./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label48.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 c03a342c0e8f0bfba399e237ba210df18813842785480d8c5bf35ca28242fc9f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:34:53,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:34:53,278 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:34:53,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:34:53,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:34:53,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:34:53,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:34:53,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:34:53,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:34:53,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:34:53,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:34:53,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:34:53,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:34:53,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:34:53,320 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:34:53,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:34:53,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:34:53,320 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:34:53,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:34:53,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:34:53,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:34:53,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:34:53,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:34:53,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:34:53,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:34:53,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:34:53,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:34:53,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:34:53,323 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:34:53,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:34:53,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:34:53,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:34:53,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:34:53,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:34:53,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:34:53,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:34:53,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:34:53,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:34:53,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:34:53,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:34:53,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:34:53,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:34:53,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03a342c0e8f0bfba399e237ba210df18813842785480d8c5bf35ca28242fc9f [2024-11-09 19:34:53,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:34:53,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:34:53,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:34:53,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:34:53,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:34:53,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label48.c [2024-11-09 19:34:54,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:34:55,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:34:55,438 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label48.c [2024-11-09 19:34:55,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871ff1582/d9443ee8f25d45f4a7bf58c59f4105d5/FLAGfe1740c25 [2024-11-09 19:34:55,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871ff1582/d9443ee8f25d45f4a7bf58c59f4105d5 [2024-11-09 19:34:55,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:34:55,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:34:55,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:34:55,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:34:55,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:34:55,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:34:55" (1/1) ... [2024-11-09 19:34:55,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1287d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:55, skipping insertion in model container [2024-11-09 19:34:55,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:34:55" (1/1) ... [2024-11-09 19:34:55,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:34:55,956 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label48.c[1234,1247] [2024-11-09 19:34:56,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:34:56,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:34:56,848 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label48.c[1234,1247] [2024-11-09 19:34:57,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:34:57,344 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:34:57,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57 WrapperNode [2024-11-09 19:34:57,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:34:57,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:34:57,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:34:57,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:34:57,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:57,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,012 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-09 19:34:58,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:34:58,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:34:58,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:34:58,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:34:58,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,224 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,579 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:34:58,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,816 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:34:58,962 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:34:58,963 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:34:58,963 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:34:58,964 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (1/1) ... [2024-11-09 19:34:58,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:34:58,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:34:59,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:34:59,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:34:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:34:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:34:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:34:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:34:59,132 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:34:59,134 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:35:05,433 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-09 19:35:05,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:35:05,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:35:05,723 INFO L? ?]: Removed 2111 outVars from TransFormulas that were not future-live. [2024-11-09 19:35:05,723 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:35:05,775 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:35:05,775 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:35:05,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:35:05 BoogieIcfgContainer [2024-11-09 19:35:05,776 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:35:05,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:35:05,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:35:05,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:35:05,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:34:55" (1/3) ... [2024-11-09 19:35:05,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b6a38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:35:05, skipping insertion in model container [2024-11-09 19:35:05,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:34:57" (2/3) ... [2024-11-09 19:35:05,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b6a38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:35:05, skipping insertion in model container [2024-11-09 19:35:05,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:35:05" (3/3) ... [2024-11-09 19:35:05,786 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label48.c [2024-11-09 19:35:05,804 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:35:05,805 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:35:05,908 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:35:05,917 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;@7d48b7f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:35:05,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:35:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:05,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 19:35:05,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:05,937 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:05,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:05,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:05,944 INFO L85 PathProgramCache]: Analyzing trace with hash 640513144, now seen corresponding path program 1 times [2024-11-09 19:35:05,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:05,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538545057] [2024-11-09 19:35:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:05,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:06,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:06,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:06,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538545057] [2024-11-09 19:35:06,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538545057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:06,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:06,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582919939] [2024-11-09 19:35:06,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:06,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:06,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:06,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:06,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:06,174 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 0 states have call successors, (0), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:11,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:11,615 INFO L93 Difference]: Finished difference Result 3153 states and 7960 transitions. [2024-11-09 19:35:11,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-11-09 19:35:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:11,645 INFO L225 Difference]: With dead ends: 3153 [2024-11-09 19:35:11,646 INFO L226 Difference]: Without dead ends: 1967 [2024-11-09 19:35:11,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:11,655 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 1889 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 4146 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 4730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 4146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:11,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 995 Invalid, 4730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 4146 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-09 19:35:11,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1967 states. [2024-11-09 19:35:11,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1967 to 1954. [2024-11-09 19:35:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1953 states have (on average 2.3860727086533537) internal successors, (4660), 1953 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 4660 transitions. [2024-11-09 19:35:11,804 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 4660 transitions. Word has length 8 [2024-11-09 19:35:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:11,804 INFO L471 AbstractCegarLoop]: Abstraction has 1954 states and 4660 transitions. [2024-11-09 19:35:11,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:11,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 4660 transitions. [2024-11-09 19:35:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 19:35:11,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:11,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:11,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:35:11,808 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:11,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:11,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1095392356, now seen corresponding path program 1 times [2024-11-09 19:35:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:11,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929323676] [2024-11-09 19:35:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:11,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:12,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:12,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929323676] [2024-11-09 19:35:12,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929323676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:12,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:12,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:12,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286401519] [2024-11-09 19:35:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:12,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:12,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:12,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:12,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:12,109 INFO L87 Difference]: Start difference. First operand 1954 states and 4660 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:17,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:17,107 INFO L93 Difference]: Finished difference Result 5551 states and 13527 transitions. [2024-11-09 19:35:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:17,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-09 19:35:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:17,124 INFO L225 Difference]: With dead ends: 5551 [2024-11-09 19:35:17,124 INFO L226 Difference]: Without dead ends: 3599 [2024-11-09 19:35:17,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:17,128 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 1641 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 4773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:17,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 1016 Invalid, 4773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 4024 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-09 19:35:17,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3599 states. [2024-11-09 19:35:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3599 to 3586. [2024-11-09 19:35:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 3585 states have (on average 2.303207810320781) internal successors, (8257), 3585 states have internal predecessors, (8257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:17,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 8257 transitions. [2024-11-09 19:35:17,200 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 8257 transitions. Word has length 80 [2024-11-09 19:35:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:17,201 INFO L471 AbstractCegarLoop]: Abstraction has 3586 states and 8257 transitions. [2024-11-09 19:35:17,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 8257 transitions. [2024-11-09 19:35:17,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 19:35:17,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:17,206 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:17,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:35:17,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:17,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:17,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1034970994, now seen corresponding path program 1 times [2024-11-09 19:35:17,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:17,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007470294] [2024-11-09 19:35:17,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:17,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:17,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:17,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007470294] [2024-11-09 19:35:17,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007470294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:17,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:17,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:17,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702206420] [2024-11-09 19:35:17,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:17,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:17,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:17,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:17,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:17,448 INFO L87 Difference]: Start difference. First operand 3586 states and 8257 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:21,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:21,801 INFO L93 Difference]: Finished difference Result 10415 states and 24290 transitions. [2024-11-09 19:35:21,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:21,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-09 19:35:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:21,829 INFO L225 Difference]: With dead ends: 10415 [2024-11-09 19:35:21,829 INFO L226 Difference]: Without dead ends: 6831 [2024-11-09 19:35:21,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:21,836 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 1645 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4306 mSolverCounterSat, 557 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 4863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 4306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:21,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 598 Invalid, 4863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [557 Valid, 4306 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:35:21,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2024-11-09 19:35:21,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6818. [2024-11-09 19:35:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 6817 states have (on average 2.2741675223705444) internal successors, (15503), 6817 states have internal predecessors, (15503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 15503 transitions. [2024-11-09 19:35:21,975 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 15503 transitions. Word has length 94 [2024-11-09 19:35:21,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:21,979 INFO L471 AbstractCegarLoop]: Abstraction has 6818 states and 15503 transitions. [2024-11-09 19:35:21,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:21,980 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 15503 transitions. [2024-11-09 19:35:21,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-09 19:35:21,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:21,987 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 19:35:21,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:35:21,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:21,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:21,988 INFO L85 PathProgramCache]: Analyzing trace with hash -306021026, now seen corresponding path program 1 times [2024-11-09 19:35:21,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:21,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685719503] [2024-11-09 19:35:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:21,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:22,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:22,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685719503] [2024-11-09 19:35:22,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685719503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:22,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:22,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:22,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834789725] [2024-11-09 19:35:22,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:22,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:22,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:22,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:22,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:22,179 INFO L87 Difference]: Start difference. First operand 6818 states and 15503 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:26,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:26,221 INFO L93 Difference]: Finished difference Result 19975 states and 45863 transitions. [2024-11-09 19:35:26,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:26,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-09 19:35:26,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:26,263 INFO L225 Difference]: With dead ends: 19975 [2024-11-09 19:35:26,263 INFO L226 Difference]: Without dead ends: 13159 [2024-11-09 19:35:26,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:26,273 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 1495 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 4685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:26,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1115 Invalid, 4685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [797 Valid, 3888 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:35:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13159 states. [2024-11-09 19:35:26,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13159 to 13131. [2024-11-09 19:35:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13131 states, 13130 states have (on average 2.147829398324448) internal successors, (28201), 13130 states have internal predecessors, (28201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13131 states to 13131 states and 28201 transitions. [2024-11-09 19:35:26,545 INFO L78 Accepts]: Start accepts. Automaton has 13131 states and 28201 transitions. Word has length 110 [2024-11-09 19:35:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:26,547 INFO L471 AbstractCegarLoop]: Abstraction has 13131 states and 28201 transitions. [2024-11-09 19:35:26,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 13131 states and 28201 transitions. [2024-11-09 19:35:26,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-09 19:35:26,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:26,555 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:26,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:35:26,555 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:26,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:26,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1011666242, now seen corresponding path program 1 times [2024-11-09 19:35:26,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:26,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731401850] [2024-11-09 19:35:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:26,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 19:35:27,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:27,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731401850] [2024-11-09 19:35:27,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731401850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:27,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:27,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:27,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915935356] [2024-11-09 19:35:27,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:27,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:27,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:27,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:27,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:27,045 INFO L87 Difference]: Start difference. First operand 13131 states and 28201 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:31,109 INFO L93 Difference]: Finished difference Result 25472 states and 54871 transitions. [2024-11-09 19:35:31,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:31,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 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 202 [2024-11-09 19:35:31,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:31,139 INFO L225 Difference]: With dead ends: 25472 [2024-11-09 19:35:31,139 INFO L226 Difference]: Without dead ends: 13131 [2024-11-09 19:35:31,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:31,152 INFO L432 NwaCegarLoop]: 1087 mSDtfsCounter, 1416 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 3978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:31,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 1218 Invalid, 3978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3964 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:35:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13131 states. [2024-11-09 19:35:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13131 to 13131. [2024-11-09 19:35:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13131 states, 13130 states have (on average 2.1466869763899465) internal successors, (28186), 13130 states have internal predecessors, (28186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13131 states to 13131 states and 28186 transitions. [2024-11-09 19:35:31,460 INFO L78 Accepts]: Start accepts. Automaton has 13131 states and 28186 transitions. Word has length 202 [2024-11-09 19:35:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:31,460 INFO L471 AbstractCegarLoop]: Abstraction has 13131 states and 28186 transitions. [2024-11-09 19:35:31,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13131 states and 28186 transitions. [2024-11-09 19:35:31,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-09 19:35:31,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:31,465 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:31,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:35:31,466 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:31,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:31,466 INFO L85 PathProgramCache]: Analyzing trace with hash 492580320, now seen corresponding path program 1 times [2024-11-09 19:35:31,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:31,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642119380] [2024-11-09 19:35:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:31,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:31,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:31,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642119380] [2024-11-09 19:35:31,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642119380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:31,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:31,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:31,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301659431] [2024-11-09 19:35:31,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:31,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:35:31,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:31,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:35:31,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:31,777 INFO L87 Difference]: Start difference. First operand 13131 states and 28186 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:40,476 INFO L93 Difference]: Finished difference Result 45463 states and 99183 transitions. [2024-11-09 19:35:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:35:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-11-09 19:35:40,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:40,555 INFO L225 Difference]: With dead ends: 45463 [2024-11-09 19:35:40,556 INFO L226 Difference]: Without dead ends: 33122 [2024-11-09 19:35:40,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:40,571 INFO L432 NwaCegarLoop]: 980 mSDtfsCounter, 3041 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 10323 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 10935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 10323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:40,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 1273 Invalid, 10935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 10323 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-09 19:35:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33122 states. [2024-11-09 19:35:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33122 to 32899. [2024-11-09 19:35:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32899 states, 32898 states have (on average 2.123989300261414) internal successors, (69875), 32898 states have internal predecessors, (69875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32899 states to 32899 states and 69875 transitions. [2024-11-09 19:35:41,046 INFO L78 Accepts]: Start accepts. Automaton has 32899 states and 69875 transitions. Word has length 207 [2024-11-09 19:35:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:41,046 INFO L471 AbstractCegarLoop]: Abstraction has 32899 states and 69875 transitions. [2024-11-09 19:35:41,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:41,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32899 states and 69875 transitions. [2024-11-09 19:35:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-09 19:35:41,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:41,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:41,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:35:41,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:41,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:41,050 INFO L85 PathProgramCache]: Analyzing trace with hash 497201223, now seen corresponding path program 1 times [2024-11-09 19:35:41,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:41,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079679467] [2024-11-09 19:35:41,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:41,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:41,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:41,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079679467] [2024-11-09 19:35:41,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079679467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:41,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:41,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502371113] [2024-11-09 19:35:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:41,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:41,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:41,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:41,231 INFO L87 Difference]: Start difference. First operand 32899 states and 69875 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:45,845 INFO L93 Difference]: Finished difference Result 80000 states and 172383 transitions. [2024-11-09 19:35:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:45,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2024-11-09 19:35:45,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:45,948 INFO L225 Difference]: With dead ends: 80000 [2024-11-09 19:35:45,948 INFO L226 Difference]: Without dead ends: 47891 [2024-11-09 19:35:45,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:45,979 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 1552 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 4756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:45,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 1060 Invalid, 4756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 3865 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 19:35:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47891 states. [2024-11-09 19:35:46,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47891 to 47879. [2024-11-09 19:35:46,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47879 states, 47878 states have (on average 2.1108651155019005) internal successors, (101064), 47878 states have internal predecessors, (101064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47879 states to 47879 states and 101064 transitions. [2024-11-09 19:35:46,599 INFO L78 Accepts]: Start accepts. Automaton has 47879 states and 101064 transitions. Word has length 209 [2024-11-09 19:35:46,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:46,599 INFO L471 AbstractCegarLoop]: Abstraction has 47879 states and 101064 transitions. [2024-11-09 19:35:46,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 47879 states and 101064 transitions. [2024-11-09 19:35:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-09 19:35:46,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:46,603 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:46,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:35:46,604 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:46,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:46,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1164735593, now seen corresponding path program 1 times [2024-11-09 19:35:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:46,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504983812] [2024-11-09 19:35:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:46,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:46,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504983812] [2024-11-09 19:35:46,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504983812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:46,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:46,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:46,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531970025] [2024-11-09 19:35:46,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:46,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:46,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:46,904 INFO L87 Difference]: Start difference. First operand 47879 states and 101064 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:51,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:51,145 INFO L93 Difference]: Finished difference Result 94783 states and 200356 transitions. [2024-11-09 19:35:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:51,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2024-11-09 19:35:51,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:51,264 INFO L225 Difference]: With dead ends: 94783 [2024-11-09 19:35:51,265 INFO L226 Difference]: Without dead ends: 47694 [2024-11-09 19:35:51,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:51,299 INFO L432 NwaCegarLoop]: 2228 mSDtfsCounter, 1755 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 2373 SdHoareTripleChecker+Invalid, 4384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:51,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 2373 Invalid, 4384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:35:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47694 states. [2024-11-09 19:35:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47694 to 47688. [2024-11-09 19:35:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47688 states, 47687 states have (on average 2.0456937949546) internal successors, (97553), 47687 states have internal predecessors, (97553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:52,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47688 states to 47688 states and 97553 transitions. [2024-11-09 19:35:52,269 INFO L78 Accepts]: Start accepts. Automaton has 47688 states and 97553 transitions. Word has length 224 [2024-11-09 19:35:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:52,272 INFO L471 AbstractCegarLoop]: Abstraction has 47688 states and 97553 transitions. [2024-11-09 19:35:52,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 47688 states and 97553 transitions. [2024-11-09 19:35:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-09 19:35:52,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:52,275 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:52,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:35:52,276 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:52,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1676181467, now seen corresponding path program 1 times [2024-11-09 19:35:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:52,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874121450] [2024-11-09 19:35:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-09 19:35:52,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874121450] [2024-11-09 19:35:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874121450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:52,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700918354] [2024-11-09 19:35:52,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:52,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:52,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:52,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:52,791 INFO L87 Difference]: Start difference. First operand 47688 states and 97553 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:57,403 INFO L93 Difference]: Finished difference Result 126097 states and 259253 transitions. [2024-11-09 19:35:57,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:57,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2024-11-09 19:35:57,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:57,544 INFO L225 Difference]: With dead ends: 126097 [2024-11-09 19:35:57,544 INFO L226 Difference]: Without dead ends: 79199 [2024-11-09 19:35:57,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:57,574 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 1561 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 4613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:57,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 986 Invalid, 4613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:35:57,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79199 states. [2024-11-09 19:35:58,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79199 to 73676. [2024-11-09 19:35:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73676 states, 73675 states have (on average 2.022667119104174) internal successors, (149020), 73675 states have internal predecessors, (149020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73676 states to 73676 states and 149020 transitions. [2024-11-09 19:35:58,905 INFO L78 Accepts]: Start accepts. Automaton has 73676 states and 149020 transitions. Word has length 240 [2024-11-09 19:35:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:58,905 INFO L471 AbstractCegarLoop]: Abstraction has 73676 states and 149020 transitions. [2024-11-09 19:35:58,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:35:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 73676 states and 149020 transitions. [2024-11-09 19:35:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-09 19:35:58,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:58,909 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:58,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:35:58,910 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:58,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:58,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1787632593, now seen corresponding path program 1 times [2024-11-09 19:35:58,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:58,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892801863] [2024-11-09 19:35:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:58,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 19:35:59,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:59,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892801863] [2024-11-09 19:35:59,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892801863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:59,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:59,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:35:59,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534094020] [2024-11-09 19:35:59,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:59,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:35:59,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:35:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:35:59,396 INFO L87 Difference]: Start difference. First operand 73676 states and 149020 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:36:07,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:07,836 INFO L93 Difference]: Finished difference Result 198781 states and 402796 transitions. [2024-11-09 19:36:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:36:07,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 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 299 [2024-11-09 19:36:07,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:08,027 INFO L225 Difference]: With dead ends: 198781 [2024-11-09 19:36:08,028 INFO L226 Difference]: Without dead ends: 125895 [2024-11-09 19:36:08,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:36:08,280 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 3138 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 9497 mSolverCounterSat, 1038 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3138 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 10535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1038 IncrementalHoareTripleChecker+Valid, 9497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:08,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3138 Valid, 814 Invalid, 10535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1038 Valid, 9497 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-09 19:36:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125895 states. [2024-11-09 19:36:09,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125895 to 124192. [2024-11-09 19:36:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124192 states, 124191 states have (on average 2.018576225330338) internal successors, (250689), 124191 states have internal predecessors, (250689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:36:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124192 states to 124192 states and 250689 transitions. [2024-11-09 19:36:10,608 INFO L78 Accepts]: Start accepts. Automaton has 124192 states and 250689 transitions. Word has length 299 [2024-11-09 19:36:10,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:10,610 INFO L471 AbstractCegarLoop]: Abstraction has 124192 states and 250689 transitions. [2024-11-09 19:36:10,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:36:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 124192 states and 250689 transitions. [2024-11-09 19:36:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-09 19:36:10,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:10,626 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:10,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:36:10,627 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:10,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:10,627 INFO L85 PathProgramCache]: Analyzing trace with hash -785181642, now seen corresponding path program 1 times [2024-11-09 19:36:10,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:10,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450851818] [2024-11-09 19:36:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:10,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat