./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label01.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_label01.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 65de5b720550425739629c673edc29b7a854e52f56e69a2e107d2cca3ffb2713 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:24:15,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:24:16,063 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:24:16,068 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:24:16,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:24:16,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:24:16,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:24:16,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:24:16,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:24:16,094 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:24:16,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:24:16,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:24:16,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:24:16,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:24:16,096 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:24:16,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:24:16,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:24:16,096 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:24:16,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:24:16,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:24:16,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:24:16,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:24:16,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:24:16,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:24:16,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:24:16,104 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:24:16,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:24:16,105 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:24:16,105 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:24:16,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:24:16,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:24:16,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:24:16,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:24:16,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:24:16,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:24:16,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:24:16,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:24:16,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:24:16,106 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:24:16,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:24:16,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:24:16,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:24:16,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65de5b720550425739629c673edc29b7a854e52f56e69a2e107d2cca3ffb2713 [2024-11-09 19:24:16,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:24:16,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:24:16,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:24:16,442 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:24:16,442 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:24:16,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label01.c [2024-11-09 19:24:17,794 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:24:18,172 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:24:18,174 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label01.c [2024-11-09 19:24:18,202 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ddf5cbd/9f4c62d1c3c942c6a92d5c2ec5be4cc3/FLAG65b5f6e07 [2024-11-09 19:24:18,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46ddf5cbd/9f4c62d1c3c942c6a92d5c2ec5be4cc3 [2024-11-09 19:24:18,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:24:18,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:24:18,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:24:18,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:24:18,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:24:18,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:18" (1/1) ... [2024-11-09 19:24:18,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6193b225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:18, skipping insertion in model container [2024-11-09 19:24:18,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:18" (1/1) ... [2024-11-09 19:24:18,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:24:18,648 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_label01.c[5916,5929] [2024-11-09 19:24:19,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:24:19,284 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:24:19,301 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_label01.c[5916,5929] [2024-11-09 19:24:19,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:24:19,600 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:24:19,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19 WrapperNode [2024-11-09 19:24:19,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:24:19,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:24:19,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:24:19,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:24:19,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:19,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:19,816 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-09 19:24:19,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:24:19,817 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:24:19,817 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:24:19,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:24:19,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:19,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:19,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,015 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 19:24:20,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,109 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:24:20,273 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:24:20,273 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:24:20,274 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:24:20,275 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (1/1) ... [2024-11-09 19:24:20,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:24:20,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:20,308 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 19:24:20,311 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 19:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:24:20,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:24:20,404 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:24:20,406 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:24:24,378 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:24:24,379 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-09 19:24:24,379 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:24:24,733 INFO L? ?]: Removed 2039 outVars from TransFormulas that were not future-live. [2024-11-09 19:24:24,733 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:24:24,766 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:24:24,766 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:24:24,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:24 BoogieIcfgContainer [2024-11-09 19:24:24,770 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:24:24,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:24:24,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:24:24,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:24:24,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:24:18" (1/3) ... [2024-11-09 19:24:24,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f21d350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:24, skipping insertion in model container [2024-11-09 19:24:24,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:19" (2/3) ... [2024-11-09 19:24:24,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f21d350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:24, skipping insertion in model container [2024-11-09 19:24:24,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:24" (3/3) ... [2024-11-09 19:24:24,779 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label01.c [2024-11-09 19:24:24,800 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:24:24,804 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:24:24,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:24:24,902 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;@455fc464, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:24:24,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:24:24,907 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 19:24:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 19:24:24,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:24,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:24,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:24,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -240837410, now seen corresponding path program 1 times [2024-11-09 19:24:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:24,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997255090] [2024-11-09 19:24:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:25,216 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 19:24:25,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:25,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997255090] [2024-11-09 19:24:25,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997255090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:25,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:25,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:24:25,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163533782] [2024-11-09 19:24:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:25,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:25,240 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 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 19:24:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:29,551 INFO L93 Difference]: Finished difference Result 2394 states and 6675 transitions. [2024-11-09 19:24:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-09 19:24:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:29,575 INFO L225 Difference]: With dead ends: 2394 [2024-11-09 19:24:29,575 INFO L226 Difference]: Without dead ends: 1509 [2024-11-09 19:24:29,578 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 19:24:29,581 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 1492 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 4755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:29,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 106 Invalid, 4755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 3697 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:24:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-09 19:24:29,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-09 19:24:29,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.769893899204244) internal successors, (4177), 1508 states have internal predecessors, (4177), 0 states have call successors, (0), 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 19:24:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4177 transitions. [2024-11-09 19:24:29,675 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4177 transitions. Word has length 49 [2024-11-09 19:24:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:29,675 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 4177 transitions. [2024-11-09 19:24:29,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 19:24:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4177 transitions. [2024-11-09 19:24:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 19:24:29,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:29,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:24:29,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:24:29,682 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:29,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:29,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1571170281, now seen corresponding path program 1 times [2024-11-09 19:24:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:29,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025417878] [2024-11-09 19:24:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:29,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:29,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025417878] [2024-11-09 19:24:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025417878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:29,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:29,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:24:29,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762235351] [2024-11-09 19:24:29,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:29,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:29,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:29,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:29,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:29,900 INFO L87 Difference]: Start difference. First operand 1509 states and 4177 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 19:24:33,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:33,671 INFO L93 Difference]: Finished difference Result 4523 states and 12527 transitions. [2024-11-09 19:24:33,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:33,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-09 19:24:33,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:33,682 INFO L225 Difference]: With dead ends: 4523 [2024-11-09 19:24:33,682 INFO L226 Difference]: Without dead ends: 3016 [2024-11-09 19:24:33,683 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 19:24:33,684 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 1599 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 4219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:33,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 358 Invalid, 4219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:24:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-09 19:24:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 3013. [2024-11-09 19:24:33,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 2.555112881806109) internal successors, (7696), 3012 states have internal predecessors, (7696), 0 states have call successors, (0), 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 19:24:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 7696 transitions. [2024-11-09 19:24:33,766 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 7696 transitions. Word has length 123 [2024-11-09 19:24:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:33,766 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 7696 transitions. [2024-11-09 19:24:33,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 19:24:33,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 7696 transitions. [2024-11-09 19:24:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 19:24:33,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:33,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:24:33,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:24:33,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:33,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:33,770 INFO L85 PathProgramCache]: Analyzing trace with hash 668809451, now seen corresponding path program 1 times [2024-11-09 19:24:33,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:33,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593185285] [2024-11-09 19:24:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:33,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593185285] [2024-11-09 19:24:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593185285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:34,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:34,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:34,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009669709] [2024-11-09 19:24:34,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:34,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:34,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:34,026 INFO L87 Difference]: Start difference. First operand 3013 states and 7696 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:24:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:40,591 INFO L93 Difference]: Finished difference Result 8280 states and 20922 transitions. [2024-11-09 19:24:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-09 19:24:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:40,608 INFO L225 Difference]: With dead ends: 8280 [2024-11-09 19:24:40,609 INFO L226 Difference]: Without dead ends: 5269 [2024-11-09 19:24:40,612 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 19:24:40,613 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 4197 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7718 mSolverCounterSat, 851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 8569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 851 IncrementalHoareTripleChecker+Valid, 7718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:40,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4197 Valid, 359 Invalid, 8569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [851 Valid, 7718 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-09 19:24:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2024-11-09 19:24:40,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 5269. [2024-11-09 19:24:40,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5269 states, 5268 states have (on average 2.4130599848139713) internal successors, (12712), 5268 states have internal predecessors, (12712), 0 states have call successors, (0), 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 19:24:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 12712 transitions. [2024-11-09 19:24:40,718 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 12712 transitions. Word has length 136 [2024-11-09 19:24:40,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:40,723 INFO L471 AbstractCegarLoop]: Abstraction has 5269 states and 12712 transitions. [2024-11-09 19:24:40,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:24:40,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 12712 transitions. [2024-11-09 19:24:40,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 19:24:40,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:40,728 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:24:40,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:24:40,729 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:40,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:40,729 INFO L85 PathProgramCache]: Analyzing trace with hash -490903755, now seen corresponding path program 1 times [2024-11-09 19:24:40,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:40,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829261924] [2024-11-09 19:24:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:40,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 19:24:41,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829261924] [2024-11-09 19:24:41,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829261924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:24:41,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359069422] [2024-11-09 19:24:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:41,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:24:41,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:41,130 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 19:24:41,130 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 19:24:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:41,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:24:41,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:24:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 19:24:41,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:24:41,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359069422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:41,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:24:41,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 19:24:41,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540701764] [2024-11-09 19:24:41,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:41,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:41,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:41,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:41,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:24:41,522 INFO L87 Difference]: Start difference. First operand 5269 states and 12712 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 19:24:45,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:45,348 INFO L93 Difference]: Finished difference Result 14296 states and 35254 transitions. [2024-11-09 19:24:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:45,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 191 [2024-11-09 19:24:45,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:45,374 INFO L225 Difference]: With dead ends: 14296 [2024-11-09 19:24:45,375 INFO L226 Difference]: Without dead ends: 9781 [2024-11-09 19:24:45,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:24:45,379 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 1302 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3957 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 3957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:45,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 647 Invalid, 4462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 3957 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:24:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2024-11-09 19:24:45,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 8277. [2024-11-09 19:24:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8277 states, 8276 states have (on average 2.4507008216529726) internal successors, (20282), 8276 states have internal predecessors, (20282), 0 states have call successors, (0), 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 19:24:45,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8277 states to 8277 states and 20282 transitions. [2024-11-09 19:24:45,488 INFO L78 Accepts]: Start accepts. Automaton has 8277 states and 20282 transitions. Word has length 191 [2024-11-09 19:24:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:45,489 INFO L471 AbstractCegarLoop]: Abstraction has 8277 states and 20282 transitions. [2024-11-09 19:24:45,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 19:24:45,490 INFO L276 IsEmpty]: Start isEmpty. Operand 8277 states and 20282 transitions. [2024-11-09 19:24:45,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-09 19:24:45,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:45,493 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:45,507 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 19:24:45,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:24:45,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:45,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -574612347, now seen corresponding path program 1 times [2024-11-09 19:24:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:45,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212003793] [2024-11-09 19:24:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:45,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-09 19:24:45,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:45,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212003793] [2024-11-09 19:24:45,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212003793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:45,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:45,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:45,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876507078] [2024-11-09 19:24:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:45,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:45,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:45,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:45,956 INFO L87 Difference]: Start difference. First operand 8277 states and 20282 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:24:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:50,587 INFO L93 Difference]: Finished difference Result 18849 states and 46075 transitions. [2024-11-09 19:24:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:50,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 273 [2024-11-09 19:24:50,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:50,606 INFO L225 Difference]: With dead ends: 18849 [2024-11-09 19:24:50,606 INFO L226 Difference]: Without dead ends: 11288 [2024-11-09 19:24:50,614 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 19:24:50,614 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 1371 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5846 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 6173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 5846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:50,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 723 Invalid, 6173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 5846 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:24:50,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11288 states. [2024-11-09 19:24:50,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11288 to 11285. [2024-11-09 19:24:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11285 states, 11284 states have (on average 2.313364055299539) internal successors, (26104), 11284 states have internal predecessors, (26104), 0 states have call successors, (0), 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 19:24:50,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11285 states to 11285 states and 26104 transitions. [2024-11-09 19:24:50,891 INFO L78 Accepts]: Start accepts. Automaton has 11285 states and 26104 transitions. Word has length 273 [2024-11-09 19:24:50,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:50,891 INFO L471 AbstractCegarLoop]: Abstraction has 11285 states and 26104 transitions. [2024-11-09 19:24:50,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:24:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 11285 states and 26104 transitions. [2024-11-09 19:24:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-09 19:24:50,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:50,896 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-09 19:24:50,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:24:50,896 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:50,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:50,897 INFO L85 PathProgramCache]: Analyzing trace with hash -995535593, now seen corresponding path program 1 times [2024-11-09 19:24:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:50,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901872504] [2024-11-09 19:24:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:50,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 242 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 19:24:51,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:51,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901872504] [2024-11-09 19:24:51,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901872504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:24:51,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597384696] [2024-11-09 19:24:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:51,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:24:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:51,278 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 19:24:51,279 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 19:24:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:51,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:24:51,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:24:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 19:24:51,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:24:51,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597384696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:51,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:24:51,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-09 19:24:51,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925203693] [2024-11-09 19:24:51,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:51,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:51,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:51,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:24:51,509 INFO L87 Difference]: Start difference. First operand 11285 states and 26104 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:24:54,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:54,798 INFO L93 Difference]: Finished difference Result 26328 states and 62499 transitions. [2024-11-09 19:24:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:54,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 343 [2024-11-09 19:24:54,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:54,827 INFO L225 Difference]: With dead ends: 26328 [2024-11-09 19:24:54,828 INFO L226 Difference]: Without dead ends: 15797 [2024-11-09 19:24:54,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:24:54,841 INFO L432 NwaCegarLoop]: 1792 mSDtfsCounter, 1507 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 4135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:54,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1802 Invalid, 4135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 19:24:54,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15797 states. [2024-11-09 19:24:55,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15797 to 15797. [2024-11-09 19:24:55,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15797 states, 15796 states have (on average 2.284185869840466) internal successors, (36081), 15796 states have internal predecessors, (36081), 0 states have call successors, (0), 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 19:24:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15797 states to 15797 states and 36081 transitions. [2024-11-09 19:24:55,041 INFO L78 Accepts]: Start accepts. Automaton has 15797 states and 36081 transitions. Word has length 343 [2024-11-09 19:24:55,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:55,042 INFO L471 AbstractCegarLoop]: Abstraction has 15797 states and 36081 transitions. [2024-11-09 19:24:55,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:24:55,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15797 states and 36081 transitions. [2024-11-09 19:24:55,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-09 19:24:55,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:55,050 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:24:55,066 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 19:24:55,251 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,SelfDestructingSolverStorable5 [2024-11-09 19:24:55,251 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:55,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:55,252 INFO L85 PathProgramCache]: Analyzing trace with hash -661319587, now seen corresponding path program 1 times [2024-11-09 19:24:55,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:55,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322739996] [2024-11-09 19:24:55,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 302 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 19:24:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322739996] [2024-11-09 19:24:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322739996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:24:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889297876] [2024-11-09 19:24:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:55,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:24:55,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:55,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:24:55,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:24:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:55,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:24:55,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:24:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-09 19:24:56,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:24:56,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889297876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:56,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:24:56,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 19:24:56,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812341539] [2024-11-09 19:24:56,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:56,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:56,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:56,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:56,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:24:56,102 INFO L87 Difference]: Start difference. First operand 15797 states and 36081 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 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 19:24:59,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:59,600 INFO L93 Difference]: Finished difference Result 39112 states and 89511 transitions. [2024-11-09 19:24:59,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:59,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 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 473 [2024-11-09 19:24:59,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:59,635 INFO L225 Difference]: With dead ends: 39112 [2024-11-09 19:24:59,636 INFO L226 Difference]: Without dead ends: 24069 [2024-11-09 19:24:59,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:24:59,652 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 1378 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3333 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 3333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:59,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 430 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 3333 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 19:24:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24069 states. [2024-11-09 19:24:59,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24069 to 21061. [2024-11-09 19:24:59,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21061 states, 21060 states have (on average 2.1346153846153846) internal successors, (44955), 21060 states have internal predecessors, (44955), 0 states have call successors, (0), 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 19:24:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21061 states to 21061 states and 44955 transitions. [2024-11-09 19:24:59,890 INFO L78 Accepts]: Start accepts. Automaton has 21061 states and 44955 transitions. Word has length 473 [2024-11-09 19:24:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:59,891 INFO L471 AbstractCegarLoop]: Abstraction has 21061 states and 44955 transitions. [2024-11-09 19:24:59,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 2 states have internal predecessors, (360), 0 states have call successors, (0), 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 19:24:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 21061 states and 44955 transitions. [2024-11-09 19:25:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-09 19:25:00,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:00,014 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:00,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 19:25:00,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:00,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:00,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:00,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1751635718, now seen corresponding path program 1 times [2024-11-09 19:25:00,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:00,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462038172] [2024-11-09 19:25:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:00,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 428 proven. 110 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-09 19:25:00,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:00,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462038172] [2024-11-09 19:25:00,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462038172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:25:00,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452397538] [2024-11-09 19:25:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:00,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:00,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:25:00,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:25:00,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:25:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:01,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:25:01,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:25:01,101 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 567 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-09 19:25:01,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:25:01,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452397538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:01,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:25:01,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-09 19:25:01,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669307777] [2024-11-09 19:25:01,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:01,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:25:01,107 INFO L87 Difference]: Start difference. First operand 21061 states and 44955 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 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 19:25:04,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:04,295 INFO L93 Difference]: Finished difference Result 49640 states and 107259 transitions. [2024-11-09 19:25:04,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:04,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 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 553 [2024-11-09 19:25:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:04,361 INFO L225 Difference]: With dead ends: 49640 [2024-11-09 19:25:04,365 INFO L226 Difference]: Without dead ends: 29333 [2024-11-09 19:25:04,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:25:04,404 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 1472 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3437 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 3437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:04,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 246 Invalid, 4269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 3437 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 19:25:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29333 states. [2024-11-09 19:25:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29333 to 29333. [2024-11-09 19:25:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29333 states, 29332 states have (on average 2.12835810718669) internal successors, (62429), 29332 states have internal predecessors, (62429), 0 states have call successors, (0), 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 19:25:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29333 states to 29333 states and 62429 transitions. [2024-11-09 19:25:04,964 INFO L78 Accepts]: Start accepts. Automaton has 29333 states and 62429 transitions. Word has length 553 [2024-11-09 19:25:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:04,964 INFO L471 AbstractCegarLoop]: Abstraction has 29333 states and 62429 transitions. [2024-11-09 19:25:04,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 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 19:25:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 29333 states and 62429 transitions. [2024-11-09 19:25:04,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-09 19:25:04,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:04,994 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:05,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 19:25:05,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:05,195 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:05,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:05,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1672339308, now seen corresponding path program 1 times [2024-11-09 19:25:05,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:05,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506211215] [2024-11-09 19:25:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:05,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-09 19:25:05,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:05,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506211215] [2024-11-09 19:25:05,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506211215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:05,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:05,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:05,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796955091] [2024-11-09 19:25:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:05,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:05,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:05,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:05,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:05,808 INFO L87 Difference]: Start difference. First operand 29333 states and 62429 transitions. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 19:25:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:09,351 INFO L93 Difference]: Finished difference Result 60920 states and 129399 transitions. [2024-11-09 19:25:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:09,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 591 [2024-11-09 19:25:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:09,390 INFO L225 Difference]: With dead ends: 60920 [2024-11-09 19:25:09,390 INFO L226 Difference]: Without dead ends: 32341 [2024-11-09 19:25:09,408 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 19:25:09,409 INFO L432 NwaCegarLoop]: 1865 mSDtfsCounter, 1332 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3943 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 4261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 3943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:09,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 1873 Invalid, 4261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 3943 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-09 19:25:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32341 states. [2024-11-09 19:25:09,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32341 to 31589. [2024-11-09 19:25:09,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31589 states, 31588 states have (on average 2.1018424718247437) internal successors, (66393), 31588 states have internal predecessors, (66393), 0 states have call successors, (0), 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 19:25:09,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31589 states to 31589 states and 66393 transitions. [2024-11-09 19:25:09,760 INFO L78 Accepts]: Start accepts. Automaton has 31589 states and 66393 transitions. Word has length 591 [2024-11-09 19:25:09,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:09,760 INFO L471 AbstractCegarLoop]: Abstraction has 31589 states and 66393 transitions. [2024-11-09 19:25:09,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 19:25:09,761 INFO L276 IsEmpty]: Start isEmpty. Operand 31589 states and 66393 transitions. [2024-11-09 19:25:09,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-11-09 19:25:09,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:09,770 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:09,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:25:09,770 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:09,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:09,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1776779784, now seen corresponding path program 1 times [2024-11-09 19:25:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:09,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901195720] [2024-11-09 19:25:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 516 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-09 19:25:10,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:10,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901195720] [2024-11-09 19:25:10,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901195720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:10,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:10,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625870485] [2024-11-09 19:25:10,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:10,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:10,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:10,181 INFO L87 Difference]: Start difference. First operand 31589 states and 66393 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 19:25:13,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:13,898 INFO L93 Difference]: Finished difference Result 86488 states and 182082 transitions. [2024-11-09 19:25:13,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:13,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 595 [2024-11-09 19:25:13,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:13,963 INFO L225 Difference]: With dead ends: 86488 [2024-11-09 19:25:13,963 INFO L226 Difference]: Without dead ends: 51141 [2024-11-09 19:25:13,983 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 19:25:13,984 INFO L432 NwaCegarLoop]: 1990 mSDtfsCounter, 1260 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 4214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:13,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 2000 Invalid, 4214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 19:25:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51141 states. [2024-11-09 19:25:14,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51141 to 44373. [2024-11-09 19:25:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44373 states, 44372 states have (on average 2.066055169926981) internal successors, (91675), 44372 states have internal predecessors, (91675), 0 states have call successors, (0), 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 19:25:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44373 states to 44373 states and 91675 transitions. [2024-11-09 19:25:14,512 INFO L78 Accepts]: Start accepts. Automaton has 44373 states and 91675 transitions. Word has length 595 [2024-11-09 19:25:14,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:14,512 INFO L471 AbstractCegarLoop]: Abstraction has 44373 states and 91675 transitions. [2024-11-09 19:25:14,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 19:25:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 44373 states and 91675 transitions. [2024-11-09 19:25:14,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2024-11-09 19:25:14,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:14,525 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:14,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:25:14,525 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:14,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:14,526 INFO L85 PathProgramCache]: Analyzing trace with hash 723340206, now seen corresponding path program 1 times [2024-11-09 19:25:14,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:14,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355027101] [2024-11-09 19:25:14,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:14,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-09 19:25:15,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355027101] [2024-11-09 19:25:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355027101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:15,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:15,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:15,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715015175] [2024-11-09 19:25:15,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:15,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:15,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:15,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:15,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:15,040 INFO L87 Difference]: Start difference. First operand 44373 states and 91675 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 19:25:19,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:19,132 INFO L93 Difference]: Finished difference Result 108296 states and 225114 transitions. [2024-11-09 19:25:19,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 650 [2024-11-09 19:25:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:19,208 INFO L225 Difference]: With dead ends: 108296 [2024-11-09 19:25:19,208 INFO L226 Difference]: Without dead ends: 64677 [2024-11-09 19:25:19,226 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 19:25:19,226 INFO L432 NwaCegarLoop]: 1938 mSDtfsCounter, 1394 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3488 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 4184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 3488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:19,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 1946 Invalid, 4184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 3488 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:25:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64677 states. [2024-11-09 19:25:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64677 to 63173. [2024-11-09 19:25:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63173 states, 63172 states have (on average 2.0327360222883555) internal successors, (128412), 63172 states have internal predecessors, (128412), 0 states have call successors, (0), 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 19:25:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63173 states to 63173 states and 128412 transitions. [2024-11-09 19:25:20,139 INFO L78 Accepts]: Start accepts. Automaton has 63173 states and 128412 transitions. Word has length 650 [2024-11-09 19:25:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:20,143 INFO L471 AbstractCegarLoop]: Abstraction has 63173 states and 128412 transitions. [2024-11-09 19:25:20,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 19:25:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 63173 states and 128412 transitions. [2024-11-09 19:25:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-09 19:25:20,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:20,189 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:25:20,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:25:20,190 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:20,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1331054966, now seen corresponding path program 1 times [2024-11-09 19:25:20,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:20,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960067112] [2024-11-09 19:25:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:20,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-09 19:25:20,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:20,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960067112] [2024-11-09 19:25:20,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960067112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:20,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:20,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:20,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992711332] [2024-11-09 19:25:20,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:20,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:20,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:20,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:20,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:20,598 INFO L87 Difference]: Start difference. First operand 63173 states and 128412 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 19:25:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:24,591 INFO L93 Difference]: Finished difference Result 165448 states and 337054 transitions. [2024-11-09 19:25:24,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:24,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 677 [2024-11-09 19:25:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:24,763 INFO L225 Difference]: With dead ends: 165448 [2024-11-09 19:25:24,763 INFO L226 Difference]: Without dead ends: 103029 [2024-11-09 19:25:24,798 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 19:25:24,799 INFO L432 NwaCegarLoop]: 2018 mSDtfsCounter, 1335 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3727 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:24,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 2028 Invalid, 4244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3727 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 19:25:24,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103029 states. [2024-11-09 19:25:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103029 to 89493. [2024-11-09 19:25:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89493 states, 89492 states have (on average 2.015230411656908) internal successors, (180347), 89492 states have internal predecessors, (180347), 0 states have call successors, (0), 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 19:25:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89493 states to 89493 states and 180347 transitions. [2024-11-09 19:25:26,348 INFO L78 Accepts]: Start accepts. Automaton has 89493 states and 180347 transitions. Word has length 677 [2024-11-09 19:25:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:26,349 INFO L471 AbstractCegarLoop]: Abstraction has 89493 states and 180347 transitions. [2024-11-09 19:25:26,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 19:25:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 89493 states and 180347 transitions. [2024-11-09 19:25:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-09 19:25:26,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:26,364 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:26,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:25:26,364 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:26,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:26,365 INFO L85 PathProgramCache]: Analyzing trace with hash 91865122, now seen corresponding path program 1 times [2024-11-09 19:25:26,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:26,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004096882] [2024-11-09 19:25:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-09 19:25:26,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:26,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004096882] [2024-11-09 19:25:26,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004096882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:26,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:26,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:25:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485307315] [2024-11-09 19:25:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:26,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:25:26,812 INFO L87 Difference]: Start difference. First operand 89493 states and 180347 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 19:25:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:31,109 INFO L93 Difference]: Finished difference Result 197032 states and 399090 transitions. [2024-11-09 19:25:31,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:25:31,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 677 [2024-11-09 19:25:31,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:31,259 INFO L225 Difference]: With dead ends: 197032 [2024-11-09 19:25:31,260 INFO L226 Difference]: Without dead ends: 108293 [2024-11-09 19:25:31,304 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 19:25:31,305 INFO L432 NwaCegarLoop]: 1987 mSDtfsCounter, 1345 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3626 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 4075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 3626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:31,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 1997 Invalid, 4075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 3626 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 19:25:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108293 states. [2024-11-09 19:25:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108293 to 106037. [2024-11-09 19:25:32,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106037 states, 106036 states have (on average 2.006478931683579) internal successors, (212759), 106036 states have internal predecessors, (212759), 0 states have call successors, (0), 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 19:25:32,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106037 states to 106037 states and 212759 transitions. [2024-11-09 19:25:32,928 INFO L78 Accepts]: Start accepts. Automaton has 106037 states and 212759 transitions. Word has length 677 [2024-11-09 19:25:32,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:32,929 INFO L471 AbstractCegarLoop]: Abstraction has 106037 states and 212759 transitions. [2024-11-09 19:25:32,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 19:25:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 106037 states and 212759 transitions. [2024-11-09 19:25:32,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-09 19:25:32,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:32,952 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:32,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:25:32,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:25:32,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:25:32,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1604359638, now seen corresponding path program 1 times [2024-11-09 19:25:32,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:32,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444650342] [2024-11-09 19:25:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:32,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 814 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-09 19:25:34,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:34,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444650342] [2024-11-09 19:25:34,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444650342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:34,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:25:34,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:25:34,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547307476] [2024-11-09 19:25:34,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:34,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:25:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:25:34,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:25:34,348 INFO L87 Difference]: Start difference. First operand 106037 states and 212759 transitions. Second operand has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 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 19:25:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:25:39,624 INFO L93 Difference]: Finished difference Result 217336 states and 435768 transitions. [2024-11-09 19:25:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:25:39,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 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 725 [2024-11-09 19:25:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:25:39,761 INFO L225 Difference]: With dead ends: 217336 [2024-11-09 19:25:39,761 INFO L226 Difference]: Without dead ends: 112053 [2024-11-09 19:25:39,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 19:25:39,808 INFO L432 NwaCegarLoop]: 1672 mSDtfsCounter, 2516 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6894 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 7344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 6894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:25:39,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1689 Invalid, 7344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 6894 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-09 19:25:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112053 states. [2024-11-09 19:25:41,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112053 to 105285. [2024-11-09 19:25:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105285 states, 105284 states have (on average 1.9897705254359637) internal successors, (209491), 105284 states have internal predecessors, (209491), 0 states have call successors, (0), 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 19:25:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105285 states to 105285 states and 209491 transitions. [2024-11-09 19:25:41,290 INFO L78 Accepts]: Start accepts. Automaton has 105285 states and 209491 transitions. Word has length 725 [2024-11-09 19:25:41,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:25:41,290 INFO L471 AbstractCegarLoop]: Abstraction has 105285 states and 209491 transitions. [2024-11-09 19:25:41,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 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 19:25:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand 105285 states and 209491 transitions. [2024-11-09 19:25:41,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2024-11-09 19:25:41,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:25:41,656 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:41,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:25:41,661 INFO L396 AbstractCegarLoop]: === Iteration 15 === 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 19:25:41,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2128206212, now seen corresponding path program 1 times [2024-11-09 19:25:41,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:25:41,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168961705] [2024-11-09 19:25:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:41,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:25:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 457 proven. 363 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-09 19:25:43,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:25:43,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168961705] [2024-11-09 19:25:43,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168961705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:25:43,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114156906] [2024-11-09 19:25:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:25:43,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:25:43,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:25:43,098 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:25:43,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 19:25:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:25:43,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:25:43,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:25:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-09 19:25:43,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:25:43,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114156906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:25:43,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:25:43,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 19:25:43,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546108359] [2024-11-09 19:25:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:25:43,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:25:43,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:25:43,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:25:43,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:25:43,876 INFO L87 Difference]: Start difference. First operand 105285 states and 209491 transitions. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)