./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.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.h_Vsa16.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 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:14:22,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:14:22,122 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-07 23:14:22,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:14:22,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:14:22,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:14:22,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:14:22,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:14:22,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:14:22,166 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:14:22,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:14:22,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:14:22,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:14:22,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:14:22,168 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:14:22,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:14:22,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:14:22,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 23:14:22,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:14:22,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:14:22,169 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:14:22,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:14:22,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:14:22,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:14:22,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:14:22,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:14:22,170 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:14:22,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:14:22,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 23:14:22,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 23:14:22,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:14:22,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:14:22,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:14:22,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:14:22,171 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 -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2025-02-07 23:14:22,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:14:22,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:14:22,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:14:22,494 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:14:22,494 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:14:22,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2025-02-07 23:14:23,788 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24aaf245e/82695ebab02f477790662fa6e1ab1456/FLAG0ad5afe71 [2025-02-07 23:14:24,195 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:14:24,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2025-02-07 23:14:24,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24aaf245e/82695ebab02f477790662fa6e1ab1456/FLAG0ad5afe71 [2025-02-07 23:14:24,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24aaf245e/82695ebab02f477790662fa6e1ab1456 [2025-02-07 23:14:24,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:14:24,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:14:24,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:14:24,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:14:24,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:14:24,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:14:24" (1/1) ... [2025-02-07 23:14:24,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d61396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:24, skipping insertion in model container [2025-02-07 23:14:24,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:14:24" (1/1) ... [2025-02-07 23:14:24,436 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:14:24,630 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.h_Vsa16.c[1247,1260] [2025-02-07 23:14:25,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:14:25,087 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:14:25,095 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.h_Vsa16.c[1247,1260] [2025-02-07 23:14:25,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:14:25,362 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:14:25,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25 WrapperNode [2025-02-07 23:14:25,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:14:25,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:14:25,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:14:25,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:14:25,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:25,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,143 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5354 [2025-02-07 23:14:26,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:14:26,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:14:26,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:14:26,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:14:26,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,420 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 23:14:26,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:14:26,805 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:14:26,805 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:14:26,805 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:14:26,808 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (1/1) ... [2025-02-07 23:14:26,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:14:26,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:14:26,841 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 23:14:26,845 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 23:14:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:14:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 23:14:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:14:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:14:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 23:14:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 23:14:27,311 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:14:27,313 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:14:33,176 INFO L? ?]: Removed 3177 outVars from TransFormulas that were not future-live. [2025-02-07 23:14:33,176 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:14:33,373 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:14:33,374 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:14:33,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:14:33 BoogieIcfgContainer [2025-02-07 23:14:33,374 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:14:33,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:14:33,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:14:33,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:14:33,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:14:24" (1/3) ... [2025-02-07 23:14:33,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a01508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:14:33, skipping insertion in model container [2025-02-07 23:14:33,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:25" (2/3) ... [2025-02-07 23:14:33,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a01508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:14:33, skipping insertion in model container [2025-02-07 23:14:33,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:14:33" (3/3) ... [2025-02-07 23:14:33,387 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2025-02-07 23:14:33,401 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:14:33,403 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_Vsa16.c that has 2 procedures, 1427 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:14:33,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:14:33,511 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;@4862b42d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:14:33,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:14:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 1427 states, 1420 states have (on average 1.4985915492957746) internal successors, (2128), 1421 states have internal predecessors, (2128), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 23:14:33,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-07 23:14:33,532 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:33,533 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] [2025-02-07 23:14:33,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:33,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:33,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1033989052, now seen corresponding path program 1 times [2025-02-07 23:14:33,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:14:33,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129582312] [2025-02-07 23:14:33,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:33,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:14:33,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-07 23:14:33,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-07 23:14:33,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:33,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:34,360 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 23:14:34,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:14:34,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129582312] [2025-02-07 23:14:34,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129582312] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:34,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:14:34,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-07 23:14:34,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266343323] [2025-02-07 