./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.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 35835b17b59c5e920a3c43e288f4480e266a5c0d81ffb01d5e91066f0ee7062a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:45:24,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:45:24,408 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:45:24,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:45:24,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:45:24,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:45:24,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:45:24,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:45:24,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:45:24,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:45:24,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:45:24,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:45:24,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:45:24,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:45:24,440 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:45:24,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:45:24,441 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:45:24,441 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:45:24,441 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:45:24,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:45:24,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:45:24,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:45:24,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:45:24,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:45:24,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:45:24,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:45:24,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:45:24,446 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:45:24,446 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:45:24,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:45:24,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:45:24,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:45:24,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:45:24,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:45:24,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:45:24,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:45:24,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:45:24,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:45:24,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:45:24,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:45:24,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:45:24,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:45:24,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35835b17b59c5e920a3c43e288f4480e266a5c0d81ffb01d5e91066f0ee7062a [2024-11-16 09:45:24,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:45:24,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:45:24,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:45:24,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:45:24,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:45:24,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-16 09:45:25,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:45:26,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:45:26,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-16 09:45:26,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bfd3f15/c88ad91e2dc8498f97533fd5bcc1c979/FLAG4688cadd6 [2024-11-16 09:45:26,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bfd3f15/c88ad91e2dc8498f97533fd5bcc1c979 [2024-11-16 09:45:26,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:45:26,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:45:26,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:45:26,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:45:26,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:45:26,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:45:26" (1/1) ... [2024-11-16 09:45:26,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23654221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:26, skipping insertion in model container [2024-11-16 09:45:26,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:45:26" (1/1) ... [2024-11-16 09:45:26,585 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:45:26,844 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[15510,15523] [2024-11-16 09:45:26,897 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[22571,22584] [2024-11-16 09:45:27,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:45:27,338 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:45:27,366 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[15510,15523] [2024-11-16 09:45:27,403 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[22571,22584] [2024-11-16 09:45:27,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:45:27,664 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:45:27,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27 WrapperNode [2024-11-16 09:45:27,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:45:27,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:45:27,665 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:45:27,665 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:45:27,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:27,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:27,949 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5155 [2024-11-16 09:45:27,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:45:27,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:45:27,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:45:27,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:45:27,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:27,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,179 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 09:45:28,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,250 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:45:28,333 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:45:28,333 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:45:28,333 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:45:28,334 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (1/1) ... [2024-11-16 09:45:28,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:45:28,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:28,361 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 09:45:28,363 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 09:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:45:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:45:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:45:28,496 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:45:28,498 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:45:31,704 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3685: havoc calculate_output2_#t~ret42#1; [2024-11-16 09:45:31,704 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5175: havoc calculate_output3_#t~ret43#1; [2024-11-16 09:45:31,704 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2206: havoc calculate_output_#t~ret41#1; [2024-11-16 09:45:31,794 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:45:31,794 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:45:31,816 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:45:31,816 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:45:31,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:45:31 BoogieIcfgContainer [2024-11-16 09:45:31,820 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:45:31,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:45:31,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:45:31,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:45:31,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:45:26" (1/3) ... [2024-11-16 09:45:31,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7985c10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:45:31, skipping insertion in model container [2024-11-16 09:45:31,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:27" (2/3) ... [2024-11-16 09:45:31,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7985c10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:45:31, skipping insertion in model container [2024-11-16 09:45:31,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:45:31" (3/3) ... [2024-11-16 09:45:31,828 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-16 09:45:31,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:45:31,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:45:31,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:45:31,921 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;@ad1036c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:45:31,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:45:31,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 923 states, 920 states have (on average 1.8967391304347827) internal successors, (1745), 922 states have internal predecessors, (1745), 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 09:45:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:45:31,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:31,935 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] [2024-11-16 09:45:31,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:31,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash -806731122, now seen corresponding path program 1 times [2024-11-16 09:45:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773528135] [2024-11-16 09:45:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:32,169 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 09:45:32,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:32,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773528135] [2024-11-16 09:45:32,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773528135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:32,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:32,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:45:32,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999936553] [2024-11-16 09:45:32,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:32,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:45:32,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:45:32,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:45:32,193 INFO L87 Difference]: Start difference. First operand has 923 states, 920 states have (on average 1.8967391304347827) internal successors, (1745), 922 states have internal predecessors, (1745), 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 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 09:45:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:32,259 INFO L93 Difference]: Finished difference Result 1796 states and 3398 transitions. [2024-11-16 09:45:32,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:45:32,263 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2024-11-16 09:45:32,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:32,278 INFO L225 Difference]: With dead ends: 1796 [2024-11-16 09:45:32,278 INFO L226 Difference]: Without dead ends: 855 [2024-11-16 09:45:32,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:45:32,289 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:32,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:32,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-16 09:45:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-16 09:45:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 853 states have (on average 1.887456037514654) internal successors, (1610), 854 states have internal predecessors, (1610), 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 09:45:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1610 transitions. [2024-11-16 09:45:32,356 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1610 transitions. Word has length 28 [2024-11-16 09:45:32,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:32,357 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1610 transitions. [2024-11-16 09:45:32,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 09:45:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1610 transitions. [2024-11-16 09:45:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:45:32,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:32,358 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] [2024-11-16 09:45:32,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:45:32,359 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:32,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1450179885, now seen corresponding path program 1 times [2024-11-16 09:45:32,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:32,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839725041] [2024-11-16 09:45:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:32,523 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 09:45:32,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:32,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839725041] [2024-11-16 09:45:32,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839725041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:32,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:32,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:45:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931698393] [2024-11-16 09:45:32,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:32,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:45:32,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:32,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:45:32,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:32,527 INFO L87 Difference]: Start difference. First operand 855 states and 1610 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 09:45:32,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:32,631 INFO L93 Difference]: Finished difference Result 912 states and 1697 transitions. [2024-11-16 09:45:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:45:32,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2024-11-16 09:45:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:32,637 INFO L225 Difference]: With dead ends: 912 [2024-11-16 09:45:32,638 INFO L226 Difference]: Without dead ends: 855 [2024-11-16 09:45:32,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:32,639 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 0 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:32,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6387 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-16 09:45:32,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-16 09:45:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 853 states have (on average 1.8405627198124268) internal successors, (1570), 854 states have internal predecessors, (1570), 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 09:45:32,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1570 transitions. [2024-11-16 09:45:32,659 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1570 transitions. Word has length 28 [2024-11-16 09:45:32,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:32,660 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1570 transitions. [2024-11-16 09:45:32,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 09:45:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1570 transitions. [2024-11-16 09:45:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 09:45:32,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:32,663 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:32,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:45:32,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:32,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:32,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1382968672, now seen corresponding path program 1 times [2024-11-16 09:45:32,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:32,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656126676] [2024-11-16 09:45:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:32,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:32,790 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 09:45:32,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:32,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656126676] [2024-11-16 09:45:32,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656126676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:32,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:32,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:45:32,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272068171] [2024-11-16 09:45:32,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:32,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:32,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:32,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:32,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:32,796 INFO L87 Difference]: Start difference. First operand 855 states and 1570 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 09:45:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:35,584 INFO L93 Difference]: Finished difference Result 2362 states and 4446 transitions. [2024-11-16 09:45:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:35,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2024-11-16 09:45:35,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:35,590 INFO L225 Difference]: With dead ends: 2362 [2024-11-16 09:45:35,590 INFO L226 Difference]: Without dead ends: 1607 [2024-11-16 09:45:35,591 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 09:45:35,592 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 869 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:35,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 608 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 09:45:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-16 09:45:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1607. [2024-11-16 09:45:35,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1607 states, 1605 states have (on average 1.588785046728972) internal successors, (2550), 1606 states have internal predecessors, (2550), 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 09:45:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1607 states to 1607 states and 2550 transitions. [2024-11-16 09:45:35,614 INFO L78 Accepts]: Start accepts. Automaton has 1607 states and 2550 transitions. Word has length 63 [2024-11-16 09:45:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:35,614 INFO L471 AbstractCegarLoop]: Abstraction has 1607 states and 2550 transitions. [2024-11-16 09:45:35,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 09:45:35,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1607 states and 2550 transitions. [2024-11-16 09:45:35,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:45:35,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:35,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:35,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:45:35,616 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:35,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:35,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1102156321, now seen corresponding path program 1 times [2024-11-16 09:45:35,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:35,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252562489] [2024-11-16 09:45:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:35,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:35,776 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 09:45:35,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:35,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252562489] [2024-11-16 09:45:35,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252562489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:35,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:35,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458827812] [2024-11-16 09:45:35,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:35,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:35,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:35,779 INFO L87 Difference]: Start difference. First operand 1607 states and 2550 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 09:45:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:36,057 INFO L93 Difference]: Finished difference Result 2243 states and 3546 transitions. [2024-11-16 09:45:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:45:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2024-11-16 09:45:36,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:36,069 INFO L225 Difference]: With dead ends: 2243 [2024-11-16 09:45:36,069 INFO L226 Difference]: Without dead ends: 2190 [2024-11-16 09:45:36,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:45:36,073 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 9908 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9908 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:36,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9908 Valid, 3150 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2024-11-16 09:45:36,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1657. [2024-11-16 09:45:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1655 states have (on average 1.5885196374622357) internal successors, (2629), 1656 states have internal predecessors, (2629), 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 09:45:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2629 transitions. [2024-11-16 09:45:36,110 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2629 transitions. Word has length 67 [2024-11-16 09:45:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:36,111 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 2629 transitions. [2024-11-16 09:45:36,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 09:45:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2629 transitions. [2024-11-16 09:45:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:45:36,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:36,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:36,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:45:36,116 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:36,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash 604662915, now seen corresponding path program 1 times [2024-11-16 09:45:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692028705] [2024-11-16 09:45:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:36,432 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 09:45:36,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692028705] [2024-11-16 09:45:36,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692028705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:36,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:36,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:36,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944512176] [2024-11-16 09:45:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:36,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:36,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:36,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:36,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:36,434 INFO L87 Difference]: Start difference. First operand 1657 states and 2629 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 09:45:36,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:36,641 INFO L93 Difference]: Finished difference Result 1763 states and 2793 transitions. [2024-11-16 09:45:36,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:36,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 69 [2024-11-16 09:45:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:36,646 INFO L225 Difference]: With dead ends: 1763 [2024-11-16 09:45:36,646 INFO L226 Difference]: Without dead ends: 1660 [2024-11-16 09:45:36,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:45:36,647 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 3038 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3038 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:36,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3038 Valid, 1972 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-16 09:45:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1657. [2024-11-16 09:45:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1655 states have (on average 1.5879154078549849) internal successors, (2628), 1656 states have internal predecessors, (2628), 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 09:45:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2628 transitions. [2024-11-16 09:45:36,669 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2628 transitions. Word has length 69 [2024-11-16 09:45:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:36,669 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 2628 transitions. [2024-11-16 09:45:36,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 09:45:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2628 transitions. [2024-11-16 09:45:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:45:36,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:36,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:36,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:45:36,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:36,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1006466910, now seen corresponding path program 1 times [2024-11-16 09:45:36,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:36,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889075335] [2024-11-16 09:45:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:36,752 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 09:45:36,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:36,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889075335] [2024-11-16 09:45:36,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889075335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:36,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:36,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:36,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982591358] [2024-11-16 09:45:36,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:36,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:36,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:36,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:36,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:36,756 INFO L87 Difference]: Start difference. First operand 1657 states and 2628 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 09:45:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:36,787 INFO L93 Difference]: Finished difference Result 1851 states and 2930 transitions. [2024-11-16 09:45:36,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:36,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-11-16 09:45:36,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:36,793 INFO L225 Difference]: With dead ends: 1851 [2024-11-16 09:45:36,793 INFO L226 Difference]: Without dead ends: 1748 [2024-11-16 09:45:36,794 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 09:45:36,797 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 1496 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:36,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:36,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2024-11-16 09:45:36,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1743. [2024-11-16 09:45:36,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1741 states have (on average 1.585295807007467) internal successors, (2760), 1742 states have internal predecessors, (2760), 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 09:45:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2760 transitions. [2024-11-16 09:45:36,829 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2760 transitions. Word has length 70 [2024-11-16 09:45:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:36,831 INFO L471 AbstractCegarLoop]: Abstraction has 1743 states and 2760 transitions. [2024-11-16 09:45:36,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 09:45:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2760 transitions. [2024-11-16 09:45:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:36,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:36,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:36,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:45:36,833 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:36,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -694789691, now seen corresponding path program 1 times [2024-11-16 09:45:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:36,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837895387] [2024-11-16 09:45:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:36,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:36,893 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 09:45:36,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:36,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837895387] [2024-11-16 09:45:36,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837895387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:36,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:36,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:36,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052291127] [2024-11-16 09:45:36,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:36,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:36,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:36,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:36,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:36,895 INFO L87 Difference]: Start difference. First operand 1743 states and 2760 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:36,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:36,923 INFO L93 Difference]: Finished difference Result 2105 states and 3318 transitions. [2024-11-16 09:45:36,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:36,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-11-16 09:45:36,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:36,929 INFO L225 Difference]: With dead ends: 2105 [2024-11-16 09:45:36,929 INFO L226 Difference]: Without dead ends: 1916 [2024-11-16 09:45:36,930 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 09:45:36,931 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1509 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:36,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1711 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2024-11-16 09:45:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1913. [2024-11-16 09:45:36,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1911 states have (on average 1.5798011512297228) internal successors, (3019), 1912 states have internal predecessors, (3019), 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 09:45:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 3019 transitions. [2024-11-16 09:45:36,961 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 3019 transitions. Word has length 71 [2024-11-16 09:45:36,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:36,961 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 3019 transitions. [2024-11-16 09:45:36,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 3019 transitions. [2024-11-16 09:45:36,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:36,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:36,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:36,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:45:36,962 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:36,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:36,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1696199419, now seen corresponding path program 1 times [2024-11-16 09:45:36,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:36,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076464297] [2024-11-16 09:45:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:36,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:37,005 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 09:45:37,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:37,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076464297] [2024-11-16 09:45:37,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076464297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:37,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:37,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:37,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095090399] [2024-11-16 09:45:37,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:37,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:37,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:37,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:37,007 INFO L87 Difference]: Start difference. First operand 1913 states and 3019 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:37,030 INFO L93 Difference]: Finished difference Result 2599 states and 4067 transitions. [2024-11-16 09:45:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:37,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-11-16 09:45:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:37,036 INFO L225 Difference]: With dead ends: 2599 [2024-11-16 09:45:37,036 INFO L226 Difference]: Without dead ends: 2240 [2024-11-16 09:45:37,037 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 09:45:37,037 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 1507 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:37,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1713 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:37,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-16 09:45:37,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2237. [2024-11-16 09:45:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2235 states have (on average 1.5682326621923937) internal successors, (3505), 2236 states have internal predecessors, (3505), 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 09:45:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 3505 transitions. [2024-11-16 09:45:37,069 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 3505 transitions. Word has length 71 [2024-11-16 09:45:37,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:37,069 INFO L471 AbstractCegarLoop]: Abstraction has 2237 states and 3505 transitions. [2024-11-16 09:45:37,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 3505 transitions. [2024-11-16 09:45:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:37,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:37,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:37,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:45:37,071 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:37,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:37,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1710649275, now seen corresponding path program 1 times [2024-11-16 09:45:37,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:37,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140530986] [2024-11-16 09:45:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:37,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:37,110 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 09:45:37,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:37,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140530986] [2024-11-16 09:45:37,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140530986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:37,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:37,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958312667] [2024-11-16 09:45:37,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:37,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:37,113 INFO L87 Difference]: Start difference. First operand 2237 states and 3505 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:37,144 INFO L93 Difference]: Finished difference Result 3539 states and 5469 transitions. [2024-11-16 09:45:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-11-16 09:45:37,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:37,153 INFO L225 Difference]: With dead ends: 3539 [2024-11-16 09:45:37,153 INFO L226 Difference]: Without dead ends: 2856 [2024-11-16 09:45:37,154 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 09:45:37,154 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 1505 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:37,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1715 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:37,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2856 states. [2024-11-16 09:45:37,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2856 to 2853. [2024-11-16 09:45:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2851 states have (on average 1.5478779375657663) internal successors, (4413), 2852 states have internal predecessors, (4413), 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 09:45:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4413 transitions. [2024-11-16 09:45:37,197 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4413 transitions. Word has length 71 [2024-11-16 09:45:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:37,198 INFO L471 AbstractCegarLoop]: Abstraction has 2853 states and 4413 transitions. [2024-11-16 09:45:37,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4413 transitions. [2024-11-16 09:45:37,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:37,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:37,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:37,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:45:37,199 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:37,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash 380953477, now seen corresponding path program 1 times [2024-11-16 09:45:37,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:37,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640270657] [2024-11-16 09:45:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:37,278 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 09:45:37,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:37,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640270657] [2024-11-16 09:45:37,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640270657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:37,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:37,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:37,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199960928] [2024-11-16 09:45:37,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:37,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:37,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:37,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:37,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:37,282 INFO L87 Difference]: Start difference. First operand 2853 states and 4413 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:37,326 INFO L93 Difference]: Finished difference Result 5323 states and 8081 transitions. [2024-11-16 09:45:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:37,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-11-16 09:45:37,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:37,337 INFO L225 Difference]: With dead ends: 5323 [2024-11-16 09:45:37,337 INFO L226 Difference]: Without dead ends: 4024 [2024-11-16 09:45:37,340 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 09:45:37,340 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 1503 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:37,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1717 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:37,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2024-11-16 09:45:37,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 4021. [2024-11-16 09:45:37,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 1.5180393132620054) internal successors, (6101), 4020 states have internal predecessors, (6101), 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 09:45:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 6101 transitions. [2024-11-16 09:45:37,410 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 6101 transitions. Word has length 71 [2024-11-16 09:45:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:37,410 INFO L471 AbstractCegarLoop]: Abstraction has 4021 states and 6101 transitions. [2024-11-16 09:45:37,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 6101 transitions. [2024-11-16 09:45:37,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:37,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:37,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:37,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:45:37,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:37,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:37,412 INFO L85 PathProgramCache]: Analyzing trace with hash -143323578, now seen corresponding path program 1 times [2024-11-16 09:45:37,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:37,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058047107] [2024-11-16 09:45:37,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:37,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:37,601 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 09:45:37,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:37,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058047107] [2024-11-16 09:45:37,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058047107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:37,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:37,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238747750] [2024-11-16 09:45:37,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:37,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:37,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:37,603 INFO L87 Difference]: Start difference. First operand 4021 states and 6101 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 09:45:37,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:37,675 INFO L93 Difference]: Finished difference Result 4120 states and 6231 transitions. [2024-11-16 09:45:37,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:37,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 71 [2024-11-16 09:45:37,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:37,690 INFO L225 Difference]: With dead ends: 4120 [2024-11-16 09:45:37,690 INFO L226 Difference]: Without dead ends: 4117 [2024-11-16 09:45:37,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:37,693 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 0 mSDsluCounter, 9371 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10935 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:37,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10935 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2024-11-16 09:45:37,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4117. [2024-11-16 09:45:37,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4117 states, 4115 states have (on average 1.5020656136087485) internal successors, (6181), 4116 states have internal predecessors, (6181), 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 09:45:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 6181 transitions. [2024-11-16 09:45:37,768 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 6181 transitions. Word has length 71 [2024-11-16 09:45:37,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:37,768 INFO L471 AbstractCegarLoop]: Abstraction has 4117 states and 6181 transitions. [2024-11-16 09:45:37,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 09:45:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 6181 transitions. [2024-11-16 09:45:37,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:37,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:37,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:37,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:45:37,770 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:37,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:37,770 INFO L85 PathProgramCache]: Analyzing trace with hash -412715387, now seen corresponding path program 1 times [2024-11-16 09:45:37,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:37,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211377542] [2024-11-16 09:45:37,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:37,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:37,809 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 09:45:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:37,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211377542] [2024-11-16 09:45:37,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211377542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:37,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:37,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:37,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675439177] [2024-11-16 09:45:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:37,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:37,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:37,815 INFO L87 Difference]: Start difference. First operand 4117 states and 6181 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:37,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:37,879 INFO L93 Difference]: Finished difference Result 8987 states and 13161 transitions. [2024-11-16 09:45:37,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:37,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-11-16 09:45:37,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:37,897 INFO L225 Difference]: With dead ends: 8987 [2024-11-16 09:45:37,900 INFO L226 Difference]: Without dead ends: 6424 [2024-11-16 09:45:37,904 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 09:45:37,904 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 1511 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:37,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1717 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2024-11-16 09:45:37,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 6421. [2024-11-16 09:45:37,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6421 states, 6419 states have (on average 1.4614425923040972) internal successors, (9381), 6420 states have internal predecessors, (9381), 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 09:45:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6421 states to 6421 states and 9381 transitions. [2024-11-16 09:45:38,049 INFO L78 Accepts]: Start accepts. Automaton has 6421 states and 9381 transitions. Word has length 71 [2024-11-16 09:45:38,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:38,049 INFO L471 AbstractCegarLoop]: Abstraction has 6421 states and 9381 transitions. [2024-11-16 09:45:38,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 09:45:38,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6421 states and 9381 transitions. [2024-11-16 09:45:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:45:38,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:38,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:45:38,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:45:38,050 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:38,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1728012283, now seen corresponding path program 1 times [2024-11-16 09:45:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:38,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642016268] [2024-11-16 09:45:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:38,098 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 09:45:38,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:38,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642016268] [2024-11-16 09:45:38,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642016268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:38,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:38,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850790745] [2024-11-16 09:45:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:38,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:38,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:38,099 INFO L87 Difference]: Start difference. First operand 6421 states and 9381 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 09:45:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:38,183 INFO L93 Difference]: Finished difference Result 11551 states and 16750 transitions. [2024-11-16 09:45:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:38,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2024-11-16 09:45:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:38,195 INFO L225 Difference]: With dead ends: 11551 [2024-11-16 09:45:38,195 INFO L226 Difference]: Without dead ends: 8795 [2024-11-16 09:45:38,199 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 09:45:38,200 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 1510 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:38,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:38,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-11-16 09:45:38,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8792. [2024-11-16 09:45:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8792 states, 8790 states have (on average 1.4425483503981797) internal successors, (12680), 8791 states have internal predecessors, (12680), 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 09:45:38,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8792 states to 8792 states and 12680 transitions. [2024-11-16 09:45:38,337 INFO L78 Accepts]: Start accepts. Automaton has 8792 states and 12680 transitions. Word has length 73 [2024-11-16 09:45:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:38,337 INFO L471 AbstractCegarLoop]: Abstraction has 8792 states and 12680 transitions. [2024-11-16 09:45:38,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 09:45:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 8792 states and 12680 transitions. [2024-11-16 09:45:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:38,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:38,340 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:38,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:45:38,340 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:38,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash 449686707, now seen corresponding path program 1 times [2024-11-16 09:45:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105125898] [2024-11-16 09:45:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:38,470 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:45:38,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:38,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105125898] [2024-11-16 09:45:38,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105125898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:38,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:38,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:38,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078725611] [2024-11-16 09:45:38,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:38,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:38,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:38,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:38,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:38,472 INFO L87 Difference]: Start difference. First operand 8792 states and 12680 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 09:45:39,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:39,035 INFO L93 Difference]: Finished difference Result 53741 states and 76022 transitions. [2024-11-16 09:45:39,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:39,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:39,098 INFO L225 Difference]: With dead ends: 53741 [2024-11-16 09:45:39,098 INFO L226 Difference]: Without dead ends: 46506 [2024-11-16 09:45:39,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:39,118 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 8142 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8142 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:39,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8142 Valid, 3937 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:39,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46506 states. [2024-11-16 09:45:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46506 to 16024. [2024-11-16 09:45:39,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16024 states, 16022 states have (on average 1.4225440019972537) internal successors, (22792), 16023 states have internal predecessors, (22792), 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 09:45:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16024 states to 16024 states and 22792 transitions. [2024-11-16 09:45:39,680 INFO L78 Accepts]: Start accepts. Automaton has 16024 states and 22792 transitions. Word has length 94 [2024-11-16 09:45:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:39,680 INFO L471 AbstractCegarLoop]: Abstraction has 16024 states and 22792 transitions. [2024-11-16 09:45:39,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 09:45:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 16024 states and 22792 transitions. [2024-11-16 09:45:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:39,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:39,685 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:39,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:45:39,686 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:39,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash -551723021, now seen corresponding path program 1 times [2024-11-16 09:45:39,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:39,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207657239] [2024-11-16 09:45:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:39,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:45:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:39,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207657239] [2024-11-16 09:45:39,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207657239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:39,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:39,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522303646] [2024-11-16 09:45:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:39,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:39,864 INFO L87 Difference]: Start difference. First operand 16024 states and 22792 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:40,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:40,534 INFO L93 Difference]: Finished difference Result 60973 states and 86134 transitions. [2024-11-16 09:45:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:40,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:40,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:40,604 INFO L225 Difference]: With dead ends: 60973 [2024-11-16 09:45:40,604 INFO L226 Difference]: Without dead ends: 53738 [2024-11-16 09:45:40,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:40,620 INFO L432 NwaCegarLoop]: 1648 mSDtfsCounter, 8193 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8193 SdHoareTripleChecker+Valid, 3855 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:40,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8193 Valid, 3855 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53738 states. [2024-11-16 09:45:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53738 to 26904. [2024-11-16 09:45:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26904 states, 26902 states have (on average 1.4086685004832356) internal successors, (37896), 26903 states have internal predecessors, (37896), 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 09:45:41,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26904 states to 26904 states and 37896 transitions. [2024-11-16 09:45:41,276 INFO L78 Accepts]: Start accepts. Automaton has 26904 states and 37896 transitions. Word has length 94 [2024-11-16 09:45:41,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:41,277 INFO L471 AbstractCegarLoop]: Abstraction has 26904 states and 37896 transitions. [2024-11-16 09:45:41,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:41,277 INFO L276 IsEmpty]: Start isEmpty. Operand 26904 states and 37896 transitions. [2024-11-16 09:45:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:41,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:41,280 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:41,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:45:41,280 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:41,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash -566172877, now seen corresponding path program 1 times [2024-11-16 09:45:41,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:41,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521259549] [2024-11-16 09:45:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:45:41,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:41,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521259549] [2024-11-16 09:45:41,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521259549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:41,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:41,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:41,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542605204] [2024-11-16 