./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.03.cil-2.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/systemc/token_ring.03.cil-2.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 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:07:21,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:07:22,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:07:22,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:07:22,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:07:22,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:07:22,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:07:22,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:07:22,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:07:22,056 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:07:22,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:07:22,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:07:22,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:07:22,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:07:22,058 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:07:22,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:07:22,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:07:22,059 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:07:22,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:07:22,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:07:22,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:07:22,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:07:22,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:07:22,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:07:22,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:07:22,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:07:22,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:07:22,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:07:22,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:07:22,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:07:22,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:07:22,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:07:22,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:07:22,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:07:22,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:07:22,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:07:22,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:07:22,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:07:22,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:07:22,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:07:22,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:07:22,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:07:22,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 [2024-11-16 08:07:22,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:07:22,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:07:22,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:07:22,388 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:07:22,389 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:07:22,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-11-16 08:07:23,871 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:07:24,086 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:07:24,087 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-11-16 08:07:24,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df06fe29d/388486d8802e454ba4ee017fd0b6f2b2/FLAG62b70c568 [2024-11-16 08:07:24,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df06fe29d/388486d8802e454ba4ee017fd0b6f2b2 [2024-11-16 08:07:24,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:07:24,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:07:24,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:07:24,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:07:24,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:07:24,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ec3706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24, skipping insertion in model container [2024-11-16 08:07:24,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:07:24,676 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/systemc/token_ring.03.cil-2.c[671,684] [2024-11-16 08:07:24,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:07:24,756 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:07:24,764 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/systemc/token_ring.03.cil-2.c[671,684] [2024-11-16 08:07:24,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:07:24,832 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:07:24,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24 WrapperNode [2024-11-16 08:07:24,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:07:24,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:07:24,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:07:24,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:07:24,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,881 INFO L138 Inliner]: procedures = 34, calls = 40, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 333 [2024-11-16 08:07:24,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:07:24,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:07:24,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:07:24,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:07:24,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,938 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 08:07:24,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,949 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:07:24,957 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:07:24,957 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:07:24,957 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:07:24,958 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (1/1) ... [2024-11-16 08:07:24,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:07:24,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:25,001 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 08:07:25,004 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 08:07:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:07:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 08:07:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 08:07:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 08:07:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 08:07:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 08:07:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 08:07:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 08:07:25,060 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 08:07:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 08:07:25,062 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 08:07:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:07:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 08:07:25,062 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 08:07:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:07:25,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:07:25,150 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:07:25,152 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:07:25,641 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-16 08:07:25,641 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:07:25,664 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:07:25,664 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:07:25,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:25 BoogieIcfgContainer [2024-11-16 08:07:25,665 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:07:25,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:07:25,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:07:25,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:07:25,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:07:24" (1/3) ... [2024-11-16 08:07:25,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d37d1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:25, skipping insertion in model container [2024-11-16 08:07:25,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:24" (2/3) ... [2024-11-16 08:07:25,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d37d1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:25, skipping insertion in model container [2024-11-16 08:07:25,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:25" (3/3) ... [2024-11-16 08:07:25,673 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.03.cil-2.c [2024-11-16 08:07:25,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:07:25,688 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:07:25,752 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:07:25,758 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;@7cabafb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:07:25,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:07:25,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 160 states have (on average 1.4875) internal successors, (238), 162 states have internal predecessors, (238), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-16 08:07:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:25,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:25,772 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 08:07:25,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:25,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:25,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1674223273, now seen corresponding path program 1 times [2024-11-16 08:07:25,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:25,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591670502] [2024-11-16 08:07:25,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:25,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:26,360 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 08:07:26,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:26,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591670502] [2024-11-16 08:07:26,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591670502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:26,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:26,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:26,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677376292] [2024-11-16 08:07:26,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:26,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:26,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:26,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:26,398 INFO L87 Difference]: Start difference. First operand has 185 states, 160 states have (on average 1.4875) internal successors, (238), 162 states have internal predecessors, (238), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:27,626 INFO L93 Difference]: Finished difference Result 607 states and 919 transitions. [2024-11-16 08:07:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:07:27,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:27,641 INFO L225 Difference]: With dead ends: 607 [2024-11-16 08:07:27,641 INFO L226 Difference]: Without dead ends: 423 [2024-11-16 08:07:27,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:27,648 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 554 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:27,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 668 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:07:27,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-16 08:07:27,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 337. [2024-11-16 08:07:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 294 states have (on average 1.435374149659864) internal successors, (422), 296 states have internal predecessors, (422), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2024-11-16 08:07:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 483 transitions. [2024-11-16 08:07:27,746 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 483 transitions. Word has length 83 [2024-11-16 08:07:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:27,748 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 483 transitions. [2024-11-16 08:07:27,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 483 transitions. [2024-11-16 08:07:27,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:27,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:27,753 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 08:07:27,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:07:27,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:27,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:27,756 INFO L85 PathProgramCache]: Analyzing trace with hash 618348327, now seen corresponding path program 1 times [2024-11-16 08:07:27,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:27,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185545916] [2024-11-16 08:07:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:27,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:27,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:28,021 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 08:07:28,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:28,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185545916] [2024-11-16 08:07:28,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185545916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:28,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:28,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:28,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019596550] [2024-11-16 08:07:28,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:28,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:28,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:28,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:28,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:28,027 INFO L87 Difference]: Start difference. First operand 337 states and 483 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:29,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:29,325 INFO L93 Difference]: Finished difference Result 956 states and 1394 transitions. [2024-11-16 08:07:29,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:07:29,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:29,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:29,332 INFO L225 Difference]: With dead ends: 956 [2024-11-16 08:07:29,332 INFO L226 Difference]: Without dead ends: 630 [2024-11-16 08:07:29,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:07:29,338 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 546 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:29,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1193 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:07:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-16 08:07:29,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 491. [2024-11-16 08:07:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 429 states have (on average 1.4265734265734267) internal successors, (612), 432 states have internal predecessors, (612), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2024-11-16 08:07:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 699 transitions. [2024-11-16 08:07:29,390 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 699 transitions. Word has length 83 [2024-11-16 08:07:29,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:29,391 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 699 transitions. [2024-11-16 08:07:29,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 699 transitions. [2024-11-16 08:07:29,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:29,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:29,394 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 08:07:29,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:07:29,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:29,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:29,395 INFO L85 PathProgramCache]: Analyzing trace with hash 372035240, now seen corresponding path program 1 times [2024-11-16 08:07:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196089920] [2024-11-16 08:07:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:29,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:29,599 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 08:07:29,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:29,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196089920] [2024-11-16 08:07:29,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196089920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:29,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:29,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:29,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100655947] [2024-11-16 08:07:29,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:29,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:29,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:29,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:29,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:29,604 INFO L87 Difference]: Start difference. First operand 491 states and 699 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:30,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:30,824 INFO L93 Difference]: Finished difference Result 1501 states and 2180 transitions. [2024-11-16 08:07:30,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:07:30,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:30,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:30,834 INFO L225 Difference]: With dead ends: 1501 [2024-11-16 08:07:30,835 INFO L226 Difference]: Without dead ends: 1021 [2024-11-16 08:07:30,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:07:30,838 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 544 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:30,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1191 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:07:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-16 08:07:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 800. [2024-11-16 08:07:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 700 states have (on average 1.4185714285714286) internal successors, (993), 705 states have internal predecessors, (993), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2024-11-16 08:07:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1136 transitions. [2024-11-16 08:07:30,892 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1136 transitions. Word has length 83 [2024-11-16 08:07:30,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:30,893 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1136 transitions. [2024-11-16 08:07:30,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1136 transitions. [2024-11-16 08:07:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:30,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:30,896 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 08:07:30,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:07:30,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:30,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1298478329, now seen corresponding path program 1 times [2024-11-16 08:07:30,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:30,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117500927] [2024-11-16 08:07:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:30,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:30,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:30,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:31,034 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 08:07:31,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:31,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117500927] [2024-11-16 08:07:31,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117500927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:31,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:31,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:31,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478180468] [2024-11-16 08:07:31,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:31,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:31,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:31,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:31,037 INFO L87 Difference]: Start difference. First operand 800 states and 1136 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:32,281 INFO L93 Difference]: Finished difference Result 2558 states and 3701 transitions. [2024-11-16 08:07:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:07:32,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:32,292 INFO L225 Difference]: With dead ends: 2558 [2024-11-16 08:07:32,292 INFO L226 Difference]: Without dead ends: 1769 [2024-11-16 08:07:32,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:07:32,297 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 540 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:32,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1191 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:07:32,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-11-16 08:07:32,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1419. [2024-11-16 08:07:32,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1243 states have (on average 1.411906677393403) internal successors, (1755), 1252 states have internal predecessors, (1755), 113 states have call successors, (113), 54 states have call predecessors, (113), 62 states have return successors, (148), 120 states have call predecessors, (148), 113 states have call successors, (148) [2024-11-16 08:07:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 2016 transitions. [2024-11-16 08:07:32,388 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 2016 transitions. Word has length 83 [2024-11-16 08:07:32,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:32,389 INFO L471 AbstractCegarLoop]: Abstraction has 1419 states and 2016 transitions. [2024-11-16 08:07:32,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 2016 transitions. [2024-11-16 08:07:32,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:32,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:32,396 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 08:07:32,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:07:32,396 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:32,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:32,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1906555192, now seen corresponding path program 1 times [2024-11-16 08:07:32,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:32,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875082551] [2024-11-16 08:07:32,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:32,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:32,549 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 08:07:32,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:32,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875082551] [2024-11-16 08:07:32,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875082551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:32,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:32,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:32,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966324578] [2024-11-16 08:07:32,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:32,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:32,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:32,551 INFO L87 Difference]: Start difference. First operand 1419 states and 2016 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:33,892 INFO L93 Difference]: Finished difference Result 5079 states and 7353 transitions. [2024-11-16 08:07:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:07:33,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:33,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:33,912 INFO L225 Difference]: With dead ends: 5079 [2024-11-16 08:07:33,912 INFO L226 Difference]: Without dead ends: 3671 [2024-11-16 08:07:33,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:07:33,921 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 671 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:33,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1181 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:07:33,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2024-11-16 08:07:34,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 2638. [2024-11-16 08:07:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2318 states have (on average 1.410267471958585) internal successors, (3269), 2335 states have internal predecessors, (3269), 201 states have call successors, (201), 102 states have call predecessors, (201), 118 states have return successors, (298), 216 states have call predecessors, (298), 201 states have call successors, (298) [2024-11-16 08:07:34,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 3768 transitions. [2024-11-16 08:07:34,160 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 3768 transitions. Word has length 83 [2024-11-16 08:07:34,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:34,161 INFO L471 AbstractCegarLoop]: Abstraction has 2638 states and 3768 transitions. [2024-11-16 08:07:34,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 3768 transitions. [2024-11-16 08:07:34,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:34,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:34,167 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 08:07:34,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:07:34,168 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:34,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:34,168 INFO L85 PathProgramCache]: Analyzing trace with hash -125055257, now seen corresponding path program 1 times [2024-11-16 08:07:34,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:34,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388924708] [2024-11-16 08:07:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:34,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:34,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:34,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:34,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:34,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:34,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:34,341 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 08:07:34,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:34,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388924708] [2024-11-16 08:07:34,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388924708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:34,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:34,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:34,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366357295] [2024-11-16 08:07:34,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:34,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:34,345 INFO L87 Difference]: Start difference. First operand 2638 states and 3768 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:35,079 INFO L93 Difference]: Finished difference Result 5871 states and 8549 transitions. [2024-11-16 08:07:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:07:35,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:35,097 INFO L225 Difference]: With dead ends: 5871 [2024-11-16 08:07:35,097 INFO L226 Difference]: Without dead ends: 3244 [2024-11-16 08:07:35,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:35,107 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 420 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:35,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 585 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:07:35,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2024-11-16 08:07:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2638. [2024-11-16 08:07:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2318 states have (on average 1.4029335634167386) internal successors, (3252), 2335 states have internal predecessors, (3252), 201 states have call successors, (201), 102 states have call predecessors, (201), 118 states have return successors, (298), 216 states have call predecessors, (298), 201 states have call successors, (298) [2024-11-16 08:07:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 3751 transitions. [2024-11-16 08:07:35,321 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 3751 transitions. Word has length 83 [2024-11-16 08:07:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:35,321 INFO L471 AbstractCegarLoop]: Abstraction has 2638 states and 3751 transitions. [2024-11-16 08:07:35,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 3751 transitions. [2024-11-16 08:07:35,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:35,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:35,326 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 08:07:35,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:07:35,326 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:35,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1179338472, now seen corresponding path program 1 times [2024-11-16 08:07:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:35,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461429114] [2024-11-16 08:07:35,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:35,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:35,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:35,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:35,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:35,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:35,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:35,489 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 08:07:35,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:35,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461429114] [2024-11-16 08:07:35,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461429114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:35,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236136182] [2024-11-16 08:07:35,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:35,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:35,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:35,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:35,492 INFO L87 Difference]: Start difference. First operand 2638 states and 3751 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:37,013 INFO L93 Difference]: Finished difference Result 9221 states and 13295 transitions. [2024-11-16 08:07:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:07:37,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:37,047 INFO L225 Difference]: With dead ends: 9221 [2024-11-16 08:07:37,047 INFO L226 Difference]: Without dead ends: 6594 [2024-11-16 08:07:37,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:07:37,056 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 581 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:37,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1181 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:07:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6594 states. [2024-11-16 08:07:37,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6594 to 5081. [2024-11-16 08:07:37,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 4481 states have (on average 1.4021423789332739) internal successors, (6283), 4514 states have internal predecessors, (6283), 369 states have call successors, (369), 198 states have call predecessors, (369), 230 states have return successors, (644), 400 states have call predecessors, (644), 369 states have call successors, (644) [2024-11-16 08:07:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 7296 transitions. [2024-11-16 08:07:37,419 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 7296 transitions. Word has length 83 [2024-11-16 08:07:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:37,422 INFO L471 AbstractCegarLoop]: Abstraction has 5081 states and 7296 transitions. [2024-11-16 08:07:37,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 7296 transitions. [2024-11-16 08:07:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:37,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:37,431 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 08:07:37,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:07:37,433 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:37,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash -995341625, now seen corresponding path program 1 times [2024-11-16 08:07:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:37,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600255562] [2024-11-16 08:07:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:37,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:37,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:37,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:37,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:37,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:37,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:37,560 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 08:07:37,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:37,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600255562] [2024-11-16 08:07:37,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600255562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:37,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:37,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:07:37,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638331141] [2024-11-16 08:07:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:37,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:07:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:37,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:07:37,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:07:37,563 INFO L87 Difference]: Start difference. First operand 5081 states and 7296 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:38,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:38,423 INFO L93 Difference]: Finished difference Result 11199 states and 16372 transitions. [2024-11-16 08:07:38,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:07:38,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:38,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:38,462 INFO L225 Difference]: With dead ends: 11199 [2024-11-16 08:07:38,462 INFO L226 Difference]: Without dead ends: 6129 [2024-11-16 08:07:38,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:07:38,479 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 416 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:38,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 585 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:07:38,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2024-11-16 08:07:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 5081. [2024-11-16 08:07:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 4481 states have (on average 1.394777951350145) internal successors, (6250), 4514 states have internal predecessors, (6250), 369 states have call successors, (369), 198 states have call predecessors, (369), 230 states have return successors, (644), 400 states have call predecessors, (644), 369 states have call successors, (644) [2024-11-16 08:07:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 7263 transitions. [2024-11-16 08:07:38,923 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 7263 transitions. Word has length 83 [2024-11-16 08:07:38,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:38,923 INFO L471 AbstractCegarLoop]: Abstraction has 5081 states and 7263 transitions. [2024-11-16 08:07:38,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 7263 transitions. [2024-11-16 08:07:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 08:07:38,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:38,930 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 08:07:38,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:07:38,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:38,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:38,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1204039928, now seen corresponding path program 1 times [2024-11-16 08:07:38,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401411589] [2024-11-16 08:07:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:38,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:38,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:39,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:39,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:39,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:39,038 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 08:07:39,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401411589] [2024-11-16 08:07:39,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401411589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:39,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:07:39,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:07:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800284526] [2024-11-16 08:07:39,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:39,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:07:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:07:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:07:39,041 INFO L87 Difference]: Start difference. First operand 5081 states and 7263 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:40,461 INFO L93 Difference]: Finished difference Result 16977 states and 24423 transitions. [2024-11-16 08:07:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 08:07:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 83 [2024-11-16 08:07:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:40,534 INFO L225 Difference]: With dead ends: 16977 [2024-11-16 08:07:40,535 INFO L226 Difference]: Without dead ends: 11908 [2024-11-16 08:07:40,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:07:40,555 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 722 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:40,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 874 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:07:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11908 states. [2024-11-16 08:07:41,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11908 to 9915. [2024-11-16 08:07:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9915 states, 8720 states have (on average 1.3825688073394495) internal successors, (12056), 8818 states have internal predecessors, (12056), 734 states have call successors, (734), 396 states have call predecessors, (734), 460 states have return successors, (1253), 732 states have call predecessors, (1253), 734 states have call successors, (1253) [2024-11-16 08:07:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9915 states to 9915 states and 14043 transitions. [2024-11-16 08:07:41,322 INFO L78 Accepts]: Start accepts. Automaton has 9915 states and 14043 transitions. Word has length 83 [2024-11-16 08:07:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:41,322 INFO L471 AbstractCegarLoop]: Abstraction has 9915 states and 14043 transitions. [2024-11-16 08:07:41,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 08:07:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand 9915 states and 14043 transitions. [2024-11-16 08:07:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 08:07:41,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:41,347 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:41,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:07:41,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:41,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1294098999, now seen corresponding path program 1 times [2024-11-16 08:07:41,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:41,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103534551] [2024-11-16 08:07:41,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:41,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:07:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 08:07:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:07:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:07:41,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:41,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103534551] [2024-11-16 08:07:41,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103534551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:41,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135067933] [2024-11-16 08:07:41,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:41,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:41,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:41,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:41,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:07:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:41,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:07:41,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 08:07:41,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:41,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135067933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:41,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:41,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 08:07:41,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737256323] [2024-11-16 08:07:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:41,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:07:41,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:07:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:41,791 INFO L87 Difference]: Start difference. First operand 9915 states and 14043 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:42,955 INFO L93 Difference]: Finished difference Result 29324 states and 41799 transitions. [2024-11-16 08:07:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:07:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 138 [2024-11-16 08:07:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:43,026 INFO L225 Difference]: With dead ends: 29324 [2024-11-16 08:07:43,026 INFO L226 Difference]: Without dead ends: 19421 [2024-11-16 08:07:43,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:43,057 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 198 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:43,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:43,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19421 states. [2024-11-16 08:07:44,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19421 to 19154. [2024-11-16 08:07:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19154 states, 16835 states have (on average 1.3843183843183844) internal successors, (23305), 17030 states have internal predecessors, (23305), 1398 states have call successors, (1398), 792 states have call predecessors, (1398), 920 states have return successors, (2405), 1363 states have call predecessors, (2405), 1398 states have call successors, (2405) [2024-11-16 08:07:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19154 states to 19154 states and 27108 transitions. [2024-11-16 08:07:44,646 INFO L78 Accepts]: Start accepts. Automaton has 19154 states and 27108 transitions. Word has length 138 [2024-11-16 08:07:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:44,647 INFO L471 AbstractCegarLoop]: Abstraction has 19154 states and 27108 transitions. [2024-11-16 08:07:44,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 19154 states and 27108 transitions. [2024-11-16 08:07:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 08:07:44,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:44,688 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:44,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:07:44,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 08:07:44,889 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:44,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash 326661693, now seen corresponding path program 1 times [2024-11-16 08:07:44,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:44,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138913059] [2024-11-16 08:07:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:44,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:44,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:44,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:44,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:07:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 08:07:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:07:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:07:45,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:45,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138913059] [2024-11-16 08:07:45,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138913059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:45,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659260634] [2024-11-16 08:07:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:45,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:45,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:45,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:45,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:07:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:45,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:07:45,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 08:07:45,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:45,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659260634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:45,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:45,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 08:07:45,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238002084] [2024-11-16 08:07:45,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:45,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:07:45,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:45,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:07:45,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:45,235 INFO L87 Difference]: Start difference. First operand 19154 states and 27108 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:47,069 INFO L93 Difference]: Finished difference Result 56837 states and 80988 transitions. [2024-11-16 08:07:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:07:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 138 [2024-11-16 08:07:47,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:47,242 INFO L225 Difference]: With dead ends: 56837 [2024-11-16 08:07:47,242 INFO L226 Difference]: Without dead ends: 37695 [2024-11-16 08:07:47,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 08:07:47,307 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 192 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:47,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:47,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37695 states. [2024-11-16 08:07:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37695 to 37164. [2024-11-16 08:07:49,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37164 states, 32599 states have (on average 1.384674376514617) internal successors, (45139), 32988 states have internal predecessors, (45139), 2724 states have call successors, (2724), 1584 states have call predecessors, (2724), 1840 states have return successors, (4707), 2623 states have call predecessors, (4707), 2724 states have call successors, (4707) [2024-11-16 08:07:49,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37164 states to 37164 states and 52570 transitions. [2024-11-16 08:07:49,574 INFO L78 Accepts]: Start accepts. Automaton has 37164 states and 52570 transitions. Word has length 138 [2024-11-16 08:07:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:49,575 INFO L471 AbstractCegarLoop]: Abstraction has 37164 states and 52570 transitions. [2024-11-16 08:07:49,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 37164 states and 52570 transitions. [2024-11-16 08:07:49,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 08:07:49,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:49,629 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:49,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:07:49,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 08:07:49,895 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:49,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:49,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1999141181, now seen corresponding path program 1 times [2024-11-16 08:07:49,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:49,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147872900] [2024-11-16 08:07:49,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:49,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:07:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:07:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:07:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:07:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:07:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:07:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 08:07:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:07:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:07:50,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:07:50,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147872900] [2024-11-16 08:07:50,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147872900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:07:50,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663800324] [2024-11-16 08:07:50,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:50,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:50,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:07:50,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:07:50,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:07:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:07:50,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:07:50,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:07:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 08:07:50,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:07:50,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663800324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:07:50,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:07:50,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-16 08:07:50,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371846046] [2024-11-16 08:07:50,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:07:50,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:07:50,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:07:50,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:07:50,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:07:50,277 INFO L87 Difference]: Start difference. First operand 37164 states and 52570 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:54,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:07:54,030 INFO L93 Difference]: Finished difference Result 110267 states and 157040 transitions. [2024-11-16 08:07:54,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:07:54,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 138 [2024-11-16 08:07:54,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:07:54,368 INFO L225 Difference]: With dead ends: 110267 [2024-11-16 08:07:54,368 INFO L226 Difference]: Without dead ends: 73115 [2024-11-16 08:07:54,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 08:07:54,476 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 204 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:07:54,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 460 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:07:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73115 states. [2024-11-16 08:07:58,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73115 to 72056. [2024-11-16 08:07:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72056 states, 63067 states have (on average 1.3850508189703015) internal successors, (87351), 63844 states have internal predecessors, (87351), 5308 states have call successors, (5308), 3168 states have call predecessors, (5308), 3680 states have return successors, (9243), 5075 states have call predecessors, (9243), 5308 states have call successors, (9243) [2024-11-16 08:07:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72056 states to 72056 states and 101902 transitions. [2024-11-16 08:07:59,679 INFO L78 Accepts]: Start accepts. Automaton has 72056 states and 101902 transitions. Word has length 138 [2024-11-16 08:07:59,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:07:59,680 INFO L471 AbstractCegarLoop]: Abstraction has 72056 states and 101902 transitions. [2024-11-16 08:07:59,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:07:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 72056 states and 101902 transitions. [2024-11-16 08:07:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 08:07:59,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:07:59,750 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:59,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:07:59,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:07:59,952 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:07:59,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:07:59,953 INFO L85 PathProgramCache]: Analyzing trace with hash -256639415, now seen corresponding path program 1 times [2024-11-16 08:07:59,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:07:59,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956346202] [2024-11-16 08:07:59,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:07:59,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:07:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 08:08:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 08:08:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 08:08:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:08:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 08:08:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 08:08:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-11-16 08:08:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 08:08:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 08:08:00,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:08:00,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956346202] [2024-11-16 08:08:00,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956346202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:08:00,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638607511] [2024-11-16 08:08:00,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:08:00,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:08:00,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:08:00,101 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:08:00,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 08:08:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:08:00,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 08:08:00,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:08:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 08:08:00,237 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:08:00,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638607511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:08:00,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:08:00,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 08:08:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607217665] [2024-11-16 08:08:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:08:00,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:08:00,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:08:00,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:08:00,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:08:00,241 INFO L87 Difference]: Start difference. First operand 72056 states and 101902 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:08:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:08:07,431 INFO L93 Difference]: Finished difference Result 210164 states and 301125 transitions. [2024-11-16 08:08:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:08:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 138 [2024-11-16 08:08:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:08:08,515 INFO L225 Difference]: With dead ends: 210164 [2024-11-16 08:08:08,515 INFO L226 Difference]: Without dead ends: 138121 [2024-11-16 08:08:08,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 08:08:08,683 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 206 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:08:08,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 695 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:08:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138121 states. [2024-11-16 08:08:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138121 to 138121. [2024-11-16 08:08:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138121 states, 120965 states have (on average 1.3840367048319762) internal successors, (167420), 122255 states have internal predecessors, (167420), 9941 states have call successors, (9941), 6190 states have call predecessors, (9941), 7214 states have return successors, (19274), 9739 states have call predecessors, (19274), 9941 states have call successors, (19274)