./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem19_label11.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 ce9ec331bbd0957d91f023d2cde751d43aea048fc58a1bf2a8faaac825bae047 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:27:59,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:27:59,175 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:27:59,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:27:59,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:27:59,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:27:59,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:27:59,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:27:59,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:27:59,220 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:27:59,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:27:59,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:27:59,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:27:59,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:27:59,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:27:59,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:27:59,224 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:27:59,225 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:27:59,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:27:59,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:27:59,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:27:59,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:27:59,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:27:59,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:27:59,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:27:59,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:27:59,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:27:59,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:27:59,230 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:27:59,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:27:59,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:27:59,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:27:59,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:27:59,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:27:59,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:27:59,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:27:59,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:27:59,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:27:59,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:27:59,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:27:59,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:27:59,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:27:59,235 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce9ec331bbd0957d91f023d2cde751d43aea048fc58a1bf2a8faaac825bae047 [2024-11-16 04:27:59,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:27:59,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:27:59,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:27:59,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:27:59,498 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:27:59,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label11.c [2024-11-16 04:28:00,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:28:01,559 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:28:01,560 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label11.c [2024-11-16 04:28:01,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e211906/0b20003e46734a40b62ba027b5f95f1e/FLAG35d78e45a [2024-11-16 04:28:02,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e211906/0b20003e46734a40b62ba027b5f95f1e [2024-11-16 04:28:02,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:28:02,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:28:02,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:28:02,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:28:02,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:28:02,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:28:02" (1/1) ... [2024-11-16 04:28:02,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac19381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:02, skipping insertion in model container [2024-11-16 04:28:02,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:28:02" (1/1) ... [2024-11-16 04:28:02,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:28:02,496 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/Problem19_label11.c[2490,2503] [2024-11-16 04:28:03,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:28:03,625 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:28:03,640 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/Problem19_label11.c[2490,2503] [2024-11-16 04:28:04,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:28:04,474 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:28:04,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04 WrapperNode [2024-11-16 04:28:04,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:28:04,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:28:04,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:28:04,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:28:04,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:04,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:05,398 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9430 [2024-11-16 04:28:05,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:28:05,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:28:05,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:28:05,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:28:05,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:05,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:05,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,107 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:28:06,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,738 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:28:06,740 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:28:06,741 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:28:06,741 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:28:06,742 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (1/1) ... [2024-11-16 04:28:06,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:28:06,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:28:06,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:28:06,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:28:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:28:06,884 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:28:06,886 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:28:14,212 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc calculate_output4_#t~ret14#1; [2024-11-16 04:28:14,213 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3435: havoc calculate_output2_#t~ret12#1; [2024-11-16 04:28:14,215 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1859: havoc calculate_output_#t~ret11#1; [2024-11-16 04:28:14,215 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8350: havoc calculate_output5_#t~ret15#1; [2024-11-16 04:28:14,215 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5079: havoc calculate_output3_#t~ret13#1; [2024-11-16 04:28:14,729 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-16 04:28:14,729 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:28:14,779 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:28:14,780 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:28:14,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:28:14 BoogieIcfgContainer [2024-11-16 04:28:14,782 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:28:14,784 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:28:14,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:28:14,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:28:14,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:28:02" (1/3) ... [2024-11-16 04:28:14,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79171dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:28:14, skipping insertion in model container [2024-11-16 04:28:14,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:28:04" (2/3) ... [2024-11-16 04:28:14,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79171dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:28:14, skipping insertion in model container [2024-11-16 04:28:14,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:28:14" (3/3) ... [2024-11-16 04:28:14,791 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label11.c [2024-11-16 04:28:14,808 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:28:14,809 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:28:14,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:28:14,934 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;@28d8539c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:28:14,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:28:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1749 states have (on average 1.8684962835906231) internal successors, (3268), 1750 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-16 04:28:14,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:28:14,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:28:14,951 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:28:14,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:28:14,956 INFO L85 PathProgramCache]: Analyzing trace with hash 778487721, now seen corresponding path program 1 times [2024-11-16 04:28:14,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:28:14,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522615338] [2024-11-16 04:28:14,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:14,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:28:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:28:15,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:28:15,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522615338] [2024-11-16 04:28:15,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522615338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:28:15,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:28:15,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:28:15,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201845246] [2024-11-16 04:28:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:28:15,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:28:15,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:28:15,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:28:15,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:28:15,266 INFO L87 Difference]: Start difference. First operand has 1751 states, 1749 states have (on average 1.8684962835906231) internal successors, (3268), 1750 states have internal predecessors, (3268), 0 states have call successors, (0), 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 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:21,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:28:21,861 INFO L93 Difference]: Finished difference Result 4963 states and 9404 transitions. [2024-11-16 04:28:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:28:21,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2024-11-16 04:28:21,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:28:21,893 INFO L225 Difference]: With dead ends: 4963 [2024-11-16 04:28:21,893 INFO L226 Difference]: Without dead ends: 3132 [2024-11-16 04:28:21,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:28:21,907 INFO L432 NwaCegarLoop]: 1378 mSDtfsCounter, 1610 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 4344 mSolverCounterSat, 1517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 5861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 4344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:28:21,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 1602 Invalid, 5861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1517 Valid, 4344 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-16 04:28:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2024-11-16 04:28:22,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3111. [2024-11-16 04:28:22,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3111 states, 3110 states have (on average 1.6006430868167203) internal successors, (4978), 3110 states have internal predecessors, (4978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3111 states to 3111 states and 4978 transitions. [2024-11-16 04:28:22,045 INFO L78 Accepts]: Start accepts. Automaton has 3111 states and 4978 transitions. Word has length 18 [2024-11-16 04:28:22,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:28:22,045 INFO L471 AbstractCegarLoop]: Abstraction has 3111 states and 4978 transitions. [2024-11-16 04:28:22,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3111 states and 4978 transitions. [2024-11-16 04:28:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 04:28:22,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:28:22,048 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:28:22,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:28:22,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:28:22,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:28:22,050 INFO L85 PathProgramCache]: Analyzing trace with hash -975922010, now seen corresponding path program 1 times [2024-11-16 04:28:22,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:28:22,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133387596] [2024-11-16 04:28:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:22,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:28:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:22,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:28:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:28:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133387596] [2024-11-16 04:28:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133387596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:28:22,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:28:22,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:28:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209670673] [2024-11-16 04:28:22,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:28:22,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:28:22,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:28:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:28:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:28:22,447 INFO L87 Difference]: Start difference. First operand 3111 states and 4978 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:28:31,303 INFO L93 Difference]: Finished difference Result 10368 states and 16196 transitions. [2024-11-16 04:28:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:28:31,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-16 04:28:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:28:31,332 INFO L225 Difference]: With dead ends: 10368 [2024-11-16 04:28:31,332 INFO L226 Difference]: Without dead ends: 7259 [2024-11-16 04:28:31,339 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 [2024-11-16 04:28:31,340 INFO L432 NwaCegarLoop]: 1029 mSDtfsCounter, 4323 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 9504 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4323 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 11002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 9504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:28:31,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4323 Valid, 1305 Invalid, 11002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1498 Valid, 9504 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-16 04:28:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7259 states. [2024-11-16 04:28:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7259 to 7255. [2024-11-16 04:28:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7255 states, 7254 states have (on average 1.449820788530466) internal successors, (10517), 7254 states have internal predecessors, (10517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:31,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7255 states to 7255 states and 10517 transitions. [2024-11-16 04:28:31,477 INFO L78 Accepts]: Start accepts. Automaton has 7255 states and 10517 transitions. Word has length 86 [2024-11-16 04:28:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:28:31,478 INFO L471 AbstractCegarLoop]: Abstraction has 7255 states and 10517 transitions. [2024-11-16 04:28:31,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:31,479 INFO L276 IsEmpty]: Start isEmpty. Operand 7255 states and 10517 transitions. [2024-11-16 04:28:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-16 04:28:31,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:28:31,491 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:28:31,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:28:31,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:28:31,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:28:31,492 INFO L85 PathProgramCache]: Analyzing trace with hash -918441446, now seen corresponding path program 1 times [2024-11-16 04:28:31,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:28:31,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359491431] [2024-11-16 04:28:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:31,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:28:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 04:28:32,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:28:32,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359491431] [2024-11-16 04:28:32,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359491431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:28:32,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:28:32,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:28:32,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798360722] [2024-11-16 04:28:32,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:28:32,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:28:32,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:28:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:28:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:28:32,459 INFO L87 Difference]: Start difference. First operand 7255 states and 10517 transitions. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:28:40,597 INFO L93 Difference]: Finished difference Result 17283 states and 24879 transitions. [2024-11-16 04:28:40,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:28:40,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 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 304 [2024-11-16 04:28:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:28:40,640 INFO L225 Difference]: With dead ends: 17283 [2024-11-16 04:28:40,641 INFO L226 Difference]: Without dead ends: 11396 [2024-11-16 04:28:40,652 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 [2024-11-16 04:28:40,653 INFO L432 NwaCegarLoop]: 1806 mSDtfsCounter, 3758 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 9455 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 9885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 9455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:28:40,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3758 Valid, 2166 Invalid, 9885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 9455 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-16 04:28:40,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11396 states. [2024-11-16 04:28:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11396 to 11376. [2024-11-16 04:28:40,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11376 states, 11375 states have (on average 1.3282637362637362) internal successors, (15109), 11375 states have internal predecessors, (15109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:40,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11376 states to 11376 states and 15109 transitions. [2024-11-16 04:28:40,889 INFO L78 Accepts]: Start accepts. Automaton has 11376 states and 15109 transitions. Word has length 304 [2024-11-16 04:28:40,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:28:40,891 INFO L471 AbstractCegarLoop]: Abstraction has 11376 states and 15109 transitions. [2024-11-16 04:28:40,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 11376 states and 15109 transitions. [2024-11-16 04:28:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-16 04:28:40,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:28:40,896 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:28:40,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:28:40,896 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:28:40,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:28:40,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1102384556, now seen corresponding path program 1 times [2024-11-16 04:28:40,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:28:40,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213094432] [2024-11-16 04:28:40,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:40,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:28:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:28:41,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:28:41,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213094432] [2024-11-16 04:28:41,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213094432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:28:41,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:28:41,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:28:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684839663] [2024-11-16 04:28:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:28:41,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:28:41,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:28:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:28:41,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:28:41,677 INFO L87 Difference]: Start difference. First operand 11376 states and 15109 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:46,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:28:46,669 INFO L93 Difference]: Finished difference Result 20050 states and 27498 transitions. [2024-11-16 04:28:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:28:46,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 332 [2024-11-16 04:28:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:28:46,697 INFO L225 Difference]: With dead ends: 20050 [2024-11-16 04:28:46,697 INFO L226 Difference]: Without dead ends: 11376 [2024-11-16 04:28:46,707 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 [2024-11-16 04:28:46,709 INFO L432 NwaCegarLoop]: 1778 mSDtfsCounter, 1151 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 5715 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 5723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:28:46,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1960 Invalid, 5723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5715 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-16 04:28:46,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11376 states. [2024-11-16 04:28:46,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11376 to 11376. [2024-11-16 04:28:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11376 states, 11375 states have (on average 1.327120879120879) internal successors, (15096), 11375 states have internal predecessors, (15096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11376 states to 11376 states and 15096 transitions. [2024-11-16 04:28:46,891 INFO L78 Accepts]: Start accepts. Automaton has 11376 states and 15096 transitions. Word has length 332 [2024-11-16 04:28:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:28:46,893 INFO L471 AbstractCegarLoop]: Abstraction has 11376 states and 15096 transitions. [2024-11-16 04:28:46,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:46,894 INFO L276 IsEmpty]: Start isEmpty. Operand 11376 states and 15096 transitions. [2024-11-16 04:28:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2024-11-16 04:28:46,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:28:46,903 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:28:46,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:28:46,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:28:46,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:28:46,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1309620879, now seen corresponding path program 1 times [2024-11-16 04:28:46,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:28:46,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877400707] [2024-11-16 04:28:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:46,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:28:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:47,821 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 29 proven. 44 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 04:28:47,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:28:47,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877400707] [2024-11-16 04:28:47,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877400707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:28:47,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951455317] [2024-11-16 04:28:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:47,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:28:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:28:47,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:28:47,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:28:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:48,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:28:48,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:28:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:28:48,250 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:28:48,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951455317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:28:48,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:28:48,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-16 04:28:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520177172] [2024-11-16 04:28:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:28:48,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:28:48,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:28:48,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:28:48,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:28:48,253 INFO L87 Difference]: Start difference. First operand 11376 states and 15096 transitions. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:53,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:28:53,575 INFO L93 Difference]: Finished difference Result 28233 states and 39205 transitions. [2024-11-16 04:28:53,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:28:53,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 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 576 [2024-11-16 04:28:53,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:28:53,610 INFO L225 Difference]: With dead ends: 28233 [2024-11-16 04:28:53,611 INFO L226 Difference]: Without dead ends: 19591 [2024-11-16 04:28:53,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:28:53,623 INFO L432 NwaCegarLoop]: 1309 mSDtfsCounter, 1776 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 3854 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 5582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 3854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:28:53,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 1448 Invalid, 5582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1728 Valid, 3854 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-16 04:28:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19591 states. [2024-11-16 04:28:53,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19591 to 19590. [2024-11-16 04:28:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19590 states, 19589 states have (on average 1.2421767318392976) internal successors, (24333), 19589 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:53,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19590 states to 19590 states and 24333 transitions. [2024-11-16 04:28:53,865 INFO L78 Accepts]: Start accepts. Automaton has 19590 states and 24333 transitions. Word has length 576 [2024-11-16 04:28:53,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:28:53,867 INFO L471 AbstractCegarLoop]: Abstraction has 19590 states and 24333 transitions. [2024-11-16 04:28:53,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:53,867 INFO L276 IsEmpty]: Start isEmpty. Operand 19590 states and 24333 transitions. [2024-11-16 04:28:53,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-11-16 04:28:53,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:28:53,877 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:28:53,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:28:54,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:28:54,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:28:54,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:28:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash -284584249, now seen corresponding path program 1 times [2024-11-16 04:28:54,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:28:54,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580872457] [2024-11-16 04:28:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:28:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:28:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:28:54,561 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:28:54,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:28:54,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580872457] [2024-11-16 04:28:54,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580872457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:28:54,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:28:54,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:28:54,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977881316] [2024-11-16 04:28:54,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:28:54,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:28:54,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:28:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:28:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:28:54,566 INFO L87 Difference]: Start difference. First operand 19590 states and 24333 transitions. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:28:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:28:59,863 INFO L93 Difference]: Finished difference Result 46087 states and 59489 transitions. [2024-11-16 04:28:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:28:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 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 581 [2024-11-16 04:28:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:28:59,915 INFO L225 Difference]: With dead ends: 46087 [2024-11-16 04:28:59,915 INFO L226 Difference]: Without dead ends: 29231 [2024-11-16 04:28:59,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:28:59,940 INFO L432 NwaCegarLoop]: 2996 mSDtfsCounter, 1421 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 4130 mSolverCounterSat, 1663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 3168 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1663 IncrementalHoareTripleChecker+Valid, 4130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:28:59,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 3168 Invalid, 5793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1663 Valid, 4130 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-16 04:28:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29231 states. [2024-11-16 04:29:00,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29231 to 27818. [2024-11-16 04:29:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27818 states, 27817 states have (on average 1.2229571844555487) internal successors, (34019), 27817 states have internal predecessors, (34019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27818 states to 27818 states and 34019 transitions. [2024-11-16 04:29:00,373 INFO L78 Accepts]: Start accepts. Automaton has 27818 states and 34019 transitions. Word has length 581 [2024-11-16 04:29:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:29:00,374 INFO L471 AbstractCegarLoop]: Abstraction has 27818 states and 34019 transitions. [2024-11-16 04:29:00,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:00,375 INFO L276 IsEmpty]: Start isEmpty. Operand 27818 states and 34019 transitions. [2024-11-16 04:29:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-16 04:29:00,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:29:00,385 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:29:00,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:29:00,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:29:00,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:29:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1120460667, now seen corresponding path program 1 times [2024-11-16 04:29:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:29:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968572181] [2024-11-16 04:29:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:29:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:29:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:29:00,829 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-16 04:29:00,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:29:00,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968572181] [2024-11-16 04:29:00,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968572181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:29:00,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:29:00,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:29:00,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549884774] [2024-11-16 04:29:00,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:29:00,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:29:00,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:29:00,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:29:00,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:29:00,834 INFO L87 Difference]: Start difference. First operand 27818 states and 34019 transitions. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 2 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:06,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:29:06,510 INFO L93 Difference]: Finished difference Result 76329 states and 94766 transitions. [2024-11-16 04:29:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:29:06,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 2 states have internal predecessors, (508), 0 states have call successors, (0), 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 584 [2024-11-16 04:29:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:29:06,585 INFO L225 Difference]: With dead ends: 76329 [2024-11-16 04:29:06,586 INFO L226 Difference]: Without dead ends: 51245 [2024-11-16 04:29:06,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:29:06,621 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 2112 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 5097 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 5531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:29:06,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2112 Valid, 968 Invalid, 5531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5097 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-16 04:29:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51245 states. [2024-11-16 04:29:07,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51245 to 49874. [2024-11-16 04:29:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49874 states, 49873 states have (on average 1.2109959296613397) internal successors, (60396), 49873 states have internal predecessors, (60396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:07,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49874 states to 49874 states and 60396 transitions. [2024-11-16 04:29:07,334 INFO L78 Accepts]: Start accepts. Automaton has 49874 states and 60396 transitions. Word has length 584 [2024-11-16 04:29:07,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:29:07,335 INFO L471 AbstractCegarLoop]: Abstraction has 49874 states and 60396 transitions. [2024-11-16 04:29:07,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 2 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 49874 states and 60396 transitions. [2024-11-16 04:29:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2024-11-16 04:29:07,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:29:07,343 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:29:07,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:29:07,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:29:07,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:29:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1955161256, now seen corresponding path program 1 times [2024-11-16 04:29:07,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:29:07,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127403524] [2024-11-16 04:29:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:29:07,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:29:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:29:07,965 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-16 04:29:07,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:29:07,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127403524] [2024-11-16 04:29:07,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127403524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:29:07,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:29:07,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:29:07,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295957605] [2024-11-16 04:29:07,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:29:07,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:29:07,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:29:07,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:29:07,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:29:07,969 INFO L87 Difference]: Start difference. First operand 49874 states and 60396 transitions. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:13,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:29:13,539 INFO L93 Difference]: Finished difference Result 114812 states and 142533 transitions. [2024-11-16 04:29:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:29:13,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 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 814 [2024-11-16 04:29:13,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:29:13,631 INFO L225 Difference]: With dead ends: 114812 [2024-11-16 04:29:13,631 INFO L226 Difference]: Without dead ends: 67672 [2024-11-16 04:29:13,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:29:13,651 INFO L432 NwaCegarLoop]: 1483 mSDtfsCounter, 1543 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 4036 mSolverCounterSat, 1699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 5735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1699 IncrementalHoareTripleChecker+Valid, 4036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:29:13,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 1676 Invalid, 5735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1699 Valid, 4036 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-16 04:29:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67672 states. [2024-11-16 04:29:14,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67672 to 49820. [2024-11-16 04:29:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49820 states, 49819 states have (on average 1.2106625986069572) internal successors, (60314), 49819 states have internal predecessors, (60314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49820 states to 49820 states and 60314 transitions. [2024-11-16 04:29:14,226 INFO L78 Accepts]: Start accepts. Automaton has 49820 states and 60314 transitions. Word has length 814 [2024-11-16 04:29:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:29:14,227 INFO L471 AbstractCegarLoop]: Abstraction has 49820 states and 60314 transitions. [2024-11-16 04:29:14,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:29:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 49820 states and 60314 transitions. [2024-11-16 04:29:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2024-11-16 04:29:14,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:29:14,235 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:29:14,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:29:14,236 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:29:14,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:29:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -401772921, now seen corresponding path program 1 times [2024-11-16 04:29:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:29:14,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526483159] [2024-11-16 04:29:14,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:29:14,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:29:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:29:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-16 04:29:15,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:29:15,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526483159] [2024-11-16 04:29:15,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526483159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:29:15,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:29:15,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:29:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101834710] [2024-11-16 04:29:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:29:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:29:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:29:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:29:15,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:29:15,224 INFO L87 Difference]: Start difference. First operand 49820 states and 60314 transitions. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 2 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)