./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.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 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:23:09,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:23:09,984 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:23:09,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:23:09,990 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:23:10,013 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:23:10,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:23:10,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:23:10,015 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:23:10,016 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:23:10,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:23:10,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:23:10,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:23:10,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:23:10,018 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:23:10,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:23:10,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:23:10,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:23:10,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:23:10,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:23:10,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:23:10,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:23:10,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:23:10,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:23:10,025 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:23:10,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:23:10,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:23:10,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:23:10,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:23:10,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:23:10,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:23:10,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:23:10,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:23:10,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:23:10,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:23:10,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:23:10,028 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:23:10,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:23:10,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:23:10,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:23:10,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:23:10,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:23:10,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b [2024-11-19 22:23:10,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:23:10,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:23:10,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:23:10,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:23:10,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:23:10,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c [2024-11-19 22:23:11,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:23:11,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:23:11,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.15.cil.c [2024-11-19 22:23:11,701 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2fbb8809/8716fc58e74c450295a80b8a7dfcb7b2/FLAG400b6de9b [2024-11-19 22:23:11,713 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2fbb8809/8716fc58e74c450295a80b8a7dfcb7b2 [2024-11-19 22:23:11,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:23:11,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:23:11,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:23:11,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:23:11,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:23:11,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:23:11" (1/1) ... [2024-11-19 22:23:11,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c2cb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:11, skipping insertion in model container [2024-11-19 22:23:11,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:23:11" (1/1) ... [2024-11-19 22:23:11,769 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:23:11,909 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/transmitter.15.cil.c[706,719] [2024-11-19 22:23:12,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:23:12,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:23:12,049 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/transmitter.15.cil.c[706,719] [2024-11-19 22:23:12,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:23:12,116 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:23:12,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12 WrapperNode [2024-11-19 22:23:12,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:23:12,118 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:23:12,118 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:23:12,118 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:23:12,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,169 INFO L138 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 918 [2024-11-19 22:23:12,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:23:12,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:23:12,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:23:12,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:23:12,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,206 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]. [2024-11-19 22:23:12,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:23:12,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:23:12,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:23:12,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:23:12,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (1/1) ... [2024-11-19 22:23:12,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:23:12,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:23:12,319 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) [2024-11-19 22:23:12,325 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 [2024-11-19 22:23:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:23:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 22:23:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 22:23:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 22:23:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 22:23:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 22:23:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 22:23:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 22:23:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 22:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 22:23:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 22:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 22:23:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 22:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:23:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:23:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:23:12,501 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:23:12,504 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:23:13,304 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-19 22:23:13,305 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:23:13,320 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:23:13,321 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-19 22:23:13,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:23:13 BoogieIcfgContainer [2024-11-19 22:23:13,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:23:13,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:23:13,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:23:13,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:23:13,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:23:11" (1/3) ... [2024-11-19 22:23:13,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367a0bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:23:13, skipping insertion in model container [2024-11-19 22:23:13,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:23:12" (2/3) ... [2024-11-19 22:23:13,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367a0bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:23:13, skipping insertion in model container [2024-11-19 22:23:13,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:23:13" (3/3) ... [2024-11-19 22:23:13,327 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2024-11-19 22:23:13,340 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:23:13,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:23:13,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:23:13,405 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;@31b2f5aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:23:13,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:23:13,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 416 states, 382 states have (on average 1.643979057591623) internal successors, (628), 384 states have internal predecessors, (628), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 22:23:13,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:13,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:13,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:13,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:13,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:13,430 INFO L85 PathProgramCache]: Analyzing trace with hash 988091697, now seen corresponding path program 1 times [2024-11-19 22:23:13,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:13,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445215621] [2024-11-19 22:23:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:13,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:13,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:13,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:13,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:14,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:14,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:14,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445215621] [2024-11-19 22:23:14,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445215621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:14,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:14,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:23:14,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660454940] [2024-11-19 22:23:14,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:14,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:23:14,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:23:14,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:23:14,101 