./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c7f343ca08bbb19155b6fdcbbb14166f212aafb2275923d09d7fbaf9a31202b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 08:47:04,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 08:47:04,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 08:47:04,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 08:47:04,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 08:47:04,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 08:47:04,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 08:47:04,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 08:47:04,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 08:47:04,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 08:47:04,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 08:47:04,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 08:47:04,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 08:47:04,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 08:47:04,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 08:47:04,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 08:47:04,305 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f343ca08bbb19155b6fdcbbb14166f212aafb2275923d09d7fbaf9a31202b4 [2025-03-08 08:47:04,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 08:47:04,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 08:47:04,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 08:47:04,626 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 08:47:04,626 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 08:47:04,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c [2025-03-08 08:47:05,828 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d494c791f/1ebf0e95990e40e9a5e4ba23d56b504e/FLAG1f95a601e [2025-03-08 08:47:06,125 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 08:47:06,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c [2025-03-08 08:47:06,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d494c791f/1ebf0e95990e40e9a5e4ba23d56b504e/FLAG1f95a601e [2025-03-08 08:47:06,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d494c791f/1ebf0e95990e40e9a5e4ba23d56b504e [2025-03-08 08:47:06,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 08:47:06,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 08:47:06,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 08:47:06,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 08:47:06,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 08:47:06,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a977924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06, skipping insertion in model container [2025-03-08 08:47:06,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 08:47:06,531 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c[1249,1262] [2025-03-08 08:47:06,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 08:47:06,641 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 08:47:06,649 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c[1249,1262] [2025-03-08 08:47:06,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 08:47:06,714 INFO L204 MainTranslator]: Completed translation [2025-03-08 08:47:06,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06 WrapperNode [2025-03-08 08:47:06,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 08:47:06,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 08:47:06,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 08:47:06,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 08:47:06,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,787 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 589 [2025-03-08 08:47:06,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 08:47:06,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 08:47:06,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 08:47:06,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 08:47:06,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,832 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 08:47:06,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 08:47:06,873 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 08:47:06,873 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 08:47:06,873 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 08:47:06,874 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (1/1) ... [2025-03-08 08:47:06,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 08:47:06,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 08:47:06,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 08:47:06,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 08:47:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 08:47:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 08:47:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 08:47:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 08:47:07,026 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 08:47:07,027 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 08:47:07,818 INFO L? ?]: Removed 347 outVars from TransFormulas that were not future-live. [2025-03-08 08:47:07,818 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 08:47:07,864 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 08:47:07,865 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 08:47:07,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:47:07 BoogieIcfgContainer [2025-03-08 08:47:07,865 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 08:47:07,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 08:47:07,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 08:47:07,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 08:47:07,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 08:47:06" (1/3) ... [2025-03-08 08:47:07,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163fe8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:47:07, skipping insertion in model container [2025-03-08 08:47:07,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:06" (2/3) ... [2025-03-08 08:47:07,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163fe8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:47:07, skipping insertion in model container [2025-03-08 08:47:07,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:47:07" (3/3) ... [2025-03-08 08:47:07,872 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Spinner.c [2025-03-08 08:47:07,886 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 08:47:07,888 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_Spinner.c that has 1 procedures, 162 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 08:47:07,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 08:47:07,953 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;@4fd3ed6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 08:47:07,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 08:47:07,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 160 states have (on average 1.49375) internal successors, (239), 161 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:07,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-08 08:47:07,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:07,966 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] [2025-03-08 08:47:07,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:07,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:07,971 INFO L85 PathProgramCache]: Analyzing trace with hash 972897395, now seen corresponding path program 1 times [2025-03-08 08:47:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:07,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587238270] [2025-03-08 08:47:07,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:07,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:08,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-08 08:47:08,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-08 08:47:08,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:08,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:08,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:08,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587238270] [2025-03-08 08:47:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587238270] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:08,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:08,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 08:47:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234228421] [2025-03-08 08:47:08,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:08,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 08:47:08,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:08,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 08:47:08,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 08:47:08,642 INFO L87 Difference]: Start difference. First operand has 162 states, 160 states have (on average 1.49375) internal successors, (239), 161 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:08,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:08,782 INFO L93 Difference]: Finished difference Result 309 states and 459 transitions. [2025-03-08 08:47:08,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 08:47:08,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2025-03-08 08:47:08,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:08,790 INFO L225 Difference]: With dead ends: 309 [2025-03-08 08:47:08,790 INFO L226 Difference]: Without dead ends: 161 [2025-03-08 08:47:08,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 08:47:08,794 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:08,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 580 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:08,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-08 08:47:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2025-03-08 08:47:08,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.48125) internal successors, (237), 160 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:08,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 237 transitions. [2025-03-08 08:47:08,831 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 237 transitions. Word has length 35 [2025-03-08 08:47:08,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:08,831 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 237 transitions. [2025-03-08 08:47:08,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:08,831 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 237 transitions. [2025-03-08 08:47:08,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-08 08:47:08,832 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:08,832 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] [2025-03-08 08:47:08,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 08:47:08,832 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:08,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:08,833 INFO L85 PathProgramCache]: Analyzing trace with hash 99727479, now seen corresponding path program 1 times [2025-03-08 08:47:08,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:08,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512875525] [2025-03-08 08:47:08,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:08,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-08 08:47:08,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-08 08:47:08,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:08,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:09,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512875525] [2025-03-08 08:47:09,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512875525] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:09,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:09,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 08:47:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810081318] [2025-03-08 08:47:09,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:09,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 08:47:09,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:09,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 08:47:09,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 08:47:09,019 INFO L87 Difference]: Start difference. First operand 161 states and 237 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:09,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:09,112 INFO L93 Difference]: Finished difference Result 310 states and 457 transitions. [2025-03-08 08:47:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 08:47:09,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2025-03-08 08:47:09,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:09,113 INFO L225 Difference]: With dead ends: 310 [2025-03-08 08:47:09,114 INFO L226 Difference]: Without dead ends: 163 [2025-03-08 08:47:09,115 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 [2025-03-08 08:47:09,116 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:09,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 577 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-08 08:47:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2025-03-08 08:47:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4753086419753085) internal successors, (239), 162 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:09,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 239 transitions. [2025-03-08 08:47:09,130 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 239 transitions. Word has length 36 [2025-03-08 08:47:09,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:09,130 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 239 transitions. [2025-03-08 08:47:09,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:09,131 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2025-03-08 08:47:09,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-08 08:47:09,131 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:09,131 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] [2025-03-08 08:47:09,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 08:47:09,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:09,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash 728093934, now seen corresponding path program 1 times [2025-03-08 08:47:09,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:09,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046968960] [2025-03-08 08:47:09,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:09,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:09,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-08 08:47:09,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-08 08:47:09,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:09,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:09,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046968960] [2025-03-08 08:47:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046968960] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:09,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:09,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 08:47:09,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942336863] [2025-03-08 08:47:09,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:09,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 08:47:09,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:09,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 08:47:09,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 08:47:09,741 INFO L87 Difference]: Start difference. First operand 163 states and 239 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:10,001 INFO L93 Difference]: Finished difference Result 356 states and 524 transitions. [2025-03-08 08:47:10,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 08:47:10,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2025-03-08 08:47:10,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:10,006 INFO L225 Difference]: With dead ends: 356 [2025-03-08 08:47:10,006 INFO L226 Difference]: Without dead ends: 207 [2025-03-08 08:47:10,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 08:47:10,008 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 54 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:10,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1493 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 08:47:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-03-08 08:47:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 190. [2025-03-08 08:47:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 189 states have (on average 1.4761904761904763) internal successors, (279), 189 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 279 transitions. [2025-03-08 08:47:10,018 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 279 transitions. Word has length 37 [2025-03-08 08:47:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:10,018 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 279 transitions. [2025-03-08 08:47:10,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 279 transitions. [2025-03-08 08:47:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-08 08:47:10,019 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:10,019 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] [2025-03-08 08:47:10,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 08:47:10,019 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:10,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1310529156, now seen corresponding path program 1 times [2025-03-08 08:47:10,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:10,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150791067] [2025-03-08 08:47:10,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:10,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:10,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-08 08:47:10,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-08 08:47:10,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:10,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:10,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:10,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150791067] [2025-03-08 08:47:10,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150791067] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:10,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:10,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 08:47:10,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667655315] [2025-03-08 08:47:10,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:10,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 08:47:10,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:10,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 08:47:10,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 08:47:10,414 INFO L87 Difference]: Start difference. First operand 190 states and 279 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:10,481 INFO L93 Difference]: Finished difference Result 339 states and 498 transitions. [2025-03-08 08:47:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 08:47:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2025-03-08 08:47:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:10,483 INFO L225 Difference]: With dead ends: 339 [2025-03-08 08:47:10,483 INFO L226 Difference]: Without dead ends: 163 [2025-03-08 08:47:10,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 08:47:10,484 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 2 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:10,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 383 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:10,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-08 08:47:10,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2025-03-08 08:47:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4691358024691359) internal successors, (238), 162 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 238 transitions. [2025-03-08 08:47:10,488 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 238 transitions. Word has length 38 [2025-03-08 08:47:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:10,488 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 238 transitions. [2025-03-08 08:47:10,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 238 transitions. [2025-03-08 08:47:10,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-08 08:47:10,489 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:10,489 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] [2025-03-08 08:47:10,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 08:47:10,493 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:10,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash -122438236, now seen corresponding path program 1 times [2025-03-08 08:47:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50719489] [2025-03-08 08:47:10,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:10,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:10,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-08 08:47:10,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-08 08:47:10,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:10,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:10,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:10,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:10,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50719489] [2025-03-08 08:47:10,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50719489] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:10,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:10,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 08:47:10,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566417149] [2025-03-08 08:47:10,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:10,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 08:47:10,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:10,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 08:47:10,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 08:47:10,757 INFO L87 Difference]: Start difference. First operand 163 states and 238 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:10,927 INFO L93 Difference]: Finished difference Result 325 states and 475 transitions. [2025-03-08 08:47:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 08:47:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2025-03-08 08:47:10,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:10,929 INFO L225 Difference]: With dead ends: 325 [2025-03-08 08:47:10,929 INFO L226 Difference]: Without dead ends: 176 [2025-03-08 08:47:10,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 08:47:10,930 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 12 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:10,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 933 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 08:47:10,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-08 08:47:10,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 171. [2025-03-08 08:47:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.464705882352941) internal successors, (249), 170 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 249 transitions. [2025-03-08 08:47:10,934 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 249 transitions. Word has length 38 [2025-03-08 08:47:10,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:10,935 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 249 transitions. [2025-03-08 08:47:10,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 249 transitions. [2025-03-08 08:47:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-08 08:47:10,936 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:10,936 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] [2025-03-08 08:47:10,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 08:47:10,936 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:10,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:10,936 INFO L85 PathProgramCache]: Analyzing trace with hash -421542805, now seen corresponding path program 1 times [2025-03-08 08:47:10,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:10,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170711128] [2025-03-08 08:47:10,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:10,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:10,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-08 08:47:10,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-08 08:47:10,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:10,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:11,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:11,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170711128] [2025-03-08 08:47:11,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170711128] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:11,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:11,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 08:47:11,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794015014] [2025-03-08 08:47:11,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:11,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 08:47:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:11,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 08:47:11,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 08:47:11,123 INFO L87 Difference]: Start difference. First operand 171 states and 249 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:11,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:11,236 INFO L93 Difference]: Finished difference Result 332 states and 484 transitions. [2025-03-08 08:47:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 08:47:11,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2025-03-08 08:47:11,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:11,238 INFO L225 Difference]: With dead ends: 332 [2025-03-08 08:47:11,238 INFO L226 Difference]: Without dead ends: 175 [2025-03-08 08:47:11,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 08:47:11,238 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 209 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:11,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 572 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:11,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-08 08:47:11,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2025-03-08 08:47:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.4566473988439306) internal successors, (252), 173 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 252 transitions. [2025-03-08 08:47:11,247 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 252 transitions. Word has length 39 [2025-03-08 08:47:11,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:11,247 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 252 transitions. [2025-03-08 08:47:11,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 252 transitions. [2025-03-08 08:47:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-08 08:47:11,248 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:11,248 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] [2025-03-08 08:47:11,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 08:47:11,249 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:11,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1826741369, now seen corresponding path program 1 times [2025-03-08 08:47:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:11,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153995743] [2025-03-08 08:47:11,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:11,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:11,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-08 08:47:11,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-08 08:47:11,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:11,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:11,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153995743] [2025-03-08 08:47:11,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153995743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:11,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:11,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 08:47:11,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415914243] [2025-03-08 08:47:11,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:11,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 08:47:11,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:11,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 08:47:11,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-08 08:47:11,621 INFO L87 Difference]: Start difference. First operand 174 states and 252 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:11,862 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2025-03-08 08:47:11,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 08:47:11,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2025-03-08 08:47:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:11,864 INFO L225 Difference]: With dead ends: 367 [2025-03-08 08:47:11,864 INFO L226 Difference]: Without dead ends: 207 [2025-03-08 08:47:11,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-08 08:47:11,865 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 21 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:11,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1455 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 08:47:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2025-03-08 08:47:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 202. [2025-03-08 08:47:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.4477611940298507) internal successors, (291), 201 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 291 transitions. [2025-03-08 08:47:11,869 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 291 transitions. Word has length 40 [2025-03-08 08:47:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:11,870 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 291 transitions. [2025-03-08 08:47:11,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 291 transitions. [2025-03-08 08:47:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-08 08:47:11,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:11,872 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] [2025-03-08 08:47:11,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 08:47:11,872 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:11,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:11,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1705437599, now seen corresponding path program 1 times [2025-03-08 08:47:11,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:11,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311689984] [2025-03-08 08:47:11,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:11,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:11,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-08 08:47:11,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-08 08:47:11,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:11,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:12,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:12,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311689984] [2025-03-08 08:47:12,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311689984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:12,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:12,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-08 08:47:12,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581498611] [2025-03-08 08:47:12,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:12,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 08:47:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:12,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 08:47:12,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-03-08 08:47:12,599 INFO L87 Difference]: Start difference. First operand 202 states and 291 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:13,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:13,138 INFO L93 Difference]: Finished difference Result 407 states and 585 transitions. [2025-03-08 08:47:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 08:47:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2025-03-08 08:47:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:13,140 INFO L225 Difference]: With dead ends: 407 [2025-03-08 08:47:13,140 INFO L226 Difference]: Without dead ends: 219 [2025-03-08 08:47:13,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2025-03-08 08:47:13,141 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 54 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:13,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2102 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 08:47:13,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-08 08:47:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 214. [2025-03-08 08:47:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.4460093896713615) internal successors, (308), 213 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 308 transitions. [2025-03-08 08:47:13,148 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 308 transitions. Word has length 40 [2025-03-08 08:47:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:13,148 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 308 transitions. [2025-03-08 08:47:13,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 308 transitions. [2025-03-08 08:47:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-08 08:47:13,150 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:13,150 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] [2025-03-08 08:47:13,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 08:47:13,150 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:13,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2077018484, now seen corresponding path program 1 times [2025-03-08 08:47:13,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:13,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423805070] [2025-03-08 08:47:13,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:13,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:13,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-08 08:47:13,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-08 08:47:13,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:13,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423805070] [2025-03-08 08:47:13,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423805070] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:13,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 08:47:13,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165745586] [2025-03-08 08:47:13,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:13,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 08:47:13,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:13,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 08:47:13,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 08:47:13,533 INFO L87 Difference]: Start difference. First operand 214 states and 308 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:13,818 INFO L93 Difference]: Finished difference Result 419 states and 601 transitions. [2025-03-08 08:47:13,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 08:47:13,818 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2025-03-08 08:47:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:13,819 INFO L225 Difference]: With dead ends: 419 [2025-03-08 08:47:13,819 INFO L226 Difference]: Without dead ends: 219 [2025-03-08 08:47:13,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 08:47:13,820 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 45 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:13,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1615 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 08:47:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-08 08:47:13,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 212. [2025-03-08 08:47:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 1.4454976303317535) internal successors, (305), 211 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2025-03-08 08:47:13,828 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 40 [2025-03-08 08:47:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:13,829 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2025-03-08 08:47:13,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2025-03-08 08:47:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-08 08:47:13,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:13,829 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] [2025-03-08 08:47:13,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 08:47:13,829 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:13,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 286677802, now seen corresponding path program 1 times [2025-03-08 08:47:13,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:13,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129652311] [2025-03-08 08:47:13,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:13,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:13,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-08 08:47:13,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-08 08:47:13,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:13,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:14,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:14,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:14,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129652311] [2025-03-08 08:47:14,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129652311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:14,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:14,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 08:47:14,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87203055] [2025-03-08 08:47:14,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:14,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 08:47:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:14,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 08:47:14,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 08:47:14,203 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:14,352 INFO L93 Difference]: Finished difference Result 418 states and 603 transitions. [2025-03-08 08:47:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 08:47:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2025-03-08 08:47:14,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:14,353 INFO L225 Difference]: With dead ends: 418 [2025-03-08 08:47:14,353 INFO L226 Difference]: Without dead ends: 220 [2025-03-08 08:47:14,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 08:47:14,354 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 13 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:14,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 905 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2025-03-08 08:47:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 208. [2025-03-08 08:47:14,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.4396135265700483) internal successors, (298), 207 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 298 transitions. [2025-03-08 08:47:14,362 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 298 transitions. Word has length 40 [2025-03-08 08:47:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:14,363 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 298 transitions. [2025-03-08 08:47:14,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:14,363 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 298 transitions. [2025-03-08 08:47:14,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-08 08:47:14,363 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:14,363 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] [2025-03-08 08:47:14,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 08:47:14,364 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:14,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:14,364 INFO L85 PathProgramCache]: Analyzing trace with hash -348252221, now seen corresponding path program 1 times [2025-03-08 08:47:14,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:14,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734865688] [2025-03-08 08:47:14,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:14,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:14,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-08 08:47:14,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-08 08:47:14,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:14,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:14,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:14,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734865688] [2025-03-08 08:47:14,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734865688] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:14,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:14,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 08:47:14,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299035199] [2025-03-08 08:47:14,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:14,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 08:47:14,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:14,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 08:47:14,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-08 08:47:14,758 INFO L87 Difference]: Start difference. First operand 208 states and 298 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:15,092 INFO L93 Difference]: Finished difference Result 541 states and 769 transitions. [2025-03-08 08:47:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 08:47:15,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2025-03-08 08:47:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:15,094 INFO L225 Difference]: With dead ends: 541 [2025-03-08 08:47:15,094 INFO L226 Difference]: Without dead ends: 347 [2025-03-08 08:47:15,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2025-03-08 08:47:15,095 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 486 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:15,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1430 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 08:47:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2025-03-08 08:47:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 223. [2025-03-08 08:47:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.436936936936937) internal successors, (319), 222 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 319 transitions. [2025-03-08 08:47:15,102 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 319 transitions. Word has length 41 [2025-03-08 08:47:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:15,102 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 319 transitions. [2025-03-08 08:47:15,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:15,107 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 319 transitions. [2025-03-08 08:47:15,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-08 08:47:15,107 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:15,107 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] [2025-03-08 08:47:15,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 08:47:15,108 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:15,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash 901013255, now seen corresponding path program 1 times [2025-03-08 08:47:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:15,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744253262] [2025-03-08 08:47:15,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:15,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:15,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-08 08:47:15,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-08 08:47:15,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:15,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:15,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:15,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:15,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744253262] [2025-03-08 08:47:15,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744253262] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:15,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:15,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 08:47:15,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844057322] [2025-03-08 08:47:15,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:15,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 08:47:15,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:15,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 08:47:15,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 08:47:15,417 INFO L87 Difference]: Start difference. First operand 223 states and 319 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:15,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:15,602 INFO L93 Difference]: Finished difference Result 540 states and 770 transitions. [2025-03-08 08:47:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 08:47:15,602 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2025-03-08 08:47:15,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:15,604 INFO L225 Difference]: With dead ends: 540 [2025-03-08 08:47:15,604 INFO L226 Difference]: Without dead ends: 346 [2025-03-08 08:47:15,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-03-08 08:47:15,605 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 325 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:15,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 911 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-03-08 08:47:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 271. [2025-03-08 08:47:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.4296296296296296) internal successors, (386), 270 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 386 transitions. [2025-03-08 08:47:15,620 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 386 transitions. Word has length 42 [2025-03-08 08:47:15,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:15,620 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 386 transitions. [2025-03-08 08:47:15,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 386 transitions. [2025-03-08 08:47:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-08 08:47:15,621 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:15,621 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] [2025-03-08 08:47:15,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 08:47:15,621 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:15,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:15,622 INFO L85 PathProgramCache]: Analyzing trace with hash 955821511, now seen corresponding path program 1 times [2025-03-08 08:47:15,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:15,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830438768] [2025-03-08 08:47:15,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:15,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:15,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-08 08:47:15,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-08 08:47:15,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:15,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:16,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:16,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830438768] [2025-03-08 08:47:16,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830438768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:16,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:16,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 08:47:16,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844169406] [2025-03-08 08:47:16,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:16,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 08:47:16,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:16,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 08:47:16,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 08:47:16,003 INFO L87 Difference]: Start difference. First operand 271 states and 386 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:16,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:16,116 INFO L93 Difference]: Finished difference Result 510 states and 722 transitions. [2025-03-08 08:47:16,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 08:47:16,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2025-03-08 08:47:16,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:16,117 INFO L225 Difference]: With dead ends: 510 [2025-03-08 08:47:16,117 INFO L226 Difference]: Without dead ends: 299 [2025-03-08 08:47:16,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 08:47:16,118 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 288 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:16,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 556 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2025-03-08 08:47:16,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 264. [2025-03-08 08:47:16,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.4220532319391634) internal successors, (374), 263 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:16,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 374 transitions. [2025-03-08 08:47:16,125 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 374 transitions. Word has length 42 [2025-03-08 08:47:16,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:16,125 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 374 transitions. [2025-03-08 08:47:16,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 374 transitions. [2025-03-08 08:47:16,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-08 08:47:16,126 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:16,126 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] [2025-03-08 08:47:16,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 08:47:16,126 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:16,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash -177756103, now seen corresponding path program 1 times [2025-03-08 08:47:16,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:16,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743762413] [2025-03-08 08:47:16,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:16,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:16,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-08 08:47:16,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-08 08:47:16,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:16,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:16,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:16,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743762413] [2025-03-08 08:47:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743762413] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:16,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:16,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-08 08:47:16,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489482405] [2025-03-08 08:47:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:16,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-08 08:47:16,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:16,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-08 08:47:16,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2025-03-08 08:47:16,657 INFO L87 Difference]: Start difference. First operand 264 states and 374 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:17,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:17,137 INFO L93 Difference]: Finished difference Result 489 states and 693 transitions. [2025-03-08 08:47:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-08 08:47:17,137 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2025-03-08 08:47:17,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:17,139 INFO L225 Difference]: With dead ends: 489 [2025-03-08 08:47:17,139 INFO L226 Difference]: Without dead ends: 295 [2025-03-08 08:47:17,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2025-03-08 08:47:17,140 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 19 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:17,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2376 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 08:47:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2025-03-08 08:47:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 283. [2025-03-08 08:47:17,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.4184397163120568) internal successors, (400), 282 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 400 transitions. [2025-03-08 08:47:17,148 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 400 transitions. Word has length 43 [2025-03-08 08:47:17,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:17,148 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 400 transitions. [2025-03-08 08:47:17,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 400 transitions. [2025-03-08 08:47:17,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-08 08:47:17,149 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:17,149 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] [2025-03-08 08:47:17,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 08:47:17,150 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:17,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash -299059873, now seen corresponding path program 1 times [2025-03-08 08:47:17,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:17,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393779511] [2025-03-08 08:47:17,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:17,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-08 08:47:17,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-08 08:47:17,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:17,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:17,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393779511] [2025-03-08 08:47:17,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393779511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:17,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:17,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 08:47:17,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974345313] [2025-03-08 08:47:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:17,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 08:47:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:17,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 08:47:17,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 08:47:17,457 INFO L87 Difference]: Start difference. First operand 283 states and 400 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:17,561 INFO L93 Difference]: Finished difference Result 537 states and 756 transitions. [2025-03-08 08:47:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 08:47:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2025-03-08 08:47:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:17,562 INFO L225 Difference]: With dead ends: 537 [2025-03-08 08:47:17,562 INFO L226 Difference]: Without dead ends: 283 [2025-03-08 08:47:17,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 08:47:17,563 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 362 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:17,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 557 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2025-03-08 08:47:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 254. [2025-03-08 08:47:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4189723320158103) internal successors, (359), 253 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 359 transitions. [2025-03-08 08:47:17,568 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 359 transitions. Word has length 43 [2025-03-08 08:47:17,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:17,569 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 359 transitions. [2025-03-08 08:47:17,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 359 transitions. [2025-03-08 08:47:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 08:47:17,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:17,569 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] [2025-03-08 08:47:17,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 08:47:17,569 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:17,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1152211571, now seen corresponding path program 1 times [2025-03-08 08:47:17,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:17,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306715851] [2025-03-08 08:47:17,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:17,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:17,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 08:47:17,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 08:47:17,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:17,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:18,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:18,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306715851] [2025-03-08 08:47:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306715851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:18,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:18,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2025-03-08 08:47:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118592745] [2025-03-08 08:47:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:18,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-08 08:47:18,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:18,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-08 08:47:18,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2025-03-08 08:47:18,497 INFO L87 Difference]: Start difference. First operand 254 states and 359 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:19,326 INFO L93 Difference]: Finished difference Result 533 states and 752 transitions. [2025-03-08 08:47:19,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-08 08:47:19,326 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-03-08 08:47:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:19,327 INFO L225 Difference]: With dead ends: 533 [2025-03-08 08:47:19,327 INFO L226 Difference]: Without dead ends: 329 [2025-03-08 08:47:19,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=938, Unknown=0, NotChecked=0, Total=1056 [2025-03-08 08:47:19,329 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 508 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:19,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 2594 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 08:47:19,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-08 08:47:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 267. [2025-03-08 08:47:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 1.413533834586466) internal successors, (376), 266 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 376 transitions. [2025-03-08 08:47:19,334 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 376 transitions. Word has length 44 [2025-03-08 08:47:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:19,334 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 376 transitions. [2025-03-08 08:47:19,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 376 transitions. [2025-03-08 08:47:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 08:47:19,335 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:19,335 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] [2025-03-08 08:47:19,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 08:47:19,335 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:19,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:19,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1030907801, now seen corresponding path program 1 times [2025-03-08 08:47:19,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:19,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044625781] [2025-03-08 08:47:19,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:19,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:19,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 08:47:19,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 08:47:19,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:19,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:19,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:19,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044625781] [2025-03-08 08:47:19,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044625781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:19,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:19,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 08:47:19,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478436702] [2025-03-08 08:47:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:19,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 08:47:19,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:19,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 08:47:19,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 08:47:19,614 INFO L87 Difference]: Start difference. First operand 267 states and 376 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:19,703 INFO L93 Difference]: Finished difference Result 506 states and 712 transitions. [2025-03-08 08:47:19,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 08:47:19,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-03-08 08:47:19,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:19,704 INFO L225 Difference]: With dead ends: 506 [2025-03-08 08:47:19,704 INFO L226 Difference]: Without dead ends: 275 [2025-03-08 08:47:19,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-08 08:47:19,706 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 224 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:19,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 559 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2025-03-08 08:47:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 271. [2025-03-08 08:47:19,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.4074074074074074) internal successors, (380), 270 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:19,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 380 transitions. [2025-03-08 08:47:19,711 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 380 transitions. Word has length 44 [2025-03-08 08:47:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:19,711 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 380 transitions. [2025-03-08 08:47:19,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:19,711 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 380 transitions. [2025-03-08 08:47:19,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 08:47:19,711 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:19,711 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] [2025-03-08 08:47:19,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 08:47:19,712 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:19,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:19,712 INFO L85 PathProgramCache]: Analyzing trace with hash -551880285, now seen corresponding path program 1 times [2025-03-08 08:47:19,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:19,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790903840] [2025-03-08 08:47:19,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:19,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:19,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 08:47:19,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 08:47:19,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:19,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:20,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:20,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:20,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790903840] [2025-03-08 08:47:20,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790903840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:20,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:20,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-03-08 08:47:20,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475500812] [2025-03-08 08:47:20,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:20,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-08 08:47:20,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:20,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-08 08:47:20,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2025-03-08 08:47:20,434 INFO L87 Difference]: Start difference. First operand 271 states and 380 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:21,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:21,118 INFO L93 Difference]: Finished difference Result 568 states and 795 transitions. [2025-03-08 08:47:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 08:47:21,119 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-03-08 08:47:21,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:21,120 INFO L225 Difference]: With dead ends: 568 [2025-03-08 08:47:21,120 INFO L226 Difference]: Without dead ends: 348 [2025-03-08 08:47:21,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=879, Unknown=0, NotChecked=0, Total=992 [2025-03-08 08:47:21,121 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 490 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:21,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 2341 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 08:47:21,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-03-08 08:47:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 271. [2025-03-08 08:47:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.4037037037037037) internal successors, (379), 270 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 379 transitions. [2025-03-08 08:47:21,127 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 379 transitions. Word has length 44 [2025-03-08 08:47:21,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:21,127 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 379 transitions. [2025-03-08 08:47:21,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 379 transitions. [2025-03-08 08:47:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-08 08:47:21,127 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:21,127 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] [2025-03-08 08:47:21,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 08:47:21,128 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:21,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash -673184055, now seen corresponding path program 1 times [2025-03-08 08:47:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:21,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988660315] [2025-03-08 08:47:21,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:21,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-08 08:47:21,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-08 08:47:21,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:21,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:21,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:21,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988660315] [2025-03-08 08:47:21,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988660315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:21,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:21,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-08 08:47:21,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100880585] [2025-03-08 08:47:21,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:21,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-08 08:47:21,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:21,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-08 08:47:21,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2025-03-08 08:47:21,630 INFO L87 Difference]: Start difference. First operand 271 states and 379 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:22,055 INFO L93 Difference]: Finished difference Result 532 states and 743 transitions. [2025-03-08 08:47:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 08:47:22,056 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-03-08 08:47:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:22,057 INFO L225 Difference]: With dead ends: 532 [2025-03-08 08:47:22,057 INFO L226 Difference]: Without dead ends: 303 [2025-03-08 08:47:22,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2025-03-08 08:47:22,058 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 369 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:22,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1963 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 08:47:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-08 08:47:22,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 271. [2025-03-08 08:47:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.4) internal successors, (378), 270 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 378 transitions. [2025-03-08 08:47:22,064 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 378 transitions. Word has length 44 [2025-03-08 08:47:22,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:22,064 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 378 transitions. [2025-03-08 08:47:22,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 378 transitions. [2025-03-08 08:47:22,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-08 08:47:22,065 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:22,066 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] [2025-03-08 08:47:22,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 08:47:22,066 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:22,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:22,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1603134018, now seen corresponding path program 1 times [2025-03-08 08:47:22,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:22,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623168947] [2025-03-08 08:47:22,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:22,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:22,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-08 08:47:22,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-08 08:47:22,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:22,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:22,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 08:47:22,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623168947] [2025-03-08 08:47:22,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623168947] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:22,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:22,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 08:47:22,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287327789] [2025-03-08 08:47:22,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:22,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 08:47:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 08:47:22,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 08:47:22,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 08:47:22,184 INFO L87 Difference]: Start difference. First operand 271 states and 378 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:22,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:22,277 INFO L93 Difference]: Finished difference Result 526 states and 733 transitions. [2025-03-08 08:47:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 08:47:22,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2025-03-08 08:47:22,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:22,279 INFO L225 Difference]: With dead ends: 526 [2025-03-08 08:47:22,279 INFO L226 Difference]: Without dead ends: 280 [2025-03-08 08:47:22,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-08 08:47:22,280 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 70 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:22,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 739 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 08:47:22,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2025-03-08 08:47:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 251. [2025-03-08 08:47:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.404) internal successors, (351), 250 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:22,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 351 transitions. [2025-03-08 08:47:22,287 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 351 transitions. Word has length 45 [2025-03-08 08:47:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:22,287 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 351 transitions. [2025-03-08 08:47:22,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 351 transitions. [2025-03-08 08:47:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-08 08:47:22,290 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:22,290 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] [2025-03-08 08:47:22,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 08:47:22,290 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:22,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:22,291 INFO L85 PathProgramCache]: Analyzing trace with hash 969046321, now seen corresponding path program 1 times [2025-03-08 08:47:22,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 08:47:22,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499272660] [2025-03-08 08:47:22,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:22,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 08:47:22,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 08:47:22,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 08:47:22,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:22,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 08:47:22,324 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 08:47:22,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-08 08:47:22,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-08 08:47:22,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:22,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 08:47:22,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 08:47:22,385 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 08:47:22,386 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 08:47:22,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 08:47:22,390 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 08:47:22,410 WARN L310 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2025-03-08 08:47:22,418 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 08:47:22,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 08:47:22 BoogieIcfgContainer [2025-03-08 08:47:22,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 08:47:22,425 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 08:47:22,425 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 08:47:22,425 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 08:47:22,426 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:47:07" (3/4) ... [2025-03-08 08:47:22,428 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 08:47:22,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 08:47:22,429 INFO L158 Benchmark]: Toolchain (without parser) took 16024.87ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 103.4MB in the beginning and 296.7MB in the end (delta: -193.3MB). Peak memory consumption was 174.0MB. Max. memory is 16.1GB. [2025-03-08 08:47:22,429 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 08:47:22,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.41ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 84.9MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 08:47:22,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.99ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 73.4MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 08:47:22,430 INFO L158 Benchmark]: Boogie Preprocessor took 82.65ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 68.1MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 08:47:22,430 INFO L158 Benchmark]: IcfgBuilder took 992.66ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 54.8MB in the end (delta: 13.3MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2025-03-08 08:47:22,430 INFO L158 Benchmark]: TraceAbstraction took 14553.28ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 54.1MB in the beginning and 296.8MB in the end (delta: -242.7MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2025-03-08 08:47:22,430 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 503.3MB. Free memory was 296.8MB in the beginning and 296.7MB in the end (delta: 105.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 08:47:22,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.41ms. Allocated memory is still 142.6MB. Free memory was 103.4MB in the beginning and 84.9MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.99ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 73.4MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.65ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 68.1MB in the end (delta: 5.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 992.66ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 54.8MB in the end (delta: 13.3MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14553.28ms. Allocated memory was 142.6MB in the beginning and 503.3MB in the end (delta: 360.7MB). Free memory was 54.1MB in the beginning and 296.8MB in the end (delta: -242.7MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 503.3MB. Free memory was 296.8MB in the beginning and 296.7MB in the end (delta: 105.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 153, overapproximation of bitwiseOr at line 127, overapproximation of bitwiseOr at line 124, overapproximation of bitwiseAnd at line 161. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 32); [L33] const SORT_5 msb_SORT_5 = (SORT_5)1 << (32 - 1); [L35] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 31); [L36] const SORT_47 msb_SORT_47 = (SORT_47)1 << (31 - 1); [L38] const SORT_57 mask_SORT_57 = (SORT_57)-1 >> (sizeof(SORT_57) * 8 - 30); [L39] const SORT_57 msb_SORT_57 = (SORT_57)1 << (30 - 1); [L41] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 29); [L42] const SORT_59 msb_SORT_59 = (SORT_59)1 << (29 - 1); [L44] const SORT_65 mask_SORT_65 = (SORT_65)-1 >> (sizeof(SORT_65) * 8 - 2); [L45] const SORT_65 msb_SORT_65 = (SORT_65)1 << (2 - 1); [L47] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 28); [L48] const SORT_71 msb_SORT_71 = (SORT_71)1 << (28 - 1); [L50] const SORT_73 mask_SORT_73 = (SORT_73)-1 >> (sizeof(SORT_73) * 8 - 26); [L51] const SORT_73 msb_SORT_73 = (SORT_73)1 << (26 - 1); [L53] const SORT_79 mask_SORT_79 = (SORT_79)-1 >> (sizeof(SORT_79) * 8 - 4); [L54] const SORT_79 msb_SORT_79 = (SORT_79)1 << (4 - 1); [L56] const SORT_85 mask_SORT_85 = (SORT_85)-1 >> (sizeof(SORT_85) * 8 - 24); [L57] const SORT_85 msb_SORT_85 = (SORT_85)1 << (24 - 1); [L59] const SORT_87 mask_SORT_87 = (SORT_87)-1 >> (sizeof(SORT_87) * 8 - 20); [L60] const SORT_87 msb_SORT_87 = (SORT_87)1 << (20 - 1); [L62] const SORT_93 mask_SORT_93 = (SORT_93)-1 >> (sizeof(SORT_93) * 8 - 8); [L63] const SORT_93 msb_SORT_93 = (SORT_93)1 << (8 - 1); [L65] const SORT_99 mask_SORT_99 = (SORT_99)-1 >> (sizeof(SORT_99) * 8 - 16); [L66] const SORT_99 msb_SORT_99 = (SORT_99)1 << (16 - 1); [L68] const SORT_5 var_8 = 0; [L69] const SORT_3 var_19 = 0; [L70] const SORT_3 var_40 = 1; [L72] SORT_1 input_2; [L73] SORT_3 input_4; [L74] SORT_5 input_6; [L75] SORT_3 input_7; [L77] EXPR __VERIFIER_nondet_uint() & mask_SORT_5 VAL [mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, var_19=0, var_40=1, var_8=0] [L77] SORT_5 state_9 = __VERIFIER_nondet_uint() & mask_SORT_5; [L78] EXPR __VERIFIER_nondet_uint() & mask_SORT_5 VAL [mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, var_19=0, var_40=1, var_8=0] [L78] SORT_5 state_13 = __VERIFIER_nondet_uint() & mask_SORT_5; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, var_19=0, var_40=1, var_8=0] [L79] SORT_3 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L81] SORT_5 init_10_arg_1 = var_8; [L82] state_9 = init_10_arg_1 [L83] SORT_5 init_14_arg_1 = var_8; [L84] state_13 = init_14_arg_1 [L85] SORT_3 init_21_arg_1 = var_19; [L86] state_20 = init_21_arg_1 VAL [mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L89] input_2 = __VERIFIER_nondet_uchar() [L90] input_4 = __VERIFIER_nondet_uchar() [L91] input_6 = __VERIFIER_nondet_uint() [L92] input_7 = __VERIFIER_nondet_uchar() [L93] EXPR input_7 & mask_SORT_3 VAL [mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L93] input_7 = input_7 & mask_SORT_3 [L96] SORT_5 var_11_arg_0 = state_9; [L97] SORT_5 var_11_arg_1 = var_8; [L98] SORT_3 var_11 = var_11_arg_0 == var_11_arg_1; [L99] SORT_3 var_12_arg_0 = var_11; [L100] SORT_3 var_12 = ~var_12_arg_0; [L101] SORT_5 var_15_arg_0 = state_13; [L102] SORT_5 var_15_arg_1 = var_8; [L103] SORT_3 var_15 = var_15_arg_0 == var_15_arg_1; [L104] SORT_3 var_16_arg_0 = var_15; [L105] SORT_3 var_16 = ~var_16_arg_0; [L106] SORT_3 var_17_arg_0 = var_12; [L107] SORT_3 var_17_arg_1 = var_16; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_17_arg_0=-2, var_17_arg_1=-2, var_40=1, var_8=0] [L108] EXPR var_17_arg_0 & var_17_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L108] SORT_3 var_17 = var_17_arg_0 & var_17_arg_1; [L109] SORT_3 var_18_arg_0 = var_17; [L110] SORT_3 var_18 = ~var_18_arg_0; [L111] SORT_3 var_22_arg_0 = state_20; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_18=-255, var_22_arg_0=0, var_40=1, var_8=0] [L112] EXPR var_22_arg_0 & mask_SORT_3 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_18=-255, var_40=1, var_8=0] [L112] var_22_arg_0 = var_22_arg_0 & mask_SORT_3 [L113] SORT_5 var_22 = var_22_arg_0; [L114] SORT_5 var_23_arg_0 = var_22; [L115] SORT_5 var_23_arg_1 = var_8; [L116] SORT_3 var_23 = var_23_arg_0 == var_23_arg_1; [L117] SORT_5 var_24_arg_0 = state_9; [L118] SORT_5 var_24_arg_1 = var_8; [L119] SORT_3 var_24 = var_24_arg_0 == var_24_arg_1; [L120] SORT_3 var_25_arg_0 = var_24; [L121] SORT_3 var_25 = ~var_25_arg_0; [L122] SORT_3 var_26_arg_0 = var_23; [L123] SORT_3 var_26_arg_1 = var_25; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_18=-255, var_26_arg_0=1, var_26_arg_1=-2, var_40=1, var_8=0] [L124] EXPR var_26_arg_0 | var_26_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_18=-255, var_40=1, var_8=0] [L124] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L125] SORT_3 var_27_arg_0 = var_18; [L126] SORT_3 var_27_arg_1 = var_26; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27_arg_0=-255, var_27_arg_1=255, var_40=1, var_8=0] [L127] EXPR var_27_arg_0 | var_27_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L127] SORT_3 var_27 = var_27_arg_0 | var_27_arg_1; [L128] SORT_5 var_28_arg_0 = state_9; [L129] SORT_5 var_28_arg_1 = var_8; [L130] SORT_3 var_28 = var_28_arg_0 == var_28_arg_1; [L131] SORT_5 var_29_arg_0 = state_13; [L132] SORT_5 var_29_arg_1 = var_8; [L133] SORT_3 var_29 = var_29_arg_0 == var_29_arg_1; [L134] SORT_3 var_30_arg_0 = var_28; [L135] SORT_3 var_30_arg_1 = var_29; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_30_arg_0=1, var_30_arg_1=1, var_40=1, var_8=0] [L136] EXPR var_30_arg_0 & var_30_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_40=1, var_8=0] [L136] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; [L137] SORT_3 var_31_arg_0 = var_30; [L138] SORT_3 var_31 = ~var_31_arg_0; [L139] SORT_3 var_32_arg_0 = state_20; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_31=-2, var_32_arg_0=0, var_40=1, var_8=0] [L140] EXPR var_32_arg_0 & mask_SORT_3 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_31=-2, var_40=1, var_8=0] [L140] var_32_arg_0 = var_32_arg_0 & mask_SORT_3 [L141] SORT_5 var_32 = var_32_arg_0; [L142] SORT_5 var_33_arg_0 = var_32; [L143] SORT_5 var_33_arg_1 = var_8; [L144] SORT_3 var_33 = var_33_arg_0 == var_33_arg_1; [L145] SORT_5 var_34_arg_0 = state_9; [L146] SORT_5 var_34_arg_1 = var_8; [L147] SORT_3 var_34 = var_34_arg_0 == var_34_arg_1; [L148] SORT_3 var_35_arg_0 = var_33; [L149] SORT_3 var_35_arg_1 = var_34; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_31=-2, var_35_arg_0=1, var_35_arg_1=1, var_40=1, var_8=0] [L150] EXPR var_35_arg_0 | var_35_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_31=-2, var_40=1, var_8=0] [L150] SORT_3 var_35 = var_35_arg_0 | var_35_arg_1; [L151] SORT_3 var_36_arg_0 = var_31; [L152] SORT_3 var_36_arg_1 = var_35; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_36_arg_0=-2, var_36_arg_1=1, var_40=1, var_8=0] [L153] EXPR var_36_arg_0 | var_36_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_27=256, var_40=1, var_8=0] [L153] SORT_3 var_36 = var_36_arg_0 | var_36_arg_1; [L154] SORT_3 var_37_arg_0 = var_27; [L155] SORT_3 var_37_arg_1 = var_36; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_37_arg_0=256, var_37_arg_1=254, var_40=1, var_8=0] [L156] EXPR var_37_arg_0 & var_37_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L156] SORT_3 var_37 = var_37_arg_0 & var_37_arg_1; [L157] SORT_3 var_41_arg_0 = var_37; [L158] SORT_3 var_41 = ~var_41_arg_0; [L159] SORT_3 var_42_arg_0 = var_40; [L160] SORT_3 var_42_arg_1 = var_41; VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_42_arg_0=1, var_42_arg_1=-1, var_8=0] [L161] EXPR var_42_arg_0 & var_42_arg_1 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L161] SORT_3 var_42 = var_42_arg_0 & var_42_arg_1; [L162] EXPR var_42 & mask_SORT_3 VAL [input_7=0, mask_SORT_3=1, mask_SORT_59=536870911, mask_SORT_5=-1, mask_SORT_65=3, mask_SORT_73=67108863, mask_SORT_79=15, mask_SORT_87=1048575, mask_SORT_93=255, mask_SORT_99=65535, state_13=0, state_20=0, state_9=0, var_40=1, var_8=0] [L162] var_42 = var_42 & mask_SORT_3 [L163] SORT_3 bad_43_arg_0 = var_42; [L164] CALL __VERIFIER_assert(!(bad_43_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 162 locations, 239 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.5s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3551 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3551 mSDsluCounter, 24641 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20978 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7922 IncrementalHoareTripleChecker+Invalid, 7941 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 3663 mSDtfsCounter, 7922 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=14, InterpolantAutomatonStates: 179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 531 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 795 ConstructedInterpolants, 0 QuantifiedInterpolants, 3661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 [2025-03-08 08:47:22,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c7f343ca08bbb19155b6fdcbbb14166f212aafb2275923d09d7fbaf9a31202b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 08:47:24,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 08:47:24,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2025-03-08 08:47:24,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 08:47:24,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 08:47:24,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 08:47:24,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 08:47:24,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 08:47:24,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 08:47:24,530 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 08:47:24,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 08:47:24,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 08:47:24,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 08:47:24,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 08:47:24,531 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 08:47:24,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 08:47:24,532 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 08:47:24,533 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 08:47:24,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 08:47:24,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 08:47:24,534 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> c7f343ca08bbb19155b6fdcbbb14166f212aafb2275923d09d7fbaf9a31202b4 [2025-03-08 08:47:24,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 08:47:24,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 08:47:24,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 08:47:24,775 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 08:47:24,775 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 08:47:24,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c [2025-03-08 08:47:26,011 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6173b8a/43eafff669de484a85aeab07763266cc/FLAGc630ab75e [2025-03-08 08:47:26,235 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 08:47:26,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c [2025-03-08 08:47:26,246 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6173b8a/43eafff669de484a85aeab07763266cc/FLAGc630ab75e [2025-03-08 08:47:26,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c6173b8a/43eafff669de484a85aeab07763266cc [2025-03-08 08:47:26,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 08:47:26,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 08:47:26,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 08:47:26,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 08:47:26,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 08:47:26,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aafaf77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26, skipping insertion in model container [2025-03-08 08:47:26,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,300 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 08:47:26,435 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c[1249,1262] [2025-03-08 08:47:26,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 08:47:26,526 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 08:47:26,534 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Spinner.c[1249,1262] [2025-03-08 08:47:26,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 08:47:26,608 INFO L204 MainTranslator]: Completed translation [2025-03-08 08:47:26,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26 WrapperNode [2025-03-08 08:47:26,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 08:47:26,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 08:47:26,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 08:47:26,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 08:47:26,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,660 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 285 [2025-03-08 08:47:26,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 08:47:26,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 08:47:26,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 08:47:26,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 08:47:26,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,678 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,698 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 08:47:26,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,715 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 08:47:26,723 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 08:47:26,723 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 08:47:26,723 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 08:47:26,724 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (1/1) ... [2025-03-08 08:47:26,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 08:47:26,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 08:47:26,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 08:47:26,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 08:47:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 08:47:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 08:47:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 08:47:26,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 08:47:26,891 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 08:47:26,893 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 08:47:27,213 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2025-03-08 08:47:27,213 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 08:47:27,221 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 08:47:27,222 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 08:47:27,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:47:27 BoogieIcfgContainer [2025-03-08 08:47:27,222 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 08:47:27,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 08:47:27,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 08:47:27,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 08:47:27,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 08:47:26" (1/3) ... [2025-03-08 08:47:27,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a949fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:47:27, skipping insertion in model container [2025-03-08 08:47:27,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:47:26" (2/3) ... [2025-03-08 08:47:27,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a949fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:47:27, skipping insertion in model container [2025-03-08 08:47:27,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:47:27" (3/3) ... [2025-03-08 08:47:27,231 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Spinner.c [2025-03-08 08:47:27,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 08:47:27,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_Spinner.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 08:47:27,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 08:47:27,308 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;@64054eeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 08:47:27,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 08:47:27,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-08 08:47:27,318 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 08:47:27,319 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-08 08:47:27,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 08:47:27,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 08:47:27,324 INFO L85 PathProgramCache]: Analyzing trace with hash 38140359, now seen corresponding path program 1 times [2025-03-08 08:47:27,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 08:47:27,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648363026] [2025-03-08 08:47:27,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 08:47:27,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 08:47:27,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 08:47:27,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 08:47:27,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 08:47:27,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 08:47:27,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 08:47:27,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 08:47:27,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 08:47:27,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-08 08:47:27,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 08:47:27,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 08:47:27,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 08:47:27,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 08:47:27,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648363026] [2025-03-08 08:47:27,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648363026] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 08:47:27,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 08:47:27,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 08:47:27,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656914033] [2025-03-08 08:47:27,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 08:47:27,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 08:47:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 08:47:27,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 08:47:27,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 08:47:27,709 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:27,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 08:47:27,769 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2025-03-08 08:47:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 08:47:27,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-08 08:47:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 08:47:27,775 INFO L225 Difference]: With dead ends: 16 [2025-03-08 08:47:27,775 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 08:47:27,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 08:47:27,778 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 08:47:27,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 08:47:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 08:47:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 08:47:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 08:47:27,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2025-03-08 08:47:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 08:47:27,795 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 08:47:27,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 08:47:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 08:47:27,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 08:47:27,797 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 08:47:27,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 08:47:27,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 08:47:28,002 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 08:47:28,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 08:47:28,011 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 08:47:28,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 08:47:28 BoogieIcfgContainer [2025-03-08 08:47:28,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 08:47:28,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 08:47:28,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 08:47:28,018 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 08:47:28,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:47:27" (3/4) ... [2025-03-08 08:47:28,020 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 08:47:28,028 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-08 08:47:28,028 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 08:47:28,028 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 08:47:28,028 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 08:47:28,102 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 08:47:28,102 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 08:47:28,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 08:47:28,103 INFO L158 Benchmark]: Toolchain (without parser) took 1832.52ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 65.2MB in the end (delta: 25.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2025-03-08 08:47:28,103 INFO L158 Benchmark]: CDTParser took 2.28ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 08:47:28,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.07ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 71.6MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 08:47:28,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.25ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 08:47:28,105 INFO L158 Benchmark]: Boogie Preprocessor took 61.09ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 65.9MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 08:47:28,106 INFO L158 Benchmark]: IcfgBuilder took 499.82ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 82.2MB in the end (delta: -16.3MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2025-03-08 08:47:28,106 INFO L158 Benchmark]: TraceAbstraction took 792.63ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 72.7MB in the end (delta: 8.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2025-03-08 08:47:28,106 INFO L158 Benchmark]: Witness Printer took 84.83ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 65.2MB in the end (delta: 7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 08:47:28,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.28ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.07ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 71.6MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.25ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 69.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.09ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 65.9MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 499.82ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 82.2MB in the end (delta: -16.3MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * TraceAbstraction took 792.63ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 72.7MB in the end (delta: 8.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 84.83ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 65.2MB in the end (delta: 7.5MB). 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 11 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 3 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 08:47:28,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE