./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.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 2bcf8e94e45f6297ffcab2cc85820f358b499c9f0c3c1268c03065e80498ea32 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:01:34,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:01:34,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 01:01:34,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:01:34,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:01:34,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:01:34,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:01:34,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:01:34,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:01:34,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:01:34,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:01:34,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:01:34,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:01:34,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:01:34,796 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:01:34,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:01:34,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:01:34,797 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:01:34,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:01:34,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:01:34,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:01:34,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:01:34,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:01:34,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:01:34,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:01:34,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:01:34,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:01:34,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:01:34,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:01:34,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:01:34,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:01:34,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:01:34,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:01:34,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:01:34,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:01:34,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:01:34,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:01:34,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:01:34,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:01:34,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:01:34,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:01:34,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:01:34,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bcf8e94e45f6297ffcab2cc85820f358b499c9f0c3c1268c03065e80498ea32 [2024-11-10 01:01:35,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:01:35,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:01:35,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:01:35,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:01:35,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:01:35,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-10 01:01:36,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:01:37,061 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:01:37,062 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-10 01:01:37,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15ee75246/d272648dedfd4366b7de197a2e57420a/FLAGf4ea8c860 [2024-11-10 01:01:37,119 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15ee75246/d272648dedfd4366b7de197a2e57420a [2024-11-10 01:01:37,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:01:37,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:01:37,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:01:37,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:01:37,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:01:37,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:01:37" (1/1) ... [2024-11-10 01:01:37,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61cf4276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:37, skipping insertion in model container [2024-11-10 01:01:37,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:01:37" (1/1) ... [2024-11-10 01:01:37,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:01:37,734 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c[20454,20467] [2024-11-10 01:01:37,777 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c[22791,22804] [2024-11-10 01:01:38,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:01:38,505 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:01:38,560 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c[20454,20467] [2024-11-10 01:01:38,568 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/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c[22791,22804] [2024-11-10 01:01:38,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:01:38,959 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:01:38,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38 WrapperNode [2024-11-10 01:01:38,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:01:38,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:01:38,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:01:38,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:01:38,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,310 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-11-10 01:01:39,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:01:39,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:01:39,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:01:39,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:01:39,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,631 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]. [2024-11-10 01:01:39,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,876 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:39,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:01:39,998 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:01:39,998 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:01:39,998 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:01:39,999 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (1/1) ... [2024-11-10 01:01:40,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:01:40,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:01:40,069 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) [2024-11-10 01:01:40,072 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 [2024-11-10 01:01:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:01:40,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:01:40,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:01:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:01:40,325 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:01:40,328 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:01:45,687 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5256: havoc calculate_output3_#t~ret47#1; [2024-11-10 01:01:45,687 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2287: havoc calculate_output_#t~ret45#1; [2024-11-10 01:01:45,688 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3766: havoc calculate_output2_#t~ret46#1; [2024-11-10 01:01:46,028 INFO L? ?]: Removed 2091 outVars from TransFormulas that were not future-live. [2024-11-10 01:01:46,028 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:01:46,075 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:01:46,076 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:01:46,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:01:46 BoogieIcfgContainer [2024-11-10 01:01:46,076 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:01:46,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:01:46,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:01:46,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:01:46,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:01:37" (1/3) ... [2024-11-10 01:01:46,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17930da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:01:46, skipping insertion in model container [2024-11-10 01:01:46,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:01:38" (2/3) ... [2024-11-10 01:01:46,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17930da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:01:46, skipping insertion in model container [2024-11-10 01:01:46,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:01:46" (3/3) ... [2024-11-10 01:01:46,088 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-10 01:01:46,106 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:01:46,106 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:01:46,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:01:46,268 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;@3d6cf359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:01:46,269 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:01:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 939 states, 936 states have (on average 2.622863247863248) internal successors, (2455), 938 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:46,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 01:01:46,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:46,292 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] [2024-11-10 01:01:46,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:46,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:46,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2026613859, now seen corresponding path program 1 times [2024-11-10 01:01:46,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:46,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852587935] [2024-11-10 01:01:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:46,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:46,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:46,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:46,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852587935] [2024-11-10 01:01:46,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852587935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:46,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:46,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 01:01:46,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961094189] [2024-11-10 01:01:46,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:46,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:46,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:46,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:46,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:46,663 INFO L87 Difference]: Start difference. First operand has 939 states, 936 states have (on average 2.622863247863248) internal successors, (2455), 938 states have internal predecessors, (2455), 0 states have call successors, (0), 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 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:51,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:51,373 INFO L93 Difference]: Finished difference Result 2590 states and 6997 transitions. [2024-11-10 01:01:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:51,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-10 01:01:51,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:51,411 INFO L225 Difference]: With dead ends: 2590 [2024-11-10 01:01:51,411 INFO L226 Difference]: Without dead ends: 1623 [2024-11-10 01:01:51,418 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 [2024-11-10 01:01:51,421 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 1680 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:51,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 730 Invalid, 4393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 3697 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-10 01:01:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-11-10 01:01:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1623. [2024-11-10 01:01:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1621 states have (on average 2.4552745219000616) internal successors, (3980), 1622 states have internal predecessors, (3980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:51,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 3980 transitions. [2024-11-10 01:01:51,565 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 3980 transitions. Word has length 22 [2024-11-10 01:01:51,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:51,565 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 3980 transitions. [2024-11-10 01:01:51,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 3980 transitions. [2024-11-10 01:01:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-10 01:01:51,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:51,570 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] [2024-11-10 01:01:51,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:01:51,570 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:51,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:51,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1127102589, now seen corresponding path program 1 times [2024-11-10 01:01:51,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:51,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035957063] [2024-11-10 01:01:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:51,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:51,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:51,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035957063] [2024-11-10 01:01:51,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035957063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:51,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:51,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:01:51,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349380054] [2024-11-10 01:01:51,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:51,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:01:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:51,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:01:51,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:01:51,826 INFO L87 Difference]: Start difference. First operand 1623 states and 3980 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:51,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:51,923 INFO L93 Difference]: Finished difference Result 1686 states and 4077 transitions. [2024-11-10 01:01:51,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:01:51,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-10 01:01:51,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:51,932 INFO L225 Difference]: With dead ends: 1686 [2024-11-10 01:01:51,932 INFO L226 Difference]: Without dead ends: 1623 [2024-11-10 01:01:51,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:01:51,934 INFO L432 NwaCegarLoop]: 2318 mSDtfsCounter, 0 mSDsluCounter, 6899 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9217 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:51,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9217 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:01:51,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-11-10 01:01:51,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1623. [2024-11-10 01:01:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1621 states have (on average 2.424429364589759) internal successors, (3930), 1622 states have internal predecessors, (3930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:51,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 3930 transitions. [2024-11-10 01:01:51,973 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 3930 transitions. Word has length 30 [2024-11-10 01:01:51,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:51,973 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 3930 transitions. [2024-11-10 01:01:51,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:51,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 3930 transitions. [2024-11-10 01:01:51,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 01:01:51,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:51,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:51,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 01:01:51,977 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:51,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:51,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1437015884, now seen corresponding path program 1 times [2024-11-10 01:01:51,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:51,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268420516] [2024-11-10 01:01:51,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:51,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:52,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:52,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268420516] [2024-11-10 01:01:52,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268420516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:52,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:52,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:01:52,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6621617] [2024-11-10 01:01:52,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:52,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:01:52,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:52,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:01:52,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:01:52,284 INFO L87 Difference]: Start difference. First operand 1623 states and 3930 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:52,753 INFO L93 Difference]: Finished difference Result 2449 states and 5232 transitions. [2024-11-10 01:01:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 01:01:52,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-10 01:01:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:52,766 INFO L225 Difference]: With dead ends: 2449 [2024-11-10 01:01:52,766 INFO L226 Difference]: Without dead ends: 2390 [2024-11-10 01:01:52,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-10 01:01:52,770 INFO L432 NwaCegarLoop]: 2264 mSDtfsCounter, 16434 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16434 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:52,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16434 Valid, 4956 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 01:01:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2024-11-10 01:01:52,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1679. [2024-11-10 01:01:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1677 states have (on average 2.396541443053071) internal successors, (4019), 1678 states have internal predecessors, (4019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 4019 transitions. [2024-11-10 01:01:52,822 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 4019 transitions. Word has length 79 [2024-11-10 01:01:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:52,822 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 4019 transitions. [2024-11-10 01:01:52,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 4019 transitions. [2024-11-10 01:01:52,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 01:01:52,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:52,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:52,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 01:01:52,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:52,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash 282155758, now seen corresponding path program 1 times [2024-11-10 01:01:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622393808] [2024-11-10 01:01:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:53,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:53,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622393808] [2024-11-10 01:01:53,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622393808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:53,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:53,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:01:53,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372946603] [2024-11-10 01:01:53,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:53,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:01:53,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:01:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:01:53,315 INFO L87 Difference]: Start difference. First operand 1679 states and 4019 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:53,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:53,770 INFO L93 Difference]: Finished difference Result 1797 states and 4203 transitions. [2024-11-10 01:01:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:01:53,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-10 01:01:53,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:53,781 INFO L225 Difference]: With dead ends: 1797 [2024-11-10 01:01:53,782 INFO L226 Difference]: Without dead ends: 1682 [2024-11-10 01:01:53,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-10 01:01:53,785 INFO L432 NwaCegarLoop]: 2261 mSDtfsCounter, 8804 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8804 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:53,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8804 Valid, 2804 Invalid, 112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:01:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-10 01:01:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1679. [2024-11-10 01:01:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1677 states have (on average 2.3959451401311864) internal successors, (4018), 1678 states have internal predecessors, (4018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 4018 transitions. [2024-11-10 01:01:53,836 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 4018 transitions. Word has length 81 [2024-11-10 01:01:53,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:53,837 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 4018 transitions. [2024-11-10 01:01:53,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 4018 transitions. [2024-11-10 01:01:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 01:01:53,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:53,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:53,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 01:01:53,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:53,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:53,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1880713111, now seen corresponding path program 1 times [2024-11-10 01:01:53,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:53,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238736402] [2024-11-10 01:01:53,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:53,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:53,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:53,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238736402] [2024-11-10 01:01:53,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238736402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:53,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:53,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:53,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359682543] [2024-11-10 01:01:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:53,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:53,962 INFO L87 Difference]: Start difference. First operand 1679 states and 4018 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:54,017 INFO L93 Difference]: Finished difference Result 1897 states and 4360 transitions. [2024-11-10 01:01:54,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:54,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-10 01:01:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:54,029 INFO L225 Difference]: With dead ends: 1897 [2024-11-10 01:01:54,029 INFO L226 Difference]: Without dead ends: 1782 [2024-11-10 01:01:54,031 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 [2024-11-10 01:01:54,032 INFO L432 NwaCegarLoop]: 2266 mSDtfsCounter, 2184 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:54,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 2352 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2024-11-10 01:01:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1777. [2024-11-10 01:01:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1775 states have (on average 2.3492957746478873) internal successors, (4170), 1776 states have internal predecessors, (4170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 4170 transitions. [2024-11-10 01:01:54,085 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 4170 transitions. Word has length 82 [2024-11-10 01:01:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:54,086 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 4170 transitions. [2024-11-10 01:01:54,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 4170 transitions. [2024-11-10 01:01:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:54,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:54,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:54,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 01:01:54,089 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:54,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:54,090 INFO L85 PathProgramCache]: Analyzing trace with hash -613981456, now seen corresponding path program 1 times [2024-11-10 01:01:54,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:54,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106453258] [2024-11-10 01:01:54,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:54,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:54,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106453258] [2024-11-10 01:01:54,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106453258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:54,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:54,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:54,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272660539] [2024-11-10 01:01:54,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:54,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:54,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:54,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:54,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:54,182 INFO L87 Difference]: Start difference. First operand 1777 states and 4170 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:54,235 INFO L93 Difference]: Finished difference Result 2187 states and 4808 transitions. [2024-11-10 01:01:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:54,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:54,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:54,246 INFO L225 Difference]: With dead ends: 2187 [2024-11-10 01:01:54,246 INFO L226 Difference]: Without dead ends: 1974 [2024-11-10 01:01:54,247 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 [2024-11-10 01:01:54,248 INFO L432 NwaCegarLoop]: 2339 mSDtfsCounter, 2201 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:54,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 2437 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-10 01:01:54,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1971. [2024-11-10 01:01:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1969 states have (on average 2.2696800406297615) internal successors, (4469), 1970 states have internal predecessors, (4469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 4469 transitions. [2024-11-10 01:01:54,309 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 4469 transitions. Word has length 83 [2024-11-10 01:01:54,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:54,310 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 4469 transitions. [2024-11-10 01:01:54,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 4469 transitions. [2024-11-10 01:01:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:54,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:54,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:54,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 01:01:54,313 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:54,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:54,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1386522256, now seen corresponding path program 1 times [2024-11-10 01:01:54,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:54,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250288278] [2024-11-10 01:01:54,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:54,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:54,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:54,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250288278] [2024-11-10 01:01:54,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250288278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:54,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:54,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:54,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734504000] [2024-11-10 01:01:54,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:54,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:54,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:54,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:54,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:54,396 INFO L87 Difference]: Start difference. First operand 1971 states and 4469 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:54,451 INFO L93 Difference]: Finished difference Result 2753 states and 5677 transitions. [2024-11-10 01:01:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:54,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:54,462 INFO L225 Difference]: With dead ends: 2753 [2024-11-10 01:01:54,462 INFO L226 Difference]: Without dead ends: 2346 [2024-11-10 01:01:54,464 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 [2024-11-10 01:01:54,464 INFO L432 NwaCegarLoop]: 2327 mSDtfsCounter, 2197 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:54,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 2433 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:54,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2024-11-10 01:01:54,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2343. [2024-11-10 01:01:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2341 states have (on average 2.1507902605724047) internal successors, (5035), 2342 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 5035 transitions. [2024-11-10 01:01:54,533 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 5035 transitions. Word has length 83 [2024-11-10 01:01:54,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:54,533 INFO L471 AbstractCegarLoop]: Abstraction has 2343 states and 5035 transitions. [2024-11-10 01:01:54,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 5035 transitions. [2024-11-10 01:01:54,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:54,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:54,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:54,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 01:01:54,536 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:54,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1907035312, now seen corresponding path program 1 times [2024-11-10 01:01:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:54,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787344154] [2024-11-10 01:01:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:54,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:54,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787344154] [2024-11-10 01:01:54,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787344154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:54,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:54,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:54,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142131961] [2024-11-10 01:01:54,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:54,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:54,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:54,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:54,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:54,624 INFO L87 Difference]: Start difference. First operand 2343 states and 5035 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:54,690 INFO L93 Difference]: Finished difference Result 3837 states and 7319 transitions. [2024-11-10 01:01:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:54,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:54,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:54,705 INFO L225 Difference]: With dead ends: 3837 [2024-11-10 01:01:54,706 INFO L226 Difference]: Without dead ends: 3058 [2024-11-10 01:01:54,708 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 [2024-11-10 01:01:54,709 INFO L432 NwaCegarLoop]: 2325 mSDtfsCounter, 2195 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2195 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:54,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2195 Valid, 2435 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2024-11-10 01:01:54,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 3055. [2024-11-10 01:01:54,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3055 states, 3053 states have (on average 1.9990173599737964) internal successors, (6103), 3054 states have internal predecessors, (6103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 6103 transitions. [2024-11-10 01:01:54,793 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 6103 transitions. Word has length 83 [2024-11-10 01:01:54,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:54,794 INFO L471 AbstractCegarLoop]: Abstraction has 3055 states and 6103 transitions. [2024-11-10 01:01:54,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 6103 transitions. [2024-11-10 01:01:54,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:54,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:54,795 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:54,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 01:01:54,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:54,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1892585456, now seen corresponding path program 1 times [2024-11-10 01:01:54,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:54,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658874876] [2024-11-10 01:01:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:54,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:54,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:54,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658874876] [2024-11-10 01:01:54,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658874876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:54,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:54,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704683417] [2024-11-10 01:01:54,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:54,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:54,865 INFO L87 Difference]: Start difference. First operand 3055 states and 6103 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:54,942 INFO L93 Difference]: Finished difference Result 5909 states and 10411 transitions. [2024-11-10 01:01:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:54,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:54,973 INFO L225 Difference]: With dead ends: 5909 [2024-11-10 01:01:54,973 INFO L226 Difference]: Without dead ends: 4418 [2024-11-10 01:01:54,981 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 [2024-11-10 01:01:54,981 INFO L432 NwaCegarLoop]: 2323 mSDtfsCounter, 2193 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:54,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 2437 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:54,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2024-11-10 01:01:55,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 4415. [2024-11-10 01:01:55,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4413 states have (on average 1.83797869929753) internal successors, (8111), 4414 states have internal predecessors, (8111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 8111 transitions. [2024-11-10 01:01:55,106 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 8111 transitions. Word has length 83 [2024-11-10 01:01:55,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:55,107 INFO L471 AbstractCegarLoop]: Abstraction has 4415 states and 8111 transitions. [2024-11-10 01:01:55,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:55,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 8111 transitions. [2024-11-10 01:01:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:55,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:55,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:55,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 01:01:55,108 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:55,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:55,108 INFO L85 PathProgramCache]: Analyzing trace with hash -310779088, now seen corresponding path program 1 times [2024-11-10 01:01:55,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:55,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722875590] [2024-11-10 01:01:55,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:55,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:55,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:55,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722875590] [2024-11-10 01:01:55,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722875590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:55,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:55,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:55,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218039397] [2024-11-10 01:01:55,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:55,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:55,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:55,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:55,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:55,183 INFO L87 Difference]: Start difference. First operand 4415 states and 8111 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:55,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:55,347 INFO L93 Difference]: Finished difference Result 9861 states and 16211 transitions. [2024-11-10 01:01:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:55,369 INFO L225 Difference]: With dead ends: 9861 [2024-11-10 01:01:55,369 INFO L226 Difference]: Without dead ends: 7010 [2024-11-10 01:01:55,374 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 [2024-11-10 01:01:55,375 INFO L432 NwaCegarLoop]: 2321 mSDtfsCounter, 2191 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:55,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 2439 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2024-11-10 01:01:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 7007. [2024-11-10 01:01:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7005 states have (on average 1.694646680942184) internal successors, (11871), 7006 states have internal predecessors, (11871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:55,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 11871 transitions. [2024-11-10 01:01:55,576 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 11871 transitions. Word has length 83 [2024-11-10 01:01:55,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:55,576 INFO L471 AbstractCegarLoop]: Abstraction has 7007 states and 11871 transitions. [2024-11-10 01:01:55,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 11871 transitions. [2024-11-10 01:01:55,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:55,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:55,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:55,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 01:01:55,578 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:55,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash -835056143, now seen corresponding path program 1 times [2024-11-10 01:01:55,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:55,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770865702] [2024-11-10 01:01:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:55,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:55,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770865702] [2024-11-10 01:01:55,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770865702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:55,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:55,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:01:55,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039140598] [2024-11-10 01:01:55,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:55,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:01:55,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:55,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:01:55,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:01:55,868 INFO L87 Difference]: Start difference. First operand 7007 states and 11871 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:56,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:56,025 INFO L93 Difference]: Finished difference Result 7202 states and 12129 transitions. [2024-11-10 01:01:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:01:56,025 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:56,042 INFO L225 Difference]: With dead ends: 7202 [2024-11-10 01:01:56,042 INFO L226 Difference]: Without dead ends: 7199 [2024-11-10 01:01:56,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:01:56,046 INFO L432 NwaCegarLoop]: 2264 mSDtfsCounter, 0 mSDsluCounter, 13571 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15835 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:56,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15835 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:56,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7199 states. [2024-11-10 01:01:56,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7199 to 7199. [2024-11-10 01:01:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7199 states, 7197 states have (on average 1.6716687508684174) internal successors, (12031), 7198 states have internal predecessors, (12031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7199 states to 7199 states and 12031 transitions. [2024-11-10 01:01:56,244 INFO L78 Accepts]: Start accepts. Automaton has 7199 states and 12031 transitions. Word has length 83 [2024-11-10 01:01:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:56,245 INFO L471 AbstractCegarLoop]: Abstraction has 7199 states and 12031 transitions. [2024-11-10 01:01:56,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:56,246 INFO L276 IsEmpty]: Start isEmpty. Operand 7199 states and 12031 transitions. [2024-11-10 01:01:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 01:01:56,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:56,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:56,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 01:01:56,247 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:56,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:56,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1104447952, now seen corresponding path program 1 times [2024-11-10 01:01:56,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:56,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7965830] [2024-11-10 01:01:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:56,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:56,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7965830] [2024-11-10 01:01:56,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7965830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:56,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:56,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:56,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051778256] [2024-11-10 01:01:56,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:56,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:56,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:56,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:56,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:56,324 INFO L87 Difference]: Start difference. First operand 7199 states and 12031 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:56,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:56,503 INFO L93 Difference]: Finished difference Result 17957 states and 27523 transitions. [2024-11-10 01:01:56,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:56,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-10 01:01:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:56,532 INFO L225 Difference]: With dead ends: 17957 [2024-11-10 01:01:56,533 INFO L226 Difference]: Without dead ends: 12322 [2024-11-10 01:01:56,544 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 [2024-11-10 01:01:56,545 INFO L432 NwaCegarLoop]: 2337 mSDtfsCounter, 2199 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:56,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 2439 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12322 states. [2024-11-10 01:01:56,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12322 to 12319. [2024-11-10 01:01:56,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12319 states, 12317 states have (on average 1.5587399529106114) internal successors, (19199), 12318 states have internal predecessors, (19199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:56,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12319 states to 12319 states and 19199 transitions. [2024-11-10 01:01:56,927 INFO L78 Accepts]: Start accepts. Automaton has 12319 states and 19199 transitions. Word has length 83 [2024-11-10 01:01:56,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:56,928 INFO L471 AbstractCegarLoop]: Abstraction has 12319 states and 19199 transitions. [2024-11-10 01:01:56,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12319 states and 19199 transitions. [2024-11-10 01:01:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 01:01:56,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:56,929 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:01:56,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 01:01:56,930 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:56,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 410277008, now seen corresponding path program 1 times [2024-11-10 01:01:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:56,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303703668] [2024-11-10 01:01:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:56,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:56,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:56,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303703668] [2024-11-10 01:01:56,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303703668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:56,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:56,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:01:56,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815802796] [2024-11-10 01:01:56,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:56,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:01:56,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:56,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:01:56,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:01:56,991 INFO L87 Difference]: Start difference. First operand 12319 states and 19199 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:01:57,214 INFO L93 Difference]: Finished difference Result 23593 states and 35464 transitions. [2024-11-10 01:01:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:01:57,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-10 01:01:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:01:57,253 INFO L225 Difference]: With dead ends: 23593 [2024-11-10 01:01:57,253 INFO L226 Difference]: Without dead ends: 17573 [2024-11-10 01:01:57,266 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 [2024-11-10 01:01:57,268 INFO L432 NwaCegarLoop]: 2344 mSDtfsCounter, 2200 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2200 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 01:01:57,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2200 Valid, 2438 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 01:01:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17573 states. [2024-11-10 01:01:57,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17573 to 17570. [2024-11-10 01:01:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17570 states, 17568 states have (on average 1.5119535519125684) internal successors, (26562), 17569 states have internal predecessors, (26562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:57,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17570 states to 17570 states and 26562 transitions. [2024-11-10 01:01:57,734 INFO L78 Accepts]: Start accepts. Automaton has 17570 states and 26562 transitions. Word has length 85 [2024-11-10 01:01:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:01:57,734 INFO L471 AbstractCegarLoop]: Abstraction has 17570 states and 26562 transitions. [2024-11-10 01:01:57,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:01:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 17570 states and 26562 transitions. [2024-11-10 01:01:57,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 01:01:57,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:01:57,737 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 01:01:57,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 01:01:57,737 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:01:57,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:01:57,738 INFO L85 PathProgramCache]: Analyzing trace with hash 964220084, now seen corresponding path program 1 times [2024-11-10 01:01:57,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:01:57,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911303628] [2024-11-10 01:01:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:01:57,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:01:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:01:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:01:58,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:01:58,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911303628] [2024-11-10 01:01:58,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911303628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:01:58,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:01:58,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:01:58,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351170440] [2024-11-10 01:01:58,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:01:58,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:01:58,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:01:58,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:01:58,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:01:58,102 INFO L87 Difference]: Start difference. First operand 17570 states and 26562 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:02,956 INFO L93 Difference]: Finished difference Result 19829 states and 32001 transitions. [2024-11-10 01:02:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:02:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-10 01:02:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:02,996 INFO L225 Difference]: With dead ends: 19829 [2024-11-10 01:02:02,997 INFO L226 Difference]: Without dead ends: 18322 [2024-11-10 01:02:03,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:02:03,004 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 3234 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 5192 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3234 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 5413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 5192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:03,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3234 Valid, 1473 Invalid, 5413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 5192 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-10 01:02:03,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18322 states. [2024-11-10 01:02:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18322 to 18322. [2024-11-10 01:02:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18322 states, 18320 states have (on average 1.5283842794759825) internal successors, (28000), 18321 states have internal predecessors, (28000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18322 states to 18322 states and 28000 transitions. [2024-11-10 01:02:03,658 INFO L78 Accepts]: Start accepts. Automaton has 18322 states and 28000 transitions. Word has length 98 [2024-11-10 01:02:03,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:03,658 INFO L471 AbstractCegarLoop]: Abstraction has 18322 states and 28000 transitions. [2024-11-10 01:02:03,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:03,659 INFO L276 IsEmpty]: Start isEmpty. Operand 18322 states and 28000 transitions. [2024-11-10 01:02:03,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:03,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:03,666 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:03,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 01:02:03,666 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:03,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1965372354, now seen corresponding path program 1 times [2024-11-10 01:02:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:03,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995948846] [2024-11-10 01:02:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 01:02:04,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:04,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995948846] [2024-11-10 01:02:04,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995948846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:04,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:04,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:04,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128153079] [2024-11-10 01:02:04,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:04,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:04,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:04,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:04,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:04,040 INFO L87 Difference]: Start difference. First operand 18322 states and 28000 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:05,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:05,921 INFO L93 Difference]: Finished difference Result 133674 states and 191600 transitions. [2024-11-10 01:02:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:05,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 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 [2024-11-10 01:02:05,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:06,204 INFO L225 Difference]: With dead ends: 133674 [2024-11-10 01:02:06,204 INFO L226 Difference]: Without dead ends: 117671 [2024-11-10 01:02:06,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:06,237 INFO L432 NwaCegarLoop]: 2366 mSDtfsCounter, 14021 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14021 SdHoareTripleChecker+Valid, 5799 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:06,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14021 Valid, 5799 Invalid, 205 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 01:02:06,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117671 states. [2024-11-10 01:02:07,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117671 to 34322. [2024-11-10 01:02:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34322 states, 34320 states have (on average 1.4722610722610723) internal successors, (50528), 34321 states have internal predecessors, (50528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34322 states to 34322 states and 50528 transitions. [2024-11-10 01:02:07,798 INFO L78 Accepts]: Start accepts. Automaton has 34322 states and 50528 transitions. Word has length 108 [2024-11-10 01:02:07,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:07,799 INFO L471 AbstractCegarLoop]: Abstraction has 34322 states and 50528 transitions. [2024-11-10 01:02:07,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand 34322 states and 50528 transitions. [2024-11-10 01:02:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:07,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:07,806 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:07,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 01:02:07,807 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:07,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1557054142, now seen corresponding path program 1 times [2024-11-10 01:02:07,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:07,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891537973] [2024-11-10 01:02:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:07,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 01:02:08,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:08,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891537973] [2024-11-10 01:02:08,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891537973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:08,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:08,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:08,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979981958] [2024-11-10 01:02:08,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:08,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:08,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:08,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:08,328 INFO L87 Difference]: Start difference. First operand 34322 states and 50528 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:10,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:10,711 INFO L93 Difference]: Finished difference Result 149674 states and 214128 transitions. [2024-11-10 01:02:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:10,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 [2024-11-10 01:02:10,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:10,985 INFO L225 Difference]: With dead ends: 149674 [2024-11-10 01:02:10,986 INFO L226 Difference]: Without dead ends: 133671 [2024-11-10 01:02:11,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:11,029 INFO L432 NwaCegarLoop]: 2362 mSDtfsCounter, 14078 mSDsluCounter, 3345 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14078 SdHoareTripleChecker+Valid, 5707 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:11,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14078 Valid, 5707 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:11,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133671 states. [2024-11-10 01:02:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133671 to 58386. [2024-11-10 01:02:12,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58386 states, 58384 states have (on average 1.44203891477117) internal successors, (84192), 58385 states have internal predecessors, (84192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:13,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58386 states to 58386 states and 84192 transitions. [2024-11-10 01:02:13,046 INFO L78 Accepts]: Start accepts. Automaton has 58386 states and 84192 transitions. Word has length 108 [2024-11-10 01:02:13,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:13,047 INFO L471 AbstractCegarLoop]: Abstraction has 58386 states and 84192 transitions. [2024-11-10 01:02:13,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 58386 states and 84192 transitions. [2024-11-10 01:02:13,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:13,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:13,055 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:13,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 01:02:13,055 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:13,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:13,056 INFO L85 PathProgramCache]: Analyzing trace with hash 555644414, now seen corresponding path program 1 times [2024-11-10 01:02:13,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:13,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979296897] [2024-11-10 01:02:13,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:13,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 01:02:13,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:13,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979296897] [2024-11-10 01:02:13,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979296897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:13,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:13,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:13,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380692648] [2024-11-10 01:02:13,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:13,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:13,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:13,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:13,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:13,539 INFO L87 Difference]: Start difference. First operand 58386 states and 84192 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:16,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:16,360 INFO L93 Difference]: Finished difference Result 165674 states and 236656 transitions. [2024-11-10 01:02:16,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:16,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 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 [2024-11-10 01:02:16,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:16,673 INFO L225 Difference]: With dead ends: 165674 [2024-11-10 01:02:16,674 INFO L226 Difference]: Without dead ends: 149671 [2024-11-10 01:02:16,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:16,723 INFO L432 NwaCegarLoop]: 2358 mSDtfsCounter, 14138 mSDsluCounter, 3262 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14138 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:16,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14138 Valid, 5620 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149671 states. [2024-11-10 01:02:19,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149671 to 74386. [2024-11-10 01:02:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74386 states, 74384 states have (on average 1.4347171434717143) internal successors, (106720), 74385 states have internal predecessors, (106720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74386 states to 74386 states and 106720 transitions. [2024-11-10 01:02:19,425 INFO L78 Accepts]: Start accepts. Automaton has 74386 states and 106720 transitions. Word has length 108 [2024-11-10 01:02:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:19,425 INFO L471 AbstractCegarLoop]: Abstraction has 74386 states and 106720 transitions. [2024-11-10 01:02:19,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand 74386 states and 106720 transitions. [2024-11-10 01:02:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:19,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:19,440 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:19,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 01:02:19,440 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:19,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash 541194558, now seen corresponding path program 1 times [2024-11-10 01:02:19,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:19,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752872420] [2024-11-10 01:02:19,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 01:02:19,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:19,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752872420] [2024-11-10 01:02:19,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752872420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:19,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:19,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:19,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117115590] [2024-11-10 01:02:19,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:19,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:19,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:19,736 INFO L87 Difference]: Start difference. First operand 74386 states and 106720 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:23,546 INFO L93 Difference]: Finished difference Result 181674 states and 259184 transitions. [2024-11-10 01:02:23,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:23,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 [2024-11-10 01:02:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:23,828 INFO L225 Difference]: With dead ends: 181674 [2024-11-10 01:02:23,828 INFO L226 Difference]: Without dead ends: 165671 [2024-11-10 01:02:23,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:23,873 INFO L432 NwaCegarLoop]: 2354 mSDtfsCounter, 14199 mSDsluCounter, 3280 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14199 SdHoareTripleChecker+Valid, 5634 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:23,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14199 Valid, 5634 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:23,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165671 states. [2024-11-10 01:02:26,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165671 to 90386. [2024-11-10 01:02:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90386 states, 90384 states have (on average 1.4299876084262702) internal successors, (129248), 90385 states have internal predecessors, (129248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90386 states to 90386 states and 129248 transitions. [2024-11-10 01:02:27,024 INFO L78 Accepts]: Start accepts. Automaton has 90386 states and 129248 transitions. Word has length 108 [2024-11-10 01:02:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:27,024 INFO L471 AbstractCegarLoop]: Abstraction has 90386 states and 129248 transitions. [2024-11-10 01:02:27,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 90386 states and 129248 transitions. [2024-11-10 01:02:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:27,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:27,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:27,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 01:02:27,033 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:27,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1662169986, now seen corresponding path program 1 times [2024-11-10 01:02:27,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081336083] [2024-11-10 01:02:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:27,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 01:02:27,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:27,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081336083] [2024-11-10 01:02:27,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081336083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:27,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:27,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156830199] [2024-11-10 01:02:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:27,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:27,299 INFO L87 Difference]: Start difference. First operand 90386 states and 129248 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:31,265 INFO L93 Difference]: Finished difference Result 197674 states and 281712 transitions. [2024-11-10 01:02:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 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 [2024-11-10 01:02:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:31,559 INFO L225 Difference]: With dead ends: 197674 [2024-11-10 01:02:31,559 INFO L226 Difference]: Without dead ends: 181671 [2024-11-10 01:02:31,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:31,605 INFO L432 NwaCegarLoop]: 2363 mSDtfsCounter, 14034 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14034 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:31,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14034 Valid, 5793 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:02:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181671 states. [2024-11-10 01:02:34,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181671 to 106386. [2024-11-10 01:02:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106386 states, 106384 states have (on average 1.426680703865243) internal successors, (151776), 106385 states have internal predecessors, (151776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106386 states to 106386 states and 151776 transitions. [2024-11-10 01:02:35,290 INFO L78 Accepts]: Start accepts. Automaton has 106386 states and 151776 transitions. Word has length 108 [2024-11-10 01:02:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:02:35,291 INFO L471 AbstractCegarLoop]: Abstraction has 106386 states and 151776 transitions. [2024-11-10 01:02:35,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 106386 states and 151776 transitions. [2024-11-10 01:02:35,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-10 01:02:35,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:02:35,299 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:02:35,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 01:02:35,300 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:02:35,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:02:35,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1839128446, now seen corresponding path program 1 times [2024-11-10 01:02:35,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:02:35,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844123258] [2024-11-10 01:02:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:02:35,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:02:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:02:35,554 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 01:02:35,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:02:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844123258] [2024-11-10 01:02:35,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844123258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:02:35,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:02:35,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:02:35,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127833307] [2024-11-10 01:02:35,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:02:35,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:02:35,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:02:35,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:02:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:02:35,557 INFO L87 Difference]: Start difference. First operand 106386 states and 151776 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 01:02:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:02:40,066 INFO L93 Difference]: Finished difference Result 213674 states and 304240 transitions. [2024-11-10 01:02:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:02:40,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 [2024-11-10 01:02:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:02:40,505 INFO L225 Difference]: With dead ends: 213674 [2024-11-10 01:02:40,506 INFO L226 Difference]: Without dead ends: 197671 [2024-11-10 01:02:40,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:02:40,537 INFO L432 NwaCegarLoop]: 2366 mSDtfsCounter, 13948 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13948 SdHoareTripleChecker+Valid, 6004 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:02:40,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13948 Valid, 6004 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 01:02:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197671 states.