./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34327c45f5bb67454914f640ebf6bf1380406f6d81b1c1440537dbf8cffc8ffd --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:28:27,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:28:27,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:28:27,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:28:27,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:28:27,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:28:27,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:28:27,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:28:27,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:28:27,793 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:28:27,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:28:27,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:28:27,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:28:27,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:28:27,793 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:28:27,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:28:27,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:28:27,793 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:28:27,794 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:28:27,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:28:27,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:28:27,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:28:27,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:28:27,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:28:27,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:28:27,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:28:27,796 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34327c45f5bb67454914f640ebf6bf1380406f6d81b1c1440537dbf8cffc8ffd [2025-01-09 04:28:28,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:28:28,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:28:28,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:28:28,055 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:28:28,055 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:28:28,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c [2025-01-09 04:28:29,277 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3338e8989/05c119ea65da46b8b7e9cf62559aa15e/FLAGcf44b888e [2025-01-09 04:28:29,611 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:28:29,612 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c [2025-01-09 04:28:29,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3338e8989/05c119ea65da46b8b7e9cf62559aa15e/FLAGcf44b888e [2025-01-09 04:28:29,650 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3338e8989/05c119ea65da46b8b7e9cf62559aa15e [2025-01-09 04:28:29,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:28:29,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:28:29,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:28:29,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:28:29,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:28:29,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:28:29" (1/1) ... [2025-01-09 04:28:29,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e3eeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:29, skipping insertion in model container [2025-01-09 04:28:29,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:28:29" (1/1) ... [2025-01-09 04:28:29,703 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:28:30,051 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c[65471,65484] [2025-01-09 04:28:30,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:28:30,074 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:28:30,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c[65471,65484] [2025-01-09 04:28:30,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:28:30,182 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:28:30,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30 WrapperNode [2025-01-09 04:28:30,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:28:30,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:28:30,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:28:30,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:28:30,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,254 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2137 [2025-01-09 04:28:30,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:28:30,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:28:30,256 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:28:30,256 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:28:30,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,269 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,295 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]. [2025-01-09 04:28:30,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,319 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:28:30,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:28:30,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:28:30,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:28:30,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (1/1) ... [2025-01-09 04:28:30,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:28:30,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:28:30,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 04:28:30,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 04:28:30,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:28:30,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:28:30,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:28:30,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:28:30,573 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:28:30,575 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:28:32,370 INFO L? ?]: Removed 240 outVars from TransFormulas that were not future-live. [2025-01-09 04:28:32,370 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:28:32,391 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:28:32,391 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:28:32,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:28:32 BoogieIcfgContainer [2025-01-09 04:28:32,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:28:32,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:28:32,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:28:32,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:28:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:28:29" (1/3) ... [2025-01-09 04:28:32,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4280081c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:28:32, skipping insertion in model container [2025-01-09 04:28:32,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:28:30" (2/3) ... [2025-01-09 04:28:32,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4280081c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:28:32, skipping insertion in model container [2025-01-09 04:28:32,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:28:32" (3/3) ... [2025-01-09 04:28:32,399 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c [2025-01-09 04:28:32,408 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:28:32,410 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.5.2.ufo.BOUNDED-10.pals.c that has 1 procedures, 695 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 04:28:32,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:28:32,489 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;@19a2b6de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:28:32,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:28:32,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.87012987012987) internal successors, (1296), 694 states have internal predecessors, (1296), 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) [2025-01-09 04:28:32,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 04:28:32,511 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:32,512 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:32,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:32,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash 602192301, now seen corresponding path program 1 times [2025-01-09 04:28:32,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:32,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278513792] [2025-01-09 04:28:32,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:32,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:32,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 04:28:32,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 04:28:32,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:32,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:33,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:33,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278513792] [2025-01-09 04:28:33,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278513792] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:33,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:33,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 04:28:33,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284932134] [2025-01-09 04:28:33,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:33,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:28:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:33,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:28:33,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:28:33,061 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.87012987012987) internal successors, (1296), 694 states have internal predecessors, (1296), 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 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2025-01-09 04:28:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:33,110 INFO L93 Difference]: Finished difference Result 840 states and 1556 transitions. [2025-01-09 04:28:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:28:33,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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 153 [2025-01-09 04:28:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:33,121 INFO L225 Difference]: With dead ends: 840 [2025-01-09 04:28:33,122 INFO L226 Difference]: Without dead ends: 692 [2025-01-09 04:28:33,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:28:33,126 INFO L435 NwaCegarLoop]: 1294 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:33,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:33,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2025-01-09 04:28:33,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2025-01-09 04:28:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.8683068017366136) internal successors, (1291), 691 states have internal predecessors, (1291), 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) [2025-01-09 04:28:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1291 transitions. [2025-01-09 04:28:33,189 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1291 transitions. Word has length 153 [2025-01-09 04:28:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:33,192 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1291 transitions. [2025-01-09 04:28:33,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.5) internal successors, (153), 2 states have internal predecessors, (153), 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) [2025-01-09 04:28:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1291 transitions. [2025-01-09 04:28:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 04:28:33,195 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:33,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:33,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:28:33,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:33,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:33,199 INFO L85 PathProgramCache]: Analyzing trace with hash 92719211, now seen corresponding path program 1 times [2025-01-09 04:28:33,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:33,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275670863] [2025-01-09 04:28:33,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:33,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:33,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 04:28:33,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 04:28:33,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:33,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:33,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:33,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275670863] [2025-01-09 04:28:33,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275670863] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:33,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:33,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:28:33,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559243046] [2025-01-09 04:28:33,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:33,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:28:33,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:33,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:28:33,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:28:33,754 INFO L87 Difference]: Start difference. First operand 692 states and 1291 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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) [2025-01-09 04:28:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:33,907 INFO L93 Difference]: Finished difference Result 837 states and 1550 transitions. [2025-01-09 04:28:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:28:33,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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 153 [2025-01-09 04:28:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:33,910 INFO L225 Difference]: With dead ends: 837 [2025-01-09 04:28:33,912 INFO L226 Difference]: Without dead ends: 692 [2025-01-09 04:28:33,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:28:33,914 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 0 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:33,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5086 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:33,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2025-01-09 04:28:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2025-01-09 04:28:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 691 states have (on average 1.7742402315484804) internal successors, (1226), 691 states have internal predecessors, (1226), 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) [2025-01-09 04:28:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1226 transitions. [2025-01-09 04:28:33,940 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1226 transitions. Word has length 153 [2025-01-09 04:28:33,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:33,940 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1226 transitions. [2025-01-09 04:28:33,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 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) [2025-01-09 04:28:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1226 transitions. [2025-01-09 04:28:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-01-09 04:28:33,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:33,944 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:33,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:28:33,944 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:33,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:33,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1706492215, now seen corresponding path program 1 times [2025-01-09 04:28:33,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:33,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627283613] [2025-01-09 04:28:33,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:33,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:33,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-01-09 04:28:34,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-01-09 04:28:34,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:34,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:34,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:34,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627283613] [2025-01-09 04:28:34,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627283613] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:34,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:34,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:34,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400692976] [2025-01-09 04:28:34,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:34,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:34,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:34,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:34,256 INFO L87 Difference]: Start difference. First operand 692 states and 1226 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2025-01-09 04:28:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:34,314 INFO L93 Difference]: Finished difference Result 960 states and 1710 transitions. [2025-01-09 04:28:34,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:34,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 217 [2025-01-09 04:28:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:34,320 INFO L225 Difference]: With dead ends: 960 [2025-01-09 04:28:34,320 INFO L226 Difference]: Without dead ends: 819 [2025-01-09 04:28:34,321 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 [2025-01-09 04:28:34,323 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 221 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2382 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:34,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2382 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2025-01-09 04:28:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 817. [2025-01-09 04:28:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 816 states have (on average 1.775735294117647) internal successors, (1449), 816 states have internal predecessors, (1449), 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) [2025-01-09 04:28:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1449 transitions. [2025-01-09 04:28:34,341 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1449 transitions. Word has length 217 [2025-01-09 04:28:34,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:34,343 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1449 transitions. [2025-01-09 04:28:34,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2025-01-09 04:28:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1449 transitions. [2025-01-09 04:28:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-01-09 04:28:34,345 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:34,345 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:34,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:28:34,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:34,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:34,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1066246115, now seen corresponding path program 1 times [2025-01-09 04:28:34,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:34,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206671280] [2025-01-09 04:28:34,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:34,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:34,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-01-09 04:28:34,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-01-09 04:28:34,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:34,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:34,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:34,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206671280] [2025-01-09 04:28:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206671280] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:34,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:34,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:34,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476776104] [2025-01-09 04:28:34,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:34,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:34,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:34,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:34,578 INFO L87 Difference]: Start difference. First operand 817 states and 1449 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2025-01-09 04:28:34,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:34,614 INFO L93 Difference]: Finished difference Result 1325 states and 2361 transitions. [2025-01-09 04:28:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:34,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 221 [2025-01-09 04:28:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:34,620 INFO L225 Difference]: With dead ends: 1325 [2025-01-09 04:28:34,620 INFO L226 Difference]: Without dead ends: 1059 [2025-01-09 04:28:34,621 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 [2025-01-09 04:28:34,622 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 221 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:34,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2025-01-09 04:28:34,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1057. [2025-01-09 04:28:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 1.7803030303030303) internal successors, (1880), 1056 states have internal predecessors, (1880), 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) [2025-01-09 04:28:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1880 transitions. [2025-01-09 04:28:34,654 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1880 transitions. Word has length 221 [2025-01-09 04:28:34,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:34,654 INFO L471 AbstractCegarLoop]: Abstraction has 1057 states and 1880 transitions. [2025-01-09 04:28:34,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2025-01-09 04:28:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1880 transitions. [2025-01-09 04:28:34,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-01-09 04:28:34,657 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:34,657 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:34,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:28:34,658 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:34,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:34,658 INFO L85 PathProgramCache]: Analyzing trace with hash 110058941, now seen corresponding path program 1 times [2025-01-09 04:28:34,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:34,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898182407] [2025-01-09 04:28:34,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:34,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:34,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-01-09 04:28:34,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-01-09 04:28:34,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:34,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:34,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:34,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898182407] [2025-01-09 04:28:34,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898182407] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:34,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:34,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:34,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721898926] [2025-01-09 04:28:34,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:34,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:34,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:34,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:34,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:34,930 INFO L87 Difference]: Start difference. First operand 1057 states and 1880 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2025-01-09 04:28:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:34,976 INFO L93 Difference]: Finished difference Result 2021 states and 3610 transitions. [2025-01-09 04:28:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:34,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 225 [2025-01-09 04:28:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:34,982 INFO L225 Difference]: With dead ends: 2021 [2025-01-09 04:28:34,983 INFO L226 Difference]: Without dead ends: 1515 [2025-01-09 04:28:34,984 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 [2025-01-09 04:28:34,985 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 213 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:34,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2391 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:34,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2025-01-09 04:28:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1513. [2025-01-09 04:28:35,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 1.783068783068783) internal successors, (2696), 1512 states have internal predecessors, (2696), 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) [2025-01-09 04:28:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2696 transitions. [2025-01-09 04:28:35,023 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2696 transitions. Word has length 225 [2025-01-09 04:28:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:35,023 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2696 transitions. [2025-01-09 04:28:35,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2025-01-09 04:28:35,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2696 transitions. [2025-01-09 04:28:35,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-01-09 04:28:35,027 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:35,027 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:35,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:28:35,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:35,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:35,028 INFO L85 PathProgramCache]: Analyzing trace with hash -669730729, now seen corresponding path program 1 times [2025-01-09 04:28:35,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:35,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898106641] [2025-01-09 04:28:35,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:35,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 229 statements into 1 equivalence classes. [2025-01-09 04:28:35,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 229 of 229 statements. [2025-01-09 04:28:35,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:35,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:35,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898106641] [2025-01-09 04:28:35,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898106641] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:35,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:35,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:35,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210168920] [2025-01-09 04:28:35,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:35,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:35,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:35,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:35,266 INFO L87 Difference]: Start difference. First operand 1513 states and 2696 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2025-01-09 04:28:35,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:35,312 INFO L93 Difference]: Finished difference Result 3341 states and 5970 transitions. [2025-01-09 04:28:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:35,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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 229 [2025-01-09 04:28:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:35,321 INFO L225 Difference]: With dead ends: 3341 [2025-01-09 04:28:35,321 INFO L226 Difference]: Without dead ends: 2379 [2025-01-09 04:28:35,324 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 [2025-01-09 04:28:35,325 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 205 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:35,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2392 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:35,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2025-01-09 04:28:35,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2377. [2025-01-09 04:28:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 2376 states have (on average 1.7828282828282829) internal successors, (4236), 2376 states have internal predecessors, (4236), 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) [2025-01-09 04:28:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 4236 transitions. [2025-01-09 04:28:35,400 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 4236 transitions. Word has length 229 [2025-01-09 04:28:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:35,402 INFO L471 AbstractCegarLoop]: Abstraction has 2377 states and 4236 transitions. [2025-01-09 04:28:35,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2025-01-09 04:28:35,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 4236 transitions. [2025-01-09 04:28:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2025-01-09 04:28:35,405 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:35,405 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:35,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:28:35,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:35,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:35,406 INFO L85 PathProgramCache]: Analyzing trace with hash 437530545, now seen corresponding path program 1 times [2025-01-09 04:28:35,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:35,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002320933] [2025-01-09 04:28:35,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:35,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:35,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 233 statements into 1 equivalence classes. [2025-01-09 04:28:35,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 233 of 233 statements. [2025-01-09 04:28:35,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:35,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:35,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002320933] [2025-01-09 04:28:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002320933] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:35,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:35,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534006201] [2025-01-09 04:28:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:35,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:35,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:35,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:35,602 INFO L87 Difference]: Start difference. First operand 2377 states and 4236 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2025-01-09 04:28:35,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:35,662 INFO L93 Difference]: Finished difference Result 5837 states and 10414 transitions. [2025-01-09 04:28:35,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:35,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 233 [2025-01-09 04:28:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:35,677 INFO L225 Difference]: With dead ends: 5837 [2025-01-09 04:28:35,677 INFO L226 Difference]: Without dead ends: 4011 [2025-01-09 04:28:35,682 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 [2025-01-09 04:28:35,683 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 197 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:35,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 2393 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4011 states. [2025-01-09 04:28:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4011 to 4009. [2025-01-09 04:28:35,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4009 states, 4008 states have (on average 1.7794411177644711) internal successors, (7132), 4008 states have internal predecessors, (7132), 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) [2025-01-09 04:28:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4009 states to 4009 states and 7132 transitions. [2025-01-09 04:28:35,765 INFO L78 Accepts]: Start accepts. Automaton has 4009 states and 7132 transitions. Word has length 233 [2025-01-09 04:28:35,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:35,766 INFO L471 AbstractCegarLoop]: Abstraction has 4009 states and 7132 transitions. [2025-01-09 04:28:35,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2025-01-09 04:28:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states and 7132 transitions. [2025-01-09 04:28:35,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2025-01-09 04:28:35,771 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:35,771 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:35,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 04:28:35,771 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:35,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1337213899, now seen corresponding path program 1 times [2025-01-09 04:28:35,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:35,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554866750] [2025-01-09 04:28:35,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:35,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:35,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 237 statements into 1 equivalence classes. [2025-01-09 04:28:35,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 237 of 237 statements. [2025-01-09 04:28:35,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:35,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:36,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:36,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554866750] [2025-01-09 04:28:36,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554866750] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:36,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:36,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 04:28:36,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930672475] [2025-01-09 04:28:36,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:36,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 04:28:36,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:36,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 04:28:36,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:28:36,123 INFO L87 Difference]: Start difference. First operand 4009 states and 7132 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:36,650 INFO L93 Difference]: Finished difference Result 23805 states and 42646 transitions. [2025-01-09 04:28:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:28:36,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2025-01-09 04:28:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:36,719 INFO L225 Difference]: With dead ends: 23805 [2025-01-09 04:28:36,720 INFO L226 Difference]: Without dead ends: 20347 [2025-01-09 04:28:36,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2025-01-09 04:28:36,732 INFO L435 NwaCegarLoop]: 1221 mSDtfsCounter, 2517 mSDsluCounter, 10581 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 11802 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:36,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 11802 Invalid, 382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:28:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20347 states. [2025-01-09 04:28:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20347 to 7328. [2025-01-09 04:28:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7328 states, 7327 states have (on average 1.7794458850825714) internal successors, (13038), 7327 states have internal predecessors, (13038), 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) [2025-01-09 04:28:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 13038 transitions. [2025-01-09 04:28:37,085 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 13038 transitions. Word has length 237 [2025-01-09 04:28:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:37,085 INFO L471 AbstractCegarLoop]: Abstraction has 7328 states and 13038 transitions. [2025-01-09 04:28:37,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:37,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 13038 transitions. [2025-01-09 04:28:37,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-01-09 04:28:37,092 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:37,092 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:37,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 04:28:37,093 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:37,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash 532545786, now seen corresponding path program 1 times [2025-01-09 04:28:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262890143] [2025-01-09 04:28:37,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:37,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 238 statements into 1 equivalence classes. [2025-01-09 04:28:37,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 238 of 238 statements. [2025-01-09 04:28:37,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:37,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:37,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262890143] [2025-01-09 04:28:37,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262890143] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:37,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:37,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:28:37,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889402998] [2025-01-09 04:28:37,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:37,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:28:37,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:37,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:28:37,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:28:37,347 INFO L87 Difference]: Start difference. First operand 7328 states and 13038 transitions. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:37,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:37,539 INFO L93 Difference]: Finished difference Result 21287 states and 38031 transitions. [2025-01-09 04:28:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:28:37,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2025-01-09 04:28:37,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:37,574 INFO L225 Difference]: With dead ends: 21287 [2025-01-09 04:28:37,574 INFO L226 Difference]: Without dead ends: 14510 [2025-01-09 04:28:37,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:28:37,590 INFO L435 NwaCegarLoop]: 1229 mSDtfsCounter, 735 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:37,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 3851 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:37,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14510 states. [2025-01-09 04:28:37,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14510 to 10886. [2025-01-09 04:28:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10886 states, 10885 states have (on average 1.780064308681672) internal successors, (19376), 10885 states have internal predecessors, (19376), 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) [2025-01-09 04:28:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10886 states to 10886 states and 19376 transitions. [2025-01-09 04:28:37,941 INFO L78 Accepts]: Start accepts. Automaton has 10886 states and 19376 transitions. Word has length 238 [2025-01-09 04:28:37,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:37,942 INFO L471 AbstractCegarLoop]: Abstraction has 10886 states and 19376 transitions. [2025-01-09 04:28:37,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:37,942 INFO L276 IsEmpty]: Start isEmpty. Operand 10886 states and 19376 transitions. [2025-01-09 04:28:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-01-09 04:28:37,949 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:37,949 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:37,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 04:28:37,949 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:37,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:37,950 INFO L85 PathProgramCache]: Analyzing trace with hash -995537007, now seen corresponding path program 1 times [2025-01-09 04:28:37,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:37,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805680824] [2025-01-09 04:28:37,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:37,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:37,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-01-09 04:28:37,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-01-09 04:28:37,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:37,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:38,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:38,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805680824] [2025-01-09 04:28:38,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805680824] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:38,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:38,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:38,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104824463] [2025-01-09 04:28:38,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:38,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:38,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:38,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:38,119 INFO L87 Difference]: Start difference. First operand 10886 states and 19376 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:38,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:38,252 INFO L93 Difference]: Finished difference Result 24013 states and 42846 transitions. [2025-01-09 04:28:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:38,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2025-01-09 04:28:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:38,284 INFO L225 Difference]: With dead ends: 24013 [2025-01-09 04:28:38,284 INFO L226 Difference]: Without dead ends: 16773 [2025-01-09 04:28:38,299 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 [2025-01-09 04:28:38,299 INFO L435 NwaCegarLoop]: 1427 mSDtfsCounter, 230 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:38,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 2615 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:38,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16773 states. [2025-01-09 04:28:38,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16773 to 16771. [2025-01-09 04:28:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16771 states, 16770 states have (on average 1.7762075134168158) internal successors, (29787), 16770 states have internal predecessors, (29787), 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) [2025-01-09 04:28:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16771 states to 16771 states and 29787 transitions. [2025-01-09 04:28:38,662 INFO L78 Accepts]: Start accepts. Automaton has 16771 states and 29787 transitions. Word has length 239 [2025-01-09 04:28:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:38,662 INFO L471 AbstractCegarLoop]: Abstraction has 16771 states and 29787 transitions. [2025-01-09 04:28:38,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 16771 states and 29787 transitions. [2025-01-09 04:28:38,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-01-09 04:28:38,666 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:38,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:38,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 04:28:38,666 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:38,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -910249615, now seen corresponding path program 1 times [2025-01-09 04:28:38,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:38,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112927125] [2025-01-09 04:28:38,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:38,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:38,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-01-09 04:28:38,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-01-09 04:28:38,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:38,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:38,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:38,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112927125] [2025-01-09 04:28:38,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112927125] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:38,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:38,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638992388] [2025-01-09 04:28:38,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:38,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:38,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:38,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:38,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:38,812 INFO L87 Difference]: Start difference. First operand 16771 states and 29787 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:39,056 INFO L93 Difference]: Finished difference Result 32435 states and 57586 transitions. [2025-01-09 04:28:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:39,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2025-01-09 04:28:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:39,100 INFO L225 Difference]: With dead ends: 32435 [2025-01-09 04:28:39,100 INFO L226 Difference]: Without dead ends: 23729 [2025-01-09 04:28:39,116 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 [2025-01-09 04:28:39,117 INFO L435 NwaCegarLoop]: 1416 mSDtfsCounter, 222 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2605 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:39,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 2605 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23729 states. [2025-01-09 04:28:39,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23729 to 23727. [2025-01-09 04:28:39,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23727 states, 23726 states have (on average 1.7691561999494225) internal successors, (41975), 23726 states have internal predecessors, (41975), 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) [2025-01-09 04:28:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23727 states to 23727 states and 41975 transitions. [2025-01-09 04:28:39,677 INFO L78 Accepts]: Start accepts. Automaton has 23727 states and 41975 transitions. Word has length 239 [2025-01-09 04:28:39,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:39,678 INFO L471 AbstractCegarLoop]: Abstraction has 23727 states and 41975 transitions. [2025-01-09 04:28:39,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 23727 states and 41975 transitions. [2025-01-09 04:28:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-01-09 04:28:39,682 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:39,683 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 04:28:39,683 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:39,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2017201327, now seen corresponding path program 1 times [2025-01-09 04:28:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:39,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153746212] [2025-01-09 04:28:39,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:39,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-01-09 04:28:39,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-01-09 04:28:39,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:39,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:39,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153746212] [2025-01-09 04:28:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153746212] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:39,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:39,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89499138] [2025-01-09 04:28:39,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:39,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:39,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:39,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:39,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:39,862 INFO L87 Difference]: Start difference. First operand 23727 states and 41975 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:40,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:40,179 INFO L93 Difference]: Finished difference Result 45935 states and 81222 transitions. [2025-01-09 04:28:40,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:40,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2025-01-09 04:28:40,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:40,246 INFO L225 Difference]: With dead ends: 45935 [2025-01-09 04:28:40,247 INFO L226 Difference]: Without dead ends: 33517 [2025-01-09 04:28:40,268 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 [2025-01-09 04:28:40,269 INFO L435 NwaCegarLoop]: 1396 mSDtfsCounter, 214 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:40,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 2586 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:40,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33517 states. [2025-01-09 04:28:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33517 to 33515. [2025-01-09 04:28:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33515 states, 33514 states have (on average 1.761263949394283) internal successors, (59027), 33514 states have internal predecessors, (59027), 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) [2025-01-09 04:28:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33515 states to 33515 states and 59027 transitions. [2025-01-09 04:28:40,905 INFO L78 Accepts]: Start accepts. Automaton has 33515 states and 59027 transitions. Word has length 239 [2025-01-09 04:28:40,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:40,905 INFO L471 AbstractCegarLoop]: Abstraction has 33515 states and 59027 transitions. [2025-01-09 04:28:40,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:40,905 INFO L276 IsEmpty]: Start isEmpty. Operand 33515 states and 59027 transitions. [2025-01-09 04:28:40,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-01-09 04:28:40,907 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:40,907 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:40,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 04:28:40,908 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:40,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:40,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1553536305, now seen corresponding path program 1 times [2025-01-09 04:28:40,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:40,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922542220] [2025-01-09 04:28:40,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:40,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:40,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-01-09 04:28:40,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-01-09 04:28:40,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:40,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:41,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:41,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922542220] [2025-01-09 04:28:41,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922542220] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:41,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:41,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:41,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630209571] [2025-01-09 04:28:41,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:41,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:41,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:41,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:41,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:41,047 INFO L87 Difference]: Start difference. First operand 33515 states and 59027 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:41,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:41,494 INFO L93 Difference]: Finished difference Result 64899 states and 114226 transitions. [2025-01-09 04:28:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:41,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2025-01-09 04:28:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:41,571 INFO L225 Difference]: With dead ends: 64899 [2025-01-09 04:28:41,572 INFO L226 Difference]: Without dead ends: 47233 [2025-01-09 04:28:41,588 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 [2025-01-09 04:28:41,589 INFO L435 NwaCegarLoop]: 1376 mSDtfsCounter, 206 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:41,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 2567 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:28:41,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47233 states. [2025-01-09 04:28:42,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47233 to 47231. [2025-01-09 04:28:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47231 states, 47230 states have (on average 1.7523819606182511) internal successors, (82765), 47230 states have internal predecessors, (82765), 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) [2025-01-09 04:28:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47231 states to 47231 states and 82765 transitions. [2025-01-09 04:28:42,318 INFO L78 Accepts]: Start accepts. Automaton has 47231 states and 82765 transitions. Word has length 239 [2025-01-09 04:28:42,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:42,318 INFO L471 AbstractCegarLoop]: Abstraction has 47231 states and 82765 transitions. [2025-01-09 04:28:42,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 47231 states and 82765 transitions. [2025-01-09 04:28:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-01-09 04:28:42,322 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:42,323 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:42,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 04:28:42,323 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:42,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:42,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2044848367, now seen corresponding path program 1 times [2025-01-09 04:28:42,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:42,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075187398] [2025-01-09 04:28:42,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:42,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:42,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-01-09 04:28:42,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-01-09 04:28:42,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:42,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:42,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:42,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075187398] [2025-01-09 04:28:42,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075187398] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:42,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:42,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:28:42,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296944481] [2025-01-09 04:28:42,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:42,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:28:42,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:42,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:28:42,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:28:42,762 INFO L87 Difference]: Start difference. First operand 47231 states and 82765 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:43,251 INFO L93 Difference]: Finished difference Result 91419 states and 160062 transitions. [2025-01-09 04:28:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:28:43,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2025-01-09 04:28:43,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:43,355 INFO L225 Difference]: With dead ends: 91419 [2025-01-09 04:28:43,356 INFO L226 Difference]: Without dead ends: 66361 [2025-01-09 04:28:43,379 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 [2025-01-09 04:28:43,380 INFO L435 NwaCegarLoop]: 1356 mSDtfsCounter, 198 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:43,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 2548 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:43,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66361 states. [2025-01-09 04:28:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66361 to 66359. [2025-01-09 04:28:44,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66359 states, 66358 states have (on average 1.7423219506314236) internal successors, (115617), 66358 states have internal predecessors, (115617), 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) [2025-01-09 04:28:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66359 states to 66359 states and 115617 transitions. [2025-01-09 04:28:44,280 INFO L78 Accepts]: Start accepts. Automaton has 66359 states and 115617 transitions. Word has length 239 [2025-01-09 04:28:44,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:44,281 INFO L471 AbstractCegarLoop]: Abstraction has 66359 states and 115617 transitions. [2025-01-09 04:28:44,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:44,281 INFO L276 IsEmpty]: Start isEmpty. Operand 66359 states and 115617 transitions. [2025-01-09 04:28:44,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2025-01-09 04:28:44,282 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:44,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:44,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 04:28:44,283 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:44,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:44,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1526642402, now seen corresponding path program 1 times [2025-01-09 04:28:44,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:44,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303968000] [2025-01-09 04:28:44,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:44,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:44,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 239 statements into 1 equivalence classes. [2025-01-09 04:28:44,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 239 of 239 statements. [2025-01-09 04:28:44,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:44,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:44,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:44,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303968000] [2025-01-09 04:28:44,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303968000] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:44,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:44,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:28:44,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295592739] [2025-01-09 04:28:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:44,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:28:44,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:44,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:28:44,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:28:44,604 INFO L87 Difference]: Start difference. First operand 66359 states and 115617 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:45,672 INFO L93 Difference]: Finished difference Result 219525 states and 382555 transitions. [2025-01-09 04:28:45,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:28:45,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2025-01-09 04:28:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:45,919 INFO L225 Difference]: With dead ends: 219525 [2025-01-09 04:28:45,919 INFO L226 Difference]: Without dead ends: 153767 [2025-01-09 04:28:45,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:28:45,993 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 734 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:45,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 3839 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:46,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153767 states. [2025-01-09 04:28:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153767 to 109794. [2025-01-09 04:28:47,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109794 states, 109793 states have (on average 1.734791835545071) internal successors, (190468), 109793 states have internal predecessors, (190468), 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) [2025-01-09 04:28:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109794 states to 109794 states and 190468 transitions. [2025-01-09 04:28:48,103 INFO L78 Accepts]: Start accepts. Automaton has 109794 states and 190468 transitions. Word has length 239 [2025-01-09 04:28:48,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:48,104 INFO L471 AbstractCegarLoop]: Abstraction has 109794 states and 190468 transitions. [2025-01-09 04:28:48,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:28:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 109794 states and 190468 transitions. [2025-01-09 04:28:48,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-01-09 04:28:48,105 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:48,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:48,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 04:28:48,106 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:48,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1847096527, now seen corresponding path program 1 times [2025-01-09 04:28:48,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:48,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560740919] [2025-01-09 04:28:48,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:48,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:48,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-01-09 04:28:48,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-01-09 04:28:48,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:48,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:48,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:48,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560740919] [2025-01-09 04:28:48,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560740919] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:48,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:48,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:28:48,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614075350] [2025-01-09 04:28:48,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:48,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:28:48,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:48,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:28:48,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:28:48,258 INFO L87 Difference]: Start difference. First operand 109794 states and 190468 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 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) [2025-01-09 04:28:50,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:50,076 INFO L93 Difference]: Finished difference Result 363279 states and 630349 transitions. [2025-01-09 04:28:50,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:28:50,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 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 240 [2025-01-09 04:28:50,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:50,513 INFO L225 Difference]: With dead ends: 363279 [2025-01-09 04:28:50,513 INFO L226 Difference]: Without dead ends: 254086 [2025-01-09 04:28:50,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:28:50,618 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 732 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:50,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 3841 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:50,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254086 states. [2025-01-09 04:28:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254086 to 181497. [2025-01-09 04:28:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181497 states, 181496 states have (on average 1.7272832459117555) internal successors, (313495), 181496 states have internal predecessors, (313495), 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) [2025-01-09 04:28:54,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181497 states to 181497 states and 313495 transitions. [2025-01-09 04:28:54,173 INFO L78 Accepts]: Start accepts. Automaton has 181497 states and 313495 transitions. Word has length 240 [2025-01-09 04:28:54,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:28:54,173 INFO L471 AbstractCegarLoop]: Abstraction has 181497 states and 313495 transitions. [2025-01-09 04:28:54,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 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) [2025-01-09 04:28:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 181497 states and 313495 transitions. [2025-01-09 04:28:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2025-01-09 04:28:54,175 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:28:54,175 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:28:54,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 04:28:54,176 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:28:54,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:28:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1110183417, now seen corresponding path program 1 times [2025-01-09 04:28:54,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:28:54,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067921642] [2025-01-09 04:28:54,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:28:54,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:28:54,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 241 statements into 1 equivalence classes. [2025-01-09 04:28:54,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 241 of 241 statements. [2025-01-09 04:28:54,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:28:54,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:28:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:28:54,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:28:54,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067921642] [2025-01-09 04:28:54,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067921642] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:28:54,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:28:54,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:28:54,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233844735] [2025-01-09 04:28:54,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:28:54,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:28:54,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:28:54,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:28:54,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:28:54,384 INFO L87 Difference]: Start difference. First operand 181497 states and 313495 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2025-01-09 04:28:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:28:57,916 INFO L93 Difference]: Finished difference Result 598865 states and 1034687 transitions. [2025-01-09 04:28:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:28:57,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 241 [2025-01-09 04:28:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:28:58,772 INFO L225 Difference]: With dead ends: 598865 [2025-01-09 04:28:58,772 INFO L226 Difference]: Without dead ends: 417969 [2025-01-09 04:28:58,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:28:58,910 INFO L435 NwaCegarLoop]: 1214 mSDtfsCounter, 730 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:28:58,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 3781 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:28:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417969 states. [2025-01-09 04:29:03,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417969 to 299008. [2025-01-09 04:29:04,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299008 states, 299007 states have (on average 1.719872778898153) internal successors, (514254), 299007 states have internal predecessors, (514254), 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) [2025-01-09 04:29:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299008 states to 299008 states and 514254 transitions. [2025-01-09 04:29:04,751 INFO L78 Accepts]: Start accepts. Automaton has 299008 states and 514254 transitions. Word has length 241 [2025-01-09 04:29:04,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:29:04,753 INFO L471 AbstractCegarLoop]: Abstraction has 299008 states and 514254 transitions. [2025-01-09 04:29:04,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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) [2025-01-09 04:29:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 299008 states and 514254 transitions. [2025-01-09 04:29:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2025-01-09 04:29:04,754 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:29:04,755 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:29:04,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 04:29:04,755 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:29:04,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:29:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1534414488, now seen corresponding path program 1 times [2025-01-09 04:29:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:29:04,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262694906] [2025-01-09 04:29:04,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:29:04,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:29:04,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 242 statements into 1 equivalence classes. [2025-01-09 04:29:04,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 242 of 242 statements. [2025-01-09 04:29:04,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:29:04,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:29:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:29:05,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:29:05,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262694906] [2025-01-09 04:29:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262694906] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:29:05,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:29:05,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:29:05,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316728562] [2025-01-09 04:29:05,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:29:05,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:29:05,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:29:05,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:29:05,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:29:05,293 INFO L87 Difference]: Start difference. First operand 299008 states and 514254 transitions. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2025-01-09 04:29:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:29:10,326 INFO L93 Difference]: Finished difference Result 979715 states and 1685609 transitions. [2025-01-09 04:29:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:29:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 242 [2025-01-09 04:29:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:29:12,070 INFO L225 Difference]: With dead ends: 979715 [2025-01-09 04:29:12,070 INFO L226 Difference]: Without dead ends: 681308 [2025-01-09 04:29:12,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:29:12,242 INFO L435 NwaCegarLoop]: 1215 mSDtfsCounter, 728 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:29:12,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3845 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:29:12,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681308 states.