./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label07.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/Problem12_label07.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 bcaadc0834b1e1668dc1393f3526c5eee7053e110c3b9c83c6fc0a5a0bac3de4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:24:48,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:24:48,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:24:48,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:24:48,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:24:49,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:24:49,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:24:49,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:24:49,017 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:24:49,018 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:24:49,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:24:49,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:24:49,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:24:49,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:24:49,020 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:24:49,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:24:49,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:24:49,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:24:49,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:24:49,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:24:49,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:24:49,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:24:49,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:24:49,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:24:49,025 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:24:49,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:24:49,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:24:49,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:24:49,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:24:49,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:24:49,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:24:49,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:24:49,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:24:49,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:24:49,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:24:49,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:24:49,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:24:49,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:24:49,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:24:49,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:24:49,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:24:49,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:24:49,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcaadc0834b1e1668dc1393f3526c5eee7053e110c3b9c83c6fc0a5a0bac3de4 [2024-11-09 19:24:49,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:24:49,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:24:49,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:24:49,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:24:49,346 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:24:49,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label07.c [2024-11-09 19:24:50,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:24:51,269 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:24:51,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label07.c [2024-11-09 19:24:51,317 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d320f01e/abc39d1e912d43d994f8efd72b186021/FLAG67e9978c1 [2024-11-09 19:24:51,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d320f01e/abc39d1e912d43d994f8efd72b186021 [2024-11-09 19:24:51,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:24:51,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:24:51,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:24:51,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:24:51,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:24:51,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:51" (1/1) ... [2024-11-09 19:24:51,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e10c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:51, skipping insertion in model container [2024-11-09 19:24:51,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:51" (1/1) ... [2024-11-09 19:24:51,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:24:51,818 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/Problem12_label07.c[1203,1216] [2024-11-09 19:24:52,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:24:52,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:24:52,612 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/Problem12_label07.c[1203,1216] [2024-11-09 19:24:53,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:24:53,085 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:24:53,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53 WrapperNode [2024-11-09 19:24:53,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:24:53,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:24:53,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:24:53,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:24:53,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,398 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-09 19:24:53,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:24:53,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:24:53,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:24:53,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:24:53,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,717 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 19:24:53,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,892 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:24:53,982 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:24:53,982 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:24:53,982 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:24:53,983 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (1/1) ... [2024-11-09 19:24:53,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:24:54,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:54,014 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 19:24:54,016 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 19:24:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:24:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:24:54,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:24:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:24:54,119 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:24:54,121 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:24:59,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:24:59,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-09 19:24:59,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:24:59,685 INFO L? ?]: Removed 2039 outVars from TransFormulas that were not future-live. [2024-11-09 19:24:59,685 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:24:59,723 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:24:59,723 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:24:59,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:59 BoogieIcfgContainer [2024-11-09 19:24:59,724 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:24:59,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:24:59,726 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:24:59,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:24:59,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:24:51" (1/3) ... [2024-11-09 19:24:59,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c6b633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:59, skipping insertion in model container [2024-11-09 19:24:59,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:53" (2/3) ... [2024-11-09 19:24:59,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c6b633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:59, skipping insertion in model container [2024-11-09 19:24:59,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:59" (3/3) ... [2024-11-09 19:24:59,734 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label07.c [2024-11-09 19:24:59,750 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:24:59,751 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:24:59,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:24:59,850 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;@3257ff7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:24:59,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:24:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 2.744810744810745) internal successors, (2248), 820 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states 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 19:24:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 19:24:59,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:59,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:59,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:59,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:59,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1302467960, now seen corresponding path program 1 times [2024-11-09 19:24:59,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:59,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050308865] [2024-11-09 19:24:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:59,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:00,087 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 19:25:00,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:00,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050308865] [2024-11-09 19:25:00,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050308865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:00,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:00,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:25:00,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548620677] [2024-11-09 19:25:00,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:00,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:00,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:00,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:00,131 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 2.744810744810745) internal successors, (2248), 820 states have internal predecessors, (2248), 0 states have call successors, (0), 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 19:25:04,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:04,783 INFO L93 Difference]: Finished difference Result 2394 states and 6675 transitions. [2024-11-09 19:25:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:04,785 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 19:25:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:04,818 INFO L225 Difference]: With dead ends: 2394 [2024-11-09 19:25:04,818 INFO L226 Difference]: Without dead ends: 1509 [2024-11-09 19:25:04,825 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 19:25:04,827 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 1571 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 4568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:04,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 160 Invalid, 4568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:25:04,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-09 19:25:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-09 19:25:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.746021220159151) internal successors, (4141), 1508 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states 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 19:25:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4141 transitions. [2024-11-09 19:25:04,969 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4141 transitions. Word has length 8 [2024-11-09 19:25:04,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:04,969 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 4141 transitions. [2024-11-09 19:25:04,970 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 19:25:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4141 transitions. [2024-11-09 19:25:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 19:25:04,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:04,973 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] [2024-11-09 19:25:04,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:25:04,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:04,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:04,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1746128132, now seen corresponding path program 1 times [2024-11-09 19:25:04,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:04,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224425808] [2024-11-09 19:25:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:04,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:05,538 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 19:25:05,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:05,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224425808] [2024-11-09 19:25:05,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224425808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:05,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:05,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:05,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328141] [2024-11-09 19:25:05,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:05,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:25:05,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:05,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:25:05,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:25:05,548 INFO L87 Difference]: Start difference. First operand 1509 states and 4141 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 19:25:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:13,175 INFO L93 Difference]: Finished difference Result 5272 states and 14437 transitions. [2024-11-09 19:25:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:25:13,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-09 19:25:13,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:13,195 INFO L225 Difference]: With dead ends: 5272 [2024-11-09 19:25:13,195 INFO L226 Difference]: Without dead ends: 3765 [2024-11-09 19:25:13,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:25:13,200 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 4218 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7874 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4218 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 9022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 7874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:13,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4218 Valid, 718 Invalid, 9022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 7874 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-09 19:25:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2024-11-09 19:25:13,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3765. [2024-11-09 19:25:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3764 states have (on average 2.47422954303932) internal successors, (9313), 3764 states have internal predecessors, (9313), 0 states have call successors, (0), 0 states 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 19:25:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 9313 transitions. [2024-11-09 19:25:13,290 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 9313 transitions. Word has length 78 [2024-11-09 19:25:13,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:13,291 INFO L471 AbstractCegarLoop]: Abstraction has 3765 states and 9313 transitions. [2024-11-09 19:25:13,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 19:25:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 9313 transitions. [2024-11-09 19:25:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 19:25:13,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:13,296 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 19:25:13,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:25:13,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:13,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:13,297 INFO L85 PathProgramCache]: Analyzing trace with hash -851017674, now seen corresponding path program 1 times [2024-11-09 19:25:13,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:13,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715710169] [2024-11-09 19:25:13,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:13,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:13,429 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 19:25:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:13,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715710169] [2024-11-09 19:25:13,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715710169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:13,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:13,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:13,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778854053] [2024-11-09 19:25:13,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:13,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:13,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:13,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:13,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:13,433 INFO L87 Difference]: Start difference. First operand 3765 states and 9313 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 19:25:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:17,050 INFO L93 Difference]: Finished difference Result 10536 states and 26495 transitions. [2024-11-09 19:25:17,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 19:25:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:17,081 INFO L225 Difference]: With dead ends: 10536 [2024-11-09 19:25:17,082 INFO L226 Difference]: Without dead ends: 6773 [2024-11-09 19:25:17,089 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 19:25:17,090 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 1464 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3679 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 3679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:17,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1663 Invalid, 4425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 3679 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 19:25:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-11-09 19:25:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6773. [2024-11-09 19:25:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6773 states, 6772 states have (on average 2.439013585351447) internal successors, (16517), 6772 states have internal predecessors, (16517), 0 states have call successors, (0), 0 states 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 19:25:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6773 states to 6773 states and 16517 transitions. [2024-11-09 19:25:17,230 INFO L78 Accepts]: Start accepts. Automaton has 6773 states and 16517 transitions. Word has length 80 [2024-11-09 19:25:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:17,230 INFO L471 AbstractCegarLoop]: Abstraction has 6773 states and 16517 transitions. [2024-11-09 19:25:17,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 19:25:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 6773 states and 16517 transitions. [2024-11-09 19:25:17,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 19:25:17,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:17,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:17,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:25:17,238 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:17,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:17,238 INFO L85 PathProgramCache]: Analyzing trace with hash 123928982, now seen corresponding path program 1 times [2024-11-09 19:25:17,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:17,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846588005] [2024-11-09 19:25:17,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:17,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:25:17,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:17,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846588005] [2024-11-09 19:25:17,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846588005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:17,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:17,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590644252] [2024-11-09 19:25:17,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:17,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:25:17,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:25:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:25:17,681 INFO L87 Difference]: Start difference. First operand 6773 states and 16517 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 19:25:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:22,338 INFO L93 Difference]: Finished difference Result 17342 states and 42366 transitions. [2024-11-09 19:25:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:25:22,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-11-09 19:25:22,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:22,376 INFO L225 Difference]: With dead ends: 17342 [2024-11-09 19:25:22,376 INFO L226 Difference]: Without dead ends: 10533 [2024-11-09 19:25:22,386 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 19:25:22,388 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 1368 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5844 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 6477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 5844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:22,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 718 Invalid, 6477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 5844 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:25:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10533 states. [2024-11-09 19:25:22,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10533 to 9781. [2024-11-09 19:25:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9780 states have (on average 2.2805725971370143) internal successors, (22304), 9780 states have internal predecessors, (22304), 0 states have call successors, (0), 0 states 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 19:25:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 22304 transitions. [2024-11-09 19:25:22,642 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 22304 transitions. Word has length 162 [2024-11-09 19:25:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:22,643 INFO L471 AbstractCegarLoop]: Abstraction has 9781 states and 22304 transitions. [2024-11-09 19:25:22,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states 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 19:25:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 22304 transitions. [2024-11-09 19:25:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-09 19:25:22,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:22,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:22,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:25:22,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:22,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -619826940, now seen corresponding path program 1 times [2024-11-09 19:25:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695052210] [2024-11-09 19:25:22,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:22,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-09 19:25:22,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695052210] [2024-11-09 19:25:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695052210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:22,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:22,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:25:22,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090681612] [2024-11-09 19:25:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:22,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:22,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:22,889 INFO L87 Difference]: Start difference. First operand 9781 states and 22304 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 19:25:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:26,615 INFO L93 Difference]: Finished difference Result 25579 states and 59483 transitions. [2024-11-09 19:25:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:26,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 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 232 [2024-11-09 19:25:26,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:26,652 INFO L225 Difference]: With dead ends: 25579 [2024-11-09 19:25:26,653 INFO L226 Difference]: Without dead ends: 15800 [2024-11-09 19:25:26,664 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 19:25:26,665 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 1529 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 4135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:26,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 317 Invalid, 4135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:25:26,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15800 states. [2024-11-09 19:25:26,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15800 to 13541. [2024-11-09 19:25:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13541 states, 13540 states have (on average 2.277178729689808) internal successors, (30833), 13540 states have internal predecessors, (30833), 0 states have call successors, (0), 0 states 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 19:25:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 30833 transitions. [2024-11-09 19:25:26,909 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 30833 transitions. Word has length 232 [2024-11-09 19:25:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:26,910 INFO L471 AbstractCegarLoop]: Abstraction has 13541 states and 30833 transitions. [2024-11-09 19:25:26,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 19:25:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 30833 transitions. [2024-11-09 19:25:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-09 19:25:26,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:26,915 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:26,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:25:26,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:26,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:26,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1540057136, now seen corresponding path program 1 times [2024-11-09 19:25:26,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:26,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890899774] [2024-11-09 19:25:26,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:26,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:25:27,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:27,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890899774] [2024-11-09 19:25:27,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890899774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:27,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:27,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:27,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691598711] [2024-11-09 19:25:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:27,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:27,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:27,163 INFO L87 Difference]: Start difference. First operand 13541 states and 30833 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 19:25:30,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:30,923 INFO L93 Difference]: Finished difference Result 33848 states and 77689 transitions. [2024-11-09 19:25:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:30,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 260 [2024-11-09 19:25:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:30,969 INFO L225 Difference]: With dead ends: 33848 [2024-11-09 19:25:30,969 INFO L226 Difference]: Without dead ends: 20309 [2024-11-09 19:25:30,985 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 19:25:30,988 INFO L432 NwaCegarLoop]: 1892 mSDtfsCounter, 1336 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 4355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:30,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 1900 Invalid, 4355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:25:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20309 states. [2024-11-09 19:25:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20309 to 20309. [2024-11-09 19:25:31,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20309 states, 20308 states have (on average 2.261227102619657) internal successors, (45921), 20308 states have internal predecessors, (45921), 0 states have call successors, (0), 0 states 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 19:25:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20309 states to 20309 states and 45921 transitions. [2024-11-09 19:25:31,293 INFO L78 Accepts]: Start accepts. Automaton has 20309 states and 45921 transitions. Word has length 260 [2024-11-09 19:25:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:31,293 INFO L471 AbstractCegarLoop]: Abstraction has 20309 states and 45921 transitions. [2024-11-09 19:25:31,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 19:25:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 20309 states and 45921 transitions. [2024-11-09 19:25:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-09 19:25:31,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:31,297 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, 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 19:25:31,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:25:31,297 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:31,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:31,298 INFO L85 PathProgramCache]: Analyzing trace with hash 119242660, now seen corresponding path program 1 times [2024-11-09 19:25:31,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:31,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97199] [2024-11-09 19:25:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:31,800 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 51 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:25:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97199] [2024-11-09 19:25:31,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:25:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588784208] [2024-11-09 19:25:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:31,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:25:31,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:25:31,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:25:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:31,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:25:31,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:25:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-09 19:25:32,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:25:32,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588784208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:32,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:25:32,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-09 19:25:32,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388441629] [2024-11-09 19:25:32,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:32,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:32,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:32,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:32,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:25:32,349 INFO L87 Difference]: Start difference. First operand 20309 states and 45921 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 19:25:36,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:36,306 INFO L93 Difference]: Finished difference Result 50392 states and 114186 transitions. [2024-11-09 19:25:36,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:36,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 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 264 [2024-11-09 19:25:36,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:36,369 INFO L225 Difference]: With dead ends: 50392 [2024-11-09 19:25:36,369 INFO L226 Difference]: Without dead ends: 30085 [2024-11-09 19:25:36,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:25:36,391 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1351 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 4141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:36,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 499 Invalid, 4141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 3361 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:25:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30085 states. [2024-11-09 19:25:36,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30085 to 27077. [2024-11-09 19:25:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27077 states, 27076 states have (on average 2.113716944895849) internal successors, (57231), 27076 states have internal predecessors, (57231), 0 states have call successors, (0), 0 states 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 19:25:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27077 states to 27077 states and 57231 transitions. [2024-11-09 19:25:36,883 INFO L78 Accepts]: Start accepts. Automaton has 27077 states and 57231 transitions. Word has length 264 [2024-11-09 19:25:36,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:36,884 INFO L471 AbstractCegarLoop]: Abstraction has 27077 states and 57231 transitions. [2024-11-09 19:25:36,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 19:25:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 27077 states and 57231 transitions. [2024-11-09 19:25:36,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-09 19:25:36,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:36,890 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, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:25:36,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:25:37,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:37,095 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:37,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:37,096 INFO L85 PathProgramCache]: Analyzing trace with hash 255556950, now seen corresponding path program 1 times [2024-11-09 19:25:37,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:37,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079119180] [2024-11-09 19:25:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:37,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-09 19:25:37,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:37,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079119180] [2024-11-09 19:25:37,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079119180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:37,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:37,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:37,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68700115] [2024-11-09 19:25:37,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:37,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:37,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:37,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:37,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:37,337 INFO L87 Difference]: Start difference. First operand 27077 states and 57231 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 19:25:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:41,243 INFO L93 Difference]: Finished difference Result 54152 states and 114460 transitions. [2024-11-09 19:25:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 340 [2024-11-09 19:25:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:41,287 INFO L225 Difference]: With dead ends: 54152 [2024-11-09 19:25:41,287 INFO L226 Difference]: Without dead ends: 27077 [2024-11-09 19:25:41,305 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 19:25:41,306 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1365 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3755 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 4305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 3755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:41,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 144 Invalid, 4305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 3755 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:25:41,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27077 states. [2024-11-09 19:25:41,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27077 to 27077. [2024-11-09 19:25:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27077 states, 27076 states have (on average 2.1032648840301373) internal successors, (56948), 27076 states have internal predecessors, (56948), 0 states have call successors, (0), 0 states 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 19:25:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27077 states to 27077 states and 56948 transitions. [2024-11-09 19:25:41,653 INFO L78 Accepts]: Start accepts. Automaton has 27077 states and 56948 transitions. Word has length 340 [2024-11-09 19:25:41,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:41,654 INFO L471 AbstractCegarLoop]: Abstraction has 27077 states and 56948 transitions. [2024-11-09 19:25:41,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states 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 19:25:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 27077 states and 56948 transitions. [2024-11-09 19:25:41,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-09 19:25:41,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:41,660 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, 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] [2024-11-09 19:25:41,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:25:41,661 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:41,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash 796638200, now seen corresponding path program 1 times [2024-11-09 19:25:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:41,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155625349] [2024-11-09 19:25:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:41,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 56 proven. 195 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 19:25:42,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155625349] [2024-11-09 19:25:42,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155625349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:25:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325080100] [2024-11-09 19:25:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:42,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:42,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:25:42,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:25:42,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:25:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:42,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:25:42,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:25:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 19:25:42,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:25:42,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325080100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:42,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:25:42,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 19:25:42,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173416750] [2024-11-09 19:25:42,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:42,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:42,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:42,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:25:42,520 INFO L87 Difference]: Start difference. First operand 27077 states and 56948 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 19:25:46,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:46,443 INFO L93 Difference]: Finished difference Result 75208 states and 159040 transitions. [2024-11-09 19:25:46,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:46,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 350 [2024-11-09 19:25:46,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:46,516 INFO L225 Difference]: With dead ends: 75208 [2024-11-09 19:25:46,517 INFO L226 Difference]: Without dead ends: 48133 [2024-11-09 19:25:46,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:25:46,545 INFO L432 NwaCegarLoop]: 1724 mSDtfsCounter, 1374 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:46,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1732 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 3698 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:25:46,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48133 states. [2024-11-09 19:25:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48133 to 48133. [2024-11-09 19:25:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48133 states, 48132 states have (on average 2.107163633341644) internal successors, (101422), 48132 states have internal predecessors, (101422), 0 states have call successors, (0), 0 states 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 19:25:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48133 states to 48133 states and 101422 transitions. [2024-11-09 19:25:47,185 INFO L78 Accepts]: Start accepts. Automaton has 48133 states and 101422 transitions. Word has length 350 [2024-11-09 19:25:47,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:47,186 INFO L471 AbstractCegarLoop]: Abstraction has 48133 states and 101422 transitions. [2024-11-09 19:25:47,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states 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 19:25:47,186 INFO L276 IsEmpty]: Start isEmpty. Operand 48133 states and 101422 transitions. [2024-11-09 19:25:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-09 19:25:47,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:47,193 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:47,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:25:47,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 19:25:47,394 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:47,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1820873926, now seen corresponding path program 1 times [2024-11-09 19:25:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:47,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596352486] [2024-11-09 19:25:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:47,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 19:25:47,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:47,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596352486] [2024-11-09 19:25:47,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596352486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:47,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:47,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:47,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230776236] [2024-11-09 19:25:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:47,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:47,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:47,618 INFO L87 Difference]: Start difference. First operand 48133 states and 101422 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 19:25:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:51,902 INFO L93 Difference]: Finished difference Result 96264 states and 202842 transitions. [2024-11-09 19:25:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:51,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 387 [2024-11-09 19:25:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:51,960 INFO L225 Difference]: With dead ends: 96264 [2024-11-09 19:25:51,960 INFO L226 Difference]: Without dead ends: 48133 [2024-11-09 19:25:51,982 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 19:25:51,983 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1415 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3613 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 4369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 3613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:51,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 108 Invalid, 4369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [756 Valid, 3613 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:25:52,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48133 states. [2024-11-09 19:25:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48133 to 47381. [2024-11-09 19:25:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47381 states, 47380 states have (on average 2.103883495145631) internal successors, (99682), 47380 states have internal predecessors, (99682), 0 states have call successors, (0), 0 states 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 19:25:52,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47381 states to 47381 states and 99682 transitions. [2024-11-09 19:25:52,899 INFO L78 Accepts]: Start accepts. Automaton has 47381 states and 99682 transitions. Word has length 387 [2024-11-09 19:25:52,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:52,900 INFO L471 AbstractCegarLoop]: Abstraction has 47381 states and 99682 transitions. [2024-11-09 19:25:52,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states 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 19:25:52,900 INFO L276 IsEmpty]: Start isEmpty. Operand 47381 states and 99682 transitions. [2024-11-09 19:25:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-09 19:25:52,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:52,906 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:52,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:25:52,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:52,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:52,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1004691024, now seen corresponding path program 1 times [2024-11-09 19:25:52,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:52,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406695923] [2024-11-09 19:25:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 19:25:53,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:53,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406695923] [2024-11-09 19:25:53,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406695923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:53,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:53,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:53,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362893985] [2024-11-09 19:25:53,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:53,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:53,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:53,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:53,427 INFO L87 Difference]: Start difference. First operand 47381 states and 99682 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 19:25:57,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:57,744 INFO L93 Difference]: Finished difference Result 125592 states and 265109 transitions. [2024-11-09 19:25:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:57,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 392 [2024-11-09 19:25:57,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:57,858 INFO L225 Difference]: With dead ends: 125592 [2024-11-09 19:25:57,858 INFO L226 Difference]: Without dead ends: 78213 [2024-11-09 19:25:57,885 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 19:25:57,886 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 1430 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3562 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 4293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 3562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:57,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 318 Invalid, 4293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 3562 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 19:25:57,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78213 states. [2024-11-09 19:25:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78213 to 77461. [2024-11-09 19:25:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77461 states, 77460 states have (on average 2.0716111541440743) internal successors, (160467), 77460 states have internal predecessors, (160467), 0 states have call successors, (0), 0 states 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 19:25:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77461 states to 77461 states and 160467 transitions. [2024-11-09 19:25:59,468 INFO L78 Accepts]: Start accepts. Automaton has 77461 states and 160467 transitions. Word has length 392 [2024-11-09 19:25:59,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:59,468 INFO L471 AbstractCegarLoop]: Abstraction has 77461 states and 160467 transitions. [2024-11-09 19:25:59,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 19:25:59,469 INFO L276 IsEmpty]: Start isEmpty. Operand 77461 states and 160467 transitions. [2024-11-09 19:25:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-09 19:25:59,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:59,481 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:59,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:25:59,482 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:59,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:59,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1293192322, now seen corresponding path program 1 times [2024-11-09 19:25:59,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:59,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115256247] [2024-11-09 19:25:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:59,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:26:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 19:26:00,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:26:00,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115256247] [2024-11-09 19:26:00,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115256247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:26:00,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:26:00,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:26:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135098793] [2024-11-09 19:26:00,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:26:00,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:26:00,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:26:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:26:00,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:26:00,143 INFO L87 Difference]: Start difference. First operand 77461 states and 160467 transitions. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 19:26:04,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:26:04,547 INFO L93 Difference]: Finished difference Result 160184 states and 331078 transitions. [2024-11-09 19:26:04,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:26:04,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 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 496 [2024-11-09 19:26:04,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:26:04,915 INFO L225 Difference]: With dead ends: 160184 [2024-11-09 19:26:04,916 INFO L226 Difference]: Without dead ends: 82725 [2024-11-09 19:26:04,954 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 19:26:04,955 INFO L432 NwaCegarLoop]: 1862 mSDtfsCounter, 1272 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3449 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 4063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 3449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:26:04,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 1870 Invalid, 4063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 3449 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:26:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82725 states. [2024-11-09 19:26:05,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82725 to 76709. [2024-11-09 19:26:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76709 states, 76708 states have (on average 2.0184726495280807) internal successors, (154833), 76708 states have internal predecessors, (154833), 0 states have call successors, (0), 0 states 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 19:26:06,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76709 states to 76709 states and 154833 transitions. [2024-11-09 19:26:06,113 INFO L78 Accepts]: Start accepts. Automaton has 76709 states and 154833 transitions. Word has length 496 [2024-11-09 19:26:06,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:26:06,114 INFO L471 AbstractCegarLoop]: Abstraction has 76709 states and 154833 transitions. [2024-11-09 19:26:06,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 19:26:06,114 INFO L276 IsEmpty]: Start isEmpty. Operand 76709 states and 154833 transitions. [2024-11-09 19:26:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2024-11-09 19:26:06,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:26:06,127 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:26:06,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:26:06,128 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:26:06,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:26:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1168433838, now seen corresponding path program 1 times [2024-11-09 19:26:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:26:06,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744771709] [2024-11-09 19:26:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:26:06,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:26:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat