./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label54.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 4c52ec07a463523a7400028d070720f187a378d4cbca4c6c694254a0e1ef7e72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:10:59,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:10:59,911 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:10:59,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:10:59,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:10:59,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:10:59,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:10:59,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:10:59,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:10:59,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:10:59,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:10:59,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:10:59,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:10:59,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:10:59,944 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:10:59,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:10:59,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:10:59,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:10:59,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:10:59,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:10:59,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:10:59,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:10:59,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:10:59,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:10:59,949 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:10:59,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:10:59,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:10:59,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:10:59,949 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:10:59,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:10:59,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:10:59,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:10:59,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:10:59,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:10:59,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:10:59,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:10:59,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:10:59,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:10:59,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:10:59,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:10:59,951 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:10:59,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:10:59,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c52ec07a463523a7400028d070720f187a378d4cbca4c6c694254a0e1ef7e72 [2024-11-16 04:11:00,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:11:00,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:11:00,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:11:00,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:11:00,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:11:00,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label54.c [2024-11-16 04:11:01,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:11:01,886 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:11:01,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label54.c [2024-11-16 04:11:01,904 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354c1d534/70b69900033c46a8a4b06b3e0ba8a8e9/FLAG4f0c61b30 [2024-11-16 04:11:02,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354c1d534/70b69900033c46a8a4b06b3e0ba8a8e9 [2024-11-16 04:11:02,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:11:02,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:11:02,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:11:02,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:11:02,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:11:02,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:02,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f634b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02, skipping insertion in model container [2024-11-16 04:11:02,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:02,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:11:02,353 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/Problem15_label54.c[4982,4995] [2024-11-16 04:11:02,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:11:02,768 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:11:02,789 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/Problem15_label54.c[4982,4995] [2024-11-16 04:11:02,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:11:02,927 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:11:02,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02 WrapperNode [2024-11-16 04:11:02,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:11:02,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:11:02,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:11:02,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:11:02,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:02,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,146 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-16 04:11:03,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:11:03,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:11:03,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:11:03,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:11:03,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,228 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:11:03,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,290 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:11:03,341 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:11:03,341 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:11:03,341 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:11:03,342 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (1/1) ... [2024-11-16 04:11:03,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:11:03,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:03,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:11:03,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:11:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:11:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:11:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:11:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:11:03,532 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:11:03,538 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:11:05,357 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-16 04:11:05,408 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-16 04:11:05,409 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:11:05,423 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:11:05,423 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:11:05,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:11:05 BoogieIcfgContainer [2024-11-16 04:11:05,423 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:11:05,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:11:05,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:11:05,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:11:05,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:11:02" (1/3) ... [2024-11-16 04:11:05,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2430f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:11:05, skipping insertion in model container [2024-11-16 04:11:05,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:11:02" (2/3) ... [2024-11-16 04:11:05,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f2430f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:11:05, skipping insertion in model container [2024-11-16 04:11:05,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:11:05" (3/3) ... [2024-11-16 04:11:05,429 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label54.c [2024-11-16 04:11:05,440 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:11:05,440 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:11:05,483 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:11:05,488 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;@70dcd30a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:11:05,488 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:11:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-16 04:11:05,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:05,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:05,498 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:05,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash 638748389, now seen corresponding path program 1 times [2024-11-16 04:11:05,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:05,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016687658] [2024-11-16 04:11:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:05,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:05,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:05,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:05,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016687658] [2024-11-16 04:11:05,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016687658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:05,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:05,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733437047] [2024-11-16 04:11:05,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:05,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:05,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:05,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:05,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:05,775 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 1.771764705882353) internal successors, (753), 426 states have internal predecessors, (753), 0 states have call successors, (0), 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 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:07,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:07,608 INFO L93 Difference]: Finished difference Result 1197 states and 2163 transitions. [2024-11-16 04:11:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:07,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-16 04:11:07,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:07,625 INFO L225 Difference]: With dead ends: 1197 [2024-11-16 04:11:07,625 INFO L226 Difference]: Without dead ends: 691 [2024-11-16 04:11:07,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:07,631 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 331 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:07,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 233 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 04:11:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2024-11-16 04:11:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 683. [2024-11-16 04:11:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 682 states have (on average 1.6070381231671553) internal successors, (1096), 682 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1096 transitions. [2024-11-16 04:11:07,718 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1096 transitions. Word has length 42 [2024-11-16 04:11:07,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:07,719 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 1096 transitions. [2024-11-16 04:11:07,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1096 transitions. [2024-11-16 04:11:07,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 04:11:07,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:07,726 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:11:07,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:11:07,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:07,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash -802470688, now seen corresponding path program 1 times [2024-11-16 04:11:07,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:07,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102422368] [2024-11-16 04:11:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:07,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:07,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:07,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102422368] [2024-11-16 04:11:07,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102422368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:07,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:07,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:07,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465608385] [2024-11-16 04:11:07,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:07,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:07,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:07,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:07,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:07,911 INFO L87 Difference]: Start difference. First operand 683 states and 1096 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:09,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:09,210 INFO L93 Difference]: Finished difference Result 1973 states and 3180 transitions. [2024-11-16 04:11:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:09,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-11-16 04:11:09,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:09,215 INFO L225 Difference]: With dead ends: 1973 [2024-11-16 04:11:09,215 INFO L226 Difference]: Without dead ends: 1292 [2024-11-16 04:11:09,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:09,217 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 283 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:09,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 366 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:11:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-16 04:11:09,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1286. [2024-11-16 04:11:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 1.3937743190661478) internal successors, (1791), 1285 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:09,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1791 transitions. [2024-11-16 04:11:09,269 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1791 transitions. Word has length 111 [2024-11-16 04:11:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:09,273 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1791 transitions. [2024-11-16 04:11:09,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1791 transitions. [2024-11-16 04:11:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 04:11:09,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:09,276 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:11:09,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:11:09,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:09,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:09,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2118509644, now seen corresponding path program 1 times [2024-11-16 04:11:09,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:09,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886559386] [2024-11-16 04:11:09,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:09,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:09,593 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:09,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886559386] [2024-11-16 04:11:09,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886559386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:09,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:09,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:09,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468605688] [2024-11-16 04:11:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:09,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:09,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:09,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:09,595 INFO L87 Difference]: Start difference. First operand 1286 states and 1791 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:10,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:10,920 INFO L93 Difference]: Finished difference Result 2870 states and 3916 transitions. [2024-11-16 04:11:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:10,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-16 04:11:10,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:10,925 INFO L225 Difference]: With dead ends: 2870 [2024-11-16 04:11:10,925 INFO L226 Difference]: Without dead ends: 1586 [2024-11-16 04:11:10,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:10,928 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 225 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:10,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 363 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:11:10,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-11-16 04:11:10,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2024-11-16 04:11:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 1.3230283911671925) internal successors, (2097), 1585 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2097 transitions. [2024-11-16 04:11:10,946 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2097 transitions. Word has length 119 [2024-11-16 04:11:10,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:10,946 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2097 transitions. [2024-11-16 04:11:10,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:10,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2097 transitions. [2024-11-16 04:11:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-16 04:11:10,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:10,949 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:10,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:11:10,949 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:10,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash 790910606, now seen corresponding path program 1 times [2024-11-16 04:11:10,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:10,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126116440] [2024-11-16 04:11:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:11,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:11,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126116440] [2024-11-16 04:11:11,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126116440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:11,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239577847] [2024-11-16 04:11:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:11,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:11,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:11,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:11:11,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:11:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:11,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 04:11:11,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 129 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:12,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:11:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 129 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:12,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239577847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:11:12,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:11:12,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-16 04:11:12,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622532328] [2024-11-16 04:11:12,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:11:12,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 04:11:12,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:12,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 04:11:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:11:12,987 INFO L87 Difference]: Start difference. First operand 1586 states and 2097 transitions. Second operand has 10 states, 10 states have (on average 52.7) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:19,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:19,091 INFO L93 Difference]: Finished difference Result 8199 states and 11116 transitions. [2024-11-16 04:11:19,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 04:11:19,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 52.7) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 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 211 [2024-11-16 04:11:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:19,102 INFO L225 Difference]: With dead ends: 8199 [2024-11-16 04:11:19,102 INFO L226 Difference]: Without dead ends: 4302 [2024-11-16 04:11:19,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-16 04:11:19,106 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 4450 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 6483 mSolverCounterSat, 1284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 7767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1284 IncrementalHoareTripleChecker+Valid, 6483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:19,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4450 Valid, 335 Invalid, 7767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1284 Valid, 6483 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-16 04:11:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4302 states. [2024-11-16 04:11:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4302 to 3992. [2024-11-16 04:11:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3992 states, 3991 states have (on average 1.1503382610874469) internal successors, (4591), 3991 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 4591 transitions. [2024-11-16 04:11:19,197 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 4591 transitions. Word has length 211 [2024-11-16 04:11:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:19,198 INFO L471 AbstractCegarLoop]: Abstraction has 3992 states and 4591 transitions. [2024-11-16 04:11:19,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.7) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 4591 transitions. [2024-11-16 04:11:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-16 04:11:19,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:19,202 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:19,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 04:11:19,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:19,404 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:19,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash -146047351, now seen corresponding path program 1 times [2024-11-16 04:11:19,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:19,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161670616] [2024-11-16 04:11:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:19,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:19,620 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-16 04:11:19,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:19,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161670616] [2024-11-16 04:11:19,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161670616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:19,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:19,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:11:19,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164097398] [2024-11-16 04:11:19,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:19,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:19,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:19,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:19,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:19,624 INFO L87 Difference]: Start difference. First operand 3992 states and 4591 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 2 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:20,596 INFO L93 Difference]: Finished difference Result 8889 states and 10376 transitions. [2024-11-16 04:11:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:20,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 2 states have internal predecessors, (288), 0 states have call successors, (0), 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 325 [2024-11-16 04:11:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:20,609 INFO L225 Difference]: With dead ends: 8889 [2024-11-16 04:11:20,610 INFO L226 Difference]: Without dead ends: 5199 [2024-11-16 04:11:20,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:20,614 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 31 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:20,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 269 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:20,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2024-11-16 04:11:20,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5196. [2024-11-16 04:11:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 5195 states have (on average 1.1318575553416748) internal successors, (5880), 5195 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 5880 transitions. [2024-11-16 04:11:20,672 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 5880 transitions. Word has length 325 [2024-11-16 04:11:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:20,673 INFO L471 AbstractCegarLoop]: Abstraction has 5196 states and 5880 transitions. [2024-11-16 04:11:20,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 2 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 5880 transitions. [2024-11-16 04:11:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-16 04:11:20,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:20,676 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:20,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:11:20,677 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:20,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:20,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1580104346, now seen corresponding path program 1 times [2024-11-16 04:11:20,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:20,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820495058] [2024-11-16 04:11:20,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:20,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:21,084 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 04:11:21,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:21,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820495058] [2024-11-16 04:11:21,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820495058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:21,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:21,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:21,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372183383] [2024-11-16 04:11:21,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:21,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:21,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:21,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:21,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:21,090 INFO L87 Difference]: Start difference. First operand 5196 states and 5880 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:22,055 INFO L93 Difference]: Finished difference Result 11293 states and 12887 transitions. [2024-11-16 04:11:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:22,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 390 [2024-11-16 04:11:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:22,068 INFO L225 Difference]: With dead ends: 11293 [2024-11-16 04:11:22,069 INFO L226 Difference]: Without dead ends: 6099 [2024-11-16 04:11:22,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:22,074 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 291 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:22,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 557 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:22,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6099 states. [2024-11-16 04:11:22,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6099 to 6099. [2024-11-16 04:11:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6099 states, 6098 states have (on average 1.1090521482453264) internal successors, (6763), 6098 states have internal predecessors, (6763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:22,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6099 states to 6099 states and 6763 transitions. [2024-11-16 04:11:22,145 INFO L78 Accepts]: Start accepts. Automaton has 6099 states and 6763 transitions. Word has length 390 [2024-11-16 04:11:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:22,146 INFO L471 AbstractCegarLoop]: Abstraction has 6099 states and 6763 transitions. [2024-11-16 04:11:22,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 6099 states and 6763 transitions. [2024-11-16 04:11:22,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-16 04:11:22,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:22,149 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:22,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:11:22,150 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:22,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:22,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1018187389, now seen corresponding path program 1 times [2024-11-16 04:11:22,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:22,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204698849] [2024-11-16 04:11:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:22,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:11:22,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:22,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204698849] [2024-11-16 04:11:22,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204698849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:22,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:22,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:22,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456547488] [2024-11-16 04:11:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:22,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:22,443 INFO L87 Difference]: Start difference. First operand 6099 states and 6763 transitions. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:23,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:23,465 INFO L93 Difference]: Finished difference Result 14907 states and 16682 transitions. [2024-11-16 04:11:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:23,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 407 [2024-11-16 04:11:23,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:23,484 INFO L225 Difference]: With dead ends: 14907 [2024-11-16 04:11:23,484 INFO L226 Difference]: Without dead ends: 8810 [2024-11-16 04:11:23,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:23,489 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 237 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:23,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 566 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:11:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8810 states. [2024-11-16 04:11:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8810 to 8207. [2024-11-16 04:11:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8207 states, 8206 states have (on average 1.0839629539361444) internal successors, (8895), 8206 states have internal predecessors, (8895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8207 states to 8207 states and 8895 transitions. [2024-11-16 04:11:23,648 INFO L78 Accepts]: Start accepts. Automaton has 8207 states and 8895 transitions. Word has length 407 [2024-11-16 04:11:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:23,650 INFO L471 AbstractCegarLoop]: Abstraction has 8207 states and 8895 transitions. [2024-11-16 04:11:23,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 8207 states and 8895 transitions. [2024-11-16 04:11:23,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-16 04:11:23,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:23,659 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:23,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:11:23,660 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:23,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:23,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1809107682, now seen corresponding path program 1 times [2024-11-16 04:11:23,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:23,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706875742] [2024-11-16 04:11:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:23,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-16 04:11:24,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:24,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706875742] [2024-11-16 04:11:24,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706875742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:24,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:24,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:24,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469920433] [2024-11-16 04:11:24,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:24,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:24,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:24,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:24,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:24,014 INFO L87 Difference]: Start difference. First operand 8207 states and 8895 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:24,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:24,965 INFO L93 Difference]: Finished difference Result 18815 states and 20606 transitions. [2024-11-16 04:11:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 421 [2024-11-16 04:11:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:24,982 INFO L225 Difference]: With dead ends: 18815 [2024-11-16 04:11:24,982 INFO L226 Difference]: Without dead ends: 10610 [2024-11-16 04:11:24,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:24,990 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 282 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:24,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 541 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:24,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2024-11-16 04:11:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 10604. [2024-11-16 04:11:25,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10604 states, 10603 states have (on average 1.067905309817976) internal successors, (11323), 10603 states have internal predecessors, (11323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:25,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10604 states to 10604 states and 11323 transitions. [2024-11-16 04:11:25,083 INFO L78 Accepts]: Start accepts. Automaton has 10604 states and 11323 transitions. Word has length 421 [2024-11-16 04:11:25,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:25,084 INFO L471 AbstractCegarLoop]: Abstraction has 10604 states and 11323 transitions. [2024-11-16 04:11:25,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:25,084 INFO L276 IsEmpty]: Start isEmpty. Operand 10604 states and 11323 transitions. [2024-11-16 04:11:25,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-16 04:11:25,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:25,089 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:25,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:11:25,089 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:25,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:25,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1641391, now seen corresponding path program 1 times [2024-11-16 04:11:25,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:25,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395933055] [2024-11-16 04:11:25,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:25,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-16 04:11:25,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:25,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395933055] [2024-11-16 04:11:25,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395933055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:25,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:25,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:25,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983142070] [2024-11-16 04:11:25,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:25,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:25,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:25,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:25,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:25,364 INFO L87 Difference]: Start difference. First operand 10604 states and 11323 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:26,151 INFO L93 Difference]: Finished difference Result 21204 states and 22668 transitions. [2024-11-16 04:11:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:26,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 546 [2024-11-16 04:11:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:26,166 INFO L225 Difference]: With dead ends: 21204 [2024-11-16 04:11:26,167 INFO L226 Difference]: Without dead ends: 10902 [2024-11-16 04:11:26,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:26,176 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 437 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:26,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 70 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:11:26,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10902 states. [2024-11-16 04:11:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10902 to 10602. [2024-11-16 04:11:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10602 states, 10601 states have (on average 1.0677294594849542) internal successors, (11319), 10601 states have internal predecessors, (11319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:26,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10602 states to 10602 states and 11319 transitions. [2024-11-16 04:11:26,269 INFO L78 Accepts]: Start accepts. Automaton has 10602 states and 11319 transitions. Word has length 546 [2024-11-16 04:11:26,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:26,270 INFO L471 AbstractCegarLoop]: Abstraction has 10602 states and 11319 transitions. [2024-11-16 04:11:26,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:26,270 INFO L276 IsEmpty]: Start isEmpty. Operand 10602 states and 11319 transitions. [2024-11-16 04:11:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-16 04:11:26,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:26,274 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:11:26,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:11:26,274 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:26,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:26,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1848228349, now seen corresponding path program 1 times [2024-11-16 04:11:26,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:26,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113920146] [2024-11-16 04:11:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:26,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-16 04:11:26,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:26,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113920146] [2024-11-16 04:11:26,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113920146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:26,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:26,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:26,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555365516] [2024-11-16 04:11:26,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:26,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:26,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:26,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:26,671 INFO L87 Difference]: Start difference. First operand 10602 states and 11319 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:27,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:27,615 INFO L93 Difference]: Finished difference Result 24531 states and 26233 transitions. [2024-11-16 04:11:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:27,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 572 [2024-11-16 04:11:27,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:27,635 INFO L225 Difference]: With dead ends: 24531 [2024-11-16 04:11:27,636 INFO L226 Difference]: Without dead ends: 14231 [2024-11-16 04:11:27,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:27,646 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 297 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:27,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 207 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:11:27,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2024-11-16 04:11:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 11504. [2024-11-16 04:11:27,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11504 states, 11503 states have (on average 1.0653742501956012) internal successors, (12255), 11503 states have internal predecessors, (12255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:27,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11504 states to 11504 states and 12255 transitions. [2024-11-16 04:11:27,834 INFO L78 Accepts]: Start accepts. Automaton has 11504 states and 12255 transitions. Word has length 572 [2024-11-16 04:11:27,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:27,834 INFO L471 AbstractCegarLoop]: Abstraction has 11504 states and 12255 transitions. [2024-11-16 04:11:27,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 11504 states and 12255 transitions. [2024-11-16 04:11:27,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-16 04:11:27,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:27,838 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:11:27,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:11:27,839 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:27,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1198588237, now seen corresponding path program 1 times [2024-11-16 04:11:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246414604] [2024-11-16 04:11:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-16 04:11:28,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:28,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246414604] [2024-11-16 04:11:28,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246414604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:28,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:28,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:28,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368004434] [2024-11-16 04:11:28,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:28,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:28,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:28,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:28,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:28,060 INFO L87 Difference]: Start difference. First operand 11504 states and 12255 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:28,944 INFO L93 Difference]: Finished difference Result 25405 states and 27163 transitions. [2024-11-16 04:11:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 583 [2024-11-16 04:11:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:28,963 INFO L225 Difference]: With dead ends: 25405 [2024-11-16 04:11:28,963 INFO L226 Difference]: Without dead ends: 13903 [2024-11-16 04:11:28,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:28,975 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 305 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:28,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 471 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:11:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13903 states. [2024-11-16 04:11:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13903 to 13903. [2024-11-16 04:11:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13903 states, 13902 states have (on average 1.060279096532873) internal successors, (14740), 13902 states have internal predecessors, (14740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13903 states to 13903 states and 14740 transitions. [2024-11-16 04:11:29,155 INFO L78 Accepts]: Start accepts. Automaton has 13903 states and 14740 transitions. Word has length 583 [2024-11-16 04:11:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:29,156 INFO L471 AbstractCegarLoop]: Abstraction has 13903 states and 14740 transitions. [2024-11-16 04:11:29,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13903 states and 14740 transitions. [2024-11-16 04:11:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 737 [2024-11-16 04:11:29,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:29,167 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:29,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:11:29,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:29,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1186541600, now seen corresponding path program 1 times [2024-11-16 04:11:29,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:29,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112030056] [2024-11-16 04:11:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 543 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-16 04:11:29,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:29,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112030056] [2024-11-16 04:11:29,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112030056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:29,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:29,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:29,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094324719] [2024-11-16 04:11:29,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:29,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:29,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:29,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:29,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:29,614 INFO L87 Difference]: Start difference. First operand 13903 states and 14740 transitions. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:30,476 INFO L93 Difference]: Finished difference Result 30504 states and 32602 transitions. [2024-11-16 04:11:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:30,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 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 736 [2024-11-16 04:11:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:30,508 INFO L225 Difference]: With dead ends: 30504 [2024-11-16 04:11:30,512 INFO L226 Difference]: Without dead ends: 16903 [2024-11-16 04:11:30,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:30,526 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 159 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:30,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 523 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:11:30,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16903 states. [2024-11-16 04:11:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16903 to 16603. [2024-11-16 04:11:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16603 states, 16602 states have (on average 1.0538489338633898) internal successors, (17496), 16602 states have internal predecessors, (17496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16603 states to 16603 states and 17496 transitions. [2024-11-16 04:11:30,786 INFO L78 Accepts]: Start accepts. Automaton has 16603 states and 17496 transitions. Word has length 736 [2024-11-16 04:11:30,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:30,787 INFO L471 AbstractCegarLoop]: Abstraction has 16603 states and 17496 transitions. [2024-11-16 04:11:30,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 16603 states and 17496 transitions. [2024-11-16 04:11:30,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2024-11-16 04:11:30,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:30,795 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:30,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:11:30,795 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:30,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash -280518115, now seen corresponding path program 1 times [2024-11-16 04:11:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814922200] [2024-11-16 04:11:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:30,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2024-11-16 04:11:31,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:31,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814922200] [2024-11-16 04:11:31,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814922200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:31,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:31,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:31,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607734313] [2024-11-16 04:11:31,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:31,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:31,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:31,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:31,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:31,072 INFO L87 Difference]: Start difference. First operand 16603 states and 17496 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:31,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:31,932 INFO L93 Difference]: Finished difference Result 35004 states and 36987 transitions. [2024-11-16 04:11:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 739 [2024-11-16 04:11:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:31,949 INFO L225 Difference]: With dead ends: 35004 [2024-11-16 04:11:31,949 INFO L226 Difference]: Without dead ends: 18703 [2024-11-16 04:11:31,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:31,955 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 276 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:31,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 212 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:11:31,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18703 states. [2024-11-16 04:11:32,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18703 to 15097. [2024-11-16 04:11:32,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15097 states, 15096 states have (on average 1.0542527821939587) internal successors, (15915), 15096 states have internal predecessors, (15915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15097 states to 15097 states and 15915 transitions. [2024-11-16 04:11:32,086 INFO L78 Accepts]: Start accepts. Automaton has 15097 states and 15915 transitions. Word has length 739 [2024-11-16 04:11:32,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:32,086 INFO L471 AbstractCegarLoop]: Abstraction has 15097 states and 15915 transitions. [2024-11-16 04:11:32,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:32,087 INFO L276 IsEmpty]: Start isEmpty. Operand 15097 states and 15915 transitions. [2024-11-16 04:11:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2024-11-16 04:11:32,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:32,097 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:11:32,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 04:11:32,097 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:32,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2043264276, now seen corresponding path program 1 times [2024-11-16 04:11:32,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:32,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540222718] [2024-11-16 04:11:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:32,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 551 proven. 394 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-16 04:11:32,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:32,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540222718] [2024-11-16 04:11:32,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540222718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:32,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934159283] [2024-11-16 04:11:32,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:32,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:32,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:32,974 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:11:32,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:11:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:33,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:11:33,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-16 04:11:33,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:11:33,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934159283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:33,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:11:33,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:11:33,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797115457] [2024-11-16 04:11:33,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:33,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:33,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:33,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:33,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:11:33,458 INFO L87 Difference]: Start difference. First operand 15097 states and 15915 transitions. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:34,370 INFO L93 Difference]: Finished difference Result 34691 states and 36647 transitions. [2024-11-16 04:11:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 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 776 [2024-11-16 04:11:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:34,389 INFO L225 Difference]: With dead ends: 34691 [2024-11-16 04:11:34,389 INFO L226 Difference]: Without dead ends: 19896 [2024-11-16 04:11:34,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 777 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:11:34,400 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 208 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:34,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 126 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:11:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19896 states. [2024-11-16 04:11:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19896 to 18696. [2024-11-16 04:11:34,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18696 states, 18695 states have (on average 1.0519925113666755) internal successors, (19667), 18695 states have internal predecessors, (19667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18696 states to 18696 states and 19667 transitions. [2024-11-16 04:11:34,555 INFO L78 Accepts]: Start accepts. Automaton has 18696 states and 19667 transitions. Word has length 776 [2024-11-16 04:11:34,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:34,555 INFO L471 AbstractCegarLoop]: Abstraction has 18696 states and 19667 transitions. [2024-11-16 04:11:34,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 18696 states and 19667 transitions. [2024-11-16 04:11:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-16 04:11:34,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:34,562 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:34,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 04:11:34,763 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,SelfDestructingSolverStorable13 [2024-11-16 04:11:34,764 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:34,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:34,764 INFO L85 PathProgramCache]: Analyzing trace with hash -478661500, now seen corresponding path program 1 times [2024-11-16 04:11:34,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:34,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105938795] [2024-11-16 04:11:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:34,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 484 proven. 309 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-16 04:11:35,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:35,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105938795] [2024-11-16 04:11:35,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105938795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:11:35,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431771772] [2024-11-16 04:11:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:35,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:35,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:11:35,661 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) [2024-11-16 04:11:35,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:11:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:35,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:11:35,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:11:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2024-11-16 04:11:35,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:11:35,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431771772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:35,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:11:35,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:11:35,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010698467] [2024-11-16 04:11:35,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:35,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:11:35,923 INFO L87 Difference]: Start difference. First operand 18696 states and 19667 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:36,787 INFO L93 Difference]: Finished difference Result 37685 states and 39754 transitions. [2024-11-16 04:11:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:36,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 789 [2024-11-16 04:11:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:36,804 INFO L225 Difference]: With dead ends: 37685 [2024-11-16 04:11:36,805 INFO L226 Difference]: Without dead ends: 18991 [2024-11-16 04:11:36,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:11:36,817 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 283 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:36,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 504 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:11:36,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2024-11-16 04:11:36,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 18390. [2024-11-16 04:11:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18390 states, 18389 states have (on average 1.03763119256077) internal successors, (19081), 18389 states have internal predecessors, (19081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:36,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18390 states to 18390 states and 19081 transitions. [2024-11-16 04:11:36,970 INFO L78 Accepts]: Start accepts. Automaton has 18390 states and 19081 transitions. Word has length 789 [2024-11-16 04:11:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:36,971 INFO L471 AbstractCegarLoop]: Abstraction has 18390 states and 19081 transitions. [2024-11-16 04:11:36,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:36,971 INFO L276 IsEmpty]: Start isEmpty. Operand 18390 states and 19081 transitions. [2024-11-16 04:11:36,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2024-11-16 04:11:36,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:36,982 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:36,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:11:37,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:11:37,184 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:37,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1530192325, now seen corresponding path program 1 times [2024-11-16 04:11:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770130151] [2024-11-16 04:11:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:37,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 739 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2024-11-16 04:11:37,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:37,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770130151] [2024-11-16 04:11:37,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770130151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:37,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:37,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:37,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678686271] [2024-11-16 04:11:37,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:37,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:37,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:37,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:37,733 INFO L87 Difference]: Start difference. First operand 18390 states and 19081 transitions. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:38,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:38,605 INFO L93 Difference]: Finished difference Result 41593 states and 43137 transitions. [2024-11-16 04:11:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:38,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 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 926 [2024-11-16 04:11:38,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:38,629 INFO L225 Difference]: With dead ends: 41593 [2024-11-16 04:11:38,629 INFO L226 Difference]: Without dead ends: 23505 [2024-11-16 04:11:38,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:38,645 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 268 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:38,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 158 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:11:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23505 states. [2024-11-16 04:11:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23505 to 20190. [2024-11-16 04:11:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20190 states, 20189 states have (on average 1.0380405171132796) internal successors, (20957), 20189 states have internal predecessors, (20957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20190 states to 20190 states and 20957 transitions. [2024-11-16 04:11:38,829 INFO L78 Accepts]: Start accepts. Automaton has 20190 states and 20957 transitions. Word has length 926 [2024-11-16 04:11:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:38,830 INFO L471 AbstractCegarLoop]: Abstraction has 20190 states and 20957 transitions. [2024-11-16 04:11:38,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:38,830 INFO L276 IsEmpty]: Start isEmpty. Operand 20190 states and 20957 transitions. [2024-11-16 04:11:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1606 [2024-11-16 04:11:38,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:11:38,851 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-16 04:11:38,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:11:38,852 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:11:38,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:11:38,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1535829154, now seen corresponding path program 1 times [2024-11-16 04:11:38,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:11:38,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743366445] [2024-11-16 04:11:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:11:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:11:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:11:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4606 backedges. 2892 proven. 0 refuted. 0 times theorem prover too weak. 1714 trivial. 0 not checked. [2024-11-16 04:11:39,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:11:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743366445] [2024-11-16 04:11:39,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743366445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:11:39,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:11:39,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:11:39,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208107277] [2024-11-16 04:11:39,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:11:39,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:11:39,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:11:39,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:11:39,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:39,732 INFO L87 Difference]: Start difference. First operand 20190 states and 20957 transitions. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:11:40,384 INFO L93 Difference]: Finished difference Result 33126 states and 34248 transitions. [2024-11-16 04:11:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:11:40,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 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 1605 [2024-11-16 04:11:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:11:40,386 INFO L225 Difference]: With dead ends: 33126 [2024-11-16 04:11:40,386 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:11:40,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:11:40,396 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 72 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:11:40,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 116 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:11:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:11:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:11:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:11:40,397 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1605 [2024-11-16 04:11:40,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:11:40,397 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:11:40,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:11:40,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:11:40,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:11:40,400 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:11:40,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:11:40,402 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:11:40,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:11:41,406 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:11:41,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:11:41 BoogieIcfgContainer [2024-11-16 04:11:41,422 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:11:41,423 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:11:41,423 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:11:41,423 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:11:41,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:11:05" (3/4) ... [2024-11-16 04:11:41,425 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:11:41,451 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:11:41,453 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:11:41,454 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:11:41,456 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:11:41,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:11:41,636 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:11:41,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:11:41,637 INFO L158 Benchmark]: Toolchain (without parser) took 39525.61ms. Allocated memory was 184.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 111.7MB in the beginning and 916.0MB in the end (delta: -804.3MB). Peak memory consumption was 528.1MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,637 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:11:41,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 813.67ms. Allocated memory is still 184.5MB. Free memory was 111.4MB in the beginning and 92.6MB in the end (delta: 18.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 219.02ms. Allocated memory is still 184.5MB. Free memory was 91.7MB in the beginning and 131.2MB in the end (delta: -39.5MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,638 INFO L158 Benchmark]: Boogie Preprocessor took 192.40ms. Allocated memory is still 184.5MB. Free memory was 131.2MB in the beginning and 74.6MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,638 INFO L158 Benchmark]: IcfgBuilder took 2082.80ms. Allocated memory was 184.5MB in the beginning and 314.6MB in the end (delta: 130.0MB). Free memory was 74.6MB in the beginning and 176.0MB in the end (delta: -101.4MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,638 INFO L158 Benchmark]: TraceAbstraction took 35997.39ms. Allocated memory was 314.6MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 174.9MB in the beginning and 943.3MB in the end (delta: -768.3MB). Peak memory consumption was 674.5MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,639 INFO L158 Benchmark]: Witness Printer took 213.56ms. Allocated memory is still 1.5GB. Free memory was 943.3MB in the beginning and 916.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 04:11:41,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 813.67ms. Allocated memory is still 184.5MB. Free memory was 111.4MB in the beginning and 92.6MB in the end (delta: 18.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 219.02ms. Allocated memory is still 184.5MB. Free memory was 91.7MB in the beginning and 131.2MB in the end (delta: -39.5MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 192.40ms. Allocated memory is still 184.5MB. Free memory was 131.2MB in the beginning and 74.6MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * IcfgBuilder took 2082.80ms. Allocated memory was 184.5MB in the beginning and 314.6MB in the end (delta: 130.0MB). Free memory was 74.6MB in the beginning and 176.0MB in the end (delta: -101.4MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB. * TraceAbstraction took 35997.39ms. Allocated memory was 314.6MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 174.9MB in the beginning and 943.3MB in the end (delta: -768.3MB). Peak memory consumption was 674.5MB. Max. memory is 16.1GB. * Witness Printer took 213.56ms. Allocated memory is still 1.5GB. Free memory was 943.3MB in the beginning and 916.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.9s, OverallIterations: 17, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8435 SdHoareTripleChecker+Valid, 20.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8435 mSDsluCounter, 5617 SdHoareTripleChecker+Invalid, 17.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 809 mSDsCounter, 3452 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19151 IncrementalHoareTripleChecker+Invalid, 22603 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3452 mSolverCounterUnsat, 4808 mSDtfsCounter, 19151 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2042 GetRequests, 2007 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20190occurred in iteration=16, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 17 MinimizatonAttempts, 12985 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 11074 NumberOfCodeBlocks, 11074 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 11264 ConstructedInterpolants, 0 QuantifiedInterpolants, 27315 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2161 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 14039/14866 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:11:41,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE