./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2901.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2901.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4ad6c51ce95ad654c6ab63ce2f8a8f0599e297ad04e11ab2bf70b8e3bd88d357 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:56:19,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:56:20,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:56:20,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:56:20,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:56:20,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:56:20,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:56:20,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:56:20,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:56:20,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:56:20,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:56:20,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:56:20,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:56:20,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:56:20,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:56:20,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:56:20,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:56:20,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:56:20,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:56:20,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:56:20,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:56:20,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:56:20,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:56:20,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:56:20,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:56:20,085 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:56:20,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:56:20,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:56:20,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:56:20,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:56:20,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:56:20,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:56:20,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:56:20,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:56:20,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:56:20,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:56:20,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:56:20,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:56:20,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:56:20,088 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ad6c51ce95ad654c6ab63ce2f8a8f0599e297ad04e11ab2bf70b8e3bd88d357 [2024-11-16 11:56:20,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:56:20,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:56:20,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:56:20,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:56:20,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:56:20,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2901.c [2024-11-16 11:56:21,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:56:22,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:56:22,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2901.c [2024-11-16 11:56:22,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd8c52c9a/24bafc22285f492884dda67add4010e9/FLAGcc2701a2a [2024-11-16 11:56:22,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd8c52c9a/24bafc22285f492884dda67add4010e9 [2024-11-16 11:56:22,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:56:22,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:56:22,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:56:22,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:56:22,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:56:22,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:22" (1/1) ... [2024-11-16 11:56:22,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55930001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:22, skipping insertion in model container [2024-11-16 11:56:22,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:56:22" (1/1) ... [2024-11-16 11:56:22,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:56:22,674 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2901.c[1257,1270] [2024-11-16 11:56:23,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:56:23,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:56:23,131 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2901.c[1257,1270] [2024-11-16 11:56:23,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:56:23,438 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:56:23,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23 WrapperNode [2024-11-16 11:56:23,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:56:23,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:56:23,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:56:23,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:56:23,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:23,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:24,264 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5737 [2024-11-16 11:56:24,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:56:24,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:56:24,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:56:24,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:56:24,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:24,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:24,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:24,715 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]. [2024-11-16 11:56:24,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:24,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:25,001 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:25,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:25,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:25,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:25,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:56:25,183 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:56:25,183 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:56:25,183 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:56:25,184 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (1/1) ... [2024-11-16 11:56:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:56:25,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:56:25,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 11:56:25,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 11:56:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:56:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:56:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:56:25,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:56:25,746 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:56:25,750 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:56:30,820 INFO L? ?]: Removed 3760 outVars from TransFormulas that were not future-live. [2024-11-16 11:56:30,820 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:56:31,003 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:56:31,003 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:56:31,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:31 BoogieIcfgContainer [2024-11-16 11:56:31,004 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:56:31,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:56:31,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:56:31,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:56:31,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:56:22" (1/3) ... [2024-11-16 11:56:31,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372105b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:31, skipping insertion in model container [2024-11-16 11:56:31,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:56:23" (2/3) ... [2024-11-16 11:56:31,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372105b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:56:31, skipping insertion in model container [2024-11-16 11:56:31,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:56:31" (3/3) ... [2024-11-16 11:56:31,014 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2901.c [2024-11-16 11:56:31,035 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:56:31,035 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:56:31,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:56:31,147 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;@554e0750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:56:31,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:56:31,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 1475 states, 1473 states have (on average 1.4989816700610998) internal successors, (2208), 1474 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:31,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 11:56:31,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:31,176 INFO L215 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] [2024-11-16 11:56:31,177 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:31,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:31,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1657701608, now seen corresponding path program 1 times [2024-11-16 11:56:31,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:31,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887593647] [2024-11-16 11:56:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:31,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:35,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:35,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:35,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887593647] [2024-11-16 11:56:35,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887593647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:35,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:35,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:56:35,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167248040] [2024-11-16 11:56:35,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:35,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:56:35,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:35,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:56:35,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:35,283 INFO L87 Difference]: Start difference. First operand has 1475 states, 1473 states have (on average 1.4989816700610998) internal successors, (2208), 1474 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:36,290 INFO L93 Difference]: Finished difference Result 2877 states and 4311 transitions. [2024-11-16 11:56:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:56:36,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-16 11:56:36,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:36,319 INFO L225 Difference]: With dead ends: 2877 [2024-11-16 11:56:36,320 INFO L226 Difference]: Without dead ends: 1472 [2024-11-16 11:56:36,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:36,331 INFO L432 NwaCegarLoop]: 1835 mSDtfsCounter, 0 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:36,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5500 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:56:36,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2024-11-16 11:56:36,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2024-11-16 11:56:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 1.4983004758667573) internal successors, (2204), 1471 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2204 transitions. [2024-11-16 11:56:36,454 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2204 transitions. Word has length 116 [2024-11-16 11:56:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:36,455 INFO L471 AbstractCegarLoop]: Abstraction has 1472 states and 2204 transitions. [2024-11-16 11:56:36,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2204 transitions. [2024-11-16 11:56:36,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 11:56:36,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:36,462 INFO L215 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] [2024-11-16 11:56:36,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:56:36,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:36,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash -5802153, now seen corresponding path program 1 times [2024-11-16 11:56:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998095993] [2024-11-16 11:56:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:36,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:37,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:37,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998095993] [2024-11-16 11:56:37,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998095993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:37,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:37,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:56:37,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560968733] [2024-11-16 11:56:37,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:37,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:56:37,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:37,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:56:37,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:37,846 INFO L87 Difference]: Start difference. First operand 1472 states and 2204 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:38,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:38,623 INFO L93 Difference]: Finished difference Result 2876 states and 4307 transitions. [2024-11-16 11:56:38,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:56:38,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-16 11:56:38,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:38,633 INFO L225 Difference]: With dead ends: 2876 [2024-11-16 11:56:38,633 INFO L226 Difference]: Without dead ends: 1474 [2024-11-16 11:56:38,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:38,639 INFO L432 NwaCegarLoop]: 1835 mSDtfsCounter, 0 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5497 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:38,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5497 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:56:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2024-11-16 11:56:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2024-11-16 11:56:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 1.4976238968092328) internal successors, (2206), 1473 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2206 transitions. [2024-11-16 11:56:38,674 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2206 transitions. Word has length 117 [2024-11-16 11:56:38,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:38,676 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2206 transitions. [2024-11-16 11:56:38,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2206 transitions. [2024-11-16 11:56:38,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 11:56:38,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:38,679 INFO L215 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] [2024-11-16 11:56:38,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:56:38,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:38,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:38,680 INFO L85 PathProgramCache]: Analyzing trace with hash -432621011, now seen corresponding path program 1 times [2024-11-16 11:56:38,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:38,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929907475] [2024-11-16 11:56:38,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:41,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:41,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929907475] [2024-11-16 11:56:41,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929907475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:41,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:41,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:56:41,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652077381] [2024-11-16 11:56:41,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:41,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:56:41,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:56:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:41,110 INFO L87 Difference]: Start difference. First operand 1474 states and 2206 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:41,874 INFO L93 Difference]: Finished difference Result 2880 states and 4311 transitions. [2024-11-16 11:56:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:56:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 11:56:41,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:41,883 INFO L225 Difference]: With dead ends: 2880 [2024-11-16 11:56:41,883 INFO L226 Difference]: Without dead ends: 1476 [2024-11-16 11:56:41,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:56:41,888 INFO L432 NwaCegarLoop]: 1835 mSDtfsCounter, 0 mSDsluCounter, 3662 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5497 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:41,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5497 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:56:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-16 11:56:41,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1476. [2024-11-16 11:56:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 1.4969491525423728) internal successors, (2208), 1475 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2208 transitions. [2024-11-16 11:56:41,920 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2208 transitions. Word has length 118 [2024-11-16 11:56:41,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:41,922 INFO L471 AbstractCegarLoop]: Abstraction has 1476 states and 2208 transitions. [2024-11-16 11:56:41,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:41,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2208 transitions. [2024-11-16 11:56:41,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 11:56:41,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:41,925 INFO L215 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] [2024-11-16 11:56:41,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:56:41,925 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:41,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2116651886, now seen corresponding path program 1 times [2024-11-16 11:56:41,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:41,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671887630] [2024-11-16 11:56:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:41,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:43,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:43,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671887630] [2024-11-16 11:56:43,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671887630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:43,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683593925] [2024-11-16 11:56:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:43,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:43,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:43,125 INFO L87 Difference]: Start difference. First operand 1476 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:44,037 INFO L93 Difference]: Finished difference Result 2888 states and 4321 transitions. [2024-11-16 11:56:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:44,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-16 11:56:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:44,043 INFO L225 Difference]: With dead ends: 2888 [2024-11-16 11:56:44,043 INFO L226 Difference]: Without dead ends: 1482 [2024-11-16 11:56:44,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:44,047 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:44,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:56:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2024-11-16 11:56:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1482. [2024-11-16 11:56:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.4962862930452396) internal successors, (2216), 1481 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:44,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2216 transitions. [2024-11-16 11:56:44,071 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2216 transitions. Word has length 119 [2024-11-16 11:56:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:44,072 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 2216 transitions. [2024-11-16 11:56:44,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2216 transitions. [2024-11-16 11:56:44,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 11:56:44,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:44,073 INFO L215 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] [2024-11-16 11:56:44,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:56:44,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:44,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:44,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1804156713, now seen corresponding path program 1 times [2024-11-16 11:56:44,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:44,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039588074] [2024-11-16 11:56:44,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:44,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:45,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:45,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:45,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039588074] [2024-11-16 11:56:45,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039588074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:45,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:45,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:45,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260527928] [2024-11-16 11:56:45,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:45,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:45,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:45,195 INFO L87 Difference]: Start difference. First operand 1482 states and 2216 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:46,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:46,062 INFO L93 Difference]: Finished difference Result 2900 states and 4337 transitions. [2024-11-16 11:56:46,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:46,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-16 11:56:46,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:46,069 INFO L225 Difference]: With dead ends: 2900 [2024-11-16 11:56:46,069 INFO L226 Difference]: Without dead ends: 1488 [2024-11-16 11:56:46,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:46,074 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:46,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:56:46,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2024-11-16 11:56:46,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1488. [2024-11-16 11:56:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 1.495628782784129) internal successors, (2224), 1487 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2224 transitions. [2024-11-16 11:56:46,102 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2224 transitions. Word has length 120 [2024-11-16 11:56:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:46,103 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 2224 transitions. [2024-11-16 11:56:46,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2224 transitions. [2024-11-16 11:56:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 11:56:46,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:46,106 INFO L215 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] [2024-11-16 11:56:46,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:56:46,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:46,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:46,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1057749352, now seen corresponding path program 1 times [2024-11-16 11:56:46,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:46,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807956392] [2024-11-16 11:56:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:46,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:47,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:47,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807956392] [2024-11-16 11:56:47,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807956392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:47,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:47,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269141103] [2024-11-16 11:56:47,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:47,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:47,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:47,534 INFO L87 Difference]: Start difference. First operand 1488 states and 2224 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:48,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:48,484 INFO L93 Difference]: Finished difference Result 2912 states and 4353 transitions. [2024-11-16 11:56:48,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:48,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-16 11:56:48,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:48,492 INFO L225 Difference]: With dead ends: 2912 [2024-11-16 11:56:48,493 INFO L226 Difference]: Without dead ends: 1494 [2024-11-16 11:56:48,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:48,497 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:48,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:56:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2024-11-16 11:56:48,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1494. [2024-11-16 11:56:48,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 1.494976557267247) internal successors, (2232), 1493 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2232 transitions. [2024-11-16 11:56:48,533 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2232 transitions. Word has length 121 [2024-11-16 11:56:48,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:48,533 INFO L471 AbstractCegarLoop]: Abstraction has 1494 states and 2232 transitions. [2024-11-16 11:56:48,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2232 transitions. [2024-11-16 11:56:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 11:56:48,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:48,539 INFO L215 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] [2024-11-16 11:56:48,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:56:48,540 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:48,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash -499840895, now seen corresponding path program 1 times [2024-11-16 11:56:48,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:48,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851266019] [2024-11-16 11:56:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:48,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:49,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:49,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851266019] [2024-11-16 11:56:49,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851266019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:49,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:49,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:49,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127556547] [2024-11-16 11:56:49,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:49,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:49,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:49,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:49,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:49,707 INFO L87 Difference]: Start difference. First operand 1494 states and 2232 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:50,597 INFO L93 Difference]: Finished difference Result 2924 states and 4369 transitions. [2024-11-16 11:56:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:50,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-16 11:56:50,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:50,603 INFO L225 Difference]: With dead ends: 2924 [2024-11-16 11:56:50,603 INFO L226 Difference]: Without dead ends: 1500 [2024-11-16 11:56:50,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:50,608 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:50,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:56:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2024-11-16 11:56:50,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2024-11-16 11:56:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 1.4943295530353569) internal successors, (2240), 1499 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 2240 transitions. [2024-11-16 11:56:50,633 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 2240 transitions. Word has length 122 [2024-11-16 11:56:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:50,634 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 2240 transitions. [2024-11-16 11:56:50,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:50,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 2240 transitions. [2024-11-16 11:56:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 11:56:50,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:50,636 INFO L215 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] [2024-11-16 11:56:50,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:56:50,636 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:50,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1540132158, now seen corresponding path program 1 times [2024-11-16 11:56:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35227218] [2024-11-16 11:56:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:51,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:51,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:51,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35227218] [2024-11-16 11:56:51,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35227218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:51,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:51,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:51,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186778786] [2024-11-16 11:56:51,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:51,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:51,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:51,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:51,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:51,682 INFO L87 Difference]: Start difference. First operand 1500 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:52,417 INFO L93 Difference]: Finished difference Result 2936 states and 4385 transitions. [2024-11-16 11:56:52,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:52,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-16 11:56:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:52,422 INFO L225 Difference]: With dead ends: 2936 [2024-11-16 11:56:52,423 INFO L226 Difference]: Without dead ends: 1506 [2024-11-16 11:56:52,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:52,426 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:52,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:56:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-16 11:56:52,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-16 11:56:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.493687707641196) internal successors, (2248), 1505 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:52,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2248 transitions. [2024-11-16 11:56:52,450 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2248 transitions. Word has length 123 [2024-11-16 11:56:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:52,450 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2248 transitions. [2024-11-16 11:56:52,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2248 transitions. [2024-11-16 11:56:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 11:56:52,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:52,452 INFO L215 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] [2024-11-16 11:56:52,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:56:52,453 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:52,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -70848213, now seen corresponding path program 1 times [2024-11-16 11:56:52,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:52,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935100574] [2024-11-16 11:56:52,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:52,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:54,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:54,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935100574] [2024-11-16 11:56:54,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935100574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:54,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:54,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 11:56:54,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753382925] [2024-11-16 11:56:54,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:54,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 11:56:54,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:54,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 11:56:54,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:56:54,636 INFO L87 Difference]: Start difference. First operand 1506 states and 2248 transitions. Second operand has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:55,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:55,777 INFO L93 Difference]: Finished difference Result 2948 states and 4401 transitions. [2024-11-16 11:56:55,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:56:55,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-16 11:56:55,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:55,783 INFO L225 Difference]: With dead ends: 2948 [2024-11-16 11:56:55,783 INFO L226 Difference]: Without dead ends: 1512 [2024-11-16 11:56:55,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:56:55,786 INFO L432 NwaCegarLoop]: 1831 mSDtfsCounter, 8 mSDsluCounter, 10967 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12798 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:55,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12798 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 11:56:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-11-16 11:56:55,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-11-16 11:56:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1511 states have (on average 1.4930509596293846) internal successors, (2256), 1511 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:55,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2256 transitions. [2024-11-16 11:56:55,811 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2256 transitions. Word has length 124 [2024-11-16 11:56:55,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:55,812 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2256 transitions. [2024-11-16 11:56:55,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.5) internal successors, (124), 8 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:55,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2256 transitions. [2024-11-16 11:56:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 11:56:55,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:55,814 INFO L215 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] [2024-11-16 11:56:55,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 11:56:55,814 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:55,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:55,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1162686444, now seen corresponding path program 1 times [2024-11-16 11:56:55,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:55,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968249643] [2024-11-16 11:56:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:56,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:56,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968249643] [2024-11-16 11:56:56,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968249643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:56,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:56,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:56,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216606682] [2024-11-16 11:56:56,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:56,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:56,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:56,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:56,742 INFO L87 Difference]: Start difference. First operand 1512 states and 2256 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:57,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:57,373 INFO L93 Difference]: Finished difference Result 2960 states and 4417 transitions. [2024-11-16 11:56:57,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:57,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2024-11-16 11:56:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:57,379 INFO L225 Difference]: With dead ends: 2960 [2024-11-16 11:56:57,379 INFO L226 Difference]: Without dead ends: 1518 [2024-11-16 11:56:57,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:57,381 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:57,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:56:57,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-16 11:56:57,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1518. [2024-11-16 11:56:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 1.4924192485168095) internal successors, (2264), 1517 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2264 transitions. [2024-11-16 11:56:57,406 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2264 transitions. Word has length 125 [2024-11-16 11:56:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:57,407 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 2264 transitions. [2024-11-16 11:56:57,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2264 transitions. [2024-11-16 11:56:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 11:56:57,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:57,408 INFO L215 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] [2024-11-16 11:56:57,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 11:56:57,409 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:57,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:57,409 INFO L85 PathProgramCache]: Analyzing trace with hash -668869931, now seen corresponding path program 1 times [2024-11-16 11:56:57,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:57,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829600385] [2024-11-16 11:56:57,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:57,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:58,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829600385] [2024-11-16 11:56:58,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829600385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:58,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:58,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:58,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315673492] [2024-11-16 11:56:58,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:58,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:58,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:58,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:58,359 INFO L87 Difference]: Start difference. First operand 1518 states and 2264 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:56:58,981 INFO L93 Difference]: Finished difference Result 2972 states and 4433 transitions. [2024-11-16 11:56:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:56:58,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 11:56:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:56:58,985 INFO L225 Difference]: With dead ends: 2972 [2024-11-16 11:56:58,985 INFO L226 Difference]: Without dead ends: 1524 [2024-11-16 11:56:58,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:58,987 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:56:58,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:56:58,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2024-11-16 11:56:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1524. [2024-11-16 11:56:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.4917925147734734) internal successors, (2272), 1523 states have internal predecessors, (2272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:59,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2272 transitions. [2024-11-16 11:56:59,011 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2272 transitions. Word has length 126 [2024-11-16 11:56:59,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:56:59,012 INFO L471 AbstractCegarLoop]: Abstraction has 1524 states and 2272 transitions. [2024-11-16 11:56:59,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:56:59,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2272 transitions. [2024-11-16 11:56:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 11:56:59,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:56:59,014 INFO L215 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] [2024-11-16 11:56:59,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 11:56:59,014 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:56:59,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:56:59,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1119445482, now seen corresponding path program 1 times [2024-11-16 11:56:59,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:56:59,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481867032] [2024-11-16 11:56:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:56:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:56:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:56:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:56:59,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:56:59,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481867032] [2024-11-16 11:56:59,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481867032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:56:59,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:56:59,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:56:59,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573921665] [2024-11-16 11:56:59,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:56:59,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:56:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:56:59,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:56:59,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:56:59,939 INFO L87 Difference]: Start difference. First operand 1524 states and 2272 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:00,563 INFO L93 Difference]: Finished difference Result 2984 states and 4449 transitions. [2024-11-16 11:57:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:00,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-16 11:57:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:00,569 INFO L225 Difference]: With dead ends: 2984 [2024-11-16 11:57:00,569 INFO L226 Difference]: Without dead ends: 1530 [2024-11-16 11:57:00,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:00,571 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:00,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:57:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2024-11-16 11:57:00,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1530. [2024-11-16 11:57:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1529 states have (on average 1.4911706998037932) internal successors, (2280), 1529 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 2280 transitions. [2024-11-16 11:57:00,594 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 2280 transitions. Word has length 127 [2024-11-16 11:57:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:00,594 INFO L471 AbstractCegarLoop]: Abstraction has 1530 states and 2280 transitions. [2024-11-16 11:57:00,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 2280 transitions. [2024-11-16 11:57:00,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 11:57:00,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:00,596 INFO L215 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] [2024-11-16 11:57:00,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 11:57:00,596 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:00,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:00,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1524311423, now seen corresponding path program 1 times [2024-11-16 11:57:00,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:00,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598011559] [2024-11-16 11:57:00,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:00,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:02,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:02,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:02,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598011559] [2024-11-16 11:57:02,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598011559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:02,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:02,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:57:02,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328419182] [2024-11-16 11:57:02,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:02,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:57:02,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:02,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:57:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:02,900 INFO L87 Difference]: Start difference. First operand 1530 states and 2280 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:03,627 INFO L93 Difference]: Finished difference Result 2996 states and 4465 transitions. [2024-11-16 11:57:03,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:03,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-16 11:57:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:03,631 INFO L225 Difference]: With dead ends: 2996 [2024-11-16 11:57:03,631 INFO L226 Difference]: Without dead ends: 1536 [2024-11-16 11:57:03,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:03,633 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:03,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:57:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2024-11-16 11:57:03,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2024-11-16 11:57:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 1.4905537459283387) internal successors, (2288), 1535 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:03,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2288 transitions. [2024-11-16 11:57:03,664 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2288 transitions. Word has length 128 [2024-11-16 11:57:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:03,664 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 2288 transitions. [2024-11-16 11:57:03,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:03,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2288 transitions. [2024-11-16 11:57:03,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 11:57:03,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:03,669 INFO L215 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] [2024-11-16 11:57:03,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 11:57:03,670 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:03,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:03,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1027269312, now seen corresponding path program 1 times [2024-11-16 11:57:03,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:03,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072112474] [2024-11-16 11:57:03,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:03,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:05,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:05,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072112474] [2024-11-16 11:57:05,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072112474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:05,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:57:05,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450255306] [2024-11-16 11:57:05,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:05,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:57:05,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:57:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:57:05,633 INFO L87 Difference]: Start difference. First operand 1536 states and 2288 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:07,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:07,031 INFO L93 Difference]: Finished difference Result 3008 states and 4481 transitions. [2024-11-16 11:57:07,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:57:07,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-16 11:57:07,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:07,035 INFO L225 Difference]: With dead ends: 3008 [2024-11-16 11:57:07,035 INFO L226 Difference]: Without dead ends: 1542 [2024-11-16 11:57:07,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:57:07,037 INFO L432 NwaCegarLoop]: 1831 mSDtfsCounter, 8 mSDsluCounter, 12793 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14624 SdHoareTripleChecker+Invalid, 2993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:07,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14624 Invalid, 2993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2990 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 11:57:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-16 11:57:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1542. [2024-11-16 11:57:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 1.489941596365996) internal successors, (2296), 1541 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2296 transitions. [2024-11-16 11:57:07,058 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2296 transitions. Word has length 129 [2024-11-16 11:57:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:07,058 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 2296 transitions. [2024-11-16 11:57:07,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2296 transitions. [2024-11-16 11:57:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 11:57:07,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:07,060 INFO L215 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] [2024-11-16 11:57:07,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 11:57:07,061 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:07,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:07,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1982345513, now seen corresponding path program 1 times [2024-11-16 11:57:07,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:07,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518621951] [2024-11-16 11:57:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:07,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:08,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:08,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518621951] [2024-11-16 11:57:08,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518621951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:08,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:08,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:57:08,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29270994] [2024-11-16 11:57:08,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:08,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:57:08,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:08,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:57:08,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:08,114 INFO L87 Difference]: Start difference. First operand 1542 states and 2296 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:09,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:09,032 INFO L93 Difference]: Finished difference Result 3020 states and 4497 transitions. [2024-11-16 11:57:09,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:09,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-16 11:57:09,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:09,038 INFO L225 Difference]: With dead ends: 3020 [2024-11-16 11:57:09,039 INFO L226 Difference]: Without dead ends: 1548 [2024-11-16 11:57:09,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:09,041 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 7321 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9155 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:09,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9155 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:57:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-16 11:57:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1548. [2024-11-16 11:57:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 1.4893341952165482) internal successors, (2304), 1547 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2304 transitions. [2024-11-16 11:57:09,066 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2304 transitions. Word has length 130 [2024-11-16 11:57:09,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:09,067 INFO L471 AbstractCegarLoop]: Abstraction has 1548 states and 2304 transitions. [2024-11-16 11:57:09,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:09,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2304 transitions. [2024-11-16 11:57:09,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 11:57:09,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:09,069 INFO L215 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] [2024-11-16 11:57:09,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 11:57:09,069 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:09,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:09,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1275989354, now seen corresponding path program 1 times [2024-11-16 11:57:09,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:09,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604182520] [2024-11-16 11:57:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:09,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:09,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:09,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:09,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604182520] [2024-11-16 11:57:09,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604182520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:09,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:09,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:57:09,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122632761] [2024-11-16 11:57:09,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:09,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:57:09,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:09,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:57:09,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:09,976 INFO L87 Difference]: Start difference. First operand 1548 states and 2304 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:10,607 INFO L93 Difference]: Finished difference Result 3032 states and 4513 transitions. [2024-11-16 11:57:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-16 11:57:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:10,611 INFO L225 Difference]: With dead ends: 3032 [2024-11-16 11:57:10,611 INFO L226 Difference]: Without dead ends: 1554 [2024-11-16 11:57:10,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:10,613 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:10,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:57:10,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2024-11-16 11:57:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1554. [2024-11-16 11:57:10,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 1.4887314874436575) internal successors, (2312), 1553 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2312 transitions. [2024-11-16 11:57:10,639 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2312 transitions. Word has length 131 [2024-11-16 11:57:10,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:10,639 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 2312 transitions. [2024-11-16 11:57:10,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2312 transitions. [2024-11-16 11:57:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-16 11:57:10,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:10,641 INFO L215 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] [2024-11-16 11:57:10,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 11:57:10,642 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:10,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1289641427, now seen corresponding path program 1 times [2024-11-16 11:57:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226477892] [2024-11-16 11:57:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:11,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:11,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226477892] [2024-11-16 11:57:11,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226477892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:11,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:11,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:57:11,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398889477] [2024-11-16 11:57:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:11,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:57:11,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:57:11,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:11,733 INFO L87 Difference]: Start difference. First operand 1554 states and 2312 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:12,353 INFO L93 Difference]: Finished difference Result 3044 states and 4529 transitions. [2024-11-16 11:57:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:12,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-16 11:57:12,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:12,358 INFO L225 Difference]: With dead ends: 3044 [2024-11-16 11:57:12,358 INFO L226 Difference]: Without dead ends: 1560 [2024-11-16 11:57:12,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:12,360 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 5492 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:12,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7326 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:57:12,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2024-11-16 11:57:12,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1560. [2024-11-16 11:57:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 1.4881334188582425) internal successors, (2320), 1559 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2320 transitions. [2024-11-16 11:57:12,383 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2320 transitions. Word has length 132 [2024-11-16 11:57:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:12,384 INFO L471 AbstractCegarLoop]: Abstraction has 1560 states and 2320 transitions. [2024-11-16 11:57:12,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2320 transitions. [2024-11-16 11:57:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 11:57:12,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:12,386 INFO L215 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] [2024-11-16 11:57:12,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 11:57:12,386 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:12,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash -822529684, now seen corresponding path program 1 times [2024-11-16 11:57:12,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:12,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95640702] [2024-11-16 11:57:12,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:12,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:13,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95640702] [2024-11-16 11:57:13,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95640702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:13,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:13,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:57:13,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175958909] [2024-11-16 11:57:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:13,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:57:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:13,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:57:13,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:13,455 INFO L87 Difference]: Start difference. First operand 1560 states and 2320 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:14,228 INFO L93 Difference]: Finished difference Result 3056 states and 4545 transitions. [2024-11-16 11:57:14,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:14,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-11-16 11:57:14,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:14,232 INFO L225 Difference]: With dead ends: 3056 [2024-11-16 11:57:14,232 INFO L226 Difference]: Without dead ends: 1566 [2024-11-16 11:57:14,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:14,235 INFO L432 NwaCegarLoop]: 1834 mSDtfsCounter, 4 mSDsluCounter, 7321 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9155 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:14,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9155 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:57:14,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2024-11-16 11:57:14,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1566. [2024-11-16 11:57:14,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 1.4875399361022363) internal successors, (2328), 1565 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2328 transitions. [2024-11-16 11:57:14,259 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2328 transitions. Word has length 133 [2024-11-16 11:57:14,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:14,259 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2328 transitions. [2024-11-16 11:57:14,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:14,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2328 transitions. [2024-11-16 11:57:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 11:57:14,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:14,261 INFO L215 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] [2024-11-16 11:57:14,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 11:57:14,261 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:14,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1416825725, now seen corresponding path program 1 times [2024-11-16 11:57:14,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:14,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526230618] [2024-11-16 11:57:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:14,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:16,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:16,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526230618] [2024-11-16 11:57:16,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526230618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:16,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:16,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:57:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363291735] [2024-11-16 11:57:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:16,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:57:16,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:16,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:57:16,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:16,895 INFO L87 Difference]: Start difference. First operand 1566 states and 2328 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:17,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:17,850 INFO L93 Difference]: Finished difference Result 3066 states and 4557 transitions. [2024-11-16 11:57:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:17,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-16 11:57:17,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:17,853 INFO L225 Difference]: With dead ends: 3066 [2024-11-16 11:57:17,853 INFO L226 Difference]: Without dead ends: 1570 [2024-11-16 11:57:17,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:57:17,855 INFO L432 NwaCegarLoop]: 1820 mSDtfsCounter, 2148 mSDsluCounter, 5448 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 7268 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:17,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 7268 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:57:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-16 11:57:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1566. [2024-11-16 11:57:17,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 1.4875399361022363) internal successors, (2328), 1565 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2328 transitions. [2024-11-16 11:57:17,875 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2328 transitions. Word has length 134 [2024-11-16 11:57:17,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:17,876 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2328 transitions. [2024-11-16 11:57:17,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2328 transitions. [2024-11-16 11:57:17,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 11:57:17,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:17,877 INFO L215 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] [2024-11-16 11:57:17,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 11:57:17,878 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:17,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:17,878 INFO L85 PathProgramCache]: Analyzing trace with hash 952497863, now seen corresponding path program 1 times [2024-11-16 11:57:17,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:17,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754127409] [2024-11-16 11:57:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:17,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:20,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754127409] [2024-11-16 11:57:20,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754127409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:20,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:20,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:57:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360658731] [2024-11-16 11:57:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:20,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:57:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:57:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:20,391 INFO L87 Difference]: Start difference. First operand 1566 states and 2328 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:21,163 INFO L93 Difference]: Finished difference Result 3066 states and 4557 transitions. [2024-11-16 11:57:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:21,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-16 11:57:21,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:21,168 INFO L225 Difference]: With dead ends: 3066 [2024-11-16 11:57:21,168 INFO L226 Difference]: Without dead ends: 1570 [2024-11-16 11:57:21,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:21,171 INFO L432 NwaCegarLoop]: 1820 mSDtfsCounter, 2153 mSDsluCounter, 3632 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 5452 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:21,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 5452 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:57:21,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-16 11:57:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1566. [2024-11-16 11:57:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 1.4875399361022363) internal successors, (2328), 1565 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2328 transitions. [2024-11-16 11:57:21,206 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2328 transitions. Word has length 135 [2024-11-16 11:57:21,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:21,206 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2328 transitions. [2024-11-16 11:57:21,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:21,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2328 transitions. [2024-11-16 11:57:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-16 11:57:21,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:21,212 INFO L215 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] [2024-11-16 11:57:21,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 11:57:21,213 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:21,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:21,213 INFO L85 PathProgramCache]: Analyzing trace with hash -257481059, now seen corresponding path program 1 times [2024-11-16 11:57:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:21,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891882625] [2024-11-16 11:57:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:57:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:57:23,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:57:23,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891882625] [2024-11-16 11:57:23,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891882625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:57:23,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:57:23,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:57:23,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905298610] [2024-11-16 11:57:23,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:57:23,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:57:23,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:57:23,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:57:23,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:57:23,753 INFO L87 Difference]: Start difference. First operand 1566 states and 2328 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:57:24,373 INFO L93 Difference]: Finished difference Result 3064 states and 4555 transitions. [2024-11-16 11:57:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:57:24,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-16 11:57:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:57:24,376 INFO L225 Difference]: With dead ends: 3064 [2024-11-16 11:57:24,376 INFO L226 Difference]: Without dead ends: 1568 [2024-11-16 11:57:24,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:57:24,378 INFO L432 NwaCegarLoop]: 1820 mSDtfsCounter, 2158 mSDsluCounter, 3633 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2158 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:57:24,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2158 Valid, 5453 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:57:24,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2024-11-16 11:57:24,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1568. [2024-11-16 11:57:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1567 states have (on average 1.4869176770899808) internal successors, (2330), 1567 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2330 transitions. [2024-11-16 11:57:24,394 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2330 transitions. Word has length 136 [2024-11-16 11:57:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:57:24,395 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2330 transitions. [2024-11-16 11:57:24,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:57:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2330 transitions. [2024-11-16 11:57:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-16 11:57:24,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:57:24,396 INFO L215 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] [2024-11-16 11:57:24,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 11:57:24,397 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:57:24,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:57:24,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2035434649, now seen corresponding path program 1 times [2024-11-16 11:57:24,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:57:24,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453392840] [2024-11-16 11:57:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:57:24,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:57:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat