./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.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.7.ufo.UNBOUNDED.pals+Problem12_label03.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 2bcf8e94e45f6297ffcab2cc85820f358b499c9f0c3c1268c03065e80498ea32 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:48:09,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:48:09,752 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:48:09,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:48:09,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:48:09,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:48:09,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:48:09,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:48:09,783 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:48:09,784 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:48:09,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:48:09,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:48:09,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:48:09,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:48:09,786 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:48:09,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:48:09,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:48:09,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:48:09,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:48:09,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:48:09,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:48:09,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:48:09,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:48:09,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:48:09,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:48:09,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:48:09,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:48:09,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:48:09,793 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:48:09,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:48:09,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:48:09,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:48:09,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:48:09,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:48:09,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:48:09,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:48:09,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:48:09,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:48:09,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:48:09,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:48:09,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:48:09,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:48:09,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bcf8e94e45f6297ffcab2cc85820f358b499c9f0c3c1268c03065e80498ea32 [2024-11-16 09:48:10,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:48:10,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:48:10,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:48:10,050 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:48:10,050 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:48:10,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-16 09:48:11,390 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:48:11,728 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:48:11,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-16 09:48:11,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4bf5e16/3a940bd7883a456d82a795694879088f/FLAG6c91738da [2024-11-16 09:48:11,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c4bf5e16/3a940bd7883a456d82a795694879088f [2024-11-16 09:48:11,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:48:11,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:48:11,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:48:11,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:48:11,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:48:11,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:48:11" (1/1) ... [2024-11-16 09:48:11,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d16ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:11, skipping insertion in model container [2024-11-16 09:48:11,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:48:11" (1/1) ... [2024-11-16 09:48:11,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:48:12,215 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.7.ufo.UNBOUNDED.pals+Problem12_label03.c[20454,20467] [2024-11-16 09:48:12,234 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.7.ufo.UNBOUNDED.pals+Problem12_label03.c[22791,22804] [2024-11-16 09:48:12,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:48:12,673 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:48:12,710 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.7.ufo.UNBOUNDED.pals+Problem12_label03.c[20454,20467] [2024-11-16 09:48:12,713 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.7.ufo.UNBOUNDED.pals+Problem12_label03.c[22791,22804] [2024-11-16 09:48:13,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:48:13,096 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:48:13,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13 WrapperNode [2024-11-16 09:48:13,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:48:13,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:48:13,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:48:13,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:48:13,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,426 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-11-16 09:48:13,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:48:13,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:48:13,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:48:13,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:48:13,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,655 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 09:48:13,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,761 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:48:13,847 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:48:13,848 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:48:13,848 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:48:13,848 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (1/1) ... [2024-11-16 09:48:13,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:48:13,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:48:13,874 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 09:48:13,884 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 09:48:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:48:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:48:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:48:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:48:14,042 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:48:14,044 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:48:17,319 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5256: havoc calculate_output3_#t~ret47#1; [2024-11-16 09:48:17,319 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2287: havoc calculate_output_#t~ret45#1; [2024-11-16 09:48:17,320 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3766: havoc calculate_output2_#t~ret46#1; [2024-11-16 09:48:17,420 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-16 09:48:17,420 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:48:17,448 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:48:17,449 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:48:17,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:48:17 BoogieIcfgContainer [2024-11-16 09:48:17,449 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:48:17,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:48:17,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:48:17,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:48:17,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:48:11" (1/3) ... [2024-11-16 09:48:17,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68475b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:48:17, skipping insertion in model container [2024-11-16 09:48:17,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:48:13" (2/3) ... [2024-11-16 09:48:17,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68475b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:48:17, skipping insertion in model container [2024-11-16 09:48:17,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:48:17" (3/3) ... [2024-11-16 09:48:17,464 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-16 09:48:17,486 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:48:17,487 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:48:17,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:48:17,620 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;@e4d145d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:48:17,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:48:17,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 939 states, 936 states have (on average 1.8963675213675213) internal successors, (1775), 938 states have internal predecessors, (1775), 0 states have call successors, (0), 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 09:48:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-16 09:48:17,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:17,633 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] [2024-11-16 09:48:17,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:17,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:17,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1849899677, now seen corresponding path program 1 times [2024-11-16 09:48:17,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:17,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660982336] [2024-11-16 09:48:17,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:17,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:17,881 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 09:48:17,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:17,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660982336] [2024-11-16 09:48:17,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660982336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:17,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:17,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:48:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264691037] [2024-11-16 09:48:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:17,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:17,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:17,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:17,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:17,904 INFO L87 Difference]: Start difference. First operand has 939 states, 936 states have (on average 1.8963675213675213) internal successors, (1775), 938 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 09:48:20,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:20,683 INFO L93 Difference]: Finished difference Result 2574 states and 4941 transitions. [2024-11-16 09:48:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:20,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-16 09:48:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:20,707 INFO L225 Difference]: With dead ends: 2574 [2024-11-16 09:48:20,708 INFO L226 Difference]: Without dead ends: 1623 [2024-11-16 09:48:20,714 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 09:48:20,716 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 1077 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:20,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 361 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 09:48:20,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-11-16 09:48:20,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1623. [2024-11-16 09:48:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1621 states have (on average 1.838371375694016) internal successors, (2980), 1622 states have internal predecessors, (2980), 0 states have call successors, (0), 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 09:48:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2980 transitions. [2024-11-16 09:48:20,806 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2980 transitions. Word has length 22 [2024-11-16 09:48:20,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:20,806 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2980 transitions. [2024-11-16 09:48:20,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 09:48:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2980 transitions. [2024-11-16 09:48:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 09:48:20,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:20,808 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] [2024-11-16 09:48:20,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:48:20,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:20,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash 905114243, now seen corresponding path program 1 times [2024-11-16 09:48:20,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:20,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657768162] [2024-11-16 09:48:20,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:20,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:20,943 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 09:48:20,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:20,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657768162] [2024-11-16 09:48:20,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657768162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:20,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:20,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:48:20,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001658035] [2024-11-16 09:48:20,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:20,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:48:20,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:20,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:48:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:48:20,947 INFO L87 Difference]: Start difference. First operand 1623 states and 2980 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 09:48:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:21,038 INFO L93 Difference]: Finished difference Result 1686 states and 3077 transitions. [2024-11-16 09:48:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:48:21,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-16 09:48:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:21,043 INFO L225 Difference]: With dead ends: 1686 [2024-11-16 09:48:21,044 INFO L226 Difference]: Without dead ends: 1623 [2024-11-16 09:48:21,044 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 09:48:21,045 INFO L432 NwaCegarLoop]: 1638 mSDtfsCounter, 0 mSDsluCounter, 4859 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:21,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6497 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:21,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2024-11-16 09:48:21,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1623. [2024-11-16 09:48:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1621 states have (on average 1.8075262183837137) internal successors, (2930), 1622 states have internal predecessors, (2930), 0 states have call successors, (0), 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 09:48:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2930 transitions. [2024-11-16 09:48:21,070 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2930 transitions. Word has length 30 [2024-11-16 09:48:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:21,071 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2930 transitions. [2024-11-16 09:48:21,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 09:48:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2930 transitions. [2024-11-16 09:48:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 09:48:21,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:21,073 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, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:21,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:48:21,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:21,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:21,074 INFO L85 PathProgramCache]: Analyzing trace with hash -443722676, now seen corresponding path program 1 times [2024-11-16 09:48:21,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:21,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890589218] [2024-11-16 09:48:21,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:21,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:21,393 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 09:48:21,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:21,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890589218] [2024-11-16 09:48:21,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890589218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:21,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:21,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:21,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542245258] [2024-11-16 09:48:21,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:21,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:21,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:21,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:21,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:21,395 INFO L87 Difference]: Start difference. First operand 1623 states and 2930 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 09:48:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:21,717 INFO L93 Difference]: Finished difference Result 2449 states and 4232 transitions. [2024-11-16 09:48:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:48:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-16 09:48:21,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:21,725 INFO L225 Difference]: With dead ends: 2449 [2024-11-16 09:48:21,726 INFO L226 Difference]: Without dead ends: 2390 [2024-11-16 09:48:21,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-16 09:48:21,727 INFO L432 NwaCegarLoop]: 1584 mSDtfsCounter, 11674 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11674 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:21,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11674 Valid, 4276 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:21,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2024-11-16 09:48:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1679. [2024-11-16 09:48:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1677 states have (on average 1.8002385211687537) internal successors, (3019), 1678 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 09:48:21,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 3019 transitions. [2024-11-16 09:48:21,755 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 3019 transitions. Word has length 79 [2024-11-16 09:48:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:21,756 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 3019 transitions. [2024-11-16 09:48:21,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 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 09:48:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 3019 transitions. [2024-11-16 09:48:21,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:48:21,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:21,758 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:21,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:48:21,758 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:21,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1073631214, now seen corresponding path program 1 times [2024-11-16 09:48:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287202953] [2024-11-16 09:48:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:22,125 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 09:48:22,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:22,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287202953] [2024-11-16 09:48:22,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287202953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:22,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:22,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:22,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001693820] [2024-11-16 09:48:22,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:22,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:22,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:22,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:22,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:22,129 INFO L87 Difference]: Start difference. First operand 1679 states and 3019 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 09:48:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:22,384 INFO L93 Difference]: Finished difference Result 1797 states and 3203 transitions. [2024-11-16 09:48:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:22,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-16 09:48:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:22,390 INFO L225 Difference]: With dead ends: 1797 [2024-11-16 09:48:22,390 INFO L226 Difference]: Without dead ends: 1682 [2024-11-16 09:48:22,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-16 09:48:22,391 INFO L432 NwaCegarLoop]: 1581 mSDtfsCounter, 10602 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10602 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:22,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10602 Valid, 2121 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-16 09:48:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1679. [2024-11-16 09:48:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1677 states have (on average 1.7996422182468694) internal successors, (3018), 1678 states have internal predecessors, (3018), 0 states have call successors, (0), 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 09:48:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 3018 transitions. [2024-11-16 09:48:22,413 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 3018 transitions. Word has length 81 [2024-11-16 09:48:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:22,413 INFO L471 AbstractCegarLoop]: Abstraction has 1679 states and 3018 transitions. [2024-11-16 09:48:22,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 09:48:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 3018 transitions. [2024-11-16 09:48:22,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 09:48:22,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:22,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:22,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:48:22,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:22,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash 646648471, now seen corresponding path program 1 times [2024-11-16 09:48:22,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:22,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474732697] [2024-11-16 09:48:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:22,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:22,560 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 09:48:22,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:22,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474732697] [2024-11-16 09:48:22,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474732697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:22,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:22,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108628535] [2024-11-16 09:48:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:22,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:22,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:22,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:22,562 INFO L87 Difference]: Start difference. First operand 1679 states and 3018 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 09:48:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:22,612 INFO L93 Difference]: Finished difference Result 1897 states and 3360 transitions. [2024-11-16 09:48:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:22,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 82 [2024-11-16 09:48:22,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:22,620 INFO L225 Difference]: With dead ends: 1897 [2024-11-16 09:48:22,620 INFO L226 Difference]: Without dead ends: 1782 [2024-11-16 09:48:22,622 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 09:48:22,622 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 1504 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1672 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 09:48:22,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1672 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2024-11-16 09:48:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1777. [2024-11-16 09:48:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1775 states have (on average 1.7859154929577465) internal successors, (3170), 1776 states have internal predecessors, (3170), 0 states have call successors, (0), 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 09:48:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 3170 transitions. [2024-11-16 09:48:22,663 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 3170 transitions. Word has length 82 [2024-11-16 09:48:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:22,664 INFO L471 AbstractCegarLoop]: Abstraction has 1777 states and 3170 transitions. [2024-11-16 09:48:22,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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 09:48:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 3170 transitions. [2024-11-16 09:48:22,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:22,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:22,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:22,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:48:22,666 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:22,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:22,667 INFO L85 PathProgramCache]: Analyzing trace with hash -215279632, now seen corresponding path program 1 times [2024-11-16 09:48:22,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:22,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084748182] [2024-11-16 09:48:22,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:22,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:22,749 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 09:48:22,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:22,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084748182] [2024-11-16 09:48:22,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084748182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:22,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:22,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:22,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233686567] [2024-11-16 09:48:22,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:22,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:22,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:22,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:22,752 INFO L87 Difference]: Start difference. First operand 1777 states and 3170 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:22,793 INFO L93 Difference]: Finished difference Result 2187 states and 3808 transitions. [2024-11-16 09:48:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:22,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:22,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:22,840 INFO L225 Difference]: With dead ends: 2187 [2024-11-16 09:48:22,841 INFO L226 Difference]: Without dead ends: 1974 [2024-11-16 09:48:22,842 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 09:48:22,844 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 1521 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1757 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 09:48:22,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1757 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:22,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-16 09:48:22,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1971. [2024-11-16 09:48:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1969 states have (on average 1.7618080243778569) internal successors, (3469), 1970 states have internal predecessors, (3469), 0 states have call successors, (0), 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 09:48:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 3469 transitions. [2024-11-16 09:48:22,878 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 3469 transitions. Word has length 83 [2024-11-16 09:48:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:22,878 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 3469 transitions. [2024-11-16 09:48:22,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 3469 transitions. [2024-11-16 09:48:22,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:22,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:22,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:22,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:48:22,880 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:22,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:22,881 INFO L85 PathProgramCache]: Analyzing trace with hash -987820432, now seen corresponding path program 1 times [2024-11-16 09:48:22,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:22,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482368320] [2024-11-16 09:48:22,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:22,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:22,946 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 09:48:22,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:22,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482368320] [2024-11-16 09:48:22,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482368320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:22,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:22,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:22,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204780567] [2024-11-16 09:48:22,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:22,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:22,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:22,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:22,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:22,948 INFO L87 Difference]: Start difference. First operand 1971 states and 3469 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:22,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:22,983 INFO L93 Difference]: Finished difference Result 2753 states and 4677 transitions. [2024-11-16 09:48:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:22,994 INFO L225 Difference]: With dead ends: 2753 [2024-11-16 09:48:22,994 INFO L226 Difference]: Without dead ends: 2346 [2024-11-16 09:48:22,995 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 09:48:22,995 INFO L432 NwaCegarLoop]: 1647 mSDtfsCounter, 1517 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1753 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 09:48:22,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:22,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2024-11-16 09:48:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2343. [2024-11-16 09:48:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2343 states, 2341 states have (on average 1.7236223835967535) internal successors, (4035), 2342 states have internal predecessors, (4035), 0 states have call successors, (0), 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 09:48:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2343 states to 2343 states and 4035 transitions. [2024-11-16 09:48:23,039 INFO L78 Accepts]: Start accepts. Automaton has 2343 states and 4035 transitions. Word has length 83 [2024-11-16 09:48:23,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:23,039 INFO L471 AbstractCegarLoop]: Abstraction has 2343 states and 4035 transitions. [2024-11-16 09:48:23,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2343 states and 4035 transitions. [2024-11-16 09:48:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:23,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:23,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:23,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:48:23,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:23,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:23,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1989230160, now seen corresponding path program 1 times [2024-11-16 09:48:23,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:23,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120532568] [2024-11-16 09:48:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:23,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:23,106 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 09:48:23,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:23,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120532568] [2024-11-16 09:48:23,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120532568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:23,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:23,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:23,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091153998] [2024-11-16 09:48:23,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:23,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:23,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:23,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:23,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:23,109 INFO L87 Difference]: Start difference. First operand 2343 states and 4035 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:23,159 INFO L93 Difference]: Finished difference Result 3837 states and 6319 transitions. [2024-11-16 09:48:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:23,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:23,171 INFO L225 Difference]: With dead ends: 3837 [2024-11-16 09:48:23,171 INFO L226 Difference]: Without dead ends: 3058 [2024-11-16 09:48:23,173 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 09:48:23,174 INFO L432 NwaCegarLoop]: 1645 mSDtfsCounter, 1515 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1755 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 09:48:23,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1755 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:23,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2024-11-16 09:48:23,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 3055. [2024-11-16 09:48:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3055 states, 3053 states have (on average 1.6714706845725515) internal successors, (5103), 3054 states have internal predecessors, (5103), 0 states have call successors, (0), 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 09:48:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 5103 transitions. [2024-11-16 09:48:23,248 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 5103 transitions. Word has length 83 [2024-11-16 09:48:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:23,248 INFO L471 AbstractCegarLoop]: Abstraction has 3055 states and 5103 transitions. [2024-11-16 09:48:23,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 5103 transitions. [2024-11-16 09:48:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:23,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:23,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:23,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:48:23,250 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:23,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:23,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2003680016, now seen corresponding path program 1 times [2024-11-16 09:48:23,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:23,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142116059] [2024-11-16 09:48:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:23,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:23,311 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 09:48:23,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:23,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142116059] [2024-11-16 09:48:23,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142116059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:23,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:23,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:23,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630521343] [2024-11-16 09:48:23,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:23,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:23,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:23,313 INFO L87 Difference]: Start difference. First operand 3055 states and 5103 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:23,367 INFO L93 Difference]: Finished difference Result 5909 states and 9411 transitions. [2024-11-16 09:48:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:23,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:23,379 INFO L225 Difference]: With dead ends: 5909 [2024-11-16 09:48:23,379 INFO L226 Difference]: Without dead ends: 4418 [2024-11-16 09:48:23,382 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 09:48:23,383 INFO L432 NwaCegarLoop]: 1643 mSDtfsCounter, 1513 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1757 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 09:48:23,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1757 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2024-11-16 09:48:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 4415. [2024-11-16 09:48:23,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4415 states, 4413 states have (on average 1.6113754815318377) internal successors, (7111), 4414 states have internal predecessors, (7111), 0 states have call successors, (0), 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 09:48:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4415 states to 4415 states and 7111 transitions. [2024-11-16 09:48:23,462 INFO L78 Accepts]: Start accepts. Automaton has 4415 states and 7111 transitions. Word has length 83 [2024-11-16 09:48:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:23,462 INFO L471 AbstractCegarLoop]: Abstraction has 4415 states and 7111 transitions. [2024-11-16 09:48:23,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4415 states and 7111 transitions. [2024-11-16 09:48:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:23,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:23,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:23,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:48:23,464 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:23,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:23,464 INFO L85 PathProgramCache]: Analyzing trace with hash 87922736, now seen corresponding path program 1 times [2024-11-16 09:48:23,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:23,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455217474] [2024-11-16 09:48:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:23,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:23,515 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 09:48:23,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:23,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455217474] [2024-11-16 09:48:23,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455217474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:23,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:23,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:23,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672515715] [2024-11-16 09:48:23,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:23,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:23,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:23,517 INFO L87 Difference]: Start difference. First operand 4415 states and 7111 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:23,598 INFO L93 Difference]: Finished difference Result 9861 states and 15211 transitions. [2024-11-16 09:48:23,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:23,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:23,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:23,615 INFO L225 Difference]: With dead ends: 9861 [2024-11-16 09:48:23,615 INFO L226 Difference]: Without dead ends: 7010 [2024-11-16 09:48:23,619 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 09:48:23,620 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 1511 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1759 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 09:48:23,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1759 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2024-11-16 09:48:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 7007. [2024-11-16 09:48:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7005 states have (on average 1.551891506067095) internal successors, (10871), 7006 states have internal predecessors, (10871), 0 states have call successors, (0), 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 09:48:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 10871 transitions. [2024-11-16 09:48:23,826 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 10871 transitions. Word has length 83 [2024-11-16 09:48:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:23,826 INFO L471 AbstractCegarLoop]: Abstraction has 7007 states and 10871 transitions. [2024-11-16 09:48:23,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 10871 transitions. [2024-11-16 09:48:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:23,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:23,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:23,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:48:23,827 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:23,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:23,828 INFO L85 PathProgramCache]: Analyzing trace with hash -436354319, now seen corresponding path program 1 times [2024-11-16 09:48:23,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:23,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409806798] [2024-11-16 09:48:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:23,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:24,085 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 09:48:24,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:24,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409806798] [2024-11-16 09:48:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409806798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:24,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:24,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:48:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506528145] [2024-11-16 09:48:24,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:24,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:48:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:48:24,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:48:24,088 INFO L87 Difference]: Start difference. First operand 7007 states and 10871 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:24,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:24,222 INFO L93 Difference]: Finished difference Result 7202 states and 11129 transitions. [2024-11-16 09:48:24,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:48:24,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:24,237 INFO L225 Difference]: With dead ends: 7202 [2024-11-16 09:48:24,237 INFO L226 Difference]: Without dead ends: 7199 [2024-11-16 09:48:24,239 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 09:48:24,240 INFO L432 NwaCegarLoop]: 1584 mSDtfsCounter, 0 mSDsluCounter, 9491 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11075 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 09:48:24,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11075 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:24,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7199 states. [2024-11-16 09:48:24,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7199 to 7199. [2024-11-16 09:48:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7199 states, 7197 states have (on average 1.5327219674864527) internal successors, (11031), 7198 states have internal predecessors, (11031), 0 states have call successors, (0), 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 09:48:24,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7199 states to 7199 states and 11031 transitions. [2024-11-16 09:48:24,412 INFO L78 Accepts]: Start accepts. Automaton has 7199 states and 11031 transitions. Word has length 83 [2024-11-16 09:48:24,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:24,412 INFO L471 AbstractCegarLoop]: Abstraction has 7199 states and 11031 transitions. [2024-11-16 09:48:24,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:24,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7199 states and 11031 transitions. [2024-11-16 09:48:24,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:48:24,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:24,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:24,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:48:24,414 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:24,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:24,415 INFO L85 PathProgramCache]: Analyzing trace with hash -705746128, now seen corresponding path program 1 times [2024-11-16 09:48:24,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:24,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397918600] [2024-11-16 09:48:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:24,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:24,480 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 09:48:24,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:24,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397918600] [2024-11-16 09:48:24,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397918600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:24,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:24,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:24,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225782531] [2024-11-16 09:48:24,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:24,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:24,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:24,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:24,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:24,482 INFO L87 Difference]: Start difference. First operand 7199 states and 11031 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:24,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:24,620 INFO L93 Difference]: Finished difference Result 17957 states and 26523 transitions. [2024-11-16 09:48:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:24,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-16 09:48:24,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:24,637 INFO L225 Difference]: With dead ends: 17957 [2024-11-16 09:48:24,638 INFO L226 Difference]: Without dead ends: 12322 [2024-11-16 09:48:24,646 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 09:48:24,647 INFO L432 NwaCegarLoop]: 1657 mSDtfsCounter, 1519 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1759 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 09:48:24,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1759 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:24,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12322 states. [2024-11-16 09:48:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12322 to 12319. [2024-11-16 09:48:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12319 states, 12317 states have (on average 1.4775513517902086) internal successors, (18199), 12318 states have internal predecessors, (18199), 0 states have call successors, (0), 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 09:48:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12319 states to 12319 states and 18199 transitions. [2024-11-16 09:48:24,871 INFO L78 Accepts]: Start accepts. Automaton has 12319 states and 18199 transitions. Word has length 83 [2024-11-16 09:48:24,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:24,871 INFO L471 AbstractCegarLoop]: Abstraction has 12319 states and 18199 transitions. [2024-11-16 09:48:24,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 09:48:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 12319 states and 18199 transitions. [2024-11-16 09:48:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:48:24,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:24,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:24,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:48:24,874 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:24,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1310640528, now seen corresponding path program 1 times [2024-11-16 09:48:24,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:24,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373487569] [2024-11-16 09:48:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:24,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:24,999 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 09:48:25,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:25,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373487569] [2024-11-16 09:48:25,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373487569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:25,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:25,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660963873] [2024-11-16 09:48:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:25,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:25,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:25,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:25,002 INFO L87 Difference]: Start difference. First operand 12319 states and 18199 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 09:48:25,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:25,145 INFO L93 Difference]: Finished difference Result 23593 states and 34464 transitions. [2024-11-16 09:48:25,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:25,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-16 09:48:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:25,168 INFO L225 Difference]: With dead ends: 23593 [2024-11-16 09:48:25,168 INFO L226 Difference]: Without dead ends: 17573 [2024-11-16 09:48:25,177 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 09:48:25,178 INFO L432 NwaCegarLoop]: 1664 mSDtfsCounter, 1520 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1758 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 09:48:25,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1758 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:48:25,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17573 states. [2024-11-16 09:48:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17573 to 17570. [2024-11-16 09:48:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17570 states, 17568 states have (on average 1.4550318761384335) internal successors, (25562), 17569 states have internal predecessors, (25562), 0 states have call successors, (0), 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 09:48:25,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17570 states to 17570 states and 25562 transitions. [2024-11-16 09:48:25,460 INFO L78 Accepts]: Start accepts. Automaton has 17570 states and 25562 transitions. Word has length 85 [2024-11-16 09:48:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:25,460 INFO L471 AbstractCegarLoop]: Abstraction has 17570 states and 25562 transitions. [2024-11-16 09:48:25,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 09:48:25,461 INFO L276 IsEmpty]: Start isEmpty. Operand 17570 states and 25562 transitions. [2024-11-16 09:48:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:48:25,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:25,462 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:48:25,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:48:25,462 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:25,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1154686221, now seen corresponding path program 1 times [2024-11-16 09:48:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215937013] [2024-11-16 09:48:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:48:25,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:25,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215937013] [2024-11-16 09:48:25,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215937013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:25,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:25,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:48:25,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936069604] [2024-11-16 09:48:25,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:25,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:48:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:25,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:48:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:48:25,588 INFO L87 Difference]: Start difference. First operand 17570 states and 25562 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 09:48:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:30,526 INFO L93 Difference]: Finished difference Result 21333 states and 32458 transitions. [2024-11-16 09:48:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:48:30,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-16 09:48:30,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:30,554 INFO L225 Difference]: With dead ends: 21333 [2024-11-16 09:48:30,554 INFO L226 Difference]: Without dead ends: 19826 [2024-11-16 09:48:30,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:48:30,561 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 2475 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1148 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:30,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2475 Valid, 867 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1148 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-16 09:48:30,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19826 states. [2024-11-16 09:48:31,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19826 to 19826. [2024-11-16 09:48:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 19824 states have (on average 1.4474374495560935) internal successors, (28694), 19825 states have internal predecessors, (28694), 0 states have call successors, (0), 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 09:48:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 28694 transitions. [2024-11-16 09:48:31,056 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 28694 transitions. Word has length 92 [2024-11-16 09:48:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:31,056 INFO L471 AbstractCegarLoop]: Abstraction has 19826 states and 28694 transitions. [2024-11-16 09:48:31,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 09:48:31,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 28694 transitions. [2024-11-16 09:48:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:48:31,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:31,057 INFO L215 NwaCegarLoop]: trace histogram [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 09:48:31,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:48:31,057 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:31,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:31,058 INFO L85 PathProgramCache]: Analyzing trace with hash -536312456, now seen corresponding path program 1 times [2024-11-16 09:48:31,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:31,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140836449] [2024-11-16 09:48:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 09:48:31,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:31,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140836449] [2024-11-16 09:48:31,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140836449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:31,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:31,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:48:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377293131] [2024-11-16 09:48:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:31,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:48:31,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:48:31,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:48:31,123 INFO L87 Difference]: Start difference. First operand 19826 states and 28694 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:33,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:33,860 INFO L93 Difference]: Finished difference Result 26597 states and 39756 transitions. [2024-11-16 09:48:33,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:48:33,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:48:33,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:33,894 INFO L225 Difference]: With dead ends: 26597 [2024-11-16 09:48:33,895 INFO L226 Difference]: Without dead ends: 22834 [2024-11-16 09:48:33,905 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 09:48:33,905 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 874 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:33,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 627 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 09:48:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22834 states. [2024-11-16 09:48:34,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22834 to 22834. [2024-11-16 09:48:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22834 states, 22832 states have (on average 1.4200245269796776) internal successors, (32422), 22833 states have internal predecessors, (32422), 0 states have call successors, (0), 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 09:48:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22834 states to 22834 states and 32422 transitions. [2024-11-16 09:48:34,390 INFO L78 Accepts]: Start accepts. Automaton has 22834 states and 32422 transitions. Word has length 94 [2024-11-16 09:48:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:34,390 INFO L471 AbstractCegarLoop]: Abstraction has 22834 states and 32422 transitions. [2024-11-16 09:48:34,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:48:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 22834 states and 32422 transitions. [2024-11-16 09:48:34,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:34,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:34,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:34,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:48:34,396 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:34,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1279047486, now seen corresponding path program 1 times [2024-11-16 09:48:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442835593] [2024-11-16 09:48:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:34,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:48:34,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:34,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442835593] [2024-11-16 09:48:34,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442835593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:34,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:34,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:34,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682058706] [2024-11-16 09:48:34,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:34,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:34,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:34,693 INFO L87 Difference]: Start difference. First operand 22834 states and 32422 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 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 09:48:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:36,449 INFO L93 Difference]: Finished difference Result 138186 states and 196022 transitions. [2024-11-16 09:48:36,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 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 108 [2024-11-16 09:48:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:36,622 INFO L225 Difference]: With dead ends: 138186 [2024-11-16 09:48:36,622 INFO L226 Difference]: Without dead ends: 122183 [2024-11-16 09:48:36,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:48:36,645 INFO L432 NwaCegarLoop]: 1686 mSDtfsCounter, 9941 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9941 SdHoareTripleChecker+Valid, 4439 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:36,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9941 Valid, 4439 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:36,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122183 states. [2024-11-16 09:48:38,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122183 to 38834. [2024-11-16 09:48:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38834 states, 38832 states have (on average 1.4150700453234446) internal successors, (54950), 38833 states have internal predecessors, (54950), 0 states have call successors, (0), 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 09:48:38,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38834 states to 38834 states and 54950 transitions. [2024-11-16 09:48:38,360 INFO L78 Accepts]: Start accepts. Automaton has 38834 states and 54950 transitions. Word has length 108 [2024-11-16 09:48:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:38,365 INFO L471 AbstractCegarLoop]: Abstraction has 38834 states and 54950 transitions. [2024-11-16 09:48:38,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 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 09:48:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 38834 states and 54950 transitions. [2024-11-16 09:48:38,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:38,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:38,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:38,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:48:38,378 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:38,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:38,378 INFO L85 PathProgramCache]: Analyzing trace with hash 506506686, now seen corresponding path program 1 times [2024-11-16 09:48:38,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:38,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559778142] [2024-11-16 09:48:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:38,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:48:38,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:38,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559778142] [2024-11-16 09:48:38,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559778142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:38,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:38,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:38,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506887765] [2024-11-16 09:48:38,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:38,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:38,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:38,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:38,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:38,693 INFO L87 Difference]: Start difference. First operand 38834 states and 54950 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 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 09:48:41,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:41,062 INFO L93 Difference]: Finished difference Result 154186 states and 218550 transitions. [2024-11-16 09:48:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:41,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 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 108 [2024-11-16 09:48:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:41,265 INFO L225 Difference]: With dead ends: 154186 [2024-11-16 09:48:41,266 INFO L226 Difference]: Without dead ends: 138183 [2024-11-16 09:48:41,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:48:41,318 INFO L432 NwaCegarLoop]: 1682 mSDtfsCounter, 9998 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9998 SdHoareTripleChecker+Valid, 4347 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:41,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9998 Valid, 4347 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:48:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138183 states. [2024-11-16 09:48:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138183 to 62898. [2024-11-16 09:48:43,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62898 states, 62896 states have (on average 1.4088972271686593) internal successors, (88614), 62897 states have internal predecessors, (88614), 0 states have call successors, (0), 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 09:48:43,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62898 states to 62898 states and 88614 transitions. [2024-11-16 09:48:43,253 INFO L78 Accepts]: Start accepts. Automaton has 62898 states and 88614 transitions. Word has length 108 [2024-11-16 09:48:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:43,253 INFO L471 AbstractCegarLoop]: Abstraction has 62898 states and 88614 transitions. [2024-11-16 09:48:43,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 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 09:48:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 62898 states and 88614 transitions. [2024-11-16 09:48:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:43,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:43,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:43,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:48:43,259 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:43,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:43,260 INFO L85 PathProgramCache]: Analyzing trace with hash -494903042, now seen corresponding path program 1 times [2024-11-16 09:48:43,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:43,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486021617] [2024-11-16 09:48:43,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:43,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:48:43,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:43,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486021617] [2024-11-16 09:48:43,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486021617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:43,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:43,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:43,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962354024] [2024-11-16 09:48:43,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:43,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:43,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:43,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:43,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:43,732 INFO L87 Difference]: Start difference. First operand 62898 states and 88614 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 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 09:48:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:46,313 INFO L93 Difference]: Finished difference Result 170186 states and 241078 transitions. [2024-11-16 09:48:46,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 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 108 [2024-11-16 09:48:46,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:46,647 INFO L225 Difference]: With dead ends: 170186 [2024-11-16 09:48:46,647 INFO L226 Difference]: Without dead ends: 154183 [2024-11-16 09:48:46,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:48:46,704 INFO L432 NwaCegarLoop]: 1678 mSDtfsCounter, 10058 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10058 SdHoareTripleChecker+Valid, 4260 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:46,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10058 Valid, 4260 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:46,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154183 states. [2024-11-16 09:48:48,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154183 to 78898. [2024-11-16 09:48:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78898 states, 78896 states have (on average 1.408715270736159) internal successors, (111142), 78897 states have internal predecessors, (111142), 0 states have call successors, (0), 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 09:48:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78898 states to 78898 states and 111142 transitions. [2024-11-16 09:48:49,023 INFO L78 Accepts]: Start accepts. Automaton has 78898 states and 111142 transitions. Word has length 108 [2024-11-16 09:48:49,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:49,024 INFO L471 AbstractCegarLoop]: Abstraction has 78898 states and 111142 transitions. [2024-11-16 09:48:49,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 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 09:48:49,024 INFO L276 IsEmpty]: Start isEmpty. Operand 78898 states and 111142 transitions. [2024-11-16 09:48:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:49,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:49,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:49,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:48:49,030 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:49,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:49,030 INFO L85 PathProgramCache]: Analyzing trace with hash -509352898, now seen corresponding path program 1 times [2024-11-16 09:48:49,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:49,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076162649] [2024-11-16 09:48:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:49,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:48:49,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:49,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076162649] [2024-11-16 09:48:49,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076162649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:49,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:49,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216636437] [2024-11-16 09:48:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:49,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:49,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:49,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:49,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:49,170 INFO L87 Difference]: Start difference. First operand 78898 states and 111142 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 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 09:48:52,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:48:52,585 INFO L93 Difference]: Finished difference Result 186186 states and 263606 transitions. [2024-11-16 09:48:52,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:48:52,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 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 108 [2024-11-16 09:48:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:48:52,824 INFO L225 Difference]: With dead ends: 186186 [2024-11-16 09:48:52,824 INFO L226 Difference]: Without dead ends: 170183 [2024-11-16 09:48:52,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:48:52,872 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 10114 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10114 SdHoareTripleChecker+Valid, 4299 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:48:52,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10114 Valid, 4299 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:48:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170183 states. [2024-11-16 09:48:55,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170183 to 94898. [2024-11-16 09:48:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94898 states, 94896 states have (on average 1.4085946720620468) internal successors, (133670), 94897 states have internal predecessors, (133670), 0 states have call successors, (0), 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 09:48:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94898 states to 94898 states and 133670 transitions. [2024-11-16 09:48:55,896 INFO L78 Accepts]: Start accepts. Automaton has 94898 states and 133670 transitions. Word has length 108 [2024-11-16 09:48:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:48:55,897 INFO L471 AbstractCegarLoop]: Abstraction has 94898 states and 133670 transitions. [2024-11-16 09:48:55,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 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 09:48:55,897 INFO L276 IsEmpty]: Start isEmpty. Operand 94898 states and 133670 transitions. [2024-11-16 09:48:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:48:55,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:48:55,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:48:55,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:48:55,904 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:48:55,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:48:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1582249854, now seen corresponding path program 1 times [2024-11-16 09:48:55,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:48:55,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353329348] [2024-11-16 09:48:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:48:55,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:48:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:48:56,102 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 09:48:56,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:48:56,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353329348] [2024-11-16 09:48:56,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353329348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:48:56,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:48:56,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 09:48:56,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507604855] [2024-11-16 09:48:56,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:48:56,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 09:48:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:48:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 09:48:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 09:48:56,104 INFO L87 Difference]: Start difference. First operand 94898 states and 133670 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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 09:49:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:49:00,096 INFO L93 Difference]: Finished difference Result 202186 states and 286134 transitions. [2024-11-16 09:49:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 09:49:00,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 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 108 [2024-11-16 09:49:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:49:00,389 INFO L225 Difference]: With dead ends: 202186 [2024-11-16 09:49:00,390 INFO L226 Difference]: Without dead ends: 186183 [2024-11-16 09:49:00,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 09:49:00,448 INFO L432 NwaCegarLoop]: 1683 mSDtfsCounter, 9959 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9959 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:49:00,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9959 Valid, 4402 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:49:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186183 states.