./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 536acb696ed94b995033527813aeda4f29ece00fad0635ae3527f772205996b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:00:17,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:00:17,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 02:00:17,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:00:17,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:00:17,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:00:17,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:00:17,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:00:17,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:00:17,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:00:17,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:00:17,257 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:00:17,258 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:00:17,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:00:17,258 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 02:00:17,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 02:00:17,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:00:17,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:00:17,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:00:17,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:00:17,262 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 536acb696ed94b995033527813aeda4f29ece00fad0635ae3527f772205996b1 [2025-03-08 02:00:17,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:00:17,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:00:17,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:00:17,529 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:00:17,530 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:00:17,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label20.c [2025-03-08 02:00:18,713 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a67f9cb12/3124dd265c67494abdc0659993696dfa/FLAG455d533ea [2025-03-08 02:00:19,097 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:00:19,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label20.c [2025-03-08 02:00:19,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a67f9cb12/3124dd265c67494abdc0659993696dfa/FLAG455d533ea [2025-03-08 02:00:19,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a67f9cb12/3124dd265c67494abdc0659993696dfa [2025-03-08 02:00:19,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:00:19,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:00:19,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:00:19,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:00:19,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:00:19,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:00:19" (1/1) ... [2025-03-08 02:00:19,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b53348a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:19, skipping insertion in model container [2025-03-08 02:00:19,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:00:19" (1/1) ... [2025-03-08 02:00:19,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:00:19,485 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/eca-rers2012/Problem15_label20.c[5247,5260] [2025-03-08 02:00:19,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:00:19,869 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:00:19,884 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/eca-rers2012/Problem15_label20.c[5247,5260] [2025-03-08 02:00:20,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:00:20,049 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:00:20,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20 WrapperNode [2025-03-08 02:00:20,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:00:20,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:00:20,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:00:20,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:00:20,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,194 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1757 [2025-03-08 02:00:20,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:00:20,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:00:20,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:00:20,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:00:20,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,339 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 02:00:20,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,407 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:00:20,476 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:00:20,476 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:00:20,476 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:00:20,477 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (1/1) ... [2025-03-08 02:00:20,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:00:20,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:20,503 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 02:00:20,508 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 02:00:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:00:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 02:00:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:00:20,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:00:20,579 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:00:20,581 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:00:22,508 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2025-03-08 02:00:22,575 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2025-03-08 02:00:22,576 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:00:22,590 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:00:22,590 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:00:22,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:00:22 BoogieIcfgContainer [2025-03-08 02:00:22,591 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:00:22,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:00:22,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:00:22,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:00:22,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:00:19" (1/3) ... [2025-03-08 02:00:22,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c97bbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:00:22, skipping insertion in model container [2025-03-08 02:00:22,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:00:20" (2/3) ... [2025-03-08 02:00:22,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c97bbfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:00:22, skipping insertion in model container [2025-03-08 02:00:22,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:00:22" (3/3) ... [2025-03-08 02:00:22,599 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem15_label20.c [2025-03-08 02:00:22,610 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:00:22,611 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label20.c that has 1 procedures, 424 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 02:00:22,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:00:22,674 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;@4b6949ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:00:22,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:00:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 423 states have internal predecessors, (749), 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 02:00:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-08 02:00:22,690 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:22,691 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 02:00:22,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:22,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1583926216, now seen corresponding path program 1 times [2025-03-08 02:00:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:22,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985490042] [2025-03-08 02:00:22,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:22,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-08 02:00:22,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-08 02:00:22,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:22,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:22,991 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 02:00:22,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:22,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985490042] [2025-03-08 02:00:22,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985490042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:22,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:22,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:22,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603226286] [2025-03-08 02:00:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:22,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:22,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:23,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:23,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:23,015 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7748815165876777) internal successors, (749), 423 states have internal predecessors, (749), 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 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 02:00:24,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:24,608 INFO L93 Difference]: Finished difference Result 1154 states and 2103 transitions. [2025-03-08 02:00:24,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:24,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 02:00:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:24,621 INFO L225 Difference]: With dead ends: 1154 [2025-03-08 02:00:24,621 INFO L226 Difference]: Without dead ends: 665 [2025-03-08 02:00:24,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:00:24,631 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 279 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:24,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 385 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-08 02:00:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2025-03-08 02:00:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2025-03-08 02:00:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 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 02:00:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2025-03-08 02:00:24,705 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 42 [2025-03-08 02:00:24,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:24,705 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2025-03-08 02:00:24,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 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 02:00:24,706 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2025-03-08 02:00:24,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-08 02:00:24,707 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:24,707 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 02:00:24,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 02:00:24,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:24,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash 851979628, now seen corresponding path program 1 times [2025-03-08 02:00:24,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:24,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324018053] [2025-03-08 02:00:24,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:24,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:24,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 02:00:24,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 02:00:24,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:24,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:25,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:25,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324018053] [2025-03-08 02:00:25,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324018053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:25,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:25,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:25,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562614357] [2025-03-08 02:00:25,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:25,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:25,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:25,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:25,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:25,075 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 02:00:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:26,028 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2025-03-08 02:00:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2025-03-08 02:00:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:26,031 INFO L225 Difference]: With dead ends: 1624 [2025-03-08 02:00:26,032 INFO L226 Difference]: Without dead ends: 963 [2025-03-08 02:00:26,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:00:26,033 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:26,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 02:00:26,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2025-03-08 02:00:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2025-03-08 02:00:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 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 02:00:26,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2025-03-08 02:00:26,056 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 107 [2025-03-08 02:00:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:26,056 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2025-03-08 02:00:26,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 02:00:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2025-03-08 02:00:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-08 02:00:26,062 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:26,062 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:26,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 02:00:26,063 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:26,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash -703736767, now seen corresponding path program 1 times [2025-03-08 02:00:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:26,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153606968] [2025-03-08 02:00:26,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:26,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:26,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-08 02:00:26,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-08 02:00:26,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:26,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:26,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153606968] [2025-03-08 02:00:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153606968] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:26,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 02:00:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407115393] [2025-03-08 02:00:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:26,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 02:00:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:26,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 02:00:26,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:26,308 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 02:00:27,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:27,758 INFO L93 Difference]: Finished difference Result 2240 states and 3197 transitions. [2025-03-08 02:00:27,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:27,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 112 [2025-03-08 02:00:27,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:27,763 INFO L225 Difference]: With dead ends: 2240 [2025-03-08 02:00:27,763 INFO L226 Difference]: Without dead ends: 1578 [2025-03-08 02:00:27,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 02:00:27,765 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 939 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:27,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 324 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [653 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-08 02:00:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2025-03-08 02:00:27,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1266. [2025-03-08 02:00:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3051383399209486) internal successors, (1651), 1265 states have internal predecessors, (1651), 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 02:00:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1651 transitions. [2025-03-08 02:00:27,789 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1651 transitions. Word has length 112 [2025-03-08 02:00:27,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:27,789 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1651 transitions. [2025-03-08 02:00:27,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 02:00:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1651 transitions. [2025-03-08 02:00:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-08 02:00:27,791 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:27,791 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:27,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 02:00:27,791 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:27,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:27,791 INFO L85 PathProgramCache]: Analyzing trace with hash 249156355, now seen corresponding path program 1 times [2025-03-08 02:00:27,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:27,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265360685] [2025-03-08 02:00:27,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:27,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:27,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-08 02:00:27,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-08 02:00:27,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:27,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:27,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:27,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265360685] [2025-03-08 02:00:27,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265360685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:27,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:27,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:27,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436332235] [2025-03-08 02:00:27,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:27,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 02:00:27,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:27,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 02:00:27,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:27,919 INFO L87 Difference]: Start difference. First operand 1266 states and 1651 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 02:00:30,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:30,000 INFO L93 Difference]: Finished difference Result 4670 states and 6174 transitions. [2025-03-08 02:00:30,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:30,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2025-03-08 02:00:30,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:30,015 INFO L225 Difference]: With dead ends: 4670 [2025-03-08 02:00:30,016 INFO L226 Difference]: Without dead ends: 3406 [2025-03-08 02:00:30,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:30,019 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 521 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:30,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 374 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-08 02:00:30,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2025-03-08 02:00:30,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3381. [2025-03-08 02:00:30,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2372781065088758) internal successors, (4182), 3380 states have internal predecessors, (4182), 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 02:00:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4182 transitions. [2025-03-08 02:00:30,082 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4182 transitions. Word has length 133 [2025-03-08 02:00:30,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:30,082 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4182 transitions. [2025-03-08 02:00:30,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 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 02:00:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4182 transitions. [2025-03-08 02:00:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-03-08 02:00:30,088 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:30,088 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 02:00:30,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 02:00:30,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:30,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:30,089 INFO L85 PathProgramCache]: Analyzing trace with hash -568213464, now seen corresponding path program 1 times [2025-03-08 02:00:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716850601] [2025-03-08 02:00:30,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:30,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:30,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-03-08 02:00:30,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-03-08 02:00:30,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:30,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:30,223 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 02:00:30,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:30,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716850601] [2025-03-08 02:00:30,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716850601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:30,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:30,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374378500] [2025-03-08 02:00:30,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:30,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:30,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:30,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:30,225 INFO L87 Difference]: Start difference. First operand 3381 states and 4182 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 02:00:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:31,330 INFO L93 Difference]: Finished difference Result 8563 states and 10760 transitions. [2025-03-08 02:00:31,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:31,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 199 [2025-03-08 02:00:31,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:31,344 INFO L225 Difference]: With dead ends: 8563 [2025-03-08 02:00:31,344 INFO L226 Difference]: Without dead ends: 5483 [2025-03-08 02:00:31,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:00:31,348 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:31,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 338 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 02:00:31,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2025-03-08 02:00:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478. [2025-03-08 02:00:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1694358225305825) internal successors, (6405), 5477 states have internal predecessors, (6405), 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 02:00:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6405 transitions. [2025-03-08 02:00:31,420 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6405 transitions. Word has length 199 [2025-03-08 02:00:31,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:31,421 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6405 transitions. [2025-03-08 02:00:31,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 02:00:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6405 transitions. [2025-03-08 02:00:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2025-03-08 02:00:31,423 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:31,423 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:31,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 02:00:31,423 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:31,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:31,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1477350179, now seen corresponding path program 1 times [2025-03-08 02:00:31,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:31,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332085519] [2025-03-08 02:00:31,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:31,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:31,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 200 statements into 1 equivalence classes. [2025-03-08 02:00:31,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 200 of 200 statements. [2025-03-08 02:00:31,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:31,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:31,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:31,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332085519] [2025-03-08 02:00:31,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332085519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:31,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:31,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 02:00:31,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377134599] [2025-03-08 02:00:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:31,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:31,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:31,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:31,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:31,771 INFO L87 Difference]: Start difference. First operand 5478 states and 6405 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 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 02:00:32,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:32,779 INFO L93 Difference]: Finished difference Result 10655 states and 12497 transitions. [2025-03-08 02:00:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:32,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 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 200 [2025-03-08 02:00:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:32,791 INFO L225 Difference]: With dead ends: 10655 [2025-03-08 02:00:32,791 INFO L226 Difference]: Without dead ends: 5478 [2025-03-08 02:00:32,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:00:32,798 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 143 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:32,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2025-03-08 02:00:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2025-03-08 02:00:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1683403322987036) internal successors, (6399), 5477 states have internal predecessors, (6399), 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 02:00:32,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6399 transitions. [2025-03-08 02:00:32,890 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6399 transitions. Word has length 200 [2025-03-08 02:00:32,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:32,891 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6399 transitions. [2025-03-08 02:00:32,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 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 02:00:32,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6399 transitions. [2025-03-08 02:00:32,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-03-08 02:00:32,892 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:32,893 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:32,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 02:00:32,893 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:32,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:32,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1441226220, now seen corresponding path program 1 times [2025-03-08 02:00:32,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:32,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526715797] [2025-03-08 02:00:32,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:32,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:32,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 218 statements into 1 equivalence classes. [2025-03-08 02:00:32,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 218 of 218 statements. [2025-03-08 02:00:32,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:32,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:33,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526715797] [2025-03-08 02:00:33,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526715797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:33,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:33,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:33,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851389030] [2025-03-08 02:00:33,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:33,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 02:00:33,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:33,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 02:00:33,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:33,066 INFO L87 Difference]: Start difference. First operand 5478 states and 6399 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 02:00:35,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:35,076 INFO L93 Difference]: Finished difference Result 12184 states and 14319 transitions. [2025-03-08 02:00:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:35,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 218 [2025-03-08 02:00:35,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:35,092 INFO L225 Difference]: With dead ends: 12184 [2025-03-08 02:00:35,092 INFO L226 Difference]: Without dead ends: 7007 [2025-03-08 02:00:35,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:35,097 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 442 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:35,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 353 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-08 02:00:35,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2025-03-08 02:00:35,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 5786. [2025-03-08 02:00:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5786 states, 5785 states have (on average 1.1799481417458946) internal successors, (6826), 5785 states have internal predecessors, (6826), 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 02:00:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5786 states to 5786 states and 6826 transitions. [2025-03-08 02:00:35,187 INFO L78 Accepts]: Start accepts. Automaton has 5786 states and 6826 transitions. Word has length 218 [2025-03-08 02:00:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 5786 states and 6826 transitions. [2025-03-08 02:00:35,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 02:00:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5786 states and 6826 transitions. [2025-03-08 02:00:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2025-03-08 02:00:35,189 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:35,190 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:35,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 02:00:35,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:35,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:35,190 INFO L85 PathProgramCache]: Analyzing trace with hash -251773225, now seen corresponding path program 1 times [2025-03-08 02:00:35,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:35,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568005172] [2025-03-08 02:00:35,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:35,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:35,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 275 statements into 1 equivalence classes. [2025-03-08 02:00:35,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 275 of 275 statements. [2025-03-08 02:00:35,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:35,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:35,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:35,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568005172] [2025-03-08 02:00:35,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568005172] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:35,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:35,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:35,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364571324] [2025-03-08 02:00:35,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:35,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 02:00:35,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:35,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 02:00:35,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:35,442 INFO L87 Difference]: Start difference. First operand 5786 states and 6826 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 3 states have internal predecessors, (275), 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 02:00:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:37,446 INFO L93 Difference]: Finished difference Result 13094 states and 15499 transitions. [2025-03-08 02:00:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:37,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 3 states have internal predecessors, (275), 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 275 [2025-03-08 02:00:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:37,477 INFO L225 Difference]: With dead ends: 13094 [2025-03-08 02:00:37,477 INFO L226 Difference]: Without dead ends: 7609 [2025-03-08 02:00:37,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:00:37,486 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 383 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:37,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 390 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-08 02:00:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7609 states. [2025-03-08 02:00:37,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7609 to 6086. [2025-03-08 02:00:37,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 6085 states have (on average 1.1750205423171733) internal successors, (7150), 6085 states have internal predecessors, (7150), 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 02:00:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 7150 transitions. [2025-03-08 02:00:37,558 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 7150 transitions. Word has length 275 [2025-03-08 02:00:37,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:37,559 INFO L471 AbstractCegarLoop]: Abstraction has 6086 states and 7150 transitions. [2025-03-08 02:00:37,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 3 states have internal predecessors, (275), 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 02:00:37,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 7150 transitions. [2025-03-08 02:00:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2025-03-08 02:00:37,562 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:37,562 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:37,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 02:00:37,562 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:37,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:37,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1370858232, now seen corresponding path program 1 times [2025-03-08 02:00:37,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:37,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464260856] [2025-03-08 02:00:37,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:37,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:37,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 329 statements into 1 equivalence classes. [2025-03-08 02:00:37,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 329 of 329 statements. [2025-03-08 02:00:37,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:37,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-03-08 02:00:37,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464260856] [2025-03-08 02:00:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464260856] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:37,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:37,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245627369] [2025-03-08 02:00:37,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:37,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:37,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:37,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:37,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:37,765 INFO L87 Difference]: Start difference. First operand 6086 states and 7150 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 02:00:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:38,968 INFO L93 Difference]: Finished difference Result 14273 states and 17120 transitions. [2025-03-08 02:00:38,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:38,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 329 [2025-03-08 02:00:38,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:38,981 INFO L225 Difference]: With dead ends: 14273 [2025-03-08 02:00:38,981 INFO L226 Difference]: Without dead ends: 8488 [2025-03-08 02:00:38,986 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 02:00:38,987 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 274 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:38,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 671 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 02:00:38,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8488 states. [2025-03-08 02:00:39,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8488 to 8484. [2025-03-08 02:00:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8484 states, 8483 states have (on average 1.1478250618884829) internal successors, (9737), 8483 states have internal predecessors, (9737), 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 02:00:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8484 states to 8484 states and 9737 transitions. [2025-03-08 02:00:39,064 INFO L78 Accepts]: Start accepts. Automaton has 8484 states and 9737 transitions. Word has length 329 [2025-03-08 02:00:39,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:39,064 INFO L471 AbstractCegarLoop]: Abstraction has 8484 states and 9737 transitions. [2025-03-08 02:00:39,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 02:00:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 8484 states and 9737 transitions. [2025-03-08 02:00:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2025-03-08 02:00:39,068 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:39,068 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:39,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 02:00:39,068 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:39,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash 530421851, now seen corresponding path program 1 times [2025-03-08 02:00:39,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:39,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265492425] [2025-03-08 02:00:39,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:39,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:39,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 388 statements into 1 equivalence classes. [2025-03-08 02:00:39,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 388 of 388 statements. [2025-03-08 02:00:39,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:39,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-08 02:00:39,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265492425] [2025-03-08 02:00:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265492425] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:39,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480305854] [2025-03-08 02:00:39,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:39,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:39,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:39,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:39,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:39,275 INFO L87 Difference]: Start difference. First operand 8484 states and 9737 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 02:00:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:40,336 INFO L93 Difference]: Finished difference Result 19663 states and 22941 transitions. [2025-03-08 02:00:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:40,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 388 [2025-03-08 02:00:40,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:40,353 INFO L225 Difference]: With dead ends: 19663 [2025-03-08 02:00:40,353 INFO L226 Difference]: Without dead ends: 11480 [2025-03-08 02:00:40,361 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 02:00:40,361 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 285 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:40,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 634 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11480 states. [2025-03-08 02:00:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11480 to 10583. [2025-03-08 02:00:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10583 states, 10582 states have (on average 1.1332451332451332) internal successors, (11992), 10582 states have internal predecessors, (11992), 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 02:00:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10583 states to 10583 states and 11992 transitions. [2025-03-08 02:00:40,484 INFO L78 Accepts]: Start accepts. Automaton has 10583 states and 11992 transitions. Word has length 388 [2025-03-08 02:00:40,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:40,485 INFO L471 AbstractCegarLoop]: Abstraction has 10583 states and 11992 transitions. [2025-03-08 02:00:40,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 02:00:40,485 INFO L276 IsEmpty]: Start isEmpty. Operand 10583 states and 11992 transitions. [2025-03-08 02:00:40,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2025-03-08 02:00:40,489 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:40,490 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:40,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 02:00:40,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:40,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:40,491 INFO L85 PathProgramCache]: Analyzing trace with hash 329272709, now seen corresponding path program 1 times [2025-03-08 02:00:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:40,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344619202] [2025-03-08 02:00:40,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:40,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:40,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 389 statements into 1 equivalence classes. [2025-03-08 02:00:40,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 389 of 389 statements. [2025-03-08 02:00:40,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:40,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:40,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344619202] [2025-03-08 02:00:40,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344619202] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:00:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414626387] [2025-03-08 02:00:40,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:40,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:00:40,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:40,964 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 02:00:40,966 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 02:00:41,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 389 statements into 1 equivalence classes. [2025-03-08 02:00:41,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 389 of 389 statements. [2025-03-08 02:00:41,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:41,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:41,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 02:00:41,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:00:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-08 02:00:41,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:00:41,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414626387] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:41,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:00:41,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-08 02:00:41,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245483563] [2025-03-08 02:00:41,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:41,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 02:00:41,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:41,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 02:00:41,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 02:00:41,669 INFO L87 Difference]: Start difference. First operand 10583 states and 11992 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 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 02:00:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:43,728 INFO L93 Difference]: Finished difference Result 32858 states and 37474 transitions. [2025-03-08 02:00:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:00:43,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 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 389 [2025-03-08 02:00:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:43,768 INFO L225 Difference]: With dead ends: 32858 [2025-03-08 02:00:43,768 INFO L226 Difference]: Without dead ends: 19586 [2025-03-08 02:00:43,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 02:00:43,777 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 475 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:43,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 118 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-08 02:00:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19586 states. [2025-03-08 02:00:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19586 to 18984. [2025-03-08 02:00:43,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18984 states, 18983 states have (on average 1.1150503081704684) internal successors, (21167), 18983 states have internal predecessors, (21167), 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 02:00:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18984 states to 18984 states and 21167 transitions. [2025-03-08 02:00:43,992 INFO L78 Accepts]: Start accepts. Automaton has 18984 states and 21167 transitions. Word has length 389 [2025-03-08 02:00:43,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:43,992 INFO L471 AbstractCegarLoop]: Abstraction has 18984 states and 21167 transitions. [2025-03-08 02:00:43,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 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 02:00:43,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18984 states and 21167 transitions. [2025-03-08 02:00:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2025-03-08 02:00:43,996 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:43,996 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:44,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 02:00:44,200 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,SelfDestructingSolverStorable10 [2025-03-08 02:00:44,200 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:44,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1932996782, now seen corresponding path program 1 times [2025-03-08 02:00:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079132598] [2025-03-08 02:00:44,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:44,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 397 statements into 1 equivalence classes. [2025-03-08 02:00:44,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 397 of 397 statements. [2025-03-08 02:00:44,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:44,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:44,446 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-08 02:00:44,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:44,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079132598] [2025-03-08 02:00:44,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079132598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:44,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:44,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:44,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875484085] [2025-03-08 02:00:44,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:44,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:44,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:44,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:44,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:44,448 INFO L87 Difference]: Start difference. First operand 18984 states and 21167 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 02:00:45,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:45,516 INFO L93 Difference]: Finished difference Result 37973 states and 42348 transitions. [2025-03-08 02:00:45,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:45,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 397 [2025-03-08 02:00:45,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:45,537 INFO L225 Difference]: With dead ends: 37973 [2025-03-08 02:00:45,537 INFO L226 Difference]: Without dead ends: 19290 [2025-03-08 02:00:45,550 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 02:00:45,551 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 283 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:45,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 629 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:45,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19290 states. [2025-03-08 02:00:45,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19290 to 14186. [2025-03-08 02:00:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14186 states, 14185 states have (on average 1.112513218188227) internal successors, (15781), 14185 states have internal predecessors, (15781), 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 02:00:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14186 states to 14186 states and 15781 transitions. [2025-03-08 02:00:45,683 INFO L78 Accepts]: Start accepts. Automaton has 14186 states and 15781 transitions. Word has length 397 [2025-03-08 02:00:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:45,684 INFO L471 AbstractCegarLoop]: Abstraction has 14186 states and 15781 transitions. [2025-03-08 02:00:45,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 02:00:45,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14186 states and 15781 transitions. [2025-03-08 02:00:45,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2025-03-08 02:00:45,686 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:45,686 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:45,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 02:00:45,686 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:45,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:45,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1066302760, now seen corresponding path program 1 times [2025-03-08 02:00:45,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:45,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061925282] [2025-03-08 02:00:45,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:45,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 405 statements into 1 equivalence classes. [2025-03-08 02:00:45,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 405 of 405 statements. [2025-03-08 02:00:45,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:45,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 02:00:45,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061925282] [2025-03-08 02:00:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061925282] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:45,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:45,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990954921] [2025-03-08 02:00:45,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:45,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:45,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:45,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:45,901 INFO L87 Difference]: Start difference. First operand 14186 states and 15781 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 02:00:46,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:46,854 INFO L93 Difference]: Finished difference Result 31073 states and 35057 transitions. [2025-03-08 02:00:46,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:46,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 405 [2025-03-08 02:00:46,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:46,871 INFO L225 Difference]: With dead ends: 31073 [2025-03-08 02:00:46,872 INFO L226 Difference]: Without dead ends: 17188 [2025-03-08 02:00:46,881 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 02:00:46,882 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 246 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:46,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 604 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 02:00:46,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17188 states. [2025-03-08 02:00:46,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17188 to 16578. [2025-03-08 02:00:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16578 states, 16577 states have (on average 1.1010436146467997) internal successors, (18252), 16577 states have internal predecessors, (18252), 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 02:00:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16578 states to 16578 states and 18252 transitions. [2025-03-08 02:00:47,006 INFO L78 Accepts]: Start accepts. Automaton has 16578 states and 18252 transitions. Word has length 405 [2025-03-08 02:00:47,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:47,007 INFO L471 AbstractCegarLoop]: Abstraction has 16578 states and 18252 transitions. [2025-03-08 02:00:47,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 02:00:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 16578 states and 18252 transitions. [2025-03-08 02:00:47,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2025-03-08 02:00:47,010 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:47,010 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:47,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 02:00:47,010 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:47,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1456032618, now seen corresponding path program 1 times [2025-03-08 02:00:47,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:47,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174332869] [2025-03-08 02:00:47,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:47,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:47,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 519 statements into 1 equivalence classes. [2025-03-08 02:00:47,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 519 of 519 statements. [2025-03-08 02:00:47,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:47,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2025-03-08 02:00:47,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174332869] [2025-03-08 02:00:47,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174332869] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:47,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:47,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:47,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877128866] [2025-03-08 02:00:47,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:47,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:47,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:47,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:47,223 INFO L87 Difference]: Start difference. First operand 16578 states and 18252 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 02:00:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:48,307 INFO L93 Difference]: Finished difference Result 38232 states and 42166 transitions. [2025-03-08 02:00:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:48,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 519 [2025-03-08 02:00:48,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:48,335 INFO L225 Difference]: With dead ends: 38232 [2025-03-08 02:00:48,335 INFO L226 Difference]: Without dead ends: 20463 [2025-03-08 02:00:48,347 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 02:00:48,347 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 281 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:48,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 620 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20463 states. [2025-03-08 02:00:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20463 to 15962. [2025-03-08 02:00:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15962 states, 15961 states have (on average 1.0853329991855147) internal successors, (17323), 15961 states have internal predecessors, (17323), 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 02:00:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15962 states to 15962 states and 17323 transitions. [2025-03-08 02:00:48,530 INFO L78 Accepts]: Start accepts. Automaton has 15962 states and 17323 transitions. Word has length 519 [2025-03-08 02:00:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:48,530 INFO L471 AbstractCegarLoop]: Abstraction has 15962 states and 17323 transitions. [2025-03-08 02:00:48,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 02:00:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 15962 states and 17323 transitions. [2025-03-08 02:00:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2025-03-08 02:00:48,534 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:48,534 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:48,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 02:00:48,534 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:48,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1470709783, now seen corresponding path program 1 times [2025-03-08 02:00:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:48,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103428861] [2025-03-08 02:00:48,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:48,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:48,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 543 statements into 1 equivalence classes. [2025-03-08 02:00:48,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 543 of 543 statements. [2025-03-08 02:00:48,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:48,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2025-03-08 02:00:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:48,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103428861] [2025-03-08 02:00:48,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103428861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:48,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:48,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129870843] [2025-03-08 02:00:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:48,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:48,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:48,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:48,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:48,833 INFO L87 Difference]: Start difference. First operand 15962 states and 17323 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:00:49,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:49,912 INFO L93 Difference]: Finished difference Result 31020 states and 33705 transitions. [2025-03-08 02:00:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:49,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 543 [2025-03-08 02:00:49,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:49,925 INFO L225 Difference]: With dead ends: 31020 [2025-03-08 02:00:49,926 INFO L226 Difference]: Without dead ends: 16259 [2025-03-08 02:00:49,934 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 02:00:49,934 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 463 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:49,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 69 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 02:00:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16259 states. [2025-03-08 02:00:50,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16259 to 15960. [2025-03-08 02:00:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15960 states, 15959 states have (on average 1.085218372078451) internal successors, (17319), 15959 states have internal predecessors, (17319), 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 02:00:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15960 states to 15960 states and 17319 transitions. [2025-03-08 02:00:50,057 INFO L78 Accepts]: Start accepts. Automaton has 15960 states and 17319 transitions. Word has length 543 [2025-03-08 02:00:50,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:50,058 INFO L471 AbstractCegarLoop]: Abstraction has 15960 states and 17319 transitions. [2025-03-08 02:00:50,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:00:50,058 INFO L276 IsEmpty]: Start isEmpty. Operand 15960 states and 17319 transitions. [2025-03-08 02:00:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2025-03-08 02:00:50,062 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:50,062 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:50,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 02:00:50,062 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:50,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash -550959165, now seen corresponding path program 1 times [2025-03-08 02:00:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:50,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692590343] [2025-03-08 02:00:50,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:50,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:50,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 552 statements into 1 equivalence classes. [2025-03-08 02:00:50,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 552 of 552 statements. [2025-03-08 02:00:50,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:50,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-03-08 02:00:50,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:50,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692590343] [2025-03-08 02:00:50,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692590343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:50,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:50,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:50,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698362316] [2025-03-08 02:00:50,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:50,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:50,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:50,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:50,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:50,257 INFO L87 Difference]: Start difference. First operand 15960 states and 17319 transitions. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 02:00:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:51,156 INFO L93 Difference]: Finished difference Result 34307 states and 37626 transitions. [2025-03-08 02:00:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:51,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 552 [2025-03-08 02:00:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:51,173 INFO L225 Difference]: With dead ends: 34307 [2025-03-08 02:00:51,173 INFO L226 Difference]: Without dead ends: 18651 [2025-03-08 02:00:51,184 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 02:00:51,184 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 266 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:51,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 284 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 02:00:51,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18651 states. [2025-03-08 02:00:51,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18651 to 12961. [2025-03-08 02:00:51,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12961 states, 12960 states have (on average 1.0740740740740742) internal successors, (13920), 12960 states have internal predecessors, (13920), 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 02:00:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12961 states to 12961 states and 13920 transitions. [2025-03-08 02:00:51,292 INFO L78 Accepts]: Start accepts. Automaton has 12961 states and 13920 transitions. Word has length 552 [2025-03-08 02:00:51,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:51,293 INFO L471 AbstractCegarLoop]: Abstraction has 12961 states and 13920 transitions. [2025-03-08 02:00:51,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 02:00:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 12961 states and 13920 transitions. [2025-03-08 02:00:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2025-03-08 02:00:51,297 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:51,297 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:51,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 02:00:51,297 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:51,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:51,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1051069307, now seen corresponding path program 1 times [2025-03-08 02:00:51,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:51,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10522552] [2025-03-08 02:00:51,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:51,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:51,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 583 statements into 1 equivalence classes. [2025-03-08 02:00:51,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 583 of 583 statements. [2025-03-08 02:00:51,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:51,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 80 proven. 243 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-03-08 02:00:51,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:51,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10522552] [2025-03-08 02:00:51,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10522552] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:00:51,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640851121] [2025-03-08 02:00:51,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:51,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:00:51,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:51,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:00:51,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 02:00:51,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 583 statements into 1 equivalence classes. [2025-03-08 02:00:52,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 583 of 583 statements. [2025-03-08 02:00:52,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:52,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:52,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 02:00:52,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:00:52,058 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2025-03-08 02:00:52,059 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:00:52,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640851121] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:52,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:00:52,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-08 02:00:52,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70923747] [2025-03-08 02:00:52,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:52,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:52,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:52,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:52,061 INFO L87 Difference]: Start difference. First operand 12961 states and 13920 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 02:00:52,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:52,933 INFO L93 Difference]: Finished difference Result 15355 states and 16410 transitions. [2025-03-08 02:00:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:52,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 583 [2025-03-08 02:00:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:52,947 INFO L225 Difference]: With dead ends: 15355 [2025-03-08 02:00:52,947 INFO L226 Difference]: Without dead ends: 15353 [2025-03-08 02:00:52,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:52,951 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 273 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:52,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 255 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 02:00:52,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15353 states. [2025-03-08 02:00:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15353 to 11759. [2025-03-08 02:00:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11759 states, 11758 states have (on average 1.0788399387650962) internal successors, (12685), 11758 states have internal predecessors, (12685), 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 02:00:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11759 states to 11759 states and 12685 transitions. [2025-03-08 02:00:53,041 INFO L78 Accepts]: Start accepts. Automaton has 11759 states and 12685 transitions. Word has length 583 [2025-03-08 02:00:53,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:53,041 INFO L471 AbstractCegarLoop]: Abstraction has 11759 states and 12685 transitions. [2025-03-08 02:00:53,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 02:00:53,042 INFO L276 IsEmpty]: Start isEmpty. Operand 11759 states and 12685 transitions. [2025-03-08 02:00:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2025-03-08 02:00:53,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:53,046 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:53,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 02:00:53,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-08 02:00:53,246 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:53,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1852555499, now seen corresponding path program 1 times [2025-03-08 02:00:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:53,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184642906] [2025-03-08 02:00:53,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:53,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:53,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 609 statements into 1 equivalence classes. [2025-03-08 02:00:53,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 609 of 609 statements. [2025-03-08 02:00:53,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:53,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2025-03-08 02:00:53,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184642906] [2025-03-08 02:00:53,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184642906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:53,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:53,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120866896] [2025-03-08 02:00:53,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:53,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:53,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:53,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:53,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:53,621 INFO L87 Difference]: Start difference. First operand 11759 states and 12685 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 02:00:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:54,501 INFO L93 Difference]: Finished difference Result 28613 states and 30913 transitions. [2025-03-08 02:00:54,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:54,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 609 [2025-03-08 02:00:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:54,517 INFO L225 Difference]: With dead ends: 28613 [2025-03-08 02:00:54,517 INFO L226 Difference]: Without dead ends: 17155 [2025-03-08 02:00:54,525 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 02:00:54,525 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 254 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:54,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 558 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 02:00:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17155 states. [2025-03-08 02:00:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17155 to 15948. [2025-03-08 02:00:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15948 states, 15947 states have (on average 1.0687903680943125) internal successors, (17044), 15947 states have internal predecessors, (17044), 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 02:00:54,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15948 states to 15948 states and 17044 transitions. [2025-03-08 02:00:54,639 INFO L78 Accepts]: Start accepts. Automaton has 15948 states and 17044 transitions. Word has length 609 [2025-03-08 02:00:54,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:54,639 INFO L471 AbstractCegarLoop]: Abstraction has 15948 states and 17044 transitions. [2025-03-08 02:00:54,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 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 02:00:54,639 INFO L276 IsEmpty]: Start isEmpty. Operand 15948 states and 17044 transitions. [2025-03-08 02:00:54,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2025-03-08 02:00:54,644 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:54,644 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:54,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 02:00:54,644 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:54,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:54,645 INFO L85 PathProgramCache]: Analyzing trace with hash -807133086, now seen corresponding path program 1 times [2025-03-08 02:00:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:54,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092666029] [2025-03-08 02:00:54,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:54,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:54,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 614 statements into 1 equivalence classes. [2025-03-08 02:00:54,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 614 of 614 statements. [2025-03-08 02:00:54,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:54,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 120 proven. 327 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2025-03-08 02:00:55,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092666029] [2025-03-08 02:00:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092666029] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:00:55,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132277721] [2025-03-08 02:00:55,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:55,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:00:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:55,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:00:55,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 02:00:55,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 614 statements into 1 equivalence classes. [2025-03-08 02:00:55,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 614 of 614 statements. [2025-03-08 02:00:55,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:55,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:55,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 02:00:55,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:00:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2025-03-08 02:00:55,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:00:55,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132277721] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:55,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:00:55,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-08 02:00:55,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109271929] [2025-03-08 02:00:55,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:55,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:55,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:55,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:55,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:55,564 INFO L87 Difference]: Start difference. First operand 15948 states and 17044 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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 02:00:56,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:56,560 INFO L93 Difference]: Finished difference Result 34584 states and 37113 transitions. [2025-03-08 02:00:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:56,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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) Word has length 614 [2025-03-08 02:00:56,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:56,578 INFO L225 Difference]: With dead ends: 34584 [2025-03-08 02:00:56,578 INFO L226 Difference]: Without dead ends: 18937 [2025-03-08 02:00:56,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:56,587 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 300 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:56,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 420 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 02:00:56,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18937 states. [2025-03-08 02:00:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18937 to 17741. [2025-03-08 02:00:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17741 states, 17740 states have (on average 1.0711386696730552) internal successors, (19002), 17740 states have internal predecessors, (19002), 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 02:00:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17741 states to 17741 states and 19002 transitions. [2025-03-08 02:00:56,710 INFO L78 Accepts]: Start accepts. Automaton has 17741 states and 19002 transitions. Word has length 614 [2025-03-08 02:00:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:56,710 INFO L471 AbstractCegarLoop]: Abstraction has 17741 states and 19002 transitions. [2025-03-08 02:00:56,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 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 02:00:56,711 INFO L276 IsEmpty]: Start isEmpty. Operand 17741 states and 19002 transitions. [2025-03-08 02:00:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2025-03-08 02:00:56,715 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:56,716 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:56,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 02:00:56,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:00:56,916 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:56,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1247931965, now seen corresponding path program 1 times [2025-03-08 02:00:56,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:56,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993086582] [2025-03-08 02:00:56,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:56,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 639 statements into 1 equivalence classes. [2025-03-08 02:00:57,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 639 of 639 statements. [2025-03-08 02:00:57,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:57,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2025-03-08 02:00:57,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:57,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993086582] [2025-03-08 02:00:57,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993086582] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:57,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:00:57,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 02:00:57,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721532367] [2025-03-08 02:00:57,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:57,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:57,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:57,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:57,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 02:00:57,195 INFO L87 Difference]: Start difference. First operand 17741 states and 19002 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 02:00:58,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:00:58,375 INFO L93 Difference]: Finished difference Result 39663 states and 42502 transitions. [2025-03-08 02:00:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:00:58,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 639 [2025-03-08 02:00:58,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:00:58,394 INFO L225 Difference]: With dead ends: 39663 [2025-03-08 02:00:58,394 INFO L226 Difference]: Without dead ends: 22223 [2025-03-08 02:00:58,404 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 02:00:58,405 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 302 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 02:00:58,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 194 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 02:00:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22223 states. [2025-03-08 02:00:58,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22223 to 19232. [2025-03-08 02:00:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19232 states, 19231 states have (on average 1.067027195673652) internal successors, (20520), 19231 states have internal predecessors, (20520), 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 02:00:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19232 states to 19232 states and 20520 transitions. [2025-03-08 02:00:58,557 INFO L78 Accepts]: Start accepts. Automaton has 19232 states and 20520 transitions. Word has length 639 [2025-03-08 02:00:58,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:00:58,557 INFO L471 AbstractCegarLoop]: Abstraction has 19232 states and 20520 transitions. [2025-03-08 02:00:58,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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 02:00:58,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19232 states and 20520 transitions. [2025-03-08 02:00:58,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2025-03-08 02:00:58,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:00:58,564 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:00:58,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 02:00:58,564 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:00:58,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:00:58,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1911877540, now seen corresponding path program 1 times [2025-03-08 02:00:58,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:00:58,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521003053] [2025-03-08 02:00:58,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:58,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:00:58,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 667 statements into 1 equivalence classes. [2025-03-08 02:00:58,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 667 of 667 statements. [2025-03-08 02:00:58,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:58,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:59,296 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 80 proven. 243 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2025-03-08 02:00:59,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:00:59,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521003053] [2025-03-08 02:00:59,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521003053] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 02:00:59,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829294095] [2025-03-08 02:00:59,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:00:59,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:00:59,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:00:59,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 02:00:59,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 02:00:59,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 667 statements into 1 equivalence classes. [2025-03-08 02:00:59,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 667 of 667 statements. [2025-03-08 02:00:59,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:00:59,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:00:59,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 02:00:59,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 02:00:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-03-08 02:00:59,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 02:00:59,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829294095] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:00:59,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 02:00:59,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-08 02:00:59,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514313384] [2025-03-08 02:00:59,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:00:59,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 02:00:59,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:00:59,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 02:00:59,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:00:59,525 INFO L87 Difference]: Start difference. First operand 19232 states and 20520 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:01:00,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:00,324 INFO L93 Difference]: Finished difference Result 37557 states and 40105 transitions. [2025-03-08 02:01:00,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 02:01:00,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 667 [2025-03-08 02:01:00,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:00,340 INFO L225 Difference]: With dead ends: 37557 [2025-03-08 02:01:00,341 INFO L226 Difference]: Without dead ends: 18626 [2025-03-08 02:01:00,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 02:01:00,352 INFO L435 NwaCegarLoop]: 489 mSDtfsCounter, 287 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:00,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 522 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 02:01:00,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18626 states. [2025-03-08 02:01:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18626 to 18027. [2025-03-08 02:01:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18027 states, 18026 states have (on average 1.0402751581049594) internal successors, (18752), 18026 states have internal predecessors, (18752), 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 02:01:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18027 states to 18027 states and 18752 transitions. [2025-03-08 02:01:00,480 INFO L78 Accepts]: Start accepts. Automaton has 18027 states and 18752 transitions. Word has length 667 [2025-03-08 02:01:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:00,481 INFO L471 AbstractCegarLoop]: Abstraction has 18027 states and 18752 transitions. [2025-03-08 02:01:00,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 02:01:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 18027 states and 18752 transitions. [2025-03-08 02:01:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2025-03-08 02:01:00,492 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:01:00,492 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:00,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 02:01:00,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 02:01:00,693 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:01:00,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:01:00,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1669709114, now seen corresponding path program 1 times [2025-03-08 02:01:00,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:01:00,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890178246] [2025-03-08 02:01:00,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:01:00,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:01:00,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 809 statements into 1 equivalence classes. [2025-03-08 02:01:00,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 809 of 809 statements. [2025-03-08 02:01:00,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:01:00,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 02:01:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 691 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2025-03-08 02:01:01,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 02:01:01,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890178246] [2025-03-08 02:01:01,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890178246] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 02:01:01,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 02:01:01,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 02:01:01,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373353156] [2025-03-08 02:01:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 02:01:01,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 02:01:01,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 02:01:01,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 02:01:01,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:01:01,182 INFO L87 Difference]: Start difference. First operand 18027 states and 18752 transitions. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 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 02:01:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 02:01:02,442 INFO L93 Difference]: Finished difference Result 41143 states and 42740 transitions. [2025-03-08 02:01:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 02:01:02,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 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 809 [2025-03-08 02:01:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 02:01:02,444 INFO L225 Difference]: With dead ends: 41143 [2025-03-08 02:01:02,444 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 02:01:02,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-08 02:01:02,458 INFO L435 NwaCegarLoop]: 391 mSDtfsCounter, 485 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 02:01:02,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 448 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 02:01:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 02:01:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 02:01:02,459 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 02:01:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 02:01:02,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 809 [2025-03-08 02:01:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 02:01:02,459 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 02:01:02,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 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 02:01:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 02:01:02,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 02:01:02,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 02:01:02,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 02:01:02,466 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, 1] [2025-03-08 02:01:02,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 02:01:05,493 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 02:01:05,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:01:05 BoogieIcfgContainer [2025-03-08 02:01:05,508 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 02:01:05,509 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 02:01:05,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 02:01:05,510 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 02:01:05,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:00:22" (3/4) ... [2025-03-08 02:01:05,512 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 02:01:05,538 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-08 02:01:05,541 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 02:01:05,543 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 02:01:05,544 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 02:01:05,728 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 02:01:05,728 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 02:01:05,729 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 02:01:05,730 INFO L158 Benchmark]: Toolchain (without parser) took 46446.60ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 100.3MB in the beginning and 1.1GB in the end (delta: -990.3MB). Peak memory consumption was 240.5MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,730 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:01:05,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.92ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 87.0MB in the end (delta: 13.3MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.57ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 49.5MB in the end (delta: 37.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,732 INFO L158 Benchmark]: Boogie Preprocessor took 280.92ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 76.2MB in the end (delta: -26.6MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,732 INFO L158 Benchmark]: IcfgBuilder took 2114.59ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 75.4MB in the beginning and 184.0MB in the end (delta: -108.6MB). Peak memory consumption was 184.8MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,733 INFO L158 Benchmark]: TraceAbstraction took 42916.17ms. Allocated memory was 360.7MB in the beginning and 1.2GB in the end (delta: 822.1MB). Free memory was 184.0MB in the beginning and 913.0MB in the end (delta: -729.0MB). Peak memory consumption was 648.1MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,733 INFO L158 Benchmark]: Witness Printer took 219.70ms. Allocated memory is still 1.2GB. Free memory was 913.0MB in the beginning and 1.1GB in the end (delta: -177.7MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2025-03-08 02:01:05,733 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.92ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 87.0MB in the end (delta: 13.3MB). Peak memory consumption was 80.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.57ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 49.5MB in the end (delta: 37.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 280.92ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 76.2MB in the end (delta: -26.6MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * IcfgBuilder took 2114.59ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 75.4MB in the beginning and 184.0MB in the end (delta: -108.6MB). Peak memory consumption was 184.8MB. Max. memory is 16.1GB. * TraceAbstraction took 42916.17ms. Allocated memory was 360.7MB in the beginning and 1.2GB in the end (delta: 822.1MB). Free memory was 184.0MB in the beginning and 913.0MB in the end (delta: -729.0MB). Peak memory consumption was 648.1MB. Max. memory is 16.1GB. * Witness Printer took 219.70ms. Allocated memory is still 1.2GB. Free memory was 913.0MB in the beginning and 1.1GB in the end (delta: -177.7MB). Peak memory consumption was 11.1MB. 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: 143]: 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, 424 locations, 749 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.8s, OverallIterations: 22, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7675 SdHoareTripleChecker+Valid, 26.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7675 mSDsluCounter, 8886 SdHoareTripleChecker+Invalid, 22.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 995 mSDsCounter, 4588 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25086 IncrementalHoareTripleChecker+Invalid, 29674 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4588 mSolverCounterUnsat, 7891 mSDtfsCounter, 25086 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2320 GetRequests, 2282 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19232occurred in iteration=20, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 30382 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 10982 NumberOfCodeBlocks, 10982 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 10956 ConstructedInterpolants, 0 QuantifiedInterpolants, 28185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2717 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 8011/8888 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Location Invariant Derived location invariant: (((((((((((((((((((0 <= ((long long) 97 + a0)) && (((long long) 42 + a4) <= 0)) && (a2 == 1)) || ((((long long) 42 + a4) <= 0) && (a2 == 4))) || (((((long long) 42 + a4) <= 0) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || ((5 <= a2) && (((long long) a4 + 86) <= 0))) || ((2 == a2) && (((long long) a4 + 86) <= 0))) || ((2 == a2) && (((long long) a0 + 147) <= 0))) || (((((long long) 42 + a4) <= 0) && (0 <= ((long long) 44 + a0))) && (3 == a2))) || (((((long long) 42 + a4) <= 0) && (44 <= a29)) && (5 <= a2))) || (((((long long) 42 + a4) <= 0) && (2 == a2)) && (((long long) a0 + 61) <= 0))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || ((((long long) 89 + a4) <= 0) && (((long long) a0 + 147) <= 0))) || (((44 <= a29) && (a2 == 1)) && (((long long) a4 + 86) <= 0))) || ((((long long) a4 + 86) <= 0) && (3 == a2))) || (((((long long) a0 + 147) <= 0) && (a2 == 1)) && (((long long) a4 + 86) <= 0))) || (((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (a2 == 1))) || (((((long long) 42 + a4) <= 0) && (5 <= a2)) && (((long long) a0 + 61) <= 0))) || (((((long long) 42 + a4) <= 0) && (2 == a2)) && (((long long) a29 + 144) <= 0))) RESULT: Ultimate proved your program to be correct! [2025-03-08 02:01:05,788 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