23:14:34,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:34,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 23:14:34,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:14:34,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 23:14:34,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:14:34,396 INFO L87 Difference]: Start difference. First operand has 1427 states, 1420 states have (on average 1.4985915492957746) internal successors, (2128), 1421 states have internal predecessors, (2128), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:36,409 INFO L93 Difference]: Finished difference Result 4149 states and 6223 transitions. [2025-02-07 23:14:36,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 23:14:36,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2025-02-07 23:14:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:36,436 INFO L225 Difference]: With dead ends: 4149 [2025-02-07 23:14:36,436 INFO L226 Difference]: Without dead ends: 2775 [2025-02-07 23:14:36,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-07 23:14:36,445 INFO L435 NwaCegarLoop]: 3414 mSDtfsCounter, 2012 mSDsluCounter, 12011 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 15425 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:36,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 15425 Invalid, 3093 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-07 23:14:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2025-02-07 23:14:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 1431. [2025-02-07 23:14:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1423 states have (on average 1.4961349262122277) internal successors, (2129), 1424 states have internal predecessors, (2129), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 23:14:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2139 transitions. [2025-02-07 23:14:36,591 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2139 transitions. Word has length 42 [2025-02-07 23:14:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:36,592 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 2139 transitions. [2025-02-07 23:14:36,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:36,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2139 transitions. [2025-02-07 23:14:36,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-02-07 23:14:36,595 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:36,595 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] [2025-02-07 23:14:36,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 23:14:36,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:36,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1919053830, now seen corresponding path program 1 times [2025-02-07 23:14:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:14:36,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066793039] [2025-02-07 23:14:36,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:14:36,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-07 23:14:36,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-07 23:14:36,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:36,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:36,906 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 23:14:36,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:14:36,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066793039] [2025-02-07 23:14:36,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066793039] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:36,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:14:36,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:14:36,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103529375] [2025-02-07 23:14:36,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:36,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 23:14:36,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:14:36,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 23:14:36,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 23:14:36,910 INFO L87 Difference]: Start difference. First operand 1431 states and 2139 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:37,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:37,625 INFO L93 Difference]: Finished difference Result 2811 states and 4202 transitions. [2025-02-07 23:14:37,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 23:14:37,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2025-02-07 23:14:37,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:37,632 INFO L225 Difference]: With dead ends: 2811 [2025-02-07 23:14:37,632 INFO L226 Difference]: Without dead ends: 1433 [2025-02-07 23:14:37,635 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 23:14:37,635 INFO L435 NwaCegarLoop]: 1779 mSDtfsCounter, 0 mSDsluCounter, 3550 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:37,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5329 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-07 23:14:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2025-02-07 23:14:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1433. [2025-02-07 23:14:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1425 states have (on average 1.495438596491228) internal successors, (2131), 1426 states have internal predecessors, (2131), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 23:14:37,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2141 transitions. [2025-02-07 23:14:37,673 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2141 transitions. Word has length 43 [2025-02-07 23:14:37,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:37,673 INFO L471 AbstractCegarLoop]: Abstraction has 1433 states and 2141 transitions. [2025-02-07 23:14:37,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:37,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2141 transitions. [2025-02-07 23:14:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-02-07 23:14:37,675 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:37,676 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] [2025-02-07 23:14:37,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 23:14:37,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:37,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:37,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1261506623, now seen corresponding path program 1 times [2025-02-07 23:14:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:14:37,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229156065] [2025-02-07 23:14:37,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:37,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:14:37,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-07 23:14:37,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-07 23:14:37,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:37,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:37,995 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 23:14:37,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:14:37,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229156065] [2025-02-07 23:14:37,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229156065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:37,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:14:37,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 23:14:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735939728] [2025-02-07 23:14:37,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:37,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-07 23:14:37,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:14:37,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-07 23:14:37,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-07 23:14:37,997 INFO L87 Difference]: Start difference. First operand 1433 states and 2141 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:38,793 INFO L93 Difference]: Finished difference Result 2817 states and 4209 transitions. [2025-02-07 23:14:38,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 23:14:38,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-02-07 23:14:38,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:38,801 INFO L225 Difference]: With dead ends: 2817 [2025-02-07 23:14:38,801 INFO L226 Difference]: Without dead ends: 1437 [2025-02-07 23:14:38,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:14:38,808 INFO L435 NwaCegarLoop]: 1773 mSDtfsCounter, 2092 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 5308 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:38,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 5308 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-07 23:14:38,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2025-02-07 23:14:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1436. [2025-02-07 23:14:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1428 states have (on average 1.4943977591036415) internal successors, (2134), 1429 states have internal predecessors, (2134), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 23:14:38,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2144 transitions. [2025-02-07 23:14:38,848 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2144 transitions. Word has length 44 [2025-02-07 23:14:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:38,848 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2144 transitions. [2025-02-07 23:14:38,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:38,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2144 transitions. [2025-02-07 23:14:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-07 23:14:38,853 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:38,853 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] [2025-02-07 23:14:38,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 23:14:38,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:38,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1734654593, now seen corresponding path program 1 times [2025-02-07 23:14:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:14:38,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694726394] [2025-02-07 23:14:38,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:14:38,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-07 23:14:38,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-07 23:14:38,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:38,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:39,353 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 23:14:39,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:14:39,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694726394] [2025-02-07 23:14:39,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694726394] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:39,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:14:39,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-07 23:14:39,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634531527] [2025-02-07 23:14:39,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:39,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-07 23:14:39,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:14:39,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-07 23:14:39,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-07 23:14:39,356 INFO L87 Difference]: Start difference. First operand 1436 states and 2144 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:40,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:40,520 INFO L93 Difference]: Finished difference Result 2817 states and 4207 transitions. [2025-02-07 23:14:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-07 23:14:40,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2025-02-07 23:14:40,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:40,528 INFO L225 Difference]: With dead ends: 2817 [2025-02-07 23:14:40,528 INFO L226 Difference]: Without dead ends: 1434 [2025-02-07 23:14:40,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-07 23:14:40,532 INFO L435 NwaCegarLoop]: 1766 mSDtfsCounter, 2083 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 1834 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 8815 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:40,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2087 Valid, 8815 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1834 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-07 23:14:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2025-02-07 23:14:40,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1431. [2025-02-07 23:14:40,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1423 states have (on average 1.494729444834856) internal successors, (2127), 1424 states have internal predecessors, (2127), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 23:14:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2137 transitions. [2025-02-07 23:14:40,564 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2137 transitions. Word has length 45 [2025-02-07 23:14:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:40,564 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 2137 transitions. [2025-02-07 23:14:40,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:40,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2137 transitions. [2025-02-07 23:14:40,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-07 23:14:40,567 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:40,567 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] [2025-02-07 23:14:40,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 23:14:40,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:40,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1283529202, now seen corresponding path program 1 times [2025-02-07 23:14:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:14:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592466243] [2025-02-07 23:14:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:14:40,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-07 23:14:40,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-07 23:14:40,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:40,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:41,250 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 23:14:41,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 23:14:41,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592466243] [2025-02-07 23:14:41,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592466243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:41,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:14:41,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-07 23:14:41,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976731925] [2025-02-07 23:14:41,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:41,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-07 23:14:41,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 23:14:41,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-07 23:14:41,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-07 23:14:41,253 INFO L87 Difference]: Start difference. First operand 1431 states and 2137 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:42,528 INFO L93 Difference]: Finished difference Result 2818 states and 4208 transitions. [2025-02-07 23:14:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-07 23:14:42,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2025-02-07 23:14:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:42,535 INFO L225 Difference]: With dead ends: 2818 [2025-02-07 23:14:42,536 INFO L226 Difference]: Without dead ends: 1440 [2025-02-07 23:14:42,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-07 23:14:42,539 INFO L435 NwaCegarLoop]: 1766 mSDtfsCounter, 2101 mSDsluCounter, 5284 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 7050 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:42,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 7050 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-07 23:14:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2025-02-07 23:14:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1435. [2025-02-07 23:14:42,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1427 states have (on average 1.494043447792572) internal successors, (2132), 1428 states have internal predecessors, (2132), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 23:14:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2142 transitions. [2025-02-07 23:14:42,576 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2142 transitions. Word has length 45 [2025-02-07 23:14:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:42,577 INFO L471 AbstractCegarLoop]: Abstraction has 1435 states and 2142 transitions. [2025-02-07 23:14:42,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2142 transitions. [2025-02-07 23:14:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-07 23:14:42,579 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:42,579 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] [2025-02-07 23:14:42,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-07 23:14:42,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:42,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:42,581 INFO L85 PathProgramCache]: Analyzing trace with hash 324753614, now seen corresponding path program 1 times [2025-02-07 23:14:42,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 23:14:42,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739956973] [2025-02-07 23:14:42,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:42,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 23:14:42,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-07 23:14:42,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-07 23:14:42,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:42,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 23:14:42,658 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 23:14:42,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-07 23:14:42,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-07 23:14:42,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:42,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 23:14:42,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 23:14:42,780 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 23:14:42,781 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 23:14:42,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-07 23:14:42,792 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-02-07 23:14:42,856 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-02-07 23:14:42,880 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 23:14:42,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 11:14:42 BoogieIcfgContainer [2025-02-07 23:14:42,884 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 23:14:42,885 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 23:14:42,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 23:14:42,885 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 23:14:42,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:14:33" (3/4) ... [2025-02-07 23:14:42,888 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 23:14:42,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 23:14:42,889 INFO L158 Benchmark]: Toolchain (without parser) took 18522.43ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 109.1MB in the beginning and 230.3MB in the end (delta: -121.2MB). Peak memory consumption was 242.5MB. Max. memory is 16.1GB. [2025-02-07 23:14:42,890 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 23:14:42,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 994.97ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 74.2MB in the end (delta: 34.5MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2025-02-07 23:14:42,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 780.43ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 74.2MB in the beginning and 227.5MB in the end (delta: -153.4MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2025-02-07 23:14:42,890 INFO L158 Benchmark]: Boogie Preprocessor took 659.80ms. Allocated memory is still 369.1MB. Free memory was 227.5MB in the beginning and 215.1MB in the end (delta: 12.5MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2025-02-07 23:14:42,891 INFO L158 Benchmark]: IcfgBuilder took 6569.22ms. Allocated memory was 369.1MB in the beginning and 595.6MB in the end (delta: 226.5MB). Free memory was 215.1MB in the beginning and 376.7MB in the end (delta: -161.6MB). Peak memory consumption was 352.3MB. Max. memory is 16.1GB. [2025-02-07 23:14:42,891 INFO L158 Benchmark]: TraceAbstraction took 9504.69ms. Allocated memory was 595.6MB in the beginning and 503.3MB in the end (delta: -92.3MB). Free memory was 376.7MB in the beginning and 230.3MB in the end (delta: 146.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2025-02-07 23:14:42,891 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 503.3MB. Free memory was 230.3MB in the beginning and 230.3MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 23:14:42,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 994.97ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 74.2MB in the end (delta: 34.5MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 780.43ms. Allocated memory was 142.6MB in the beginning and 369.1MB in the end (delta: 226.5MB). Free memory was 74.2MB in the beginning and 227.5MB in the end (delta: -153.4MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 659.80ms. Allocated memory is still 369.1MB. Free memory was 227.5MB in the beginning and 215.1MB in the end (delta: 12.5MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * IcfgBuilder took 6569.22ms. Allocated memory was 369.1MB in the beginning and 595.6MB in the end (delta: 226.5MB). Free memory was 215.1MB in the beginning and 376.7MB in the end (delta: -161.6MB). Peak memory consumption was 352.3MB. Max. memory is 16.1GB. * TraceAbstraction took 9504.69ms. Allocated memory was 595.6MB in the beginning and 503.3MB in the end (delta: -92.3MB). Free memory was 376.7MB in the beginning and 230.3MB in the end (delta: 146.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 503.3MB. Free memory was 230.3MB in the beginning and 230.3MB in the end (delta: 32.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 344. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 12); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (12 - 1); [L35] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L36] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L38] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 3); [L39] const SORT_37 msb_SORT_37 = (SORT_37)1 << (3 - 1); [L41] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 2); [L42] const SORT_44 msb_SORT_44 = (SORT_44)1 << (2 - 1); [L44] const SORT_295 mask_SORT_295 = (SORT_295)-1 >> (sizeof(SORT_295) * 8 - 4); [L45] const SORT_295 msb_SORT_295 = (SORT_295)1 << (4 - 1); [L47] const SORT_297 mask_SORT_297 = (SORT_297)-1 >> (sizeof(SORT_297) * 8 - 5); [L48] const SORT_297 msb_SORT_297 = (SORT_297)1 << (5 - 1); [L50] const SORT_299 mask_SORT_299 = (SORT_299)-1 >> (sizeof(SORT_299) * 8 - 6); [L51] const SORT_299 msb_SORT_299 = (SORT_299)1 << (6 - 1); [L53] const SORT_301 mask_SORT_301 = (SORT_301)-1 >> (sizeof(SORT_301) * 8 - 7); [L54] const SORT_301 msb_SORT_301 = (SORT_301)1 << (7 - 1); [L56] const SORT_303 mask_SORT_303 = (SORT_303)-1 >> (sizeof(SORT_303) * 8 - 8); [L57] const SORT_303 msb_SORT_303 = (SORT_303)1 << (8 - 1); [L59] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 9); [L60] const SORT_305 msb_SORT_305 = (SORT_305)1 << (9 - 1); [L62] const SORT_307 mask_SORT_307 = (SORT_307)-1 >> (sizeof(SORT_307) * 8 - 10); [L63] const SORT_307 msb_SORT_307 = (SORT_307)1 << (10 - 1); [L65] const SORT_309 mask_SORT_309 = (SORT_309)-1 >> (sizeof(SORT_309) * 8 - 11); [L66] const SORT_309 msb_SORT_309 = (SORT_309)1 << (11 - 1); [L68] const SORT_312 mask_SORT_312 = (SORT_312)-1 >> (sizeof(SORT_312) * 8 - 13); [L69] const SORT_312 msb_SORT_312 = (SORT_312)1 << (13 - 1); [L71] const SORT_314 mask_SORT_314 = (SORT_314)-1 >> (sizeof(SORT_314) * 8 - 14); [L72] const SORT_314 msb_SORT_314 = (SORT_314)1 << (14 - 1); [L74] const SORT_316 mask_SORT_316 = (SORT_316)-1 >> (sizeof(SORT_316) * 8 - 15); [L75] const SORT_316 msb_SORT_316 = (SORT_316)1 << (15 - 1); [L77] const SORT_533 mask_SORT_533 = (SORT_533)-1 >> (sizeof(SORT_533) * 8 - 17); [L78] const SORT_533 msb_SORT_533 = (SORT_533)1 << (17 - 1); [L80] const SORT_6 var_7 = 0; [L81] const SORT_11 var_13 = 0; [L82] const SORT_3 var_21 = 0; [L83] const SORT_1 var_26 = 0; [L84] const SORT_37 var_38 = 0; [L85] const SORT_1 var_57 = 1; [L86] const SORT_37 var_93 = 2; [L87] const SORT_37 var_97 = 1; [L88] const SORT_37 var_105 = 4; [L89] const SORT_37 var_107 = 5; [L90] const SORT_37 var_111 = 3; [L91] const SORT_6 var_128 = 2; [L92] const SORT_44 var_138 = 0; [L93] const SORT_3 var_145 = 65535; [L94] const SORT_297 var_534 = 0; [L95] const SORT_301 var_626 = 5; [L96] const SORT_301 var_630 = 4; [L97] const SORT_301 var_634 = 3; [L98] const SORT_301 var_638 = 2; [L99] const SORT_301 var_642 = 1; [L100] const SORT_301 var_646 = 0; [L102] SORT_1 input_2; [L103] SORT_3 input_4; [L104] SORT_3 input_5; [L105] SORT_6 input_114; [L106] SORT_6 input_115; [L107] SORT_6 input_116; [L108] SORT_3 input_134; [L109] SORT_3 input_135; [L110] SORT_3 input_136; [L111] SORT_3 input_144; [L112] SORT_3 input_153; [L113] SORT_3 input_154; [L114] SORT_3 input_155; [L115] SORT_3 input_158; [L116] SORT_3 input_176; [L117] SORT_3 input_177; [L118] SORT_3 input_178; [L119] SORT_3 input_181; [L120] SORT_3 input_183; [L121] SORT_44 input_197; [L122] SORT_44 input_198; [L123] SORT_44 input_199; [L124] SORT_3 input_529; [L125] SORT_3 input_530; [L126] SORT_3 input_531; [L127] SORT_3 input_532; [L128] SORT_3 input_555; [L129] SORT_3 input_557; [L130] SORT_3 input_559; [L131] SORT_3 input_563; [L132] SORT_3 input_564; [L133] SORT_3 input_565; [L134] SORT_3 input_566; [L135] SORT_3 input_585; [L136] SORT_3 input_589; [L137] SORT_3 input_591; [L138] SORT_3 input_598; [L139] SORT_3 input_600; [L140] SORT_3 input_605; [L141] SORT_3 input_607; [L142] SORT_3 input_611; [L143] SORT_3 input_612; [L144] SORT_3 input_613; [L145] SORT_3 input_614; [L146] SORT_3 input_615; [L147] SORT_3 input_616; [L148] SORT_3 input_617; [L149] SORT_3 input_618; [L150] SORT_3 input_619; [L151] SORT_3 input_620; [L152] SORT_3 input_621; [L153] SORT_3 input_622; [L154] SORT_3 input_629; [L155] SORT_3 input_633; [L156] SORT_3 input_637; [L157] SORT_3 input_641; [L158] SORT_3 input_645; [L159] SORT_3 input_650; [L160] SORT_3 input_656; [L161] SORT_3 input_658; [L162] SORT_3 input_660; [L163] SORT_3 input_662; [L164] SORT_3 input_665; [L165] SORT_3 input_671; [L166] SORT_3 input_673; [L167] SORT_3 input_675; [L168] SORT_3 input_678; [L169] SORT_3 input_684; [L170] SORT_3 input_686; [L171] SORT_3 input_689; [L172] SORT_3 input_695; [L173] SORT_3 input_698; [L174] SORT_3 input_705; [L175] SORT_3 input_710; [L176] SORT_1 input_729; [L177] SORT_1 input_730; [L178] SORT_1 input_731; [L179] SORT_1 input_732; [L180] SORT_1 input_735; [L181] SORT_1 input_737; [L182] SORT_1 input_739; [L183] SORT_1 input_744; [L184] SORT_1 input_746; [L185] SORT_1 input_751; [L186] SORT_3 input_764; [L187] SORT_3 input_765; [L188] SORT_3 input_766; [L190] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L190] SORT_6 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L191] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L191] SORT_6 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L192] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L192] SORT_3 state_22 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L193] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L193] SORT_3 state_24 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L194] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L194] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L195] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L195] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L196] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L196] SORT_37 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L197] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L197] SORT_3 state_80 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L198] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L198] SORT_3 state_82 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L199] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L199] SORT_3 state_84 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L200] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L200] SORT_1 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L201] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L201] SORT_3 state_88 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L202] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L202] SORT_3 state_90 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L204] SORT_6 init_9_arg_1 = var_7; [L205] state_8 = init_9_arg_1 [L206] SORT_6 init_16_arg_1 = var_7; [L207] state_15 = init_16_arg_1 [L208] SORT_3 init_23_arg_1 = var_21; [L209] state_22 = init_23_arg_1 [L210] SORT_3 init_25_arg_1 = var_21; [L211] state_24 = init_25_arg_1 [L212] SORT_3 init_29_arg_1 = var_21; [L213] state_28 = init_29_arg_1 [L214] SORT_3 init_31_arg_1 = var_21; [L215] state_30 = init_31_arg_1 [L216] SORT_37 init_40_arg_1 = var_38; [L217] state_39 = init_40_arg_1 [L218] SORT_3 init_81_arg_1 = var_21; [L219] state_80 = init_81_arg_1 [L220] SORT_3 init_83_arg_1 = var_21; [L221] state_82 = init_83_arg_1 [L222] SORT_3 init_85_arg_1 = var_21; [L223] state_84 = init_85_arg_1 [L224] SORT_1 init_87_arg_1 = var_26; [L225] state_86 = init_87_arg_1 [L226] SORT_3 init_89_arg_1 = var_21; [L227] state_88 = init_89_arg_1 [L228] SORT_3 init_91_arg_1 = var_21; [L229] state_90 = init_91_arg_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L232] input_2 = __VERIFIER_nondet_uchar() [L233] input_4 = __VERIFIER_nondet_ushort() [L234] input_5 = __VERIFIER_nondet_ushort() [L235] input_114 = __VERIFIER_nondet_ushort() [L236] input_115 = __VERIFIER_nondet_ushort() [L237] input_116 = __VERIFIER_nondet_ushort() [L238] input_134 = __VERIFIER_nondet_ushort() [L239] input_135 = __VERIFIER_nondet_ushort() [L240] input_136 = __VERIFIER_nondet_ushort() [L241] input_144 = __VERIFIER_nondet_ushort() [L242] input_153 = __VERIFIER_nondet_ushort() [L243] input_154 = __VERIFIER_nondet_ushort() [L244] input_155 = __VERIFIER_nondet_ushort() [L245] input_158 = __VERIFIER_nondet_ushort() [L246] input_176 = __VERIFIER_nondet_ushort() [L247] input_177 = __VERIFIER_nondet_ushort() [L248] input_178 = __VERIFIER_nondet_ushort() [L249] input_181 = __VERIFIER_nondet_ushort() [L250] input_183 = __VERIFIER_nondet_ushort() [L251] input_197 = __VERIFIER_nondet_uchar() [L252] input_198 = __VERIFIER_nondet_uchar() [L253] input_199 = __VERIFIER_nondet_uchar() [L254] input_529 = __VERIFIER_nondet_ushort() [L255] input_530 = __VERIFIER_nondet_ushort() [L256] input_531 = __VERIFIER_nondet_ushort() [L257] input_532 = __VERIFIER_nondet_ushort() [L258] input_555 = __VERIFIER_nondet_ushort() [L259] input_557 = __VERIFIER_nondet_ushort() [L260] input_559 = __VERIFIER_nondet_ushort() [L261] input_563 = __VERIFIER_nondet_ushort() [L262] input_564 = __VERIFIER_nondet_ushort() [L263] input_565 = __VERIFIER_nondet_ushort() [L264] input_566 = __VERIFIER_nondet_ushort() [L265] input_585 = __VERIFIER_nondet_ushort() [L266] input_589 = __VERIFIER_nondet_ushort() [L267] input_591 = __VERIFIER_nondet_ushort() [L268] input_598 = __VERIFIER_nondet_ushort() [L269] input_600 = __VERIFIER_nondet_ushort() [L270] input_605 = __VERIFIER_nondet_ushort() [L271] input_607 = __VERIFIER_nondet_ushort() [L272] input_611 = __VERIFIER_nondet_ushort() [L273] input_612 = __VERIFIER_nondet_ushort() [L274] input_613 = __VERIFIER_nondet_ushort() [L275] input_614 = __VERIFIER_nondet_ushort() [L276] input_615 = __VERIFIER_nondet_ushort() [L277] input_616 = __VERIFIER_nondet_ushort() [L278] input_617 = __VERIFIER_nondet_ushort() [L279] input_618 = __VERIFIER_nondet_ushort() [L280] input_619 = __VERIFIER_nondet_ushort() [L281] input_620 = __VERIFIER_nondet_ushort() [L282] input_621 = __VERIFIER_nondet_ushort() [L283] input_622 = __VERIFIER_nondet_ushort() [L284] input_629 = __VERIFIER_nondet_ushort() [L285] input_633 = __VERIFIER_nondet_ushort() [L286] input_637 = __VERIFIER_nondet_ushort() [L287] input_641 = __VERIFIER_nondet_ushort() [L288] input_645 = __VERIFIER_nondet_ushort() [L289] input_650 = __VERIFIER_nondet_ushort() [L290] input_656 = __VERIFIER_nondet_ushort() [L291] input_658 = __VERIFIER_nondet_ushort() [L292] input_660 = __VERIFIER_nondet_ushort() [L293] input_662 = __VERIFIER_nondet_ushort() [L294] input_665 = __VERIFIER_nondet_ushort() [L295] input_671 = __VERIFIER_nondet_ushort() [L296] input_673 = __VERIFIER_nondet_ushort() [L297] input_675 = __VERIFIER_nondet_ushort() [L298] input_678 = __VERIFIER_nondet_ushort() [L299] input_684 = __VERIFIER_nondet_ushort() [L300] input_686 = __VERIFIER_nondet_ushort() [L301] input_689 = __VERIFIER_nondet_ushort() [L302] input_695 = __VERIFIER_nondet_ushort() [L303] input_698 = __VERIFIER_nondet_ushort() [L304] input_705 = __VERIFIER_nondet_ushort() [L305] input_710 = __VERIFIER_nondet_ushort() [L306] input_729 = __VERIFIER_nondet_uchar() [L307] input_730 = __VERIFIER_nondet_uchar() [L308] input_731 = __VERIFIER_nondet_uchar() [L309] input_732 = __VERIFIER_nondet_uchar() [L310] input_735 = __VERIFIER_nondet_uchar() [L311] input_737 = __VERIFIER_nondet_uchar() [L312] input_739 = __VERIFIER_nondet_uchar() [L313] input_744 = __VERIFIER_nondet_uchar() [L314] input_746 = __VERIFIER_nondet_uchar() [L315] input_751 = __VERIFIER_nondet_uchar() [L316] input_764 = __VERIFIER_nondet_ushort() [L317] input_765 = __VERIFIER_nondet_ushort() [L318] input_766 = __VERIFIER_nondet_ushort() [L321] SORT_6 var_10_arg_0 = state_8; [L322] SORT_1 var_10 = var_10_arg_0 >> 0; [L323] SORT_1 var_52_arg_0 = var_10; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_52_arg_0=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L324] EXPR var_52_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L324] var_52_arg_0 = var_52_arg_0 & mask_SORT_1 [L325] SORT_11 var_52 = var_52_arg_0; [L326] SORT_11 var_53_arg_0 = var_52; [L327] SORT_11 var_53_arg_1 = var_13; [L328] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L329] SORT_6 var_17_arg_0 = state_15; [L330] SORT_1 var_17 = var_17_arg_0 >> 0; [L331] SORT_1 var_54_arg_0 = var_17; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_53=1, var_54_arg_0=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L332] EXPR var_54_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_53=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L332] var_54_arg_0 = var_54_arg_0 & mask_SORT_1 [L333] SORT_11 var_54 = var_54_arg_0; [L334] SORT_11 var_55_arg_0 = var_54; [L335] SORT_11 var_55_arg_1 = var_13; [L336] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L337] SORT_1 var_56_arg_0 = var_53; [L338] SORT_1 var_56_arg_1 = var_55; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L339] EXPR var_56_arg_0 & var_56_arg_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L339] SORT_1 var_56 = var_56_arg_0 & var_56_arg_1; [L340] SORT_1 var_58_arg_0 = var_56; [L341] SORT_1 var_58 = ~var_58_arg_0; [L342] SORT_1 var_59_arg_0 = var_57; [L343] SORT_1 var_59_arg_1 = var_58; VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_59_arg_0=1, var_59_arg_1=-2, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L344] EXPR var_59_arg_0 & var_59_arg_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L344] SORT_1 var_59 = var_59_arg_0 & var_59_arg_1; [L345] EXPR var_59 & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L345] var_59 = var_59 & mask_SORT_1 [L346] SORT_1 bad_60_arg_0 = var_59; VAL [bad_60_arg_0=1, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_6=4095, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_93=2, var_97=1] [L347] CALL __VERIFIER_assert(!(bad_60_arg_0)) VAL [\old(cond)=0] [L21] COND TRUE !(cond) VAL [\old(cond)=0] [L21] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 1427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8304 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8288 mSDsluCounter, 41927 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31429 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8564 IncrementalHoareTripleChecker+Invalid, 8568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 10498 mSDtfsCounter, 8564 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1436occurred in iteration=3, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 1353 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 265 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 23:14:42,918 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.h_Vsa16.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 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 23:14:45,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 23:14:45,367 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-02-07 23:14:45,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 23:14:45,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 23:14:45,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 23:14:45,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 23:14:45,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 23:14:45,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 23:14:45,443 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 23:14:45,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 23:14:45,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 23:14:45,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 23:14:45,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 23:14:45,443 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 23:14:45,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 23:14:45,444 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 23:14:45,444 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:14:45,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 23:14:45,445 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 23:14:45,451 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 23:14:45,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 23:14:45,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 23:14:45,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 23:14:45,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 23:14:45,451 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 -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2025-02-07 23:14:45,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 23:14:45,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 23:14:45,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 23:14:45,732 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 23:14:45,733 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 23:14:45,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2025-02-07 23:14:47,076 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ab82106f/162c95546d2c427491afa2b2bf924fd8/FLAG3c6eb21cf [2025-02-07 23:14:47,500 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 23:14:47,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2025-02-07 23:14:47,535 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ab82106f/162c95546d2c427491afa2b2bf924fd8/FLAG3c6eb21cf [2025-02-07 23:14:47,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ab82106f/162c95546d2c427491afa2b2bf924fd8 [2025-02-07 23:14:47,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 23:14:47,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 