./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label06.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/eca-rers2012/Problem16_label06.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 30e99cc503a65b2b00d0d341e953b7b3e491fbf488860704d5a2cfc226394b22 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:45:14,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:45:14,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:45:14,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:45:14,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:45:14,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:45:14,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:45:14,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:45:14,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:45:14,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:45:14,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:45:14,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:45:14,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:45:14,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:45:14,904 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:45:14,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:45:14,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:45:14,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:45:14,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:45:14,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:45:14,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:45:14,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:45:14,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:45:14,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:45:14,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:45:14,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:45:14,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:45:14,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:45:14,910 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:45:14,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:45:14,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:45:14,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:45:14,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:45:14,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:45:14,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:45:14,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:45:14,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:45:14,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:45:14,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:45:14,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:45:14,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:45:14,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:45:14,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e99cc503a65b2b00d0d341e953b7b3e491fbf488860704d5a2cfc226394b22 [2024-11-09 19:45:15,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:45:15,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:45:15,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:45:15,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:45:15,143 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:45:15,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label06.c [2024-11-09 19:45:16,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:45:16,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:45:16,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label06.c [2024-11-09 19:45:16,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9b2ff81/3013f19b80c64fb8864306be3e9a3685/FLAG195a6c5de [2024-11-09 19:45:16,925 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b9b2ff81/3013f19b80c64fb8864306be3e9a3685 [2024-11-09 19:45:16,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:45:16,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:45:16,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:45:16,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:45:16,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:45:16,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:45:16" (1/1) ... [2024-11-09 19:45:16,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e66766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:16, skipping insertion in model container [2024-11-09 19:45:16,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:45:16" (1/1) ... [2024-11-09 19:45:16,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:45:17,191 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label06.c[1375,1388] [2024-11-09 19:45:17,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:45:17,496 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:45:17,508 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label06.c[1375,1388] [2024-11-09 19:45:17,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:45:17,649 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:45:17,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17 WrapperNode [2024-11-09 19:45:17,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:45:17,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:45:17,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:45:17,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:45:17,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,780 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-09 19:45:17,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:45:17,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:45:17,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:45:17,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:45:17,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,800 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,893 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]. [2024-11-09 19:45:17,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,948 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:45:17,990 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:45:17,990 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:45:17,991 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:45:17,992 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (1/1) ... [2024-11-09 19:45:17,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:45:18,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:18,026 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) [2024-11-09 19:45:18,034 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 [2024-11-09 19:45:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:45:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:45:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:45:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:45:18,171 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:45:18,173 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:45:20,131 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-09 19:45:20,244 INFO L? ?]: Removed 757 outVars from TransFormulas that were not future-live. [2024-11-09 19:45:20,245 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:45:20,271 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:45:20,271 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:45:20,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:45:20 BoogieIcfgContainer [2024-11-09 19:45:20,271 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:45:20,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:45:20,278 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:45:20,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:45:20,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:45:16" (1/3) ... [2024-11-09 19:45:20,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12868128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:45:20, skipping insertion in model container [2024-11-09 19:45:20,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:45:17" (2/3) ... [2024-11-09 19:45:20,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12868128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:45:20, skipping insertion in model container [2024-11-09 19:45:20,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:45:20" (3/3) ... [2024-11-09 19:45:20,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label06.c [2024-11-09 19:45:20,297 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:45:20,298 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:45:20,367 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:45:20,373 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;@5a1dbcad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:45:20,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:45:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 2.4886649874055418) internal successors, (988), 398 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 19:45:20,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:20,385 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:20,386 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:20,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:20,390 INFO L85 PathProgramCache]: Analyzing trace with hash -915451918, now seen corresponding path program 1 times [2024-11-09 19:45:20,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:20,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023813787] [2024-11-09 19:45:20,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:20,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:20,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:45:20,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:20,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023813787] [2024-11-09 19:45:20,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023813787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:20,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:20,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:20,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778140980] [2024-11-09 19:45:20,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:20,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:20,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:20,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:20,721 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 2.4886649874055418) internal successors, (988), 398 states have internal predecessors, (988), 0 states have call successors, (0), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:22,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:22,567 INFO L93 Difference]: Finished difference Result 1128 states and 2895 transitions. [2024-11-09 19:45:22,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:22,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2024-11-09 19:45:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:22,581 INFO L225 Difference]: With dead ends: 1128 [2024-11-09 19:45:22,581 INFO L226 Difference]: Without dead ends: 665 [2024-11-09 19:45:22,585 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 [2024-11-09 19:45:22,587 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 612 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:22,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 227 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:45:22,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-09 19:45:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-09 19:45:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 2.3689759036144578) internal successors, (1573), 664 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1573 transitions. [2024-11-09 19:45:22,645 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1573 transitions. Word has length 12 [2024-11-09 19:45:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:22,649 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1573 transitions. [2024-11-09 19:45:22,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:22,650 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1573 transitions. [2024-11-09 19:45:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 19:45:22,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:22,652 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:45:22,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:45:22,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:22,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -162848504, now seen corresponding path program 1 times [2024-11-09 19:45:22,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:22,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620255127] [2024-11-09 19:45:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:45:22,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620255127] [2024-11-09 19:45:22,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620255127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:22,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:22,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:22,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230926068] [2024-11-09 19:45:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:22,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:22,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:22,838 INFO L87 Difference]: Start difference. First operand 665 states and 1573 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:24,602 INFO L93 Difference]: Finished difference Result 1988 states and 4713 transitions. [2024-11-09 19:45:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:24,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-09 19:45:24,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:24,614 INFO L225 Difference]: With dead ends: 1988 [2024-11-09 19:45:24,614 INFO L226 Difference]: Without dead ends: 1325 [2024-11-09 19:45:24,619 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 [2024-11-09 19:45:24,620 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 560 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:24,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 203 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:45:24,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-09 19:45:24,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1325. [2024-11-09 19:45:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 2.1638972809667676) internal successors, (2865), 1324 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2865 transitions. [2024-11-09 19:45:24,718 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2865 transitions. Word has length 84 [2024-11-09 19:45:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:24,719 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2865 transitions. [2024-11-09 19:45:24,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2865 transitions. [2024-11-09 19:45:24,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 19:45:24,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:24,732 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:24,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:45:24,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:24,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1948822162, now seen corresponding path program 1 times [2024-11-09 19:45:24,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:24,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008725917] [2024-11-09 19:45:24,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:24,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 19:45:25,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:25,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008725917] [2024-11-09 19:45:25,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008725917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:25,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:25,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:25,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555439084] [2024-11-09 19:45:25,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:25,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:25,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:25,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:25,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:25,049 INFO L87 Difference]: Start difference. First operand 1325 states and 2865 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 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) [2024-11-09 19:45:26,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:26,482 INFO L93 Difference]: Finished difference Result 3308 states and 7255 transitions. [2024-11-09 19:45:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:26,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 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 169 [2024-11-09 19:45:26,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:26,491 INFO L225 Difference]: With dead ends: 3308 [2024-11-09 19:45:26,491 INFO L226 Difference]: Without dead ends: 1985 [2024-11-09 19:45:26,493 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 [2024-11-09 19:45:26,493 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 621 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:26,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 159 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:45:26,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2024-11-09 19:45:26,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1655. [2024-11-09 19:45:26,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 2.1632406287787185) internal successors, (3578), 1654 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 3578 transitions. [2024-11-09 19:45:26,518 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 3578 transitions. Word has length 169 [2024-11-09 19:45:26,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:26,520 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 3578 transitions. [2024-11-09 19:45:26,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 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) [2024-11-09 19:45:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 3578 transitions. [2024-11-09 19:45:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-09 19:45:26,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:26,530 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:26,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:45:26,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:26,531 INFO L85 PathProgramCache]: Analyzing trace with hash -222962686, now seen corresponding path program 1 times [2024-11-09 19:45:26,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:26,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791121384] [2024-11-09 19:45:26,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 19:45:26,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:26,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791121384] [2024-11-09 19:45:26,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791121384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:26,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:26,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:26,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732544220] [2024-11-09 19:45:26,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:26,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:26,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:26,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:26,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:26,715 INFO L87 Difference]: Start difference. First operand 1655 states and 3578 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:28,353 INFO L93 Difference]: Finished difference Result 4958 states and 10728 transitions. [2024-11-09 19:45:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:28,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-09 19:45:28,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:28,372 INFO L225 Difference]: With dead ends: 4958 [2024-11-09 19:45:28,376 INFO L226 Difference]: Without dead ends: 3305 [2024-11-09 19:45:28,380 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 [2024-11-09 19:45:28,384 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 514 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:28,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 83 Invalid, 1842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:45:28,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2024-11-09 19:45:28,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 2975. [2024-11-09 19:45:28,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2974 states have (on average 2.1203765971755213) internal successors, (6306), 2974 states have internal predecessors, (6306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:28,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 6306 transitions. [2024-11-09 19:45:28,429 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 6306 transitions. Word has length 221 [2024-11-09 19:45:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:28,430 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 6306 transitions. [2024-11-09 19:45:28,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 2 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:28,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 6306 transitions. [2024-11-09 19:45:28,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-09 19:45:28,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:28,436 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:28,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:45:28,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:28,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1379566100, now seen corresponding path program 1 times [2024-11-09 19:45:28,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:28,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906200404] [2024-11-09 19:45:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:28,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 19:45:28,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:28,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906200404] [2024-11-09 19:45:28,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906200404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:28,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:28,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:45:28,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130526989] [2024-11-09 19:45:28,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:28,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:28,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:28,637 INFO L87 Difference]: Start difference. First operand 2975 states and 6306 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 2 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:30,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:30,057 INFO L93 Difference]: Finished difference Result 7268 states and 15230 transitions. [2024-11-09 19:45:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:30,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 2 states have internal predecessors, (249), 0 states have call successors, (0), 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 324 [2024-11-09 19:45:30,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:30,069 INFO L225 Difference]: With dead ends: 7268 [2024-11-09 19:45:30,070 INFO L226 Difference]: Without dead ends: 4295 [2024-11-09 19:45:30,073 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 [2024-11-09 19:45:30,074 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 541 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:30,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 86 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:45:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4295 states. [2024-11-09 19:45:30,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4295 to 4295. [2024-11-09 19:45:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4294 states have (on average 2.0046576618537495) internal successors, (8608), 4294 states have internal predecessors, (8608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:30,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 8608 transitions. [2024-11-09 19:45:30,134 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 8608 transitions. Word has length 324 [2024-11-09 19:45:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:30,135 INFO L471 AbstractCegarLoop]: Abstraction has 4295 states and 8608 transitions. [2024-11-09 19:45:30,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 2 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 8608 transitions. [2024-11-09 19:45:30,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2024-11-09 19:45:30,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:30,140 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:30,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:45:30,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:30,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:30,141 INFO L85 PathProgramCache]: Analyzing trace with hash -756139266, now seen corresponding path program 1 times [2024-11-09 19:45:30,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:30,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781848317] [2024-11-09 19:45:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:30,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 19:45:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:30,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781848317] [2024-11-09 19:45:30,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781848317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:30,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:30,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:30,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051882543] [2024-11-09 19:45:30,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:30,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:45:30,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:30,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:45:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:45:30,829 INFO L87 Difference]: Start difference. First operand 4295 states and 8608 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:32,632 INFO L93 Difference]: Finished difference Result 8918 states and 17818 transitions. [2024-11-09 19:45:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:45:32,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 438 [2024-11-09 19:45:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:32,645 INFO L225 Difference]: With dead ends: 8918 [2024-11-09 19:45:32,645 INFO L226 Difference]: Without dead ends: 4625 [2024-11-09 19:45:32,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:45:32,649 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 389 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:32,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 328 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 19:45:32,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4625 states. [2024-11-09 19:45:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4625 to 4625. [2024-11-09 19:45:32,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4625 states, 4624 states have (on average 1.9909169550173011) internal successors, (9206), 4624 states have internal predecessors, (9206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4625 states to 4625 states and 9206 transitions. [2024-11-09 19:45:32,711 INFO L78 Accepts]: Start accepts. Automaton has 4625 states and 9206 transitions. Word has length 438 [2024-11-09 19:45:32,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:32,712 INFO L471 AbstractCegarLoop]: Abstraction has 4625 states and 9206 transitions. [2024-11-09 19:45:32,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:32,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4625 states and 9206 transitions. [2024-11-09 19:45:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-09 19:45:32,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:32,719 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:32,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:45:32,719 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:32,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:32,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1340405348, now seen corresponding path program 1 times [2024-11-09 19:45:32,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:32,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507584431] [2024-11-09 19:45:32,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:32,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 19:45:33,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:33,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507584431] [2024-11-09 19:45:33,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507584431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:33,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:33,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:45:33,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233366923] [2024-11-09 19:45:33,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:33,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:45:33,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:33,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:45:33,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:45:33,197 INFO L87 Difference]: Start difference. First operand 4625 states and 9206 transitions. Second operand has 7 states, 7 states have (on average 57.142857142857146) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:35,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:35,085 INFO L93 Difference]: Finished difference Result 8781 states and 17401 transitions. [2024-11-09 19:45:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:45:35,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 57.142857142857146) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 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 526 [2024-11-09 19:45:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:35,097 INFO L225 Difference]: With dead ends: 8781 [2024-11-09 19:45:35,097 INFO L226 Difference]: Without dead ends: 4295 [2024-11-09 19:45:35,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:45:35,105 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 553 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:35,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 308 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:45:35,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4295 states. [2024-11-09 19:45:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4295 to 4295. [2024-11-09 19:45:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4294 states have (on average 1.8700512342803912) internal successors, (8030), 4294 states have internal predecessors, (8030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 8030 transitions. [2024-11-09 19:45:35,158 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 8030 transitions. Word has length 526 [2024-11-09 19:45:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:35,158 INFO L471 AbstractCegarLoop]: Abstraction has 4295 states and 8030 transitions. [2024-11-09 19:45:35,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 57.142857142857146) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 8030 transitions. [2024-11-09 19:45:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2024-11-09 19:45:35,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:35,165 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:35,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:45:35,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:35,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1882114928, now seen corresponding path program 1 times [2024-11-09 19:45:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361312028] [2024-11-09 19:45:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 19:45:35,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:35,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361312028] [2024-11-09 19:45:35,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361312028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:35,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:35,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422534625] [2024-11-09 19:45:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:35,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:35,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:35,497 INFO L87 Difference]: Start difference. First operand 4295 states and 8030 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:36,838 INFO L93 Difference]: Finished difference Result 10568 states and 19858 transitions. [2024-11-09 19:45:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:36,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 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 554 [2024-11-09 19:45:36,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:36,849 INFO L225 Difference]: With dead ends: 10568 [2024-11-09 19:45:36,850 INFO L226 Difference]: Without dead ends: 6605 [2024-11-09 19:45:36,852 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 [2024-11-09 19:45:36,853 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 481 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:36,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 701 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:45:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2024-11-09 19:45:36,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6275. [2024-11-09 19:45:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6275 states, 6274 states have (on average 1.8532036978004462) internal successors, (11627), 6274 states have internal predecessors, (11627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 11627 transitions. [2024-11-09 19:45:36,950 INFO L78 Accepts]: Start accepts. Automaton has 6275 states and 11627 transitions. Word has length 554 [2024-11-09 19:45:36,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:36,951 INFO L471 AbstractCegarLoop]: Abstraction has 6275 states and 11627 transitions. [2024-11-09 19:45:36,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:36,952 INFO L276 IsEmpty]: Start isEmpty. Operand 6275 states and 11627 transitions. [2024-11-09 19:45:36,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-11-09 19:45:36,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:36,967 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:36,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:45:36,967 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:36,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash 396091850, now seen corresponding path program 1 times [2024-11-09 19:45:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409228101] [2024-11-09 19:45:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:36,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-09 19:45:37,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:37,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409228101] [2024-11-09 19:45:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409228101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:37,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:37,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81599370] [2024-11-09 19:45:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:37,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:37,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:37,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:37,323 INFO L87 Difference]: Start difference. First operand 6275 states and 11627 transitions. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:38,469 INFO L93 Difference]: Finished difference Result 14198 states and 26435 transitions. [2024-11-09 19:45:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 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 658 [2024-11-09 19:45:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:38,495 INFO L225 Difference]: With dead ends: 14198 [2024-11-09 19:45:38,495 INFO L226 Difference]: Without dead ends: 8255 [2024-11-09 19:45:38,500 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 [2024-11-09 19:45:38,502 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 441 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:38,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 684 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:38,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8255 states. [2024-11-09 19:45:38,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8255 to 8255. [2024-11-09 19:45:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8255 states, 8254 states have (on average 1.8477102011146112) internal successors, (15251), 8254 states have internal predecessors, (15251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8255 states to 8255 states and 15251 transitions. [2024-11-09 19:45:38,588 INFO L78 Accepts]: Start accepts. Automaton has 8255 states and 15251 transitions. Word has length 658 [2024-11-09 19:45:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:38,588 INFO L471 AbstractCegarLoop]: Abstraction has 8255 states and 15251 transitions. [2024-11-09 19:45:38,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 8255 states and 15251 transitions. [2024-11-09 19:45:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2024-11-09 19:45:38,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:38,600 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:38,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:45:38,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:38,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1270381120, now seen corresponding path program 1 times [2024-11-09 19:45:38,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:38,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441506394] [2024-11-09 19:45:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:38,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 776 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-09 19:45:39,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:39,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441506394] [2024-11-09 19:45:39,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441506394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:39,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717685675] [2024-11-09 19:45:39,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:39,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:39,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:39,088 INFO L87 Difference]: Start difference. First operand 8255 states and 15251 transitions. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:40,142 INFO L93 Difference]: Finished difference Result 18488 states and 34300 transitions. [2024-11-09 19:45:40,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:40,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 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 819 [2024-11-09 19:45:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:40,159 INFO L225 Difference]: With dead ends: 18488 [2024-11-09 19:45:40,159 INFO L226 Difference]: Without dead ends: 10565 [2024-11-09 19:45:40,166 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 [2024-11-09 19:45:40,167 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 454 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:40,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 709 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:45:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2024-11-09 19:45:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 9905. [2024-11-09 19:45:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.8444063004846527) internal successors, (18267), 9904 states have internal predecessors, (18267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:40,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 18267 transitions. [2024-11-09 19:45:40,261 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 18267 transitions. Word has length 819 [2024-11-09 19:45:40,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:40,262 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 18267 transitions. [2024-11-09 19:45:40,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:40,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 18267 transitions. [2024-11-09 19:45:40,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-11-09 19:45:40,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:40,271 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:40,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:45:40,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:40,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -322613384, now seen corresponding path program 1 times [2024-11-09 19:45:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:40,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595529178] [2024-11-09 19:45:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 27 proven. 559 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-09 19:45:41,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:41,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595529178] [2024-11-09 19:45:41,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595529178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:45:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955142542] [2024-11-09 19:45:41,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:41,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:41,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:41,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:45:41,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:45:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:41,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:45:41,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:45:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2024-11-09 19:45:41,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:45:41,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955142542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:41,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:45:41,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-09 19:45:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113989609] [2024-11-09 19:45:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:41,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:41,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:41,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:41,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:45:41,712 INFO L87 Difference]: Start difference. First operand 9905 states and 18267 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:42,949 INFO L93 Difference]: Finished difference Result 19478 states and 35938 transitions. [2024-11-09 19:45:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:42,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 827 [2024-11-09 19:45:42,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:42,963 INFO L225 Difference]: With dead ends: 19478 [2024-11-09 19:45:42,963 INFO L226 Difference]: Without dead ends: 9905 [2024-11-09 19:45:42,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:45:42,972 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 619 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:42,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 644 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:45:42,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2024-11-09 19:45:43,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 9905. [2024-11-09 19:45:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9905 states, 9904 states have (on average 1.8387520193861067) internal successors, (18211), 9904 states have internal predecessors, (18211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9905 states to 9905 states and 18211 transitions. [2024-11-09 19:45:43,058 INFO L78 Accepts]: Start accepts. Automaton has 9905 states and 18211 transitions. Word has length 827 [2024-11-09 19:45:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:43,059 INFO L471 AbstractCegarLoop]: Abstraction has 9905 states and 18211 transitions. [2024-11-09 19:45:43,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9905 states and 18211 transitions. [2024-11-09 19:45:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2024-11-09 19:45:43,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:43,071 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:43,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 19:45:43,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 19:45:43,272 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:43,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:43,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1768919284, now seen corresponding path program 1 times [2024-11-09 19:45:43,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:43,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578201935] [2024-11-09 19:45:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:43,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-11-09 19:45:43,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:43,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578201935] [2024-11-09 19:45:43,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578201935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:43,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:43,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:43,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396157153] [2024-11-09 19:45:43,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:43,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:43,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:43,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:43,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:43,694 INFO L87 Difference]: Start difference. First operand 9905 states and 18211 transitions. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:44,856 INFO L93 Difference]: Finished difference Result 24428 states and 44996 transitions. [2024-11-09 19:45:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:44,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 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 844 [2024-11-09 19:45:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:44,889 INFO L225 Difference]: With dead ends: 24428 [2024-11-09 19:45:44,889 INFO L226 Difference]: Without dead ends: 13865 [2024-11-09 19:45:44,909 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 [2024-11-09 19:45:44,913 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 533 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:44,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 695 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2024-11-09 19:45:45,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 13205. [2024-11-09 19:45:45,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13205 states, 13204 states have (on average 1.8312632535595275) internal successors, (24180), 13204 states have internal predecessors, (24180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13205 states to 13205 states and 24180 transitions. [2024-11-09 19:45:45,272 INFO L78 Accepts]: Start accepts. Automaton has 13205 states and 24180 transitions. Word has length 844 [2024-11-09 19:45:45,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:45,273 INFO L471 AbstractCegarLoop]: Abstraction has 13205 states and 24180 transitions. [2024-11-09 19:45:45,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:45,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13205 states and 24180 transitions. [2024-11-09 19:45:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2024-11-09 19:45:45,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:45,289 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:45,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:45:45,289 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:45,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:45,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1521126576, now seen corresponding path program 1 times [2024-11-09 19:45:45,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:45,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212525336] [2024-11-09 19:45:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:45,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 1649 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-09 19:45:45,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:45,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212525336] [2024-11-09 19:45:45,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212525336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:45,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:45,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940240508] [2024-11-09 19:45:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:45,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:45,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:45,769 INFO L87 Difference]: Start difference. First operand 13205 states and 24180 transitions. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:46,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:46,904 INFO L93 Difference]: Finished difference Result 26408 states and 48357 transitions. [2024-11-09 19:45:46,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:46,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 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 1103 [2024-11-09 19:45:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:46,920 INFO L225 Difference]: With dead ends: 26408 [2024-11-09 19:45:46,920 INFO L226 Difference]: Without dead ends: 13205 [2024-11-09 19:45:46,932 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 [2024-11-09 19:45:46,933 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 482 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:46,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 699 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13205 states. [2024-11-09 19:45:47,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13205 to 12545. [2024-11-09 19:45:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12545 states, 12544 states have (on average 1.8165656887755102) internal successors, (22787), 12544 states have internal predecessors, (22787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:47,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12545 states to 12545 states and 22787 transitions. [2024-11-09 19:45:47,062 INFO L78 Accepts]: Start accepts. Automaton has 12545 states and 22787 transitions. Word has length 1103 [2024-11-09 19:45:47,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:47,063 INFO L471 AbstractCegarLoop]: Abstraction has 12545 states and 22787 transitions. [2024-11-09 19:45:47,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:47,063 INFO L276 IsEmpty]: Start isEmpty. Operand 12545 states and 22787 transitions. [2024-11-09 19:45:47,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2024-11-09 19:45:47,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:47,082 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:47,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:45:47,082 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:47,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:47,083 INFO L85 PathProgramCache]: Analyzing trace with hash -104843832, now seen corresponding path program 1 times [2024-11-09 19:45:47,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:47,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611947181] [2024-11-09 19:45:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:47,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2301 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 1828 trivial. 0 not checked. [2024-11-09 19:45:47,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:47,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611947181] [2024-11-09 19:45:47,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611947181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:47,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:47,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:47,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471347704] [2024-11-09 19:45:47,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:47,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:47,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:47,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:47,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:47,736 INFO L87 Difference]: Start difference. First operand 12545 states and 22787 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:48,980 INFO L93 Difference]: Finished difference Result 27398 states and 49808 transitions. [2024-11-09 19:45:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 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 1104 [2024-11-09 19:45:48,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:48,998 INFO L225 Difference]: With dead ends: 27398 [2024-11-09 19:45:48,999 INFO L226 Difference]: Without dead ends: 13535 [2024-11-09 19:45:49,009 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 [2024-11-09 19:45:49,009 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 535 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:49,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 681 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:49,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13535 states. [2024-11-09 19:45:49,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13535 to 12215. [2024-11-09 19:45:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12215 states, 12214 states have (on average 1.8140658261011953) internal successors, (22157), 12214 states have internal predecessors, (22157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12215 states to 12215 states and 22157 transitions. [2024-11-09 19:45:49,175 INFO L78 Accepts]: Start accepts. Automaton has 12215 states and 22157 transitions. Word has length 1104 [2024-11-09 19:45:49,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:49,176 INFO L471 AbstractCegarLoop]: Abstraction has 12215 states and 22157 transitions. [2024-11-09 19:45:49,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:49,176 INFO L276 IsEmpty]: Start isEmpty. Operand 12215 states and 22157 transitions. [2024-11-09 19:45:49,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1361 [2024-11-09 19:45:49,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:49,192 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:49,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:45:49,193 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:49,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:49,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1066472202, now seen corresponding path program 1 times [2024-11-09 19:45:49,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:49,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634059057] [2024-11-09 19:45:49,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:49,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 2286 proven. 0 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked. [2024-11-09 19:45:50,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:50,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634059057] [2024-11-09 19:45:50,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634059057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:50,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:50,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:50,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362655278] [2024-11-09 19:45:50,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:50,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:50,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:50,246 INFO L87 Difference]: Start difference. First operand 12215 states and 22157 transitions. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:51,361 INFO L93 Difference]: Finished difference Result 24758 states and 44913 transitions. [2024-11-09 19:45:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:51,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 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 1360 [2024-11-09 19:45:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:51,376 INFO L225 Difference]: With dead ends: 24758 [2024-11-09 19:45:51,377 INFO L226 Difference]: Without dead ends: 12875 [2024-11-09 19:45:51,386 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 [2024-11-09 19:45:51,387 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 486 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:51,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 700 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:45:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2024-11-09 19:45:51,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 12875. [2024-11-09 19:45:51,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 12874 states have (on average 1.813422401739941) internal successors, (23346), 12874 states have internal predecessors, (23346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:51,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 23346 transitions. [2024-11-09 19:45:51,501 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 23346 transitions. Word has length 1360 [2024-11-09 19:45:51,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:51,501 INFO L471 AbstractCegarLoop]: Abstraction has 12875 states and 23346 transitions. [2024-11-09 19:45:51,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 23346 transitions. [2024-11-09 19:45:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1415 [2024-11-09 19:45:51,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:51,520 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:51,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:45:51,521 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:51,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1066844400, now seen corresponding path program 1 times [2024-11-09 19:45:51,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:51,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142847639] [2024-11-09 19:45:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:51,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3773 backedges. 1015 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2024-11-09 19:45:52,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:52,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142847639] [2024-11-09 19:45:52,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142847639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:52,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:52,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:45:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019260368] [2024-11-09 19:45:52,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:52,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:45:52,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:52,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:45:52,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:45:52,180 INFO L87 Difference]: Start difference. First operand 12875 states and 23346 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:53,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:53,356 INFO L93 Difference]: Finished difference Result 26408 states and 47885 transitions. [2024-11-09 19:45:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:45:53,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 1414 [2024-11-09 19:45:53,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:53,369 INFO L225 Difference]: With dead ends: 26408 [2024-11-09 19:45:53,369 INFO L226 Difference]: Without dead ends: 12545 [2024-11-09 19:45:53,380 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 [2024-11-09 19:45:53,381 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 430 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:53,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 684 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:53,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12545 states. [2024-11-09 19:45:53,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12545 to 12545. [2024-11-09 19:45:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12545 states, 12544 states have (on average 1.809390943877551) internal successors, (22697), 12544 states have internal predecessors, (22697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12545 states to 12545 states and 22697 transitions. [2024-11-09 19:45:53,575 INFO L78 Accepts]: Start accepts. Automaton has 12545 states and 22697 transitions. Word has length 1414 [2024-11-09 19:45:53,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:53,576 INFO L471 AbstractCegarLoop]: Abstraction has 12545 states and 22697 transitions. [2024-11-09 19:45:53,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:53,580 INFO L276 IsEmpty]: Start isEmpty. Operand 12545 states and 22697 transitions. [2024-11-09 19:45:53,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1600 [2024-11-09 19:45:53,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:53,600 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:53,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:45:53,600 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:53,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1143974879, now seen corresponding path program 1 times [2024-11-09 19:45:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:53,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828098744] [2024-11-09 19:45:53,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:53,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3910 backedges. 2870 proven. 0 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2024-11-09 19:45:55,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:55,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828098744] [2024-11-09 19:45:55,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828098744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:45:55,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:45:55,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:45:55,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099741358] [2024-11-09 19:45:55,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:45:55,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:45:55,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:45:55,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:45:55,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:45:55,493 INFO L87 Difference]: Start difference. First operand 12545 states and 22697 transitions. Second operand has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:56,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:45:56,715 INFO L93 Difference]: Finished difference Result 24769 states and 44809 transitions. [2024-11-09 19:45:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 19:45:56,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 0 states have call successors, (0), 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 1599 [2024-11-09 19:45:56,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:45:56,728 INFO L225 Difference]: With dead ends: 24769 [2024-11-09 19:45:56,728 INFO L226 Difference]: Without dead ends: 12556 [2024-11-09 19:45:56,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:45:56,737 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 479 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:45:56,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 702 Invalid, 2375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:45:56,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12556 states. [2024-11-09 19:45:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12556 to 12545. [2024-11-09 19:45:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12545 states, 12544 states have (on average 1.809231505102041) internal successors, (22695), 12544 states have internal predecessors, (22695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12545 states to 12545 states and 22695 transitions. [2024-11-09 19:45:56,840 INFO L78 Accepts]: Start accepts. Automaton has 12545 states and 22695 transitions. Word has length 1599 [2024-11-09 19:45:56,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:45:56,841 INFO L471 AbstractCegarLoop]: Abstraction has 12545 states and 22695 transitions. [2024-11-09 19:45:56,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:45:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 12545 states and 22695 transitions. [2024-11-09 19:45:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1774 [2024-11-09 19:45:56,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:45:56,860 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:45:56,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:45:56,861 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:45:56,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:45:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash 886953420, now seen corresponding path program 1 times [2024-11-09 19:45:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:45:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159491434] [2024-11-09 19:45:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:56,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:45:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 4235 proven. 6 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2024-11-09 19:45:58,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:45:58,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159491434] [2024-11-09 19:45:58,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159491434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:45:58,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741499366] [2024-11-09 19:45:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:45:58,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:45:58,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:45:58,904 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:45:58,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:45:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:45:59,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 2032 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 19:45:59,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:46:01,330 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 2380 proven. 201 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2024-11-09 19:46:01,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:46:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 2380 proven. 201 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2024-11-09 19:46:04,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741499366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:46:04,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:46:04,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2024-11-09 19:46:04,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484611678] [2024-11-09 19:46:04,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:46:04,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 19:46:04,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:04,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 19:46:04,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 19:46:04,902 INFO L87 Difference]: Start difference. First operand 12545 states and 22695 transitions. Second operand has 10 states, 10 states have (on average 226.4) internal successors, (2264), 10 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:11,305 INFO L93 Difference]: Finished difference Result 25748 states and 46591 transitions. [2024-11-09 19:46:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 19:46:11,305 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 226.4) internal successors, (2264), 10 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1773 [2024-11-09 19:46:11,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:11,318 INFO L225 Difference]: With dead ends: 25748 [2024-11-09 19:46:11,319 INFO L226 Difference]: Without dead ends: 13535 [2024-11-09 19:46:11,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3556 GetRequests, 3545 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-09 19:46:11,327 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 2968 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 14576 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 14744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 14576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:11,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2968 Valid, 137 Invalid, 14744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 14576 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-09 19:46:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13535 states. [2024-11-09 19:46:11,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13535 to 13205. [2024-11-09 19:46:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13205 states, 13204 states have (on average 1.808542865798243) internal successors, (23880), 13204 states have internal predecessors, (23880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:11,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13205 states to 13205 states and 23880 transitions. [2024-11-09 19:46:11,447 INFO L78 Accepts]: Start accepts. Automaton has 13205 states and 23880 transitions. Word has length 1773 [2024-11-09 19:46:11,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:11,447 INFO L471 AbstractCegarLoop]: Abstraction has 13205 states and 23880 transitions. [2024-11-09 19:46:11,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 226.4) internal successors, (2264), 10 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 13205 states and 23880 transitions. [2024-11-09 19:46:11,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1844 [2024-11-09 19:46:11,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:11,471 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:46:11,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:46:11,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 19:46:11,672 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:11,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:11,674 INFO L85 PathProgramCache]: Analyzing trace with hash -38425383, now seen corresponding path program 1 times [2024-11-09 19:46:11,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:11,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594434249] [2024-11-09 19:46:11,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:11,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6173 backedges. 2547 proven. 0 refuted. 0 times theorem prover too weak. 3626 trivial. 0 not checked. [2024-11-09 19:46:13,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:13,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594434249] [2024-11-09 19:46:13,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594434249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:13,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:46:13,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:46:13,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371692275] [2024-11-09 19:46:13,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:13,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:46:13,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:13,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:46:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:46:13,313 INFO L87 Difference]: Start difference. First operand 13205 states and 23880 transitions. Second operand has 4 states, 4 states have (on average 180.5) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:14,880 INFO L93 Difference]: Finished difference Result 26408 states and 47761 transitions. [2024-11-09 19:46:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:46:14,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 180.5) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 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 1843 [2024-11-09 19:46:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:14,894 INFO L225 Difference]: With dead ends: 26408 [2024-11-09 19:46:14,894 INFO L226 Difference]: Without dead ends: 13535 [2024-11-09 19:46:14,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:46:14,902 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 792 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:14,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 110 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:46:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13535 states. [2024-11-09 19:46:14,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13535 to 13535. [2024-11-09 19:46:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13535 states, 13534 states have (on average 1.8083345647997635) internal successors, (24474), 13534 states have internal predecessors, (24474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:15,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13535 states to 13535 states and 24474 transitions. [2024-11-09 19:46:15,013 INFO L78 Accepts]: Start accepts. Automaton has 13535 states and 24474 transitions. Word has length 1843 [2024-11-09 19:46:15,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:15,014 INFO L471 AbstractCegarLoop]: Abstraction has 13535 states and 24474 transitions. [2024-11-09 19:46:15,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.5) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:15,014 INFO L276 IsEmpty]: Start isEmpty. Operand 13535 states and 24474 transitions. [2024-11-09 19:46:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1907 [2024-11-09 19:46:15,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:15,051 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:46:15,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:46:15,051 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:15,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:15,052 INFO L85 PathProgramCache]: Analyzing trace with hash -94339383, now seen corresponding path program 1 times [2024-11-09 19:46:15,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:15,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248368155] [2024-11-09 19:46:15,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:15,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6478 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 6389 trivial. 