INFO L87 Difference]: Start difference. First operand has 416 states, 382 states have (on average 1.643979057591623) internal successors, (628), 384 states have internal predecessors, (628), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:23:15,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:15,880 INFO L93 Difference]: Finished difference Result 976 states and 1610 transitions. [2024-11-19 22:23:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:23:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-19 22:23:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:15,898 INFO L225 Difference]: With dead ends: 976 [2024-11-19 22:23:15,898 INFO L226 Difference]: Without dead ends: 562 [2024-11-19 22:23:15,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:23:15,906 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1112 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:15,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 823 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 22:23:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-19 22:23:15,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 411. [2024-11-19 22:23:15,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 378 states have (on average 1.552910052910053) internal successors, (587), 379 states have internal predecessors, (587), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 22:23:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 639 transitions. [2024-11-19 22:23:15,988 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 639 transitions. Word has length 184 [2024-11-19 22:23:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:15,989 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 639 transitions. [2024-11-19 22:23:15,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:23:15,989 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 639 transitions. [2024-11-19 22:23:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:15,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:15,993 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:15,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:23:15,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:15,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash -611057361, now seen corresponding path program 1 times [2024-11-19 22:23:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:15,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922306795] [2024-11-19 22:23:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:16,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:16,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:16,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:16,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922306795] [2024-11-19 22:23:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922306795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:16,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:16,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:23:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386865392] [2024-11-19 22:23:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:16,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:23:16,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:23:16,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:23:16,236 INFO L87 Difference]: Start difference. First operand 411 states and 639 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:23:17,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:17,769 INFO L93 Difference]: Finished difference Result 959 states and 1514 transitions. [2024-11-19 22:23:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 22:23:17,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2024-11-19 22:23:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:17,776 INFO L225 Difference]: With dead ends: 959 [2024-11-19 22:23:17,776 INFO L226 Difference]: Without dead ends: 562 [2024-11-19 22:23:17,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:23:17,779 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1099 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:17,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 809 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:23:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-19 22:23:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 411. [2024-11-19 22:23:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 378 states have (on average 1.5502645502645502) internal successors, (586), 379 states have internal predecessors, (586), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 22:23:17,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 638 transitions. [2024-11-19 22:23:17,828 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 638 transitions. Word has length 184 [2024-11-19 22:23:17,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:17,828 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 638 transitions. [2024-11-19 22:23:17,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 22:23:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 638 transitions. [2024-11-19 22:23:17,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:17,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:17,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:17,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:23:17,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:17,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:17,832 INFO L85 PathProgramCache]: Analyzing trace with hash -701117651, now seen corresponding path program 1 times [2024-11-19 22:23:17,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:17,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930864092] [2024-11-19 22:23:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:17,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:18,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:18,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:18,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:18,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:18,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930864092] [2024-11-19 22:23:18,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930864092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:18,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:18,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 22:23:18,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099360554] [2024-11-19 22:23:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:18,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 22:23:18,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 22:23:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 22:23:18,115 INFO L87 Difference]: Start difference. First operand 411 states and 638 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-11-19 22:23:20,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:20,677 INFO L93 Difference]: Finished difference Result 1512 states and 2417 transitions. [2024-11-19 22:23:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 22:23:20,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:20,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:20,685 INFO L225 Difference]: With dead ends: 1512 [2024-11-19 22:23:20,685 INFO L226 Difference]: Without dead ends: 1122 [2024-11-19 22:23:20,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:23:20,688 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 1662 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:20,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 1389 Invalid, 2492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 22:23:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-19 22:23:20,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 821. [2024-11-19 22:23:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 760 states have (on average 1.5605263157894738) internal successors, (1186), 762 states have internal predecessors, (1186), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2024-11-19 22:23:20,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1283 transitions. [2024-11-19 22:23:20,749 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1283 transitions. Word has length 184 [2024-11-19 22:23:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:20,750 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1283 transitions. [2024-11-19 22:23:20,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 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) [2024-11-19 22:23:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1283 transitions. [2024-11-19 22:23:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:20,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:20,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:20,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:23:20,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:20,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:20,756 INFO L85 PathProgramCache]: Analyzing trace with hash 319751884, now seen corresponding path program 1 times [2024-11-19 22:23:20,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:20,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450950070] [2024-11-19 22:23:20,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:20,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:20,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:20,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:21,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:21,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:21,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:21,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450950070] [2024-11-19 22:23:21,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450950070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:21,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:21,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:21,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272882512] [2024-11-19 22:23:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:21,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:21,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:21,058 INFO L87 Difference]: Start difference. First operand 821 states and 1283 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:25,148 INFO L93 Difference]: Finished difference Result 2696 states and 4278 transitions. [2024-11-19 22:23:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:23:25,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:25,159 INFO L225 Difference]: With dead ends: 2696 [2024-11-19 22:23:25,160 INFO L226 Difference]: Without