23:14:47,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 23:14:47,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 23:14:47,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 23:14:47,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:14:47" (1/1) ... [2025-02-07 23:14:47,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1bb135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:47, skipping insertion in model container [2025-02-07 23:14:47,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 11:14:47" (1/1) ... [2025-02-07 23:14:47,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 23:14:47,793 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.h_Vsa16.c[1247,1260] [2025-02-07 23:14:48,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:14:48,090 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 23:14:48,100 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.h_Vsa16.c[1247,1260] [2025-02-07 23:14:48,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 23:14:48,268 INFO L204 MainTranslator]: Completed translation [2025-02-07 23:14:48,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48 WrapperNode [2025-02-07 23:14:48,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 23:14:48,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 23:14:48,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 23:14:48,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 23:14:48,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,414 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2536 [2025-02-07 23:14:48,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 23:14:48,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 23:14:48,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 23:14:48,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 23:14:48,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,451 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,553 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 23:14:48,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,626 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 23:14:48,674 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 23:14:48,674 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 23:14:48,674 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 23:14:48,675 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (1/1) ... [2025-02-07 23:14:48,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 23:14:48,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:14:48,701 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 23:14:48,703 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 23:14:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 23:14:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 23:14:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 23:14:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 23:14:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-07 23:14:48,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-07 23:14:49,136 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 23:14:49,138 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 23:14:52,042 INFO L? ?]: Removed 242 outVars from TransFormulas that were not future-live. [2025-02-07 23:14:52,042 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 23:14:52,052 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 23:14:52,052 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 23:14:52,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:14:52 BoogieIcfgContainer [2025-02-07 23:14:52,053 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 23:14:52,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 23:14:52,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 23:14:52,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 23:14:52,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 11:14:47" (1/3) ... [2025-02-07 23:14:52,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42efc636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:14:52, skipping insertion in model container [2025-02-07 23:14:52,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 11:14:48" (2/3) ... [2025-02-07 23:14:52,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42efc636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 11:14:52, skipping insertion in model container [2025-02-07 23:14:52,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 11:14:52" (3/3) ... [2025-02-07 23:14:52,062 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2025-02-07 23:14:52,075 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 23:14:52,076 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_Vsa16.c that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-07 23:14:52,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 23:14:52,133 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;@6b474e7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 23:14:52,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 23:14:52,137 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 23:14:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 23:14:52,143 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:52,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 23:14:52,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:52,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:52,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1182837687, now seen corresponding path program 1 times [2025-02-07 23:14:52,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:14:52,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671308323] [2025-02-07 23:14:52,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:52,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:14:52,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:14:52,167 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 23:14:52,170 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 23:14:52,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 23:14:52,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 23:14:52,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:52,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:52,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-02-07 23:14:52,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:14:53,006 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 23:14:53,006 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 23:14:53,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 23:14:53,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671308323] [2025-02-07 23:14:53,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671308323] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:53,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 23:14:53,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-07 23:14:53,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274240714] [2025-02-07 23:14:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:53,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 23:14:53,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 23:14:53,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 23:14:53,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-07 23:14:53,034 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:53,382 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2025-02-07 23:14:53,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 23:14:53,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-07 23:14:53,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:53,392 INFO L225 Difference]: With dead ends: 46 [2025-02-07 23:14:53,392 INFO L226 Difference]: Without dead ends: 29 [2025-02-07 23:14:53,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-07 23:14:53,398 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:53,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 54 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-07 23:14:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-02-07 23:14:53,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2025-02-07 23:14:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-07 23:14:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2025-02-07 23:14:53,438 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 6 [2025-02-07 23:14:53,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:53,439 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2025-02-07 23:14:53,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 23:14:53,439 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2025-02-07 23:14:53,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-07 23:14:53,440 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:53,440 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:14:53,451 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 23:14:53,645 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 23:14:53,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:53,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:53,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1731783265, now seen corresponding path program 1 times [2025-02-07 23:14:53,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:14:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356141559] [2025-02-07 23:14:53,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:53,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:14:53,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:14:53,649 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 23:14:53,650 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 23:14:54,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-07 23:14:54,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-07 23:14:54,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:54,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:54,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-07 23:14:54,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:14:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:14:54,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 23:14:54,783 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 23:14:54,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356141559] [2025-02-07 23:14:54,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356141559] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 23:14:54,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [817646668] [2025-02-07 23:14:54,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:54,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-07 23:14:54,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-07 23:14:54,789 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-07 23:14:54,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2025-02-07 23:14:55,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-07 23:14:55,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-07 23:14:55,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:55,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:55,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-07 23:14:55,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:14:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 23:14:55,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 23:14:55,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [817646668] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:55,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-07 23:14:55,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2025-02-07 23:14:55,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099774394] [2025-02-07 23:14:55,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:55,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 23:14:55,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 23:14:55,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 23:14:55,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-07 23:14:55,593 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-07 23:14:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:55,818 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2025-02-07 23:14:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 23:14:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-02-07 23:14:55,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:55,820 INFO L225 Difference]: With dead ends: 35 [2025-02-07 23:14:55,820 INFO L226 Difference]: Without dead ends: 33 [2025-02-07 23:14:55,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-02-07 23:14:55,821 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:55,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 63 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-07 23:14:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-02-07 23:14:55,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2025-02-07 23:14:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 23:14:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2025-02-07 23:14:55,826 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 12 [2025-02-07 23:14:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:55,826 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2025-02-07 23:14:55,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-07 23:14:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2025-02-07 23:14:55,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-07 23:14:55,827 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:55,827 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:14:55,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-07 23:14:56,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2025-02-07 23:14:56,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-07 23:14:56,229 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:56,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:56,229 INFO L85 PathProgramCache]: Analyzing trace with hash -39372659, now seen corresponding path program 1 times [2025-02-07 23:14:56,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:14:56,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150112396] [2025-02-07 23:14:56,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:56,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:14:56,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:14:56,233 INFO L229 MonitoredProcess]: Starting monitored process 5 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 23:14:56,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-07 23:14:56,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-07 23:14:56,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-07 23:14:56,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:56,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:56,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-07 23:14:56,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:14:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-07 23:14:56,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 23:14:56,926 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 23:14:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150112396] [2025-02-07 23:14:56,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150112396] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 23:14:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1376269546] [2025-02-07 23:14:56,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:56,927 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-07 23:14:56,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-07 23:14:56,930 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-07 23:14:56,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2025-02-07 23:14:57,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-07 23:14:57,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-07 23:14:57,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:57,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:57,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-07 23:14:57,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:14:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-07 23:14:57,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 23:14:57,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1376269546] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:14:57,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-07 23:14:57,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2025-02-07 23:14:57,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977143490] [2025-02-07 23:14:57,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:14:57,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 23:14:57,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 23:14:57,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 23:14:57,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-07 23:14:57,828 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 23:14:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:14:58,091 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2025-02-07 23:14:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 23:14:58,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-02-07 23:14:58,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:14:58,092 INFO L225 Difference]: With dead ends: 39 [2025-02-07 23:14:58,092 INFO L226 Difference]: Without dead ends: 37 [2025-02-07 23:14:58,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-02-07 23:14:58,093 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:14:58,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-07 23:14:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-02-07 23:14:58,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2025-02-07 23:14:58,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-07 23:14:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2025-02-07 23:14:58,100 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2025-02-07 23:14:58,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:14:58,100 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2025-02-07 23:14:58,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 23:14:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2025-02-07 23:14:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-07 23:14:58,101 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:14:58,101 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:14:58,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2025-02-07 23:14:58,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-07 23:14:58,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:14:58,502 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:14:58,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:14:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1011979077, now seen corresponding path program 1 times [2025-02-07 23:14:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:14:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1403689660] [2025-02-07 23:14:58,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:14:58,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:14:58,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:14:58,506 INFO L229 MonitoredProcess]: Starting monitored process 7 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 23:14:58,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-07 23:14:58,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 23:14:58,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 23:14:58,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:14:58,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:14:58,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 68 conjuncts are in the unsatisfiable core [2025-02-07 23:14:58,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:14:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-07 23:14:59,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 23:15:01,071 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 23:15:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403689660] [2025-02-07 23:15:01,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403689660] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 23:15:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2090247312] [2025-02-07 23:15:01,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:15:01,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-07 23:15:01,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-07 23:15:01,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-07 23:15:01,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2025-02-07 23:15:01,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-07 23:15:01,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-07 23:15:01,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:15:01,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:15:01,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-02-07 23:15:01,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:15:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-07 23:15:01,846 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 23:15:01,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2090247312] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 23:15:01,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-07 23:15:01,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 11 [2025-02-07 23:15:01,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702184196] [2025-02-07 23:15:01,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 23:15:01,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-07 23:15:01,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 23:15:01,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-07 23:15:01,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-07 23:15:01,848 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-07 23:15:02,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:15:02,106 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2025-02-07 23:15:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-07 23:15:02,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2025-02-07 23:15:02,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:15:02,107 INFO L225 Difference]: With dead ends: 43 [2025-02-07 23:15:02,107 INFO L226 Difference]: Without dead ends: 41 [2025-02-07 23:15:02,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2025-02-07 23:15:02,107 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-07 23:15:02,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 85 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-07 23:15:02,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-02-07 23:15:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2025-02-07 23:15:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-07 23:15:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2025-02-07 23:15:02,114 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 24 [2025-02-07 23:15:02,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:15:02,114 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2025-02-07 23:15:02,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-07 23:15:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2025-02-07 23:15:02,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-02-07 23:15:02,115 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:15:02,115 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:15:02,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-07 23:15:02,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2025-02-07 23:15:02,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2025-02-07 23:15:02,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:15:02,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:15:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1612330516, now seen corresponding path program 1 times [2025-02-07 23:15:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:15:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847110943] [2025-02-07 23:15:02,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:15:02,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:15:02,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:15:02,520 INFO L229 MonitoredProcess]: Starting monitored process 9 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 23:15:02,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-07 23:15:02,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-07 23:15:03,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-07 23:15:03,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:15:03,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:15:03,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-02-07 23:15:03,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:15:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-07 23:15:03,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 23:15:04,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 23:15:04,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847110943] [2025-02-07 23:15:04,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847110943] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 23:15:04,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1528422016] [2025-02-07 23:15:04,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 23:15:04,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-07 23:15:04,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-07 23:15:04,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-07 23:15:04,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2025-02-07 23:15:05,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-07 23:15:05,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-07 23:15:05,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 23:15:05,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:15:05,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-02-07 23:15:05,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 23:15:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-07 23:15:05,936 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-07 23:15:06,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1528422016] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 23:15:06,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-07 23:15:06,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 11 [2025-02-07 23:15:06,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491927479] [2025-02-07 23:15:06,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-07 23:15:06,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-07 23:15:06,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 23:15:06,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-07 23:15:06,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2025-02-07 23:15:06,899 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 11 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-07 23:15:07,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 23:15:07,279 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2025-02-07 23:15:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-07 23:15:07,280 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 31 [2025-02-07 23:15:07,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 23:15:07,281 INFO L225 Difference]: With dead ends: 56 [2025-02-07 23:15:07,281 INFO L226 Difference]: Without dead ends: 54 [2025-02-07 23:15:07,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2025-02-07 23:15:07,282 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-07 23:15:07,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 38 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-07 23:15:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-07 23:15:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2025-02-07 23:15:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-07 23:15:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2025-02-07 23:15:07,291 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 31 [2025-02-07 23:15:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 23:15:07,291 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2025-02-07 23:15:07,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-07 23:15:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2025-02-07 23:15:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-07 23:15:07,292 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 23:15:07,292 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 23:15:07,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2025-02-07 23:15:07,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-07 23:15:07,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:15:07,693 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 23:15:07,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 23:15:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2108062462, now seen corresponding path program 2 times [2025-02-07 23:15:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 23:15:07,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978306422] [2025-02-07 23:15:07,695 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-07 23:15:07,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 23:15:07,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 23:15:07,698 INFO L229 MonitoredProcess]: Starting monitored process 11 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 23:15:07,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-07 23:15:08,182 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-02-07 23:15:08,259 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-02-07 23:15:08,259 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-07 23:15:08,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 23:15:08,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-02-07 23:15:08,282 INFO L279 TraceCheckSpWp]: Computing forward predicates...