0 not checked. [2024-11-09 19:46:16,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:16,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248368155] [2024-11-09 19:46:16,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248368155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:16,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:46:16,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:46:16,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708627489] [2024-11-09 19:46:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:16,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:46:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:16,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:46:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:46:16,195 INFO L87 Difference]: Start difference. First operand 13535 states and 24474 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:17,292 INFO L93 Difference]: Finished difference Result 29378 states and 53140 transitions. [2024-11-09 19:46:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:46:17,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 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 1906 [2024-11-09 19:46:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:17,310 INFO L225 Difference]: With dead ends: 29378 [2024-11-09 19:46:17,311 INFO L226 Difference]: Without dead ends: 16175 [2024-11-09 19:46:17,320 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 [2024-11-09 19:46:17,321 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 588 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:17,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 56 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:46:17,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2024-11-09 19:46:17,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 12875. [2024-11-09 19:46:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 12874 states have (on average 1.8084511418362592) internal successors, (23282), 12874 states have internal predecessors, (23282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 23282 transitions. [2024-11-09 19:46:17,460 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 23282 transitions. Word has length 1906 [2024-11-09 19:46:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:17,461 INFO L471 AbstractCegarLoop]: Abstraction has 12875 states and 23282 transitions. [2024-11-09 19:46:17,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:17,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 23282 transitions. [2024-11-09 19:46:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1927 [2024-11-09 19:46:17,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:17,491 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:46:17,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 19:46:17,491 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:17,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash -734507808, now seen corresponding path program 1 times [2024-11-09 19:46:17,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:17,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242934959] [2024-11-09 19:46:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:17,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6485 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 6396 trivial. 0 not checked. [2024-11-09 19:46:18,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242934959] [2024-11-09 19:46:18,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242934959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:18,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:46:18,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:46:18,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725478135] [2024-11-09 19:46:18,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:18,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:46:18,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:18,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:46:18,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:46:18,526 INFO L87 Difference]: Start difference. First operand 12875 states and 23282 transitions. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:19,656 INFO L93 Difference]: Finished difference Result 28718 states and 51941 transitions. [2024-11-09 19:46:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:46:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 1926 [2024-11-09 19:46:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:19,673 INFO L225 Difference]: With dead ends: 28718 [2024-11-09 19:46:19,673 INFO L226 Difference]: Without dead ends: 16175 [2024-11-09 19:46:19,681 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 [2024-11-09 19:46:19,682 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 589 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:19,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 46 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:46:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2024-11-09 19:46:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 13865. [2024-11-09 19:46:19,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13865 states, 13864 states have (on average 1.8089296018465089) internal successors, (25079), 13864 states have internal predecessors, (25079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13865 states to 13865 states and 25079 transitions. [2024-11-09 19:46:19,793 INFO L78 Accepts]: Start accepts. Automaton has 13865 states and 25079 transitions. Word has length 1926 [2024-11-09 19:46:19,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:19,795 INFO L471 AbstractCegarLoop]: Abstraction has 13865 states and 25079 transitions. [2024-11-09 19:46:19,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:19,795 INFO L276 IsEmpty]: Start isEmpty. Operand 13865 states and 25079 transitions. [2024-11-09 19:46:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2265 [2024-11-09 19:46:19,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:19,826 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:46:19,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 19:46:19,826 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:19,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1257336408, now seen corresponding path program 1 times [2024-11-09 19:46:19,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:19,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132750887] [2024-11-09 19:46:19,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:19,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9634 backedges. 3873 proven. 2830 refuted. 0 times theorem prover too weak. 2931 trivial. 0 not checked. [2024-11-09 19:46:24,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132750887] [2024-11-09 19:46:24,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132750887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:46:24,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902785986] [2024-11-09 19:46:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:24,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:46:24,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:46:24,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:46:24,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:46:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:24,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:46:24,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:46:25,019 INFO L134 CoverageAnalysis]: Checked inductivity of 9634 backedges. 6032 proven. 0 refuted. 0 times theorem prover too weak. 3602 trivial. 0 not checked. [2024-11-09 19:46:25,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:46:25,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902785986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:25,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:46:25,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-09 19:46:25,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873919804] [2024-11-09 19:46:25,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:25,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:46:25,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:25,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:46:25,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:46:25,022 INFO L87 Difference]: Start difference. First operand 13865 states and 25079 transitions. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:26,168 INFO L93 Difference]: Finished difference Result 27068 states and 48968 transitions. [2024-11-09 19:46:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:46:26,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 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 2264 [2024-11-09 19:46:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:26,181 INFO L225 Difference]: With dead ends: 27068 [2024-11-09 19:46:26,181 INFO L226 Difference]: Without dead ends: 13865 [2024-11-09 19:46:26,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2272 GetRequests, 2265 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:46:26,187 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 382 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:26,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 685 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:46:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13865 states. [2024-11-09 19:46:26,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13865 to 13865. [2024-11-09 19:46:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13865 states, 13864 states have (on average 1.8087132140796307) internal successors, (25076), 13864 states have internal predecessors, (25076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13865 states to 13865 states and 25076 transitions. [2024-11-09 19:46:26,297 INFO L78 Accepts]: Start accepts. Automaton has 13865 states and 25076 transitions. Word has length 2264 [2024-11-09 19:46:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:26,298 INFO L471 AbstractCegarLoop]: Abstraction has 13865 states and 25076 transitions. [2024-11-09 19:46:26,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13865 states and 25076 transitions. [2024-11-09 19:46:26,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2286 [2024-11-09 19:46:26,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:26,327 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:46:26,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:46:26,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:46:26,528 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:26,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash -4015998, now seen corresponding path program 1 times [2024-11-09 19:46:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:26,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676047984] [2024-11-09 19:46:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:26,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9412 backedges. 4315 proven. 0 refuted. 0 times theorem prover too weak. 5097 trivial. 0 not checked. [2024-11-09 19:46:28,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:28,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676047984] [2024-11-09 19:46:28,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676047984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:28,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:46:28,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:46:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275855471] [2024-11-09 19:46:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:28,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:46:28,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:28,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:46:28,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:46:28,684 INFO L87 Difference]: Start difference. First operand 13865 states and 25076 transitions. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:29,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:29,869 INFO L93 Difference]: Finished difference Result 28718 states and 51948 transitions. [2024-11-09 19:46:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:46:29,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 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 2285 [2024-11-09 19:46:29,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:29,885 INFO L225 Difference]: With dead ends: 28718 [2024-11-09 19:46:29,885 INFO L226 Difference]: Without dead ends: 15515 [2024-11-09 19:46:29,894 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 [2024-11-09 19:46:29,894 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 469 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:29,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 54 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:46:29,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15515 states. [2024-11-09 19:46:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15515 to 13865. [2024-11-09 19:46:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13865 states, 13864 states have (on average 1.8082804385458742) internal successors, (25070), 13864 states have internal predecessors, (25070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:30,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13865 states to 13865 states and 25070 transitions. [2024-11-09 19:46:30,014 INFO L78 Accepts]: Start accepts. Automaton has 13865 states and 25070 transitions. Word has length 2285 [2024-11-09 19:46:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:30,014 INFO L471 AbstractCegarLoop]: Abstraction has 13865 states and 25070 transitions. [2024-11-09 19:46:30,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand 13865 states and 25070 transitions. [2024-11-09 19:46:30,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2328 [2024-11-09 19:46:30,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:30,043 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:46:30,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 19:46:30,044 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:30,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:30,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1750686616, now seen corresponding path program 1 times [2024-11-09 19:46:30,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:30,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760983427] [2024-11-09 19:46:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:30,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:32,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10201 backedges. 7148 proven. 140 refuted. 0 times theorem prover too weak. 2913 trivial. 0 not checked. [2024-11-09 19:46:32,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:32,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760983427] [2024-11-09 19:46:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760983427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:46:32,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151062653] [2024-11-09 19:46:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:32,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:46:32,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:46:32,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:46:32,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:46:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:33,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 2673 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:46:33,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:46:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10201 backedges. 5653 proven. 0 refuted. 0 times theorem prover too weak. 4548 trivial. 0 not checked. [2024-11-09 19:46:33,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:46:33,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151062653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:33,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:46:33,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:46:33,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551060516] [2024-11-09 19:46:33,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:33,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:46:33,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:33,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:46:33,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:46:33,336 INFO L87 Difference]: Start difference. First operand 13865 states and 25070 transitions. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:34,499 INFO L93 Difference]: Finished difference Result 29378 states and 53131 transitions. [2024-11-09 19:46:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:46:34,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 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 2327 [2024-11-09 19:46:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:34,520 INFO L225 Difference]: With dead ends: 29378 [2024-11-09 19:46:34,520 INFO L226 Difference]: Without dead ends: 16175 [2024-11-09 19:46:34,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2332 GetRequests, 2327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:46:34,531 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 486 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:34,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 680 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:46:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2024-11-09 19:46:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 15515. [2024-11-09 19:46:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15515 states, 15514 states have (on average 1.8070774784066004) internal successors, (28035), 15514 states have internal predecessors, (28035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15515 states to 15515 states and 28035 transitions. [2024-11-09 19:46:34,668 INFO L78 Accepts]: Start accepts. Automaton has 15515 states and 28035 transitions. Word has length 2327 [2024-11-09 19:46:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:34,669 INFO L471 AbstractCegarLoop]: Abstraction has 15515 states and 28035 transitions. [2024-11-09 19:46:34,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:34,669 INFO L276 IsEmpty]: Start isEmpty. Operand 15515 states and 28035 transitions. [2024-11-09 19:46:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2359 [2024-11-09 19:46:34,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:34,793 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:46:34,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 19:46:34,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:46:34,995 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:34,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:34,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1341786184, now seen corresponding path program 1 times [2024-11-09 19:46:34,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:34,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639247923] [2024-11-09 19:46:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:34,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 7794 proven. 78 refuted. 0 times theorem prover too weak. 2800 trivial. 0 not checked. [2024-11-09 19:46:38,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639247923] [2024-11-09 19:46:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639247923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:46:38,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246317095] [2024-11-09 19:46:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:38,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:46:38,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:46:38,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:46:38,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 19:46:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:38,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:46:38,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:46:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 6016 proven. 0 refuted. 0 times theorem prover too weak. 4656 trivial. 0 not checked. [2024-11-09 19:46:39,317 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:46:39,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246317095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:46:39,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:46:39,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:46:39,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654587517] [2024-11-09 19:46:39,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:46:39,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:46:39,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:46:39,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:46:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:46:39,320 INFO L87 Difference]: Start difference. First operand 15515 states and 28035 transitions. Second operand has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:46:40,424 INFO L93 Difference]: Finished difference Result 32678 states and 59049 transitions. [2024-11-09 19:46:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:46:40,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 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 2358 [2024-11-09 19:46:40,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:46:40,442 INFO L225 Difference]: With dead ends: 32678 [2024-11-09 19:46:40,442 INFO L226 Difference]: Without dead ends: 17825 [2024-11-09 19:46:40,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2363 GetRequests, 2358 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:46:40,452 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 515 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:46:40,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 684 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:46:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17825 states. [2024-11-09 19:46:40,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17825 to 17165. [2024-11-09 19:46:40,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17165 states, 17164 states have (on average 1.8065136331857377) internal successors, (31007), 17164 states have internal predecessors, (31007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:40,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17165 states to 17165 states and 31007 transitions. [2024-11-09 19:46:40,599 INFO L78 Accepts]: Start accepts. Automaton has 17165 states and 31007 transitions. Word has length 2358 [2024-11-09 19:46:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:46:40,599 INFO L471 AbstractCegarLoop]: Abstraction has 17165 states and 31007 transitions. [2024-11-09 19:46:40,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:46:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 17165 states and 31007 transitions. [2024-11-09 19:46:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2451 [2024-11-09 19:46:40,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:46:40,688 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:46:40,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 19:46:40,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-09 19:46:40,893 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:46:40,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:46:40,894 INFO L85 PathProgramCache]: Analyzing trace with hash 173819280, now seen corresponding path program 1 times [2024-11-09 19:46:40,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:46:40,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559136501] [2024-11-09 19:46:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:40,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:46:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10834 backedges. 7704 proven. 140 refuted. 0 times theorem prover too weak. 2990 trivial. 0 not checked. [2024-11-09 19:46:43,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:46:43,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559136501] [2024-11-09 19:46:43,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559136501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:46:43,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793443749] [2024-11-09 19:46:43,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:46:43,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:46:43,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:46:43,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:46:43,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 19:46:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:46:44,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 2775 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 19:46:44,244 INFO L278 TraceCheckSpWp]: Computing forward predicates...