09:45:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:41,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:41,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:41,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:41,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:41,435 INFO L87 Difference]: Start difference. First operand 26904 states and 37896 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 09:45:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:42,224 INFO L93 Difference]: Finished difference Result 68205 states and 96246 transitions. [2024-11-16 09:45:42,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:42,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:42,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:42,296 INFO L225 Difference]: With dead ends: 68205 [2024-11-16 09:45:42,296 INFO L226 Difference]: Without dead ends: 60970 [2024-11-16 09:45:42,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:42,315 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 8245 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8245 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:42,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8245 Valid, 3856 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60970 states. [2024-11-16 09:45:43,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60970 to 34136. [2024-11-16 09:45:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34136 states, 34134 states have (on average 1.4064569051385716) internal successors, (48008), 34135 states have internal predecessors, (48008), 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 09:45:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34136 states to 34136 states and 48008 transitions. [2024-11-16 09:45:43,382 INFO L78 Accepts]: Start accepts. Automaton has 34136 states and 48008 transitions. Word has length 94 [2024-11-16 09:45:43,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:43,383 INFO L471 AbstractCegarLoop]: Abstraction has 34136 states and 48008 transitions. [2024-11-16 09:45:43,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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 09:45:43,383 INFO L276 IsEmpty]: Start isEmpty. Operand 34136 states and 48008 transitions. [2024-11-16 09:45:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:43,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:43,387 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:43,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:45:43,387 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:43,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1525429875, now seen corresponding path program 1 times [2024-11-16 09:45:43,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:43,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089243511] [2024-11-16 09:45:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:43,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:45:43,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:43,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089243511] [2024-11-16 09:45:43,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089243511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:43,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:43,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:43,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693175213] [2024-11-16 09:45:43,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:43,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:43,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:43,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:43,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:43,590 INFO L87 Difference]: Start difference. First operand 34136 states and 48008 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 09:45:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:44,592 INFO L93 Difference]: Finished difference Result 75437 states and 106358 transitions. [2024-11-16 09:45:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:44,674 INFO L225 Difference]: With dead ends: 75437 [2024-11-16 09:45:44,675 INFO L226 Difference]: Without dead ends: 68202 [2024-11-16 09:45:44,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:44,700 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 8142 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8142 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:44,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8142 Valid, 3963 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68202 states. [2024-11-16 09:45:45,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68202 to 41368. [2024-11-16 09:45:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41368 states, 41366 states have (on average 1.40501861432094) internal successors, (58120), 41367 states have internal predecessors, (58120), 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 09:45:45,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41368 states to 41368 states and 58120 transitions. [2024-11-16 09:45:45,622 INFO L78 Accepts]: Start accepts. Automaton has 41368 states and 58120 transitions. Word has length 94 [2024-11-16 09:45:45,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:45,622 INFO L471 AbstractCegarLoop]: Abstraction has 41368 states and 58120 transitions. [2024-11-16 09:45:45,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 09:45:45,623 INFO L276 IsEmpty]: Start isEmpty. Operand 41368 states and 58120 transitions. [2024-11-16 09:45:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:45,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:45,626 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:45,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:45:45,626 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:45,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 731761011, now seen corresponding path program 1 times [2024-11-16 09:45:45,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:45,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410180219] [2024-11-16 09:45:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:45,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:45:45,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:45,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410180219] [2024-11-16 09:45:45,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410180219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:45,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:45,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:45,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917784328] [2024-11-16 09:45:45,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:45,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:45,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:45,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:45,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:45,757 INFO L87 Difference]: Start difference. First operand 41368 states and 58120 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 09:45:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:46,858 INFO L93 Difference]: Finished difference Result 82669 states and 116470 transitions. [2024-11-16 09:45:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:46,944 INFO L225 Difference]: With dead ends: 82669 [2024-11-16 09:45:46,945 INFO L226 Difference]: Without dead ends: 75434 [2024-11-16 09:45:46,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:46,971 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 8083 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8083 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:46,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8083 Valid, 4090 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:47,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75434 states. [2024-11-16 09:45:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75434 to 48600. [2024-11-16 09:45:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48600 states, 48598 states have (on average 1.4040083954072184) internal successors, (68232), 48599 states have internal predecessors, (68232), 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 09:45:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48600 states to 48600 states and 68232 transitions. [2024-11-16 09:45:48,561 INFO L78 Accepts]: Start accepts. Automaton has 48600 states and 68232 transitions. Word has length 94 [2024-11-16 09:45:48,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:48,561 INFO L471 AbstractCegarLoop]: Abstraction has 48600 states and 68232 transitions. [2024-11-16 09:45:48,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 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 09:45:48,561 INFO L276 IsEmpty]: Start isEmpty. Operand 48600 states and 68232 transitions. [2024-11-16 09:45:48,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:48,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:48,567 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:48,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:45:48,567 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:48,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash 646589077, now seen corresponding path program 1 times [2024-11-16 09:45:48,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:48,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573675556] [2024-11-16 09:45:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:48,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:48,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573675556] [2024-11-16 09:45:48,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573675556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:48,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:48,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:48,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199601982] [2024-11-16 09:45:48,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:48,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:48,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:48,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:48,680 INFO L87 Difference]: Start difference. First operand 48600 states and 68232 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 09:45:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:49,366 INFO L93 Difference]: Finished difference Result 81910 states and 115269 transitions. [2024-11-16 09:45:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:49,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2024-11-16 09:45:49,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:49,403 INFO L225 Difference]: With dead ends: 81910 [2024-11-16 09:45:49,404 INFO L226 Difference]: Without dead ends: 34867 [2024-11-16 09:45:49,435 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 09:45:49,435 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 59 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:49,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3175 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:49,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34867 states. [2024-11-16 09:45:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34867 to 34864. [2024-11-16 09:45:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34864 states, 34862 states have (on average 1.4080660891515118) internal successors, (49088), 34863 states have internal predecessors, (49088), 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 09:45:50,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34864 states to 34864 states and 49088 transitions. [2024-11-16 09:45:50,309 INFO L78 Accepts]: Start accepts. Automaton has 34864 states and 49088 transitions. Word has length 96 [2024-11-16 09:45:50,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:50,310 INFO L471 AbstractCegarLoop]: Abstraction has 34864 states and 49088 transitions. [2024-11-16 09:45:50,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 09:45:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 34864 states and 49088 transitions. [2024-11-16 09:45:50,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:50,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:50,312 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:50,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:45:50,312 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:50,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:50,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1397821581, now seen corresponding path program 1 times [2024-11-16 09:45:50,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:50,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115943831] [2024-11-16 09:45:50,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:50,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:45:50,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:50,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115943831] [2024-11-16 09:45:50,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115943831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:50,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:50,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526546898] [2024-11-16 09:45:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:50,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:50,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:50,449 INFO L87 Difference]: Start difference. First operand 34864 states and 49088 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:51,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:51,596 INFO L93 Difference]: Finished difference Result 65605 states and 92494 transitions. [2024-11-16 09:45:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:51,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-16 09:45:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:51,666 INFO L225 Difference]: With dead ends: 65605 [2024-11-16 09:45:51,666 INFO L226 Difference]: Without dead ends: 60482 [2024-11-16 09:45:51,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:51,683 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8108 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:51,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8108 Valid, 4030 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:51,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60482 states. [2024-11-16 09:45:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60482 to 39984. [2024-11-16 09:45:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39984 states, 39982 states have (on average 1.4070331649242158) internal successors, (56256), 39983 states have internal predecessors, (56256), 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 09:45:52,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39984 states to 39984 states and 56256 transitions. [2024-11-16 09:45:52,849 INFO L78 Accepts]: Start accepts. Automaton has 39984 states and 56256 transitions. Word has length 96 [2024-11-16 09:45:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:52,849 INFO L471 AbstractCegarLoop]: Abstraction has 39984 states and 56256 transitions. [2024-11-16 09:45:52,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 39984 states and 56256 transitions. [2024-11-16 09:45:52,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:45:52,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:52,853 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:52,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:45:52,853 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:52,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:52,853 INFO L85 PathProgramCache]: Analyzing trace with hash -987382443, now seen corresponding path program 1 times [2024-11-16 09:45:52,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:52,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4588818] [2024-11-16 09:45:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:52,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:52,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:52,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4588818] [2024-11-16 09:45:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4588818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:52,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:52,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:52,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495865830] [2024-11-16 09:45:52,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:52,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:52,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:52,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:52,922 INFO L87 Difference]: Start difference. First operand 39984 states and 56256 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 09:45:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:53,309 INFO L93 Difference]: Finished difference Result 59190 states and 83140 transitions. [2024-11-16 09:45:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:53,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2024-11-16 09:45:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:53,328 INFO L225 Difference]: With dead ends: 59190 [2024-11-16 09:45:53,329 INFO L226 Difference]: Without dead ends: 20787 [2024-11-16 09:45:53,349 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 09:45:53,350 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 52 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:53,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3160 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20787 states. [2024-11-16 09:45:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20787 to 20784. [2024-11-16 09:45:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20784 states, 20782 states have (on average 1.4019824848426523) internal successors, (29136), 20783 states have internal predecessors, (29136), 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 09:45:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20784 states to 20784 states and 29136 transitions. [2024-11-16 09:45:53,726 INFO L78 Accepts]: Start accepts. Automaton has 20784 states and 29136 transitions. Word has length 98 [2024-11-16 09:45:53,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:53,727 INFO L471 AbstractCegarLoop]: Abstraction has 20784 states and 29136 transitions. [2024-11-16 09:45:53,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 09:45:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 20784 states and 29136 transitions. [2024-11-16 09:45:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:45:53,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:53,729 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:53,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:45:53,729 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:53,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:53,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1359947049, now seen corresponding path program 1 times [2024-11-16 09:45:53,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:53,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193690409] [2024-11-16 09:45:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:53,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:53,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:53,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193690409] [2024-11-16 09:45:53,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193690409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:53,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:53,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:53,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680172294] [2024-11-16 09:45:53,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:53,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:53,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:53,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:53,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:53,880 INFO L87 Difference]: Start difference. First operand 20784 states and 29136 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 09:45:54,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:54,043 INFO L93 Difference]: Finished difference Result 30390 states and 42460 transitions. [2024-11-16 09:45:54,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:54,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2024-11-16 09:45:54,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:54,054 INFO L225 Difference]: With dead ends: 30390 [2024-11-16 09:45:54,055 INFO L226 Difference]: Without dead ends: 11187 [2024-11-16 09:45:54,065 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 09:45:54,066 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 47 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:54,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3145 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:54,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11187 states. [2024-11-16 09:45:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11187 to 11184. [2024-11-16 09:45:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11184 states, 11182 states have (on average 1.4036844929350742) internal successors, (15696), 11183 states have internal predecessors, (15696), 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 09:45:54,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11184 states to 11184 states and 15696 transitions. [2024-11-16 09:45:54,261 INFO L78 Accepts]: Start accepts. Automaton has 11184 states and 15696 transitions. Word has length 100 [2024-11-16 09:45:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:54,261 INFO L471 AbstractCegarLoop]: Abstraction has 11184 states and 15696 transitions. [2024-11-16 09:45:54,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 09:45:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 11184 states and 15696 transitions. [2024-11-16 09:45:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:45:54,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:54,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:54,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:45:54,264 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:54,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash -975182626, now seen corresponding path program 1 times [2024-11-16 09:45:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:54,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218862691] [2024-11-16 09:45:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:54,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:54,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218862691] [2024-11-16 09:45:54,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218862691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:54,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:54,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:54,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018900169] [2024-11-16 09:45:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:54,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:54,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:54,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:54,328 INFO L87 Difference]: Start difference. First operand 11184 states and 15696 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 09:45:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:54,418 INFO L93 Difference]: Finished difference Result 15990 states and 22300 transitions. [2024-11-16 09:45:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:54,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2024-11-16 09:45:54,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:54,426 INFO L225 Difference]: With dead ends: 15990 [2024-11-16 09:45:54,426 INFO L226 Difference]: Without dead ends: 6387 [2024-11-16 09:45:54,431 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 09:45:54,431 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 44 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:54,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:54,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2024-11-16 09:45:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6384. [2024-11-16 09:45:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6384 states, 6382 states have (on average 1.4158570980883736) internal successors, (9036), 6383 states have internal predecessors, (9036), 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 09:45:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6384 states to 6384 states and 9036 transitions. [2024-11-16 09:45:54,540 INFO L78 Accepts]: Start accepts. Automaton has 6384 states and 9036 transitions. Word has length 102 [2024-11-16 09:45:54,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:54,540 INFO L471 AbstractCegarLoop]: Abstraction has 6384 states and 9036 transitions. [2024-11-16 09:45:54,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 09:45:54,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6384 states and 9036 transitions. [2024-11-16 09:45:54,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:45:54,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:54,542 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:54,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:45:54,542 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:54,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:54,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1599975429, now seen corresponding path program 1 times [2024-11-16 09:45:54,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:54,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991641919] [2024-11-16 09:45:54,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:54,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:54,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:54,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991641919] [2024-11-16 09:45:54,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991641919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:54,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:54,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:54,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42621036] [2024-11-16 09:45:54,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:54,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:54,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:54,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:54,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:54,613 INFO L87 Difference]: Start difference. First operand 6384 states and 9036 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 09:45:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:54,708 INFO L93 Difference]: Finished difference Result 8790 states and 12310 transitions. [2024-11-16 09:45:54,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:54,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2024-11-16 09:45:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:54,713 INFO L225 Difference]: With dead ends: 8790 [2024-11-16 09:45:54,713 INFO L226 Difference]: Without dead ends: 3987 [2024-11-16 09:45:54,714 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 09:45:54,715 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 41 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:54,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3115 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3987 states. [2024-11-16 09:45:54,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3987 to 3984. [2024-11-16 09:45:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3982 states have (on average 1.4404821697639376) internal successors, (5736), 3983 states have internal predecessors, (5736), 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 09:45:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 5736 transitions. [2024-11-16 09:45:54,809 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 5736 transitions. Word has length 104 [2024-11-16 09:45:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:54,810 INFO L471 AbstractCegarLoop]: Abstraction has 3984 states and 5736 transitions. [2024-11-16 09:45:54,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 09:45:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 5736 transitions. [2024-11-16 09:45:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:45:54,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:54,811 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:54,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:45:54,812 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:54,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:54,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2124065868, now seen corresponding path program 1 times [2024-11-16 09:45:54,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:54,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815405856] [2024-11-16 09:45:54,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:54,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:54,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:54,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815405856] [2024-11-16 09:45:54,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815405856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:54,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:54,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:54,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350439448] [2024-11-16 09:45:54,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:54,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:54,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:54,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:54,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:54,899 INFO L87 Difference]: Start difference. First operand 3984 states and 5736 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 09:45:54,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:54,950 INFO L93 Difference]: Finished difference Result 5190 states and 7360 transitions. [2024-11-16 09:45:54,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:54,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 106 [2024-11-16 09:45:54,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:54,955 INFO L225 Difference]: With dead ends: 5190 [2024-11-16 09:45:54,955 INFO L226 Difference]: Without dead ends: 2787 [2024-11-16 09:45:54,956 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 09:45:54,957 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 38 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:54,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3100 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:54,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2024-11-16 09:45:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2784. [2024-11-16 09:45:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2782 states have (on average 1.47411933860532) internal successors, (4101), 2783 states have internal predecessors, (4101), 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 09:45:55,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 4101 transitions. [2024-11-16 09:45:55,014 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 4101 transitions. Word has length 106 [2024-11-16 09:45:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:55,015 INFO L471 AbstractCegarLoop]: Abstraction has 2784 states and 4101 transitions. [2024-11-16 09:45:55,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 09:45:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 4101 transitions. [2024-11-16 09:45:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:45:55,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:55,016 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:55,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:45:55,017 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:55,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1444497843, now seen corresponding path program 1 times [2024-11-16 09:45:55,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:55,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596641043] [2024-11-16 09:45:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:55,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:55,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:55,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596641043] [2024-11-16 09:45:55,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596641043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:55,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465815405] [2024-11-16 09:45:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:55,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:55,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:55,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:45:55,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:45:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:55,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-16 09:45:55,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:57,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:59,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465815405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:59,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:59,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 17] total 38 [2024-11-16 09:45:59,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286544677] [2024-11-16 09:45:59,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:59,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-16 09:45:59,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:59,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-16 09:45:59,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1161, Unknown=0, NotChecked=0, Total=1406 [2024-11-16 09:45:59,021 INFO L87 Difference]: Start difference. First operand 2784 states and 4101 transitions. Second operand has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 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 09:46:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:01,272 INFO L93 Difference]: Finished difference Result 8852 states and 12199 transitions. [2024-11-16 09:46:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-16 09:46:01,272 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 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 108 [2024-11-16 09:46:01,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:01,279 INFO L225 Difference]: With dead ends: 8852 [2024-11-16 09:46:01,279 INFO L226 Difference]: Without dead ends: 7649 [2024-11-16 09:46:01,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1495, Invalid=4985, Unknown=0, NotChecked=0, Total=6480 [2024-11-16 09:46:01,282 INFO L432 NwaCegarLoop]: 1560 mSDtfsCounter, 22184 mSDsluCounter, 14385 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22184 SdHoareTripleChecker+Valid, 15945 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:01,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22184 Valid, 15945 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:46:01,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7649 states. [2024-11-16 09:46:01,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7649 to 5162. [2024-11-16 09:46:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5162 states, 5160 states have (on average 1.3941860465116278) internal successors, (7194), 5161 states have internal predecessors, (7194), 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 09:46:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5162 states to 5162 states and 7194 transitions. [2024-11-16 09:46:01,384 INFO L78 Accepts]: Start accepts. Automaton has 5162 states and 7194 transitions. Word has length 108 [2024-11-16 09:46:01,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:01,385 INFO L471 AbstractCegarLoop]: Abstraction has 5162 states and 7194 transitions. [2024-11-16 09:46:01,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 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 09:46:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5162 states and 7194 transitions. [2024-11-16 09:46:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 09:46:01,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:01,386 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:46:01,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 09:46:01,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 09:46:01,587 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:01,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash 725327129, now seen corresponding path program 1 times [2024-11-16 09:46:01,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:01,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361509320] [2024-11-16 09:46:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:01,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:01,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:01,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:01,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361509320] [2024-11-16 09:46:01,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361509320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:01,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272313881] [2024-11-16 09:46:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:01,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:01,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:01,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:01,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:46:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:01,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 09:46:01,933 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:02,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:03,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272313881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:03,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:03,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 30 [2024-11-16 09:46:03,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227362805] [2024-11-16 09:46:03,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:03,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 09:46:03,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:03,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 09:46:03,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2024-11-16 09:46:03,301 INFO L87 Difference]: Start difference. First operand 5162 states and 7194 transitions. Second operand has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 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 09:46:04,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:04,067 INFO L93 Difference]: Finished difference Result 12585 states and 16983 transitions. [2024-11-16 09:46:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 09:46:04,068 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 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 109 [2024-11-16 09:46:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:04,077 INFO L225 Difference]: With dead ends: 12585 [2024-11-16 09:46:04,077 INFO L226 Difference]: Without dead ends: 9004 [2024-11-16 09:46:04,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=468, Invalid=1512, Unknown=0, NotChecked=0, Total=1980 [2024-11-16 09:46:04,081 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 16593 mSDsluCounter, 6721 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16593 SdHoareTripleChecker+Valid, 8269 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:04,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16593 Valid, 8269 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 09:46:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9004 states. [2024-11-16 09:46:04,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9004 to 8912. [2024-11-16 09:46:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8912 states, 8910 states have (on average 1.3491582491582492) internal successors, (12021), 8911 states have internal predecessors, (12021), 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 09:46:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8912 states to 8912 states and 12021 transitions. [2024-11-16 09:46:04,268 INFO L78 Accepts]: Start accepts. Automaton has 8912 states and 12021 transitions. Word has length 109 [2024-11-16 09:46:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:04,268 INFO L471 AbstractCegarLoop]: Abstraction has 8912 states and 12021 transitions. [2024-11-16 09:46:04,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 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 09:46:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 8912 states and 12021 transitions. [2024-11-16 09:46:04,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 09:46:04,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:04,270 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:46:04,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 09:46:04,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 09:46:04,471 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:04,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash 87373779, now seen corresponding path program 1 times [2024-11-16 09:46:04,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:04,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013999587] [2024-11-16 09:46:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:04,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:04,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:04,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013999587] [2024-11-16 09:46:04,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013999587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:04,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885577758] [2024-11-16 09:46:04,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:04,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:04,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:04,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:04,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:46:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:05,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:46:05,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:05,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:06,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885577758] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:06,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:06,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-16 09:46:06,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986001014] [2024-11-16 09:46:06,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:06,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 09:46:06,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:06,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 09:46:06,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:46:06,197 INFO L87 Difference]: Start difference. First operand 8912 states and 12021 transitions. Second operand has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 states have internal predecessors, (307), 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 09:46:08,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:08,221 INFO L93 Difference]: Finished difference Result 37687 states and 49918 transitions. [2024-11-16 09:46:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-16 09:46:08,222 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 states have internal predecessors, (307), 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 109 [2024-11-16 09:46:08,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:08,255 INFO L225 Difference]: With dead ends: 37687 [2024-11-16 09:46:08,255 INFO L226 Difference]: Without dead ends: 30356 [2024-11-16 09:46:08,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=751, Invalid=3031, Unknown=0, NotChecked=0, Total=3782 [2024-11-16 09:46:08,269 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 22492 mSDsluCounter, 8411 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22492 SdHoareTripleChecker+Valid, 9954 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:08,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22492 Valid, 9954 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:46:08,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30356 states. [2024-11-16 09:46:09,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30356 to 30172. [2024-11-16 09:46:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30172 states, 30170 states have (on average 1.3071594298972489) internal successors, (39437), 30171 states have internal predecessors, (39437), 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 09:46:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30172 states to 30172 states and 39437 transitions. [2024-11-16 09:46:09,260 INFO L78 Accepts]: Start accepts. Automaton has 30172 states and 39437 transitions. Word has length 109 [2024-11-16 09:46:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:09,261 INFO L471 AbstractCegarLoop]: Abstraction has 30172 states and 39437 transitions. [2024-11-16 09:46:09,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 states have internal predecessors, (307), 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 09:46:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 30172 states and 39437 transitions. [2024-11-16 09:46:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 09:46:09,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:09,264 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:46:09,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 09:46:09,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:09,465 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:09,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1385757684, now seen corresponding path program 1 times [2024-11-16 09:46:09,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:09,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501807348] [2024-11-16 09:46:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:09,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:09,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:09,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501807348] [2024-11-16 09:46:09,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501807348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:09,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071442972] [2024-11-16 09:46:09,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:09,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:09,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:09,833 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:09,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:46:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:09,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 09:46:09,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:11,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071442972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:12,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:12,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 15] total 39 [2024-11-16 09:46:12,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748016637] [2024-11-16 09:46:12,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:12,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-16 09:46:12,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:12,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-16 09:46:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1330, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 09:46:12,947 INFO L87 Difference]: Start difference. First operand 30172 states and 39437 transitions. Second operand has 39 states, 39 states have (on average 7.6923076923076925) internal successors, (300), 39 states have internal predecessors, (300), 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 09:46:26,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:26,454 INFO L93 Difference]: Finished difference Result 184781 states and 239784 transitions. [2024-11-16 09:46:26,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-16 09:46:26,455 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.6923076923076925) internal successors, (300), 39 states have internal predecessors, (300), 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 111 [2024-11-16 09:46:26,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:26,600 INFO L225 Difference]: With dead ends: 184781 [2024-11-16 09:46:26,600 INFO L226 Difference]: Without dead ends: 156190 [2024-11-16 09:46:26,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11995 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=4829, Invalid=28113, Unknown=0, NotChecked=0, Total=32942 [2024-11-16 09:46:26,635 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 27258 mSDsluCounter, 19789 mSDsCounter, 0 mSdLazyCounter, 3220 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27258 SdHoareTripleChecker+Valid, 21338 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 3220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:26,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27258 Valid, 21338 Invalid, 3338 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [118 Valid, 3220 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:46:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156190 states. [2024-11-16 09:46:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156190 to 61446. [2024-11-16 09:46:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61446 states, 61444 states have (on average 1.2922010285788685) internal successors, (79398), 61445 states have internal predecessors, (79398), 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 09:46:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61446 states to 61446 states and 79398 transitions. [2024-11-16 09:46:28,649 INFO L78 Accepts]: Start accepts. Automaton has 61446 states and 79398 transitions. Word has length 111 [2024-11-16 09:46:28,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:28,649 INFO L471 AbstractCegarLoop]: Abstraction has 61446 states and 79398 transitions. [2024-11-16 09:46:28,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.6923076923076925) internal successors, (300), 39 states have internal predecessors, (300), 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 09:46:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 61446 states and 79398 transitions. [2024-11-16 09:46:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 09:46:28,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:28,653 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:46:28,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:46:28,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 09:46:28,853 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:28,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1873970126, now seen corresponding path program 1 times [2024-11-16 09:46:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:28,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381360362] [2024-11-16 09:46:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:29,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:29,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381360362] [2024-11-16 09:46:29,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381360362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:29,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197860558] [2024-11-16 09:46:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:29,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:29,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:29,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:29,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:46:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:29,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:46:29,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:29,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:30,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197860558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:30,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:30,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-16 09:46:30,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129328597] [2024-11-16 09:46:30,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:30,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 09:46:30,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:30,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 09:46:30,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-16 09:46:30,133 INFO L87 Difference]: Start difference. First operand 61446 states and 79398 transitions. Second operand has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 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 09:46:33,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:33,564 INFO L93 Difference]: Finished difference Result 173931 states and 223576 transitions. [2024-11-16 09:46:33,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:46:33,565 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 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 111 [2024-11-16 09:46:33,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:33,688 INFO L225 Difference]: With dead ends: 173931 [2024-11-16 09:46:33,688 INFO L226 Difference]: Without dead ends: 114066 [2024-11-16 09:46:33,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:46:33,719 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 18319 mSDsluCounter, 5017 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18319 SdHoareTripleChecker+Valid, 6556 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:33,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18319 Valid, 6556 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:46:33,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114066 states. [2024-11-16 09:46:37,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114066 to 114060. [2024-11-16 09:46:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114060 states, 114058 states have (on average 1.2809973872941836) internal successors, (146108), 114059 states have internal predecessors, (146108), 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 09:46:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114060 states to 114060 states and 146108 transitions. [2024-11-16 09:46:37,206 INFO L78 Accepts]: Start accepts. Automaton has 114060 states and 146108 transitions. Word has length 111 [2024-11-16 09:46:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:37,207 INFO L471 AbstractCegarLoop]: Abstraction has 114060 states and 146108 transitions. [2024-11-16 09:46:37,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 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 09:46:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 114060 states and 146108 transitions. [2024-11-16 09:46:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 09:46:37,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:37,211 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:46:37,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 09:46:37,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:37,412 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:37,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:37,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1769575127, now seen corresponding path program 1 times [2024-11-16 09:46:37,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:37,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088867475] [2024-11-16 09:46:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:37,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:38,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:38,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:38,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088867475] [2024-11-16 09:46:38,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088867475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:38,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458497536] [2024-11-16 09:46:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:38,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:38,388 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:38,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:46:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:38,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 09:46:38,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:39,408 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:39,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:40,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458497536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:40,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:40,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 17] total 41 [2024-11-16 09:46:40,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066650332] [2024-11-16 09:46:40,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:40,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-16 09:46:40,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-16 09:46:40,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1471, Unknown=0, NotChecked=0, Total=1640 [2024-11-16 09:46:40,396 INFO L87 Difference]: Start difference. First operand 114060 states and 146108 transitions. Second operand has 41 states, 41 states have (on average 7.7560975609756095) internal successors, (318), 41 states have internal predecessors, (318), 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)