]: Start difference. First operand has 2218 states, 2216 states have (on average 1.5040613718411553) internal successors, (3333), 2217 states have internal predecessors, (3333), 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) Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:19,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:19,540 INFO L93 Difference]: Finished difference Result 4315 states and 6487 transitions. [2025-02-07 22:07:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 22:07:19,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) Word has length 98 [2025-02-07 22:07:19,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:19,572 INFO L225 Difference]: With dead ends: 4315 [2025-02-07 22:07:19,572 INFO L226 Difference]: Without dead ends: 2218 [2025-02-07 22:07:19,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:19,588 INFO L435 NwaCegarLoop]: 2780 mSDtfsCounter, 0 mSDsluCounter, 5555 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8335 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:19,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8335 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-07 22:07:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2025-02-07 22:07:19,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2218. [2025-02-07 22:07:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2218 states, 2217 states have (on average 1.5029318899413622) internal successors, (3332), 2217 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:19,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2218 states to 2218 states and 3332 transitions. [2025-02-07 22:07:19,733 INFO L78 Accepts]: Start accepts. Automaton has 2218 states and 3332 transitions. Word has length 98 [2025-02-07 22:07:19,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:19,734 INFO L471 AbstractCegarLoop]: Abstraction has 2218 states and 3332 transitions. [2025-02-07 22:07:19,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:19,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2218 states and 3332 transitions. [2025-02-07 22:07:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-02-07 22:07:19,738 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:19,738 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:19,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 22:07:19,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:19,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:19,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1906961252, now seen corresponding path program 1 times [2025-02-07 22:07:19,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:19,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842476932] [2025-02-07 22:07:19,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:19,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:19,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-07 22:07:19,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-07 22:07:19,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:19,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 22:07:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842476932] [2025-02-07 22:07:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842476932] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:20,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 22:07:20,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968534195] [2025-02-07 22:07:20,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:20,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 22:07:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 22:07:20,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 22:07:20,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:20,090 INFO L87 Difference]: Start difference. First operand 2218 states and 3332 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:21,200 INFO L93 Difference]: Finished difference Result 4317 states and 6486 transitions. [2025-02-07 22:07:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 22:07:21,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) Word has length 99 [2025-02-07 22:07:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:21,212 INFO L225 Difference]: With dead ends: 4317 [2025-02-07 22:07:21,212 INFO L226 Difference]: Without dead ends: 2220 [2025-02-07 22:07:21,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:21,219 INFO L435 NwaCegarLoop]: 2780 mSDtfsCounter, 0 mSDsluCounter, 5552 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8332 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:21,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8332 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 22:07:21,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2025-02-07 22:07:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2220. [2025-02-07 22:07:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2220 states, 2219 states have (on average 1.5024785939612437) internal successors, (3334), 2219 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2220 states to 2220 states and 3334 transitions. [2025-02-07 22:07:21,279 INFO L78 Accepts]: Start accepts. Automaton has 2220 states and 3334 transitions. Word has length 99 [2025-02-07 22:07:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:21,279 INFO L471 AbstractCegarLoop]: Abstraction has 2220 states and 3334 transitions. [2025-02-07 22:07:21,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2220 states and 3334 transitions. [2025-02-07 22:07:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-02-07 22:07:21,284 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:21,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:21,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 22:07:21,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:21,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash 917769429, now seen corresponding path program 1 times [2025-02-07 22:07:21,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:21,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329463353] [2025-02-07 22:07:21,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:21,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-07 22:07:21,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-07 22:07:21,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:21,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:21,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 22:07:21,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329463353] [2025-02-07 22:07:21,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329463353] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:21,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:21,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 22:07:21,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756270065] [2025-02-07 22:07:21,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:21,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 22:07:21,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 22:07:21,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 22:07:21,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:21,644 INFO L87 Difference]: Start difference. First operand 2220 states and 3334 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:22,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:22,745 INFO L93 Difference]: Finished difference Result 4321 states and 6490 transitions. [2025-02-07 22:07:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 22:07:22,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) Word has length 100 [2025-02-07 22:07:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:22,757 INFO L225 Difference]: With dead ends: 4321 [2025-02-07 22:07:22,758 INFO L226 Difference]: Without dead ends: 2222 [2025-02-07 22:07:22,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:22,764 INFO L435 NwaCegarLoop]: 2780 mSDtfsCounter, 0 mSDsluCounter, 5547 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8327 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:22,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8327 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 22:07:22,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2025-02-07 22:07:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2222. [2025-02-07 22:07:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 2221 states have (on average 1.5020261143628997) internal successors, (3336), 2221 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:22,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3336 transitions. [2025-02-07 22:07:22,819 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3336 transitions. Word has length 100 [2025-02-07 22:07:22,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:22,820 INFO L471 AbstractCegarLoop]: Abstraction has 2222 states and 3336 transitions. [2025-02-07 22:07:22,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3336 transitions. [2025-02-07 22:07:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-02-07 22:07:22,823 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:22,824 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:22,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 22:07:22,824 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:22,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash 274447273, now seen corresponding path program 1 times [2025-02-07 22:07:22,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:22,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655653728] [2025-02-07 22:07:22,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:22,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:22,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-07 22:07:22,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-07 22:07:22,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:22,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:23,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:23,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 22:07:23,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655653728] [2025-02-07 22:07:23,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655653728] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:23,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:23,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 22:07:23,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812173695] [2025-02-07 22:07:23,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:23,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 22:07:23,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 22:07:23,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 22:07:23,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:23,092 INFO L87 Difference]: Start difference. First operand 2222 states and 3336 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:24,158 INFO L93 Difference]: Finished difference Result 4331 states and 6502 transitions. [2025-02-07 22:07:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 22:07:24,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) Word has length 101 [2025-02-07 22:07:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:24,168 INFO L225 Difference]: With dead ends: 4331 [2025-02-07 22:07:24,168 INFO L226 Difference]: Without dead ends: 2230 [2025-02-07 22:07:24,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:24,174 INFO L435 NwaCegarLoop]: 2780 mSDtfsCounter, 3 mSDsluCounter, 5547 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8327 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:24,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8327 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-07 22:07:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2025-02-07 22:07:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2226. [2025-02-07 22:07:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 2225 states have (on average 1.5020224719101123) internal successors, (3342), 2225 states have internal predecessors, (3342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 3342 transitions. [2025-02-07 22:07:24,225 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 3342 transitions. Word has length 101 [2025-02-07 22:07:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:24,226 INFO L471 AbstractCegarLoop]: Abstraction has 2226 states and 3342 transitions. [2025-02-07 22:07:24,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 3342 transitions. [2025-02-07 22:07:24,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-07 22:07:24,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:24,228 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:24,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 22:07:24,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:24,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash 617731856, now seen corresponding path program 1 times [2025-02-07 22:07:24,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640845243] [2025-02-07 22:07:24,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:24,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-07 22:07:24,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-07 22:07:24,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:24,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:25,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:25,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 22:07:25,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640845243] [2025-02-07 22:07:25,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640845243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:25,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:25,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 22:07:25,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105605058] [2025-02-07 22:07:25,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:25,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 22:07:25,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 22:07:25,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 22:07:25,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-07 22:07:25,009 INFO L87 Difference]: Start difference. First operand 2226 states and 3342 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:28,294 INFO L93 Difference]: Finished difference Result 4343 states and 6521 transitions. [2025-02-07 22:07:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 22:07:28,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 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) Word has length 102 [2025-02-07 22:07:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:28,305 INFO L225 Difference]: With dead ends: 4343 [2025-02-07 22:07:28,306 INFO L226 Difference]: Without dead ends: 2238 [2025-02-07 22:07:28,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-07 22:07:28,311 INFO L435 NwaCegarLoop]: 2150 mSDtfsCounter, 3257 mSDsluCounter, 6438 mSDsCounter, 0 mSdLazyCounter, 4731 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 8588 SdHoareTripleChecker+Invalid, 4732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:28,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3257 Valid, 8588 Invalid, 4732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4731 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-07 22:07:28,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2025-02-07 22:07:28,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2236. [2025-02-07 22:07:28,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2235 states have (on average 1.5006711409395974) internal successors, (3354), 2235 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3354 transitions. [2025-02-07 22:07:28,359 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3354 transitions. Word has length 102 [2025-02-07 22:07:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:28,359 INFO L471 AbstractCegarLoop]: Abstraction has 2236 states and 3354 transitions. [2025-02-07 22:07:28,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3354 transitions. [2025-02-07 22:07:28,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-02-07 22:07:28,361 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:28,361 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:28,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 22:07:28,361 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:28,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1160064570, now seen corresponding path program 1 times [2025-02-07 22:07:28,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:28,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44891317] [2025-02-07 22:07:28,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:28,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-02-07 22:07:28,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-02-07 22:07:28,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:28,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:28,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 22:07:28,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44891317] [2025-02-07 22:07:28,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44891317] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:28,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:28,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 22:07:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137316462] [2025-02-07 22:07:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:28,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 22:07:28,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 22:07:28,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 22:07:28,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-07 22:07:28,790 INFO L87 Difference]: Start difference. First operand 2236 states and 3354 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:31,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:31,556 INFO L93 Difference]: Finished difference Result 6447 states and 9673 transitions. [2025-02-07 22:07:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 22:07:31,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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) Word has length 103 [2025-02-07 22:07:31,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:31,570 INFO L225 Difference]: With dead ends: 6447 [2025-02-07 22:07:31,571 INFO L226 Difference]: Without dead ends: 4332 [2025-02-07 22:07:31,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-07 22:07:31,576 INFO L435 NwaCegarLoop]: 2169 mSDtfsCounter, 3223 mSDsluCounter, 6402 mSDsCounter, 0 mSdLazyCounter, 4568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3223 SdHoareTripleChecker+Valid, 8571 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:31,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3223 Valid, 8571 Invalid, 4569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4568 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-02-07 22:07:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2025-02-07 22:07:31,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 2294. [2025-02-07 22:07:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2294 states, 2293 states have (on average 1.4993458351504578) internal successors, (3438), 2293 states have internal predecessors, (3438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 3438 transitions. [2025-02-07 22:07:31,637 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 3438 transitions. Word has length 103 [2025-02-07 22:07:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:31,638 INFO L471 AbstractCegarLoop]: Abstraction has 2294 states and 3438 transitions. [2025-02-07 22:07:31,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 3438 transitions. [2025-02-07 22:07:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-02-07 22:07:31,639 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:31,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:31,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 22:07:31,639 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:31,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:31,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1241039329, now seen corresponding path program 1 times [2025-02-07 22:07:31,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 22:07:31,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255855254] [2025-02-07 22:07:31,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:31,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 22:07:31,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-02-07 22:07:31,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-02-07 22:07:31,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:31,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 22:07:31,715 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 22:07:31,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-02-07 22:07:31,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-02-07 22:07:31,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:31,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 22:07:31,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 22:07:31,947 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 22:07:31,948 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 22:07:31,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-07 22:07:31,953 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-07 22:07:32,023 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-02-07 22:07:32,048 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 22:07:32,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 10:07:32 BoogieIcfgContainer [2025-02-07 22:07:32,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 22:07:32,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 22:07:32,056 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 22:07:32,056 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 22:07:32,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:07:16" (3/4) ... [2025-02-07 22:07:32,059 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 22:07:32,059 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 22:07:32,061 INFO L158 Benchmark]: Toolchain (without parser) took 25213.54ms. Allocated memory was 142.6MB in the beginning and 587.2MB in the end (delta: 444.6MB). Free memory was 108.7MB in the beginning and 386.7MB in the end (delta: -278.0MB). Peak memory consumption was 173.1MB. Max. memory is 16.1GB. [2025-02-07 22:07:32,061 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory was 123.3MB in the beginning and 123.0MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 22:07:32,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.28ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 80.5MB in the end (delta: 28.2MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. [2025-02-07 22:07:32,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 719.97ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 80.5MB in the beginning and 229.8MB in the end (delta: -149.4MB). Peak memory consumption was 103.8MB. Max. memory is 16.1GB. [2025-02-07 22:07:32,062 INFO L158 Benchmark]: Boogie Preprocessor took 632.13ms. Allocated memory is still 394.3MB. Free memory was 229.8MB in the beginning and 186.7MB in the end (delta: 43.1MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2025-02-07 22:07:32,062 INFO L158 Benchmark]: IcfgBuilder took 7987.78ms. Allocated memory was 394.3MB in the beginning and 788.5MB in the end (delta: 394.3MB). Free memory was 186.7MB in the beginning and 206.2MB in the end (delta: -19.4MB). Peak memory consumption was 467.9MB. Max. memory is 16.1GB. [2025-02-07 22:07:32,062 INFO L158 Benchmark]: TraceAbstraction took 15133.36ms. Allocated memory was 788.5MB in the beginning and 587.2MB in the end (delta: -201.3MB). Free memory was 206.2MB in the beginning and 386.8MB in the end (delta: -180.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 22:07:32,062 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 587.2MB. Free memory was 386.8MB in the beginning and 386.7MB in the end (delta: 31.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 22:07:32,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory was 123.3MB in the beginning and 123.0MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.28ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 80.5MB in the end (delta: 28.2MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 719.97ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 80.5MB in the beginning and 229.8MB in the end (delta: -149.4MB). Peak memory consumption was 103.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 632.13ms. Allocated memory is still 394.3MB. Free memory was 229.8MB in the beginning and 186.7MB in the end (delta: 43.1MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * IcfgBuilder took 7987.78ms. Allocated memory was 394.3MB in the beginning and 788.5MB in the end (delta: 394.3MB). Free memory was 186.7MB in the beginning and 206.2MB in the end (delta: -19.4MB). Peak memory consumption was 467.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15133.36ms. Allocated memory was 788.5MB in the beginning and 587.2MB in the end (delta: -201.3MB). Free memory was 206.2MB in the beginning and 386.8MB in the end (delta: -180.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 587.2MB. Free memory was 386.8MB in the beginning and 386.7MB in the end (delta: 31.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: 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 bitwiseAnd at line 239, overapproximation of bitwiseAnd at line 237. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_24 = 0; [L40] const SORT_4 var_67 = 1; [L41] const SORT_4 var_68 = 0; [L42] const SORT_2 var_79 = 1; [L43] const SORT_3 var_81 = 0; [L44] const SORT_4 var_84 = 4; [L45] const SORT_2 var_88 = 0; [L46] const SORT_4 var_155 = 2; [L47] const SORT_2 var_158 = 2; [L48] const SORT_4 var_182 = 3; [L49] const SORT_2 var_185 = 3; [L51] SORT_1 input_80; [L52] SORT_1 input_90; [L53] SORT_1 input_92; [L54] SORT_1 input_99; [L55] SORT_1 input_101; [L56] SORT_1 input_108; [L57] SORT_1 input_110; [L58] SORT_1 input_117; [L59] SORT_1 input_209; [L60] SORT_1 input_213; [L61] SORT_1 input_216; [L62] SORT_1 input_217; [L63] SORT_1 input_218; [L64] SORT_1 input_219; [L65] SORT_1 input_220; [L66] SORT_1 input_221; [L67] SORT_1 input_231; [L68] SORT_1 input_237; [L69] SORT_1 input_243; [L70] SORT_1 input_249; [L71] SORT_1 input_264; [L72] SORT_1 input_282; [L73] SORT_1 input_300; [L74] SORT_1 input_318; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L76] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L77] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L78] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L79] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L80] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L81] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L82] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L83] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L84] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L85] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L86] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L87] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L88] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L89] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L90] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L91] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L92] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L93] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L94] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L95] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L96] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L97] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L98] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L99] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L100] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L101] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L102] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L103] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L104] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L105] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_2 init_7_arg_1 = var_5; [L108] state_6 = init_7_arg_1 [L109] SORT_2 init_9_arg_1 = var_5; [L110] state_8 = init_9_arg_1 [L111] SORT_2 init_11_arg_1 = var_5; [L112] state_10 = init_11_arg_1 [L113] SORT_2 init_13_arg_1 = var_5; [L114] state_12 = init_13_arg_1 [L115] SORT_2 init_15_arg_1 = var_5; [L116] state_14 = init_15_arg_1 [L117] SORT_2 init_17_arg_1 = var_5; [L118] state_16 = init_17_arg_1 [L119] SORT_2 init_19_arg_1 = var_5; [L120] state_18 = init_19_arg_1 [L121] SORT_2 init_21_arg_1 = var_5; [L122] state_20 = init_21_arg_1 [L123] SORT_2 init_23_arg_1 = var_5; [L124] state_22 = init_23_arg_1 [L125] SORT_1 init_26_arg_1 = var_24; [L126] state_25 = init_26_arg_1 [L127] SORT_1 init_28_arg_1 = var_24; [L128] state_27 = init_28_arg_1 [L129] SORT_1 init_30_arg_1 = var_24; [L130] state_29 = init_30_arg_1 [L131] SORT_1 init_32_arg_1 = var_24; [L132] state_31 = init_32_arg_1 [L133] SORT_1 init_34_arg_1 = var_24; [L134] state_33 = init_34_arg_1 [L135] SORT_1 init_36_arg_1 = var_24; [L136] state_35 = init_36_arg_1 [L137] SORT_1 init_38_arg_1 = var_24; [L138] state_37 = init_38_arg_1 [L139] SORT_1 init_40_arg_1 = var_24; [L140] state_39 = init_40_arg_1 [L141] SORT_1 init_42_arg_1 = var_24; [L142] state_41 = init_42_arg_1 [L143] SORT_1 init_44_arg_1 = var_24; [L144] state_43 = init_44_arg_1 [L145] SORT_1 init_46_arg_1 = var_24; [L146] state_45 = init_46_arg_1 [L147] SORT_1 init_48_arg_1 = var_24; [L148] state_47 = init_48_arg_1 [L149] SORT_1 init_50_arg_1 = var_24; [L150] state_49 = init_50_arg_1 [L151] SORT_1 init_52_arg_1 = var_24; [L152] state_51 = init_52_arg_1 [L153] SORT_1 init_54_arg_1 = var_24; [L154] state_53 = init_54_arg_1 [L155] SORT_1 init_56_arg_1 = var_24; [L156] state_55 = init_56_arg_1 [L157] SORT_1 init_58_arg_1 = var_24; [L158] state_57 = init_58_arg_1 [L159] SORT_1 init_60_arg_1 = var_24; [L160] state_59 = init_60_arg_1 [L161] SORT_1 init_62_arg_1 = var_24; [L162] state_61 = init_62_arg_1 [L163] SORT_1 init_64_arg_1 = var_24; [L164] state_63 = init_64_arg_1 [L165] SORT_1 init_66_arg_1 = var_24; [L166] state_65 = init_66_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L169] input_80 = __VERIFIER_nondet_uchar() [L170] input_90 = __VERIFIER_nondet_uchar() [L171] input_92 = __VERIFIER_nondet_uchar() [L172] input_99 = __VERIFIER_nondet_uchar() [L173] input_101 = __VERIFIER_nondet_uchar() [L174] input_108 = __VERIFIER_nondet_uchar() [L175] input_110 = __VERIFIER_nondet_uchar() [L176] input_117 = __VERIFIER_nondet_uchar() [L177] input_209 = __VERIFIER_nondet_uchar() [L178] EXPR input_209 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L178] input_209 = input_209 & mask_SORT_1 [L179] input_213 = __VERIFIER_nondet_uchar() [L180] EXPR input_213 & mask_SORT_1 VAL [input_209=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L180] input_213 = input_213 & mask_SORT_1 [L181] input_216 = __VERIFIER_nondet_uchar() [L182] EXPR input_216 & mask_SORT_1 VAL [input_209=0, input_213=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L182] input_216 = input_216 & mask_SORT_1 [L183] input_217 = __VERIFIER_nondet_uchar() [L184] EXPR input_217 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L184] input_217 = input_217 & mask_SORT_1 [L185] input_218 = __VERIFIER_nondet_uchar() [L186] EXPR input_218 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L186] input_218 = input_218 & mask_SORT_1 [L187] input_219 = __VERIFIER_nondet_uchar() [L188] EXPR input_219 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L188] input_219 = input_219 & mask_SORT_1 [L189] input_220 = __VERIFIER_nondet_uchar() [L190] EXPR input_220 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L190] input_220 = input_220 & mask_SORT_1 [L191] input_221 = __VERIFIER_nondet_uchar() [L192] EXPR input_221 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L192] input_221 = input_221 & mask_SORT_1 [L193] input_231 = __VERIFIER_nondet_uchar() [L194] EXPR input_231 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L194] input_231 = input_231 & mask_SORT_1 [L195] input_237 = __VERIFIER_nondet_uchar() [L196] EXPR input_237 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L196] input_237 = input_237 & mask_SORT_1 [L197] input_243 = __VERIFIER_nondet_uchar() [L198] EXPR input_243 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L198] input_243 = input_243 & mask_SORT_1 [L199] input_249 = __VERIFIER_nondet_uchar() [L200] EXPR input_249 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L200] input_249 = input_249 & mask_SORT_1 [L201] input_264 = __VERIFIER_nondet_uchar() [L202] input_282 = __VERIFIER_nondet_uchar() [L203] input_300 = __VERIFIER_nondet_uchar() [L204] input_318 = __VERIFIER_nondet_uchar() [L207] SORT_1 var_69_arg_0 = state_33; [L208] SORT_4 var_69_arg_1 = var_67; [L209] SORT_4 var_69_arg_2 = var_68; [L210] SORT_4 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L211] SORT_1 var_70_arg_0 = state_43; [L212] SORT_4 var_70_arg_1 = var_67; [L213] SORT_4 var_70_arg_2 = var_68; [L214] SORT_4 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L215] SORT_4 var_71_arg_0 = var_69; [L216] SORT_4 var_71_arg_1 = var_70; [L217] SORT_4 var_71 = var_71_arg_0 + var_71_arg_1; [L218] SORT_1 var_72_arg_0 = state_53; [L219] SORT_4 var_72_arg_1 = var_67; [L220] SORT_4 var_72_arg_2 = var_68; [L221] SORT_4 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L222] SORT_4 var_73_arg_0 = var_71; [L223] SORT_4 var_73_arg_1 = var_72; [L224] SORT_4 var_73 = var_73_arg_0 + var_73_arg_1; [L225] SORT_1 var_74_arg_0 = state_63; [L226] SORT_4 var_74_arg_1 = var_67; [L227] SORT_4 var_74_arg_2 = var_68; [L228] SORT_4 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L229] SORT_4 var_75_arg_0 = var_73; [L230] SORT_4 var_75_arg_1 = var_74; [L231] SORT_4 var_75 = var_75_arg_0 + var_75_arg_1; VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_75=0, var_79=1, var_81=0, var_84=4, var_88=0] [L232] EXPR var_75 & mask_SORT_4 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L232] var_75 = var_75 & mask_SORT_4 [L233] SORT_4 var_76_arg_0 = var_75; [L234] SORT_4 var_76_arg_1 = var_67; [L235] SORT_1 var_76 = var_76_arg_0 <= var_76_arg_1; [L236] SORT_1 var_77_arg_0 = ~state_65; VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_76=1, var_77_arg_0=-1, var_79=1, var_81=0, var_84=4, var_88=0] [L237] EXPR var_77_arg_0 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_76=1, var_79=1, var_81=0, var_84=4, var_88=0] [L237] var_77_arg_0 = var_77_arg_0 & mask_SORT_1 [L238] SORT_1 var_77_arg_1 = ~var_76; VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_77_arg_0=1, var_77_arg_1=-2, var_79=1, var_81=0, var_84=4, var_88=0] [L239] EXPR var_77_arg_1 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_77_arg_0=1, var_79=1, var_81=0, var_84=4, var_88=0] [L239] var_77_arg_1 = var_77_arg_1 & mask_SORT_1 [L240] EXPR var_77_arg_0 & var_77_arg_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L240] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L241] EXPR var_77 & mask_SORT_1 VAL [input_209=0, input_213=0, input_216=0, input_217=0, input_218=0, input_219=0, input_220=0, input_221=0, input_231=0, input_237=0, input_243=0, input_249=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_6=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L241] var_77 = var_77 & mask_SORT_1 [L242] SORT_1 bad_78_arg_0 = var_77; [L243] CALL __VERIFIER_assert(!(bad_78_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2218 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6483 SdHoareTripleChecker+Valid, 10.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6483 mSDsluCounter, 50480 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35041 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15934 IncrementalHoareTripleChecker+Invalid, 15936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15439 mSDtfsCounter, 15934 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2294occurred in iteration=6, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 2044 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 707 NumberOfCodeBlocks, 707 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 597 ConstructedInterpolants, 0 QuantifiedInterpolants, 1717 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 22:07:32,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 22:07:34,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 22:07:34,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-02-07 22:07:34,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 22:07:34,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 22:07:34,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 22:07:34,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 22:07:34,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 22:07:34,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 22:07:34,530 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 22:07:34,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 22:07:34,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 22:07:34,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 22:07:34,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 22:07:34,531 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 22:07:34,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 22:07:34,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 22:07:34,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 22:07:34,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 22:07:34,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 22:07:34,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 22:07:34,533 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 22:07:34,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 22:07:34,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 22:07:34,534 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabdf7e4bea5ef7f4041734b3a2f250c3105df8bde0bca39b57a9665da865e25 [2025-02-07 22:07:34,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 22:07:34,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 22:07:34,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 22:07:34,831 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 22:07:34,831 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 22:07:34,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-02-07 22:07:36,157 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae70e1c18/6116a47ffd3d484d8ad9545cdb972229/FLAGdc0d9ca19 [2025-02-07 22:07:36,561 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 22:07:36,568 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-02-07 22:07:36,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae70e1c18/6116a47ffd3d484d8ad9545cdb972229/FLAGdc0d9ca19 [2025-02-07 22:07:36,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae70e1c18/6116a47ffd3d484d8ad9545cdb972229 [2025-02-07 22:07:36,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 22:07:36,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 22:07:36,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 22:07:36,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 22:07:36,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 22:07:36,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 10:07:36" (1/1) ... [2025-02-07 22:07:36,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d9aa139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:36, skipping insertion in model container [2025-02-07 22:07:36,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 10:07:36" (1/1) ... [2025-02-07 22:07:36,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 22:07:36,832 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1175,1188] [2025-02-07 22:07:37,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 22:07:37,127 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 22:07:37,134 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1175,1188] [2025-02-07 22:07:37,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 22:07:37,247 INFO L204 MainTranslator]: Completed translation [2025-02-07 22:07:37,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37 WrapperNode [2025-02-07 22:07:37,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 22:07:37,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 22:07:37,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 22:07:37,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 22:07:37,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,412 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1906 [2025-02-07 22:07:37,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 22:07:37,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 22:07:37,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 22:07:37,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 22:07:37,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,495 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-07 22:07:37,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,541 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 22:07:37,584 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 22:07:37,585 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 22:07:37,585 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 22:07:37,586 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (1/1) ... [2025-02-07 22:07:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 22:07:37,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 22:07:37,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 22:07:37,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 22:07:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 22:07:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 22:07:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 22:07:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 22:07:38,025 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 22:07:38,027 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 22:07:40,633 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2025-02-07 22:07:40,633 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 22:07:40,641 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 22:07:40,641 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 22:07:40,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:07:40 BoogieIcfgContainer [2025-02-07 22:07:40,642 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 22:07:40,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 22:07:40,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 22:07:40,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 22:07:40,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 10:07:36" (1/3) ... [2025-02-07 22:07:40,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab8961c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 10:07:40, skipping insertion in model container [2025-02-07 22:07:40,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 10:07:37" (2/3) ... [2025-02-07 22:07:40,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab8961c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 10:07:40, skipping insertion in model container [2025-02-07 22:07:40,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 10:07:40" (3/3) ... [2025-02-07 22:07:40,650 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c [2025-02-07 22:07:40,663 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 22:07:40,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c that has 1 procedures, 8 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 22:07:40,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 22:07:40,719 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;@313576c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 22:07:40,720 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 22:07:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-07 22:07:40,728 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:40,729 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-07 22:07:40,729 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:40,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:40,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1137951, now seen corresponding path program 1 times [2025-02-07 22:07:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 22:07:40,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820229194] [2025-02-07 22:07:40,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:40,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 22:07:40,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 22:07:40,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 22:07:40,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-07 22:07:41,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 22:07:41,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 22:07:41,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:41,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:41,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-02-07 22:07:41,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 22:07:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 22:07:41,734 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 22:07:41,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 22:07:41,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820229194] [2025-02-07 22:07:41,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820229194] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 22:07:41,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 22:07:41,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 22:07:41,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782916973] [2025-02-07 22:07:41,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 22:07:41,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 22:07:41,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 22:07:41,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 22:07:41,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 22:07:41,759 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:43,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-02-07 22:07:43,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 22:07:43,317 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2025-02-07 22:07:43,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 22:07:43,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2025-02-07 22:07:43,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 22:07:43,324 INFO L225 Difference]: With dead ends: 16 [2025-02-07 22:07:43,324 INFO L226 Difference]: Without dead ends: 9 [2025-02-07 22:07:43,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-07 22:07:43,328 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-02-07 22:07:43,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-02-07 22:07:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-02-07 22:07:43,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-02-07 22:07:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:43,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-07 22:07:43,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2025-02-07 22:07:43,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 22:07:43,355 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-07 22:07:43,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 22:07:43,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-07 22:07:43,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-07 22:07:43,356 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 22:07:43,356 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-07 22:07:43,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-07 22:07:43,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 22:07:43,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 22:07:43,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 22:07:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -458170295, now seen corresponding path program 1 times [2025-02-07 22:07:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 22:07:43,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978732545] [2025-02-07 22:07:43,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 22:07:43,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 22:07:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 22:07:43,562 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 22:07:43,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-07 22:07:44,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-07 22:07:44,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-07 22:07:44,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 22:07:44,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 22:07:44,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 59 conjuncts are in the unsatisfiable core [2025-02-07 22:07:44,405 INFO L279 TraceCheckSpWp]: Computing forward predicates...