./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_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/Problem12_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 7c2a5ace26f36583b09a306c2edaa0573f422d931cc3959f8aefc935152706cf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:52:36,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:52:36,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:52:36,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:52:36,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:52:36,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:52:36,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:52:36,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:52:36,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:52:36,141 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:52:36,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:52:36,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:52:36,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:52:36,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:52:36,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:52:36,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:52:36,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:52:36,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:52:36,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:52:36,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:52:36,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:52:36,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:52:36,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:52:36,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:52:36,150 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:52:36,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:52:36,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:52:36,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:52:36,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:52:36,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:52:36,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:52:36,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:52:36,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:52:36,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:52:36,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:52:36,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:52:36,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:52:36,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:52:36,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:52:36,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:52:36,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:52:36,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:52:36,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c2a5ace26f36583b09a306c2edaa0573f422d931cc3959f8aefc935152706cf [2024-11-16 03:52:36,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:52:36,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:52:36,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:52:36,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:52:36,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:52:36,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label11.c [2024-11-16 03:52:37,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:52:38,335 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:52:38,337 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label11.c [2024-11-16 03:52:38,376 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b87026660/744cd975f1aa405f9fef5625f075860c/FLAG51912afdc [2024-11-16 03:52:38,476 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b87026660/744cd975f1aa405f9fef5625f075860c [2024-11-16 03:52:38,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:52:38,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:52:38,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:52:38,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:52:38,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:52:38,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:38" (1/1) ... [2024-11-16 03:52:38,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419608d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:38, skipping insertion in model container [2024-11-16 03:52:38,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:52:38" (1/1) ... [2024-11-16 03:52:38,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:52:38,863 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label11.c[5009,5022] [2024-11-16 03:52:39,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:52:39,634 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:52:39,660 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label11.c[5009,5022] [2024-11-16 03:52:40,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:52:40,108 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:52:40,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40 WrapperNode [2024-11-16 03:52:40,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:52:40,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:52:40,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:52:40,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:52:40,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,485 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:52:40,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:52:40,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:52:40,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:52:40,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:52:40,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,762 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 03:52:40,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,930 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:40,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:41,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:41,026 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:41,088 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:52:41,090 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:52:41,090 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:52:41,090 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:52:41,091 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (1/1) ... [2024-11-16 03:52:41,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:52:41,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:52:41,126 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 03:52:41,129 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 03:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:52:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:52:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:52:41,238 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:52:41,240 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:52:45,328 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:52:45,329 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:52:45,330 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:52:45,594 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:52:45,594 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:52:45,641 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:52:45,641 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:52:45,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:52:45 BoogieIcfgContainer [2024-11-16 03:52:45,642 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:52:45,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:52:45,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:52:45,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:52:45,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:52:38" (1/3) ... [2024-11-16 03:52:45,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495f444a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:45, skipping insertion in model container [2024-11-16 03:52:45,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:52:40" (2/3) ... [2024-11-16 03:52:45,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495f444a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:52:45, skipping insertion in model container [2024-11-16 03:52:45,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:52:45" (3/3) ... [2024-11-16 03:52:45,656 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label11.c [2024-11-16 03:52:45,677 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:52:45,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:52:45,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:52:45,790 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;@38913a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:52:45,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:52:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 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 03:52:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 03:52:45,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:45,810 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:52:45,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:45,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:45,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1576995010, now seen corresponding path program 1 times [2024-11-16 03:52:45,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:45,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884296038] [2024-11-16 03:52:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:46,214 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 03:52:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884296038] [2024-11-16 03:52:46,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884296038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:46,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:46,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:46,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62146210] [2024-11-16 03:52:46,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:46,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:46,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:46,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:46,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:46,258 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 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 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 03:52:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:49,666 INFO L93 Difference]: Finished difference Result 2394 states and 4635 transitions. [2024-11-16 03:52:49,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:49,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2024-11-16 03:52:49,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:49,703 INFO L225 Difference]: With dead ends: 2394 [2024-11-16 03:52:49,703 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:52:49,712 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 03:52:49,716 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 797 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:49,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 116 Invalid, 3264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:52:49,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:52:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:52:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.8640583554376657) internal successors, (2811), 1508 states have internal predecessors, (2811), 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 03:52:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2811 transitions. [2024-11-16 03:52:49,842 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2811 transitions. Word has length 41 [2024-11-16 03:52:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:49,842 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2811 transitions. [2024-11-16 03:52:49,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 03:52:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2811 transitions. [2024-11-16 03:52:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 03:52:49,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:49,846 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:52:49,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:49,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:49,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1981130600, now seen corresponding path program 1 times [2024-11-16 03:52:49,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:49,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241694049] [2024-11-16 03:52:49,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:49,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:50,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:50,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241694049] [2024-11-16 03:52:50,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241694049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:50,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:50,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:52:50,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889301609] [2024-11-16 03:52:50,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:50,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:52:50,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:50,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:52:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:52:50,077 INFO L87 Difference]: Start difference. First operand 1509 states and 2811 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 03:52:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:53,213 INFO L93 Difference]: Finished difference Result 4523 states and 8429 transitions. [2024-11-16 03:52:53,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:52:53,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2024-11-16 03:52:53,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:53,226 INFO L225 Difference]: With dead ends: 4523 [2024-11-16 03:52:53,227 INFO L226 Difference]: Without dead ends: 3016 [2024-11-16 03:52:53,229 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 03:52:53,230 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 927 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:53,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 357 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 03:52:53,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2024-11-16 03:52:53,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 3013. [2024-11-16 03:52:53,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.650066401062417) internal successors, (4970), 3012 states have internal predecessors, (4970), 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 03:52:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4970 transitions. [2024-11-16 03:52:53,297 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4970 transitions. Word has length 107 [2024-11-16 03:52:53,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:53,298 INFO L471 AbstractCegarLoop]: Abstraction has 3013 states and 4970 transitions. [2024-11-16 03:52:53,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 03:52:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4970 transitions. [2024-11-16 03:52:53,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 03:52:53,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:53,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:53,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:52:53,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:53,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:53,305 INFO L85 PathProgramCache]: Analyzing trace with hash 497944983, now seen corresponding path program 1 times [2024-11-16 03:52:53,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:53,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591120544] [2024-11-16 03:52:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:53,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:53,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591120544] [2024-11-16 03:52:53,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591120544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:53,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:53,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:53,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556505777] [2024-11-16 03:52:53,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:53,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:53,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:53,636 INFO L87 Difference]: Start difference. First operand 3013 states and 4970 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 03:52:56,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:52:56,876 INFO L93 Difference]: Finished difference Result 7569 states and 12137 transitions. [2024-11-16 03:52:56,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:52:56,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 113 [2024-11-16 03:52:56,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:52:56,895 INFO L225 Difference]: With dead ends: 7569 [2024-11-16 03:52:56,897 INFO L226 Difference]: Without dead ends: 4520 [2024-11-16 03:52:56,902 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 03:52:56,903 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 706 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:52:56,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 614 Invalid, 3441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:52:56,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4520 states. [2024-11-16 03:52:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4520 to 4517. [2024-11-16 03:52:56,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4516 states have (on average 1.4508414526129318) internal successors, (6552), 4516 states have internal predecessors, (6552), 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 03:52:56,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6552 transitions. [2024-11-16 03:52:56,990 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6552 transitions. Word has length 113 [2024-11-16 03:52:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:52:56,996 INFO L471 AbstractCegarLoop]: Abstraction has 4517 states and 6552 transitions. [2024-11-16 03:52:56,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 03:52:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6552 transitions. [2024-11-16 03:52:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 03:52:57,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:52:57,002 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:57,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:52:57,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:52:57,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:52:57,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1145881579, now seen corresponding path program 1 times [2024-11-16 03:52:57,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:52:57,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047810875] [2024-11-16 03:52:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:52:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:52:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:52:57,327 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:52:57,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:52:57,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047810875] [2024-11-16 03:52:57,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047810875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:52:57,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:52:57,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:52:57,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55007546] [2024-11-16 03:52:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:52:57,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:52:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:52:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:52:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:52:57,330 INFO L87 Difference]: Start difference. First operand 4517 states and 6552 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 03:53:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:01,125 INFO L93 Difference]: Finished difference Result 14305 states and 20485 transitions. [2024-11-16 03:53:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:53:01,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 158 [2024-11-16 03:53:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:01,159 INFO L225 Difference]: With dead ends: 14305 [2024-11-16 03:53:01,159 INFO L226 Difference]: Without dead ends: 9790 [2024-11-16 03:53:01,167 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 03:53:01,170 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 2132 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 3777 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 4619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 3777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:01,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 390 Invalid, 4619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 3777 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-16 03:53:01,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2024-11-16 03:53:01,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 9781. [2024-11-16 03:53:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9780 states have (on average 1.3648261758691207) internal successors, (13348), 9780 states have internal predecessors, (13348), 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 03:53:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 13348 transitions. [2024-11-16 03:53:01,338 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 13348 transitions. Word has length 158 [2024-11-16 03:53:01,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:01,340 INFO L471 AbstractCegarLoop]: Abstraction has 9781 states and 13348 transitions. [2024-11-16 03:53:01,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 03:53:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 13348 transitions. [2024-11-16 03:53:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-16 03:53:01,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:01,346 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:53:01,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:53:01,347 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:01,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash -305456810, now seen corresponding path program 1 times [2024-11-16 03:53:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:01,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499394508] [2024-11-16 03:53:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:01,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-16 03:53:01,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:01,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499394508] [2024-11-16 03:53:01,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499394508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:01,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:01,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:53:01,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718519579] [2024-11-16 03:53:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:01,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:01,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:01,650 INFO L87 Difference]: Start difference. First operand 9781 states and 13348 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 03:53:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:04,247 INFO L93 Difference]: Finished difference Result 27080 states and 37623 transitions. [2024-11-16 03:53:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:04,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 306 [2024-11-16 03:53:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:04,295 INFO L225 Difference]: With dead ends: 27080 [2024-11-16 03:53:04,295 INFO L226 Difference]: Without dead ends: 17301 [2024-11-16 03:53:04,307 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 03:53:04,308 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 698 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 860 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:04,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 430 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [860 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:53:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17301 states. [2024-11-16 03:53:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17301 to 15797. [2024-11-16 03:53:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15797 states, 15796 states have (on average 1.281210433021018) internal successors, (20238), 15796 states have internal predecessors, (20238), 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 03:53:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15797 states to 15797 states and 20238 transitions. [2024-11-16 03:53:04,561 INFO L78 Accepts]: Start accepts. Automaton has 15797 states and 20238 transitions. Word has length 306 [2024-11-16 03:53:04,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:04,562 INFO L471 AbstractCegarLoop]: Abstraction has 15797 states and 20238 transitions. [2024-11-16 03:53:04,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 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 03:53:04,563 INFO L276 IsEmpty]: Start isEmpty. Operand 15797 states and 20238 transitions. [2024-11-16 03:53:04,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-16 03:53:04,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:04,571 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:04,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:53:04,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:04,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1756705459, now seen corresponding path program 1 times [2024-11-16 03:53:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:04,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111492946] [2024-11-16 03:53:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:04,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-16 03:53:05,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:05,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111492946] [2024-11-16 03:53:05,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111492946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:05,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:05,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160066139] [2024-11-16 03:53:05,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:05,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:05,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:05,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:05,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:05,373 INFO L87 Difference]: Start difference. First operand 15797 states and 20238 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 03:53:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:08,344 INFO L93 Difference]: Finished difference Result 39864 states and 52225 transitions. [2024-11-16 03:53:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:08,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 386 [2024-11-16 03:53:08,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:08,391 INFO L225 Difference]: With dead ends: 39864 [2024-11-16 03:53:08,392 INFO L226 Difference]: Without dead ends: 24069 [2024-11-16 03:53:08,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 03:53:08,408 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 777 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 1093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1093 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:08,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 145 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1093 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 03:53:08,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24069 states. [2024-11-16 03:53:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24069 to 23317. [2024-11-16 03:53:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23317 states, 23316 states have (on average 1.3028392520157832) internal successors, (30377), 23316 states have internal predecessors, (30377), 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 03:53:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23317 states to 23317 states and 30377 transitions. [2024-11-16 03:53:08,733 INFO L78 Accepts]: Start accepts. Automaton has 23317 states and 30377 transitions. Word has length 386 [2024-11-16 03:53:08,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:08,734 INFO L471 AbstractCegarLoop]: Abstraction has 23317 states and 30377 transitions. [2024-11-16 03:53:08,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 03:53:08,735 INFO L276 IsEmpty]: Start isEmpty. Operand 23317 states and 30377 transitions. [2024-11-16 03:53:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-16 03:53:08,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:08,743 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:53:08,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:53:08,743 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:08,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash 330809531, now seen corresponding path program 1 times [2024-11-16 03:53:08,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:08,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895623623] [2024-11-16 03:53:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:08,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-16 03:53:09,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:09,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895623623] [2024-11-16 03:53:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895623623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:09,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:09,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629848292] [2024-11-16 03:53:09,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:09,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:09,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:09,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:09,044 INFO L87 Difference]: Start difference. First operand 23317 states and 30377 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 03:53:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:11,888 INFO L93 Difference]: Finished difference Result 57160 states and 74556 transitions. [2024-11-16 03:53:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:11,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 404 [2024-11-16 03:53:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:11,972 INFO L225 Difference]: With dead ends: 57160 [2024-11-16 03:53:11,972 INFO L226 Difference]: Without dead ends: 33845 [2024-11-16 03:53:11,999 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 03:53:11,999 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 735 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:12,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 220 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:53:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33845 states. [2024-11-16 03:53:12,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33845 to 33093. [2024-11-16 03:53:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33093 states, 33092 states have (on average 1.2904025142028286) internal successors, (42702), 33092 states have internal predecessors, (42702), 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 03:53:12,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33093 states to 33093 states and 42702 transitions. [2024-11-16 03:53:12,421 INFO L78 Accepts]: Start accepts. Automaton has 33093 states and 42702 transitions. Word has length 404 [2024-11-16 03:53:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:12,422 INFO L471 AbstractCegarLoop]: Abstraction has 33093 states and 42702 transitions. [2024-11-16 03:53:12,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 03:53:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33093 states and 42702 transitions. [2024-11-16 03:53:12,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-16 03:53:12,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:12,432 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:12,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:53:12,432 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:12,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:12,434 INFO L85 PathProgramCache]: Analyzing trace with hash 7582840, now seen corresponding path program 1 times [2024-11-16 03:53:12,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:12,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854403740] [2024-11-16 03:53:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:12,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-16 03:53:12,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:12,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854403740] [2024-11-16 03:53:12,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854403740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:12,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:12,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:12,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551365431] [2024-11-16 03:53:12,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:12,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:12,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:12,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:12,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:12,815 INFO L87 Difference]: Start difference. First operand 33093 states and 42702 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 03:53:15,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:15,429 INFO L93 Difference]: Finished difference Result 80472 states and 103616 transitions. [2024-11-16 03:53:15,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:15,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 415 [2024-11-16 03:53:15,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:15,501 INFO L225 Difference]: With dead ends: 80472 [2024-11-16 03:53:15,501 INFO L226 Difference]: Without dead ends: 47381 [2024-11-16 03:53:15,541 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 03:53:15,543 INFO L432 NwaCegarLoop]: 1322 mSDtfsCounter, 719 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:15,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1332 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:53:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47381 states. [2024-11-16 03:53:16,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47381 to 45877. [2024-11-16 03:53:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45877 states, 45876 states have (on average 1.2484087540326096) internal successors, (57272), 45876 states have internal predecessors, (57272), 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 03:53:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45877 states to 45877 states and 57272 transitions. [2024-11-16 03:53:16,278 INFO L78 Accepts]: Start accepts. Automaton has 45877 states and 57272 transitions. Word has length 415 [2024-11-16 03:53:16,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:16,279 INFO L471 AbstractCegarLoop]: Abstraction has 45877 states and 57272 transitions. [2024-11-16 03:53:16,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 03:53:16,280 INFO L276 IsEmpty]: Start isEmpty. Operand 45877 states and 57272 transitions. [2024-11-16 03:53:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-16 03:53:16,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:16,289 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2024-11-16 03:53:16,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:53:16,289 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:16,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:16,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1155309065, now seen corresponding path program 1 times [2024-11-16 03:53:16,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:16,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631434804] [2024-11-16 03:53:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:16,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:16,543 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-16 03:53:16,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:16,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631434804] [2024-11-16 03:53:16,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631434804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:16,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:16,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:16,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573657752] [2024-11-16 03:53:16,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:16,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:16,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:16,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:16,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:16,547 INFO L87 Difference]: Start difference. First operand 45877 states and 57272 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 03:53:19,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:19,207 INFO L93 Difference]: Finished difference Result 94008 states and 116841 transitions. [2024-11-16 03:53:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:19,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 424 [2024-11-16 03:53:19,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:19,269 INFO L225 Difference]: With dead ends: 94008 [2024-11-16 03:53:19,270 INFO L226 Difference]: Without dead ends: 47381 [2024-11-16 03:53:19,299 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 03:53:19,301 INFO L432 NwaCegarLoop]: 1140 mSDtfsCounter, 793 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:19,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1148 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:53:19,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47381 states. [2024-11-16 03:53:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47381 to 45125. [2024-11-16 03:53:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45125 states, 45124 states have (on average 1.2059879443311763) internal successors, (54419), 45124 states have internal predecessors, (54419), 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 03:53:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45125 states to 45125 states and 54419 transitions. [2024-11-16 03:53:20,013 INFO L78 Accepts]: Start accepts. Automaton has 45125 states and 54419 transitions. Word has length 424 [2024-11-16 03:53:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:20,014 INFO L471 AbstractCegarLoop]: Abstraction has 45125 states and 54419 transitions. [2024-11-16 03:53:20,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 03:53:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 45125 states and 54419 transitions. [2024-11-16 03:53:20,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-16 03:53:20,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:20,027 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:53:20,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:53:20,028 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:20,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1314048924, now seen corresponding path program 1 times [2024-11-16 03:53:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:20,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736265818] [2024-11-16 03:53:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:20,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:20,662 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-16 03:53:20,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:20,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736265818] [2024-11-16 03:53:20,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736265818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:20,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:20,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026902483] [2024-11-16 03:53:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:20,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:20,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:20,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:20,669 INFO L87 Difference]: Start difference. First operand 45125 states and 54419 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 03:53:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:23,398 INFO L93 Difference]: Finished difference Result 92504 states and 111318 transitions. [2024-11-16 03:53:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:23,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 437 [2024-11-16 03:53:23,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:23,447 INFO L225 Difference]: With dead ends: 92504 [2024-11-16 03:53:23,448 INFO L226 Difference]: Without dead ends: 48133 [2024-11-16 03:53:23,478 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 03:53:23,478 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 649 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:23,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1261 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 2628 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:53:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48133 states. [2024-11-16 03:53:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48133 to 47381. [2024-11-16 03:53:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47381 states, 47380 states have (on average 1.186492190797805) internal successors, (56216), 47380 states have internal predecessors, (56216), 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 03:53:24,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47381 states to 47381 states and 56216 transitions. [2024-11-16 03:53:24,164 INFO L78 Accepts]: Start accepts. Automaton has 47381 states and 56216 transitions. Word has length 437 [2024-11-16 03:53:24,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:24,164 INFO L471 AbstractCegarLoop]: Abstraction has 47381 states and 56216 transitions. [2024-11-16 03:53:24,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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 03:53:24,165 INFO L276 IsEmpty]: Start isEmpty. Operand 47381 states and 56216 transitions. [2024-11-16 03:53:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2024-11-16 03:53:24,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:24,177 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:24,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:53:24,178 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:24,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash -492961362, now seen corresponding path program 1 times [2024-11-16 03:53:24,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:24,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083170390] [2024-11-16 03:53:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:24,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-16 03:53:24,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:24,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083170390] [2024-11-16 03:53:24,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083170390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:24,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:24,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:24,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3677049] [2024-11-16 03:53:24,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:24,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:24,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:24,640 INFO L87 Difference]: Start difference. First operand 47381 states and 56216 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 03:53:26,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:26,922 INFO L93 Difference]: Finished difference Result 104536 states and 123264 transitions. [2024-11-16 03:53:26,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:26,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 441 [2024-11-16 03:53:26,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:26,982 INFO L225 Difference]: With dead ends: 104536 [2024-11-16 03:53:26,982 INFO L226 Difference]: Without dead ends: 54149 [2024-11-16 03:53:27,011 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 03:53:27,012 INFO L432 NwaCegarLoop]: 1325 mSDtfsCounter, 732 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:27,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1333 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 03:53:27,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54149 states. [2024-11-16 03:53:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54149 to 54149. [2024-11-16 03:53:27,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54149 states, 54148 states have (on average 1.1468936987515699) internal successors, (62102), 54148 states have internal predecessors, (62102), 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 03:53:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54149 states to 54149 states and 62102 transitions. [2024-11-16 03:53:27,733 INFO L78 Accepts]: Start accepts. Automaton has 54149 states and 62102 transitions. Word has length 441 [2024-11-16 03:53:27,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:27,733 INFO L471 AbstractCegarLoop]: Abstraction has 54149 states and 62102 transitions. [2024-11-16 03:53:27,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 03:53:27,734 INFO L276 IsEmpty]: Start isEmpty. Operand 54149 states and 62102 transitions. [2024-11-16 03:53:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-16 03:53:27,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:27,741 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:53:27,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:53:27,742 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:27,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:27,743 INFO L85 PathProgramCache]: Analyzing trace with hash -916985316, now seen corresponding path program 1 times [2024-11-16 03:53:27,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:27,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022642344] [2024-11-16 03:53:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:27,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-16 03:53:28,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:28,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022642344] [2024-11-16 03:53:28,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022642344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:28,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:28,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:28,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604522775] [2024-11-16 03:53:28,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:28,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:28,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:28,260 INFO L87 Difference]: Start difference. First operand 54149 states and 62102 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 03:53:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:30,866 INFO L93 Difference]: Finished difference Result 124088 states and 142813 transitions. [2024-11-16 03:53:30,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:30,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 442 [2024-11-16 03:53:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:30,947 INFO L225 Difference]: With dead ends: 124088 [2024-11-16 03:53:30,947 INFO L226 Difference]: Without dead ends: 70693 [2024-11-16 03:53:30,963 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 03:53:30,964 INFO L432 NwaCegarLoop]: 1183 mSDtfsCounter, 698 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:30,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1193 Invalid, 2583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:53:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70693 states. [2024-11-16 03:53:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70693 to 70693. [2024-11-16 03:53:31,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70693 states, 70692 states have (on average 1.1273977253437446) internal successors, (79698), 70692 states have internal predecessors, (79698), 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 03:53:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70693 states to 70693 states and 79698 transitions. [2024-11-16 03:53:31,867 INFO L78 Accepts]: Start accepts. Automaton has 70693 states and 79698 transitions. Word has length 442 [2024-11-16 03:53:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:31,867 INFO L471 AbstractCegarLoop]: Abstraction has 70693 states and 79698 transitions. [2024-11-16 03:53:31,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 03:53:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 70693 states and 79698 transitions. [2024-11-16 03:53:31,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-16 03:53:31,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:31,875 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 03:53:31,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:53:31,875 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:31,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:31,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1936296831, now seen corresponding path program 1 times [2024-11-16 03:53:31,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:31,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374697418] [2024-11-16 03:53:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:31,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-16 03:53:32,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:32,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374697418] [2024-11-16 03:53:32,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374697418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:32,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:32,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:32,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292906546] [2024-11-16 03:53:32,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:32,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:32,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:32,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:32,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:32,653 INFO L87 Difference]: Start difference. First operand 70693 states and 79698 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 03:53:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:35,526 INFO L93 Difference]: Finished difference Result 185000 states and 209104 transitions. [2024-11-16 03:53:35,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:35,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 444 [2024-11-16 03:53:35,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:35,657 INFO L225 Difference]: With dead ends: 185000 [2024-11-16 03:53:35,657 INFO L226 Difference]: Without dead ends: 115061 [2024-11-16 03:53:35,880 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 03:53:35,880 INFO L432 NwaCegarLoop]: 1285 mSDtfsCounter, 684 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:35,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 1295 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:53:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115061 states. [2024-11-16 03:53:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115061 to 102277. [2024-11-16 03:53:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102277 states, 102276 states have (on average 1.1082365364308342) internal successors, (113346), 102276 states have internal predecessors, (113346), 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 03:53:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102277 states to 102277 states and 113346 transitions. [2024-11-16 03:53:37,205 INFO L78 Accepts]: Start accepts. Automaton has 102277 states and 113346 transitions. Word has length 444 [2024-11-16 03:53:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:37,206 INFO L471 AbstractCegarLoop]: Abstraction has 102277 states and 113346 transitions. [2024-11-16 03:53:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 03:53:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 102277 states and 113346 transitions. [2024-11-16 03:53:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-16 03:53:37,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:37,506 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2024-11-16 03:53:37,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:53:37,507 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:37,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash -779558658, now seen corresponding path program 1 times [2024-11-16 03:53:37,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:37,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778900321] [2024-11-16 03:53:37,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-11-16 03:53:37,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:37,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778900321] [2024-11-16 03:53:37,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778900321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:37,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:37,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:37,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406584991] [2024-11-16 03:53:37,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:37,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:37,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:37,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:37,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:37,898 INFO L87 Difference]: Start difference. First operand 102277 states and 113346 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 03:53:40,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:40,703 INFO L93 Difference]: Finished difference Result 204552 states and 226688 transitions. [2024-11-16 03:53:40,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:40,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 494 [2024-11-16 03:53:40,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:40,817 INFO L225 Difference]: With dead ends: 204552 [2024-11-16 03:53:40,817 INFO L226 Difference]: Without dead ends: 103029 [2024-11-16 03:53:40,874 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 03:53:40,875 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 792 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:40,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 222 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:53:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103029 states. [2024-11-16 03:53:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103029 to 95509. [2024-11-16 03:53:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95509 states, 95508 states have (on average 1.0787892113749633) internal successors, (103033), 95508 states have internal predecessors, (103033), 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 03:53:42,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95509 states to 95509 states and 103033 transitions. [2024-11-16 03:53:42,293 INFO L78 Accepts]: Start accepts. Automaton has 95509 states and 103033 transitions. Word has length 494 [2024-11-16 03:53:42,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:42,294 INFO L471 AbstractCegarLoop]: Abstraction has 95509 states and 103033 transitions. [2024-11-16 03:53:42,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 03:53:42,294 INFO L276 IsEmpty]: Start isEmpty. Operand 95509 states and 103033 transitions. [2024-11-16 03:53:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-11-16 03:53:42,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:42,303 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:42,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:53:42,303 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:42,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:42,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1860159577, now seen corresponding path program 1 times [2024-11-16 03:53:42,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:42,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139177029] [2024-11-16 03:53:42,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:42,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-16 03:53:42,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:42,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139177029] [2024-11-16 03:53:42,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139177029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:42,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:42,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:42,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841666638] [2024-11-16 03:53:42,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:42,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:42,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:42,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:42,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:42,808 INFO L87 Difference]: Start difference. First operand 95509 states and 103033 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 03:53:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:45,755 INFO L93 Difference]: Finished difference Result 190264 states and 205307 transitions. [2024-11-16 03:53:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:45,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 506 [2024-11-16 03:53:45,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:45,870 INFO L225 Difference]: With dead ends: 190264 [2024-11-16 03:53:45,870 INFO L226 Difference]: Without dead ends: 95509 [2024-11-16 03:53:45,929 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 03:53:45,929 INFO L432 NwaCegarLoop]: 1238 mSDtfsCounter, 567 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:45,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1248 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:53:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95509 states. [2024-11-16 03:53:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95509 to 91749. [2024-11-16 03:53:47,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91749 states, 91748 states have (on average 1.0563064044992807) internal successors, (96914), 91748 states have internal predecessors, (96914), 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 03:53:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91749 states to 91749 states and 96914 transitions. [2024-11-16 03:53:47,279 INFO L78 Accepts]: Start accepts. Automaton has 91749 states and 96914 transitions. Word has length 506 [2024-11-16 03:53:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:47,279 INFO L471 AbstractCegarLoop]: Abstraction has 91749 states and 96914 transitions. [2024-11-16 03:53:47,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 03:53:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 91749 states and 96914 transitions. [2024-11-16 03:53:47,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-16 03:53:47,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:47,285 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:47,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:53:47,286 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:47,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash 427900224, now seen corresponding path program 1 times [2024-11-16 03:53:47,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:47,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12412876] [2024-11-16 03:53:47,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:47,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:53:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:53:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-16 03:53:47,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:53:47,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12412876] [2024-11-16 03:53:47,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12412876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:53:47,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:53:47,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:53:47,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793240565] [2024-11-16 03:53:47,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:53:47,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:53:47,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:53:47,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:53:47,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:53:47,539 INFO L87 Difference]: Start difference. First operand 91749 states and 96914 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 03:53:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:53:50,477 INFO L93 Difference]: Finished difference Result 199288 states and 210704 transitions. [2024-11-16 03:53:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:53:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 525 [2024-11-16 03:53:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:53:50,616 INFO L225 Difference]: With dead ends: 199288 [2024-11-16 03:53:50,616 INFO L226 Difference]: Without dead ends: 108293 [2024-11-16 03:53:50,675 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 03:53:50,676 INFO L432 NwaCegarLoop]: 1112 mSDtfsCounter, 835 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:53:50,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1122 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:53:50,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108293 states. [2024-11-16 03:53:51,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108293 to 103781. [2024-11-16 03:53:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103781 states, 103780 states have (on average 1.053353247253806) internal successors, (109317), 103780 states have internal predecessors, (109317), 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 03:53:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103781 states to 103781 states and 109317 transitions. [2024-11-16 03:53:52,054 INFO L78 Accepts]: Start accepts. Automaton has 103781 states and 109317 transitions. Word has length 525 [2024-11-16 03:53:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:53:52,055 INFO L471 AbstractCegarLoop]: Abstraction has 103781 states and 109317 transitions. [2024-11-16 03:53:52,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 03:53:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 103781 states and 109317 transitions. [2024-11-16 03:53:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-16 03:53:52,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:53:52,071 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:53:52,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:53:52,071 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:53:52,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:53:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 611874456, now seen corresponding path program 1 times [2024-11-16 03:53:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:53:52,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754355048] [2024-11-16 03:53:52,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:53:52,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms