./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/eca-rers2012/Problem13_label02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48aec8d1d241a0a7736380f3571da3a89472d426f8d78df6e318e9a8d52f121e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:57:45,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:57:45,217 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:57:45,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:57:45,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:57:45,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:57:45,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:57:45,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:57:45,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:57:45,258 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:57:45,258 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:57:45,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:57:45,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:57:45,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:57:45,261 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:57:45,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:57:45,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:57:45,262 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:57:45,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:57:45,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:57:45,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:57:45,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:57:45,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:57:45,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:57:45,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:57:45,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:57:45,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:57:45,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:57:45,269 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:57:45,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:57:45,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:57:45,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:57:45,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:45,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:57:45,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:57:45,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:57:45,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:57:45,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:57:45,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:57:45,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:57:45,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:57:45,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:57:45,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48aec8d1d241a0a7736380f3571da3a89472d426f8d78df6e318e9a8d52f121e [2024-11-16 03:57:45,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:57:45,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:57:45,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:57:45,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:57:45,529 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:57:45,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label02.c [2024-11-16 03:57:47,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:57:47,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:57:47,482 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label02.c [2024-11-16 03:57:47,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011bf3c50/c1f04de3922f40e2a23b9beae9e76c04/FLAG04015ad23 [2024-11-16 03:57:47,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011bf3c50/c1f04de3922f40e2a23b9beae9e76c04 [2024-11-16 03:57:47,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:57:47,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:57:47,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:47,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:57:47,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:57:47,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:47" (1/1) ... [2024-11-16 03:57:47,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cae7d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:47, skipping insertion in model container [2024-11-16 03:57:47,559 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:47" (1/1) ... [2024-11-16 03:57:47,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:57:47,941 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label02.c[5671,5684] [2024-11-16 03:57:48,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:48,859 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:57:48,886 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label02.c[5671,5684] [2024-11-16 03:57:49,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:49,467 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:57:49,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49 WrapperNode [2024-11-16 03:57:49,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:49,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:49,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:57:49,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:57:49,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:49,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,179 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-16 03:57:50,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:50,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:57:50,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:57:50,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:57:50,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,688 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 03:57:50,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,966 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:50,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:51,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:51,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:51,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:57:51,153 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:57:51,153 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:57:51,154 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:57:51,155 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (1/1) ... [2024-11-16 03:57:51,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:51,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:51,280 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 03:57:51,287 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 03:57:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:57:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:57:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:57:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:57:51,390 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:57:51,392 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:57:56,831 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-16 03:57:56,831 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:57:56,832 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:57:57,029 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-16 03:57:57,029 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:57:57,078 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:57:57,079 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:57:57,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:57 BoogieIcfgContainer [2024-11-16 03:57:57,079 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:57:57,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:57:57,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:57:57,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:57:57,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:57:47" (1/3) ... [2024-11-16 03:57:57,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5961ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:57, skipping insertion in model container [2024-11-16 03:57:57,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:49" (2/3) ... [2024-11-16 03:57:57,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5961ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:57, skipping insertion in model container [2024-11-16 03:57:57,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:57" (3/3) ... [2024-11-16 03:57:57,090 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label02.c [2024-11-16 03:57:57,109 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:57:57,110 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:57:57,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:57:57,221 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;@7be10358, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:57:57,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:57:57,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 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 03:57:57,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 03:57:57,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:57,238 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] [2024-11-16 03:57:57,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:57,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 101378460, now seen corresponding path program 1 times [2024-11-16 03:57:57,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:57,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507429112] [2024-11-16 03:57:57,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:57,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:57,609 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 03:57:57,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:57,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507429112] [2024-11-16 03:57:57,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507429112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:57,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:57,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:57:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58666832] [2024-11-16 03:57:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:57,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:57,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:57,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:57,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:57,652 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 1.8252957233848954) internal successors, (2006), 1100 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:02,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:02,365 INFO L93 Difference]: Finished difference Result 3127 states and 5810 transitions. [2024-11-16 03:58:02,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:02,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-16 03:58:02,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:02,404 INFO L225 Difference]: With dead ends: 3127 [2024-11-16 03:58:02,404 INFO L226 Difference]: Without dead ends: 1947 [2024-11-16 03:58:02,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:02,417 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 950 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:02,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 575 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-16 03:58:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-11-16 03:58:02,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1876. [2024-11-16 03:58:02,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1875 states have (on average 1.7381333333333333) internal successors, (3259), 1875 states have internal predecessors, (3259), 0 states have call successors, (0), 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 03:58:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 3259 transitions. [2024-11-16 03:58:02,541 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 3259 transitions. Word has length 41 [2024-11-16 03:58:02,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:02,542 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 3259 transitions. [2024-11-16 03:58:02,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 3259 transitions. [2024-11-16 03:58:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 03:58:02,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:02,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:02,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:58:02,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:02,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:02,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2142662070, now seen corresponding path program 1 times [2024-11-16 03:58:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:02,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362217756] [2024-11-16 03:58:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:02,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:02,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:02,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362217756] [2024-11-16 03:58:02,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362217756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:02,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:02,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:02,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122058914] [2024-11-16 03:58:02,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:02,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:02,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:02,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:02,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:02,935 INFO L87 Difference]: Start difference. First operand 1876 states and 3259 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:06,585 INFO L93 Difference]: Finished difference Result 4611 states and 7971 transitions. [2024-11-16 03:58:06,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:06,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-16 03:58:06,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:06,598 INFO L225 Difference]: With dead ends: 4611 [2024-11-16 03:58:06,598 INFO L226 Difference]: Without dead ends: 2737 [2024-11-16 03:58:06,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:06,604 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 815 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:06,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 742 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-16 03:58:06,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-11-16 03:58:06,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2674. [2024-11-16 03:58:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.656939768050879) internal successors, (4429), 2673 states have internal predecessors, (4429), 0 states have call successors, (0), 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 03:58:06,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 4429 transitions. [2024-11-16 03:58:06,728 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 4429 transitions. Word has length 107 [2024-11-16 03:58:06,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:06,728 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 4429 transitions. [2024-11-16 03:58:06,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 4429 transitions. [2024-11-16 03:58:06,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 03:58:06,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:06,731 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:06,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:58:06,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:06,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1167264478, now seen corresponding path program 1 times [2024-11-16 03:58:06,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:06,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833707078] [2024-11-16 03:58:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:06,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:06,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:06,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833707078] [2024-11-16 03:58:06,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833707078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:06,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687656153] [2024-11-16 03:58:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:06,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:06,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:06,908 INFO L87 Difference]: Start difference. First operand 2674 states and 4429 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 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 03:58:09,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:09,979 INFO L93 Difference]: Finished difference Result 7743 states and 12875 transitions. [2024-11-16 03:58:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:09,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-16 03:58:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:10,000 INFO L225 Difference]: With dead ends: 7743 [2024-11-16 03:58:10,003 INFO L226 Difference]: Without dead ends: 5071 [2024-11-16 03:58:10,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:10,011 INFO L432 NwaCegarLoop]: 985 mSDtfsCounter, 871 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 3255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:10,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1139 Invalid, 3255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:58:10,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2024-11-16 03:58:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 5070. [2024-11-16 03:58:10,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5070 states, 5069 states have (on average 1.45393568751233) internal successors, (7370), 5069 states have internal predecessors, (7370), 0 states have call successors, (0), 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 03:58:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5070 states to 5070 states and 7370 transitions. [2024-11-16 03:58:10,117 INFO L78 Accepts]: Start accepts. Automaton has 5070 states and 7370 transitions. Word has length 108 [2024-11-16 03:58:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:10,121 INFO L471 AbstractCegarLoop]: Abstraction has 5070 states and 7370 transitions. [2024-11-16 03:58:10,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 0 states have call successors, (0), 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 03:58:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5070 states and 7370 transitions. [2024-11-16 03:58:10,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 03:58:10,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:10,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:10,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:58:10,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:10,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash 97446400, now seen corresponding path program 1 times [2024-11-16 03:58:10,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:10,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248044165] [2024-11-16 03:58:10,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:10,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:10,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:10,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248044165] [2024-11-16 03:58:10,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248044165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:10,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:10,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:10,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217056486] [2024-11-16 03:58:10,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:10,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:10,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:10,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:10,263 INFO L87 Difference]: Start difference. First operand 5070 states and 7370 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 03:58:13,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:13,944 INFO L93 Difference]: Finished difference Result 12530 states and 18448 transitions. [2024-11-16 03:58:13,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:13,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-16 03:58:13,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:13,965 INFO L225 Difference]: With dead ends: 12530 [2024-11-16 03:58:13,965 INFO L226 Difference]: Without dead ends: 7462 [2024-11-16 03:58:13,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:13,974 INFO L432 NwaCegarLoop]: 1044 mSDtfsCounter, 872 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2661 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:13,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1178 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2661 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-16 03:58:13,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2024-11-16 03:58:14,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 7454. [2024-11-16 03:58:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 7453 states have (on average 1.3363746142492956) internal successors, (9960), 7453 states have internal predecessors, (9960), 0 states have call successors, (0), 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 03:58:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 9960 transitions. [2024-11-16 03:58:14,146 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 9960 transitions. Word has length 111 [2024-11-16 03:58:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:14,148 INFO L471 AbstractCegarLoop]: Abstraction has 7454 states and 9960 transitions. [2024-11-16 03:58:14,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 03:58:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 9960 transitions. [2024-11-16 03:58:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 03:58:14,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:14,152 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:14,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:58:14,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:14,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash 723642476, now seen corresponding path program 1 times [2024-11-16 03:58:14,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:14,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097016205] [2024-11-16 03:58:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:14,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:14,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097016205] [2024-11-16 03:58:14,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097016205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:14,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:14,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:14,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424748] [2024-11-16 03:58:14,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:14,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:14,315 INFO L87 Difference]: Start difference. First operand 7454 states and 9960 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 03:58:17,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:17,288 INFO L93 Difference]: Finished difference Result 20451 states and 27808 transitions. [2024-11-16 03:58:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:17,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-16 03:58:17,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:17,324 INFO L225 Difference]: With dead ends: 20451 [2024-11-16 03:58:17,324 INFO L226 Difference]: Without dead ends: 13787 [2024-11-16 03:58:17,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:17,336 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 807 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:17,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1163 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [784 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:58:17,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13787 states. [2024-11-16 03:58:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13787 to 13769. [2024-11-16 03:58:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13769 states, 13768 states have (on average 1.2258134805345728) internal successors, (16877), 13768 states have internal predecessors, (16877), 0 states have call successors, (0), 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 03:58:17,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 16877 transitions. [2024-11-16 03:58:17,651 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 16877 transitions. Word has length 115 [2024-11-16 03:58:17,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:17,652 INFO L471 AbstractCegarLoop]: Abstraction has 13769 states and 16877 transitions. [2024-11-16 03:58:17,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 03:58:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 16877 transitions. [2024-11-16 03:58:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 03:58:17,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:17,654 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:17,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:58:17,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:17,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:17,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1505888152, now seen corresponding path program 1 times [2024-11-16 03:58:17,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:17,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475251603] [2024-11-16 03:58:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:17,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:17,925 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:17,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:17,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475251603] [2024-11-16 03:58:17,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475251603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:17,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:17,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:58:17,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629735103] [2024-11-16 03:58:17,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:17,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:17,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:17,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:17,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:17,929 INFO L87 Difference]: Start difference. First operand 13769 states and 16877 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 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 03:58:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:20,439 INFO L93 Difference]: Finished difference Result 26748 states and 32954 transitions. [2024-11-16 03:58:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 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 03:58:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:20,465 INFO L225 Difference]: With dead ends: 26748 [2024-11-16 03:58:20,465 INFO L226 Difference]: Without dead ends: 13769 [2024-11-16 03:58:20,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:20,480 INFO L432 NwaCegarLoop]: 1085 mSDtfsCounter, 700 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:20,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1216 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:20,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13769 states. [2024-11-16 03:58:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13769 to 13769. [2024-11-16 03:58:20,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13769 states, 13768 states have (on average 1.2254503195816386) internal successors, (16872), 13768 states have internal predecessors, (16872), 0 states have call successors, (0), 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 03:58:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 16872 transitions. [2024-11-16 03:58:20,673 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 16872 transitions. Word has length 131 [2024-11-16 03:58:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:20,673 INFO L471 AbstractCegarLoop]: Abstraction has 13769 states and 16872 transitions. [2024-11-16 03:58:20,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 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 03:58:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 16872 transitions. [2024-11-16 03:58:20,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 03:58:20,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:20,675 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:20,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:58:20,676 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:20,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:20,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1014915306, now seen corresponding path program 1 times [2024-11-16 03:58:20,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:20,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520965823] [2024-11-16 03:58:20,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:20,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:20,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:20,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520965823] [2024-11-16 03:58:20,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520965823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:20,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:20,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:20,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346742541] [2024-11-16 03:58:20,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:20,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:20,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:20,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:20,822 INFO L87 Difference]: Start difference. First operand 13769 states and 16872 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 03:58:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:23,901 INFO L93 Difference]: Finished difference Result 26763 states and 32979 transitions. [2024-11-16 03:58:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:23,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-16 03:58:23,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:23,930 INFO L225 Difference]: With dead ends: 26763 [2024-11-16 03:58:23,930 INFO L226 Difference]: Without dead ends: 13784 [2024-11-16 03:58:23,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:23,943 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 1085 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 2460 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:23,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1344 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 2460 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:58:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13784 states. [2024-11-16 03:58:24,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13784 to 13766. [2024-11-16 03:58:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13766 states, 13765 states have (on average 1.2034871049763893) internal successors, (16566), 13765 states have internal predecessors, (16566), 0 states have call successors, (0), 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 03:58:24,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13766 states to 13766 states and 16566 transitions. [2024-11-16 03:58:24,110 INFO L78 Accepts]: Start accepts. Automaton has 13766 states and 16566 transitions. Word has length 138 [2024-11-16 03:58:24,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:24,111 INFO L471 AbstractCegarLoop]: Abstraction has 13766 states and 16566 transitions. [2024-11-16 03:58:24,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 03:58:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand 13766 states and 16566 transitions. [2024-11-16 03:58:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-16 03:58:24,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:24,114 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:24,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:58:24,114 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:24,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1924134794, now seen corresponding path program 1 times [2024-11-16 03:58:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:24,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768691552] [2024-11-16 03:58:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:58:24,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:24,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768691552] [2024-11-16 03:58:24,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768691552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:24,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:24,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:24,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829830628] [2024-11-16 03:58:24,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:24,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:24,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:24,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:24,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:24,285 INFO L87 Difference]: Start difference. First operand 13766 states and 16566 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:27,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:27,301 INFO L93 Difference]: Finished difference Result 33063 states and 40720 transitions. [2024-11-16 03:58:27,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:27,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-16 03:58:27,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:27,327 INFO L225 Difference]: With dead ends: 33063 [2024-11-16 03:58:27,327 INFO L226 Difference]: Without dead ends: 20087 [2024-11-16 03:58:27,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:27,345 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 882 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 3244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:27,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 948 Invalid, 3244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [857 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 03:58:27,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20087 states. [2024-11-16 03:58:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20087 to 20077. [2024-11-16 03:58:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20077 states, 20076 states have (on average 1.1788702928870294) internal successors, (23667), 20076 states have internal predecessors, (23667), 0 states have call successors, (0), 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 03:58:27,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20077 states to 20077 states and 23667 transitions. [2024-11-16 03:58:27,701 INFO L78 Accepts]: Start accepts. Automaton has 20077 states and 23667 transitions. Word has length 221 [2024-11-16 03:58:27,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:27,702 INFO L471 AbstractCegarLoop]: Abstraction has 20077 states and 23667 transitions. [2024-11-16 03:58:27,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:27,702 INFO L276 IsEmpty]: Start isEmpty. Operand 20077 states and 23667 transitions. [2024-11-16 03:58:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-16 03:58:27,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:27,707 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:27,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:58:27,707 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:27,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1599662726, now seen corresponding path program 1 times [2024-11-16 03:58:27,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:27,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996874672] [2024-11-16 03:58:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:27,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-16 03:58:27,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:27,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996874672] [2024-11-16 03:58:27,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996874672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:27,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:27,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:27,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419850420] [2024-11-16 03:58:27,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:27,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:27,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:27,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:27,943 INFO L87 Difference]: Start difference. First operand 20077 states and 23667 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 03:58:31,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:31,098 INFO L93 Difference]: Finished difference Result 45691 states and 54932 transitions. [2024-11-16 03:58:31,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:31,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 311 [2024-11-16 03:58:31,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:31,136 INFO L225 Difference]: With dead ends: 45691 [2024-11-16 03:58:31,136 INFO L226 Difference]: Without dead ends: 26404 [2024-11-16 03:58:31,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:31,157 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 969 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:31,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 791 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:58:31,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26404 states. [2024-11-16 03:58:31,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26404 to 26392. [2024-11-16 03:58:31,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26392 states, 26391 states have (on average 1.1837368799969687) internal successors, (31240), 26391 states have internal predecessors, (31240), 0 states have call successors, (0), 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 03:58:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26392 states to 26392 states and 31240 transitions. [2024-11-16 03:58:31,454 INFO L78 Accepts]: Start accepts. Automaton has 26392 states and 31240 transitions. Word has length 311 [2024-11-16 03:58:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:31,455 INFO L471 AbstractCegarLoop]: Abstraction has 26392 states and 31240 transitions. [2024-11-16 03:58:31,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 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 03:58:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 26392 states and 31240 transitions. [2024-11-16 03:58:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-16 03:58:31,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:31,462 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:31,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:58:31,463 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:31,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash 416568109, now seen corresponding path program 1 times [2024-11-16 03:58:31,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:31,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277999600] [2024-11-16 03:58:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:31,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-16 03:58:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:32,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277999600] [2024-11-16 03:58:32,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277999600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:32,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:32,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041882747] [2024-11-16 03:58:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:32,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:32,037 INFO L87 Difference]: Start difference. First operand 26392 states and 31240 transitions. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:34,820 INFO L93 Difference]: Finished difference Result 52021 states and 61733 transitions. [2024-11-16 03:58:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:34,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2024-11-16 03:58:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:34,848 INFO L225 Difference]: With dead ends: 52021 [2024-11-16 03:58:34,848 INFO L226 Difference]: Without dead ends: 26419 [2024-11-16 03:58:34,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:34,865 INFO L432 NwaCegarLoop]: 1797 mSDtfsCounter, 774 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:34,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1940 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:58:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26419 states. [2024-11-16 03:58:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26419 to 26393. [2024-11-16 03:58:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26393 states, 26392 states have (on average 1.179561988481358) internal successors, (31131), 26392 states have internal predecessors, (31131), 0 states have call successors, (0), 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 03:58:35,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26393 states to 26393 states and 31131 transitions. [2024-11-16 03:58:35,178 INFO L78 Accepts]: Start accepts. Automaton has 26393 states and 31131 transitions. Word has length 363 [2024-11-16 03:58:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:35,178 INFO L471 AbstractCegarLoop]: Abstraction has 26393 states and 31131 transitions. [2024-11-16 03:58:35,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 26393 states and 31131 transitions. [2024-11-16 03:58:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-16 03:58:35,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:35,187 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:35,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:58:35,187 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:35,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1932922616, now seen corresponding path program 1 times [2024-11-16 03:58:35,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:35,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918314367] [2024-11-16 03:58:35,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:35,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 03:58:35,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:35,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918314367] [2024-11-16 03:58:35,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918314367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:35,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:35,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:35,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457445212] [2024-11-16 03:58:35,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:35,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:35,543 INFO L87 Difference]: Start difference. First operand 26393 states and 31131 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 03:58:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:39,101 INFO L93 Difference]: Finished difference Result 64731 states and 76907 transitions. [2024-11-16 03:58:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 371 [2024-11-16 03:58:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:39,142 INFO L225 Difference]: With dead ends: 64731 [2024-11-16 03:58:39,142 INFO L226 Difference]: Without dead ends: 39128 [2024-11-16 03:58:39,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:39,166 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 992 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 3000 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 3000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:39,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 509 Invalid, 3833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 3000 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:58:39,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39128 states. [2024-11-16 03:58:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39128 to 38259. [2024-11-16 03:58:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38259 states, 38258 states have (on average 1.1884834544409013) internal successors, (45469), 38258 states have internal predecessors, (45469), 0 states have call successors, (0), 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 03:58:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38259 states to 38259 states and 45469 transitions. [2024-11-16 03:58:39,569 INFO L78 Accepts]: Start accepts. Automaton has 38259 states and 45469 transitions. Word has length 371 [2024-11-16 03:58:39,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:39,570 INFO L471 AbstractCegarLoop]: Abstraction has 38259 states and 45469 transitions. [2024-11-16 03:58:39,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 03:58:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 38259 states and 45469 transitions. [2024-11-16 03:58:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-16 03:58:39,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:39,576 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:39,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:58:39,576 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:39,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:39,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1455275974, now seen corresponding path program 1 times [2024-11-16 03:58:39,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:39,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018513685] [2024-11-16 03:58:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:39,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 151 proven. 78 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-16 03:58:40,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018513685] [2024-11-16 03:58:40,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018513685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:58:40,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563602832] [2024-11-16 03:58:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:40,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:58:40,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:58:40,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:58:40,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:58:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:40,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:58:40,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:58:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-16 03:58:40,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:58:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563602832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:58:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:58:40,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951416771] [2024-11-16 03:58:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:40,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:40,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:58:40,912 INFO L87 Difference]: Start difference. First operand 38259 states and 45469 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 03:58:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:44,454 INFO L93 Difference]: Finished difference Result 112936 states and 134493 transitions. [2024-11-16 03:58:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 372 [2024-11-16 03:58:44,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:44,535 INFO L225 Difference]: With dead ends: 112936 [2024-11-16 03:58:44,535 INFO L226 Difference]: Without dead ends: 75467 [2024-11-16 03:58:44,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:58:44,567 INFO L432 NwaCegarLoop]: 999 mSDtfsCounter, 1042 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 2742 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 3275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 2742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:44,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1042 Valid, 1209 Invalid, 3275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 2742 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-16 03:58:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75467 states. [2024-11-16 03:58:45,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75467 to 75446. [2024-11-16 03:58:45,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75446 states, 75445 states have (on average 1.1519517529326) internal successors, (86909), 75445 states have internal predecessors, (86909), 0 states have call successors, (0), 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 03:58:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75446 states to 75446 states and 86909 transitions. [2024-11-16 03:58:45,645 INFO L78 Accepts]: Start accepts. Automaton has 75446 states and 86909 transitions. Word has length 372 [2024-11-16 03:58:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:45,645 INFO L471 AbstractCegarLoop]: Abstraction has 75446 states and 86909 transitions. [2024-11-16 03:58:45,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 03:58:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 75446 states and 86909 transitions. [2024-11-16 03:58:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-16 03:58:45,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:45,655 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:45,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:58:45,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 03:58:45,860 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:45,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash -542844776, now seen corresponding path program 1 times [2024-11-16 03:58:45,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:45,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908329567] [2024-11-16 03:58:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:45,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-16 03:58:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908329567] [2024-11-16 03:58:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908329567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:46,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:46,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:46,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160749085] [2024-11-16 03:58:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:46,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:58:46,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:46,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:58:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:58:46,554 INFO L87 Difference]: Start difference. First operand 75446 states and 86909 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:52,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:52,967 INFO L93 Difference]: Finished difference Result 218963 states and 253324 transitions. [2024-11-16 03:58:52,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:58:52,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 407 [2024-11-16 03:58:52,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:53,151 INFO L225 Difference]: With dead ends: 218963 [2024-11-16 03:58:53,151 INFO L226 Difference]: Without dead ends: 144307 [2024-11-16 03:58:53,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:58:53,191 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 1750 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 6096 mSolverCounterSat, 1175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 7271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1175 IncrementalHoareTripleChecker+Valid, 6096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:53,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 747 Invalid, 7271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1175 Valid, 6096 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-16 03:58:53,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144307 states. [2024-11-16 03:58:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144307 to 144114. [2024-11-16 03:58:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144114 states, 144113 states have (on average 1.144525476535774) internal successors, (164941), 144113 states have internal predecessors, (164941), 0 states have call successors, (0), 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 03:58:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144114 states to 144114 states and 164941 transitions. [2024-11-16 03:58:55,122 INFO L78 Accepts]: Start accepts. Automaton has 144114 states and 164941 transitions. Word has length 407 [2024-11-16 03:58:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:55,122 INFO L471 AbstractCegarLoop]: Abstraction has 144114 states and 164941 transitions. [2024-11-16 03:58:55,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:58:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 144114 states and 164941 transitions. [2024-11-16 03:58:55,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2024-11-16 03:58:55,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:55,137 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:58:55,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:58:55,138 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:55,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:55,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2071024629, now seen corresponding path program 1 times [2024-11-16 03:58:55,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:55,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541998337] [2024-11-16 03:58:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:55,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 383 proven. 114 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-16 03:58:57,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541998337] [2024-11-16 03:58:57,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541998337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:58:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204023789] [2024-11-16 03:58:57,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:57,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:58:57,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:58:57,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:58:57,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:58:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:57,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:58:57,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:58:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-16 03:58:57,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:58:57,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204023789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:57,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:58:57,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 03:58:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009752381] [2024-11-16 03:58:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:57,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:57,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:58:57,849 INFO L87 Difference]: Start difference. First operand 144114 states and 164941 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:59:01,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:59:01,339 INFO L93 Difference]: Finished difference Result 292980 states and 334948 transitions. [2024-11-16 03:59:01,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:59:01,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 439 [2024-11-16 03:59:01,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:59:01,557 INFO L225 Difference]: With dead ends: 292980 [2024-11-16 03:59:01,557 INFO L226 Difference]: Without dead ends: 149656 [2024-11-16 03:59:01,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:59:01,623 INFO L432 NwaCegarLoop]: 1051 mSDtfsCounter, 687 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:59:01,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1188 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:59:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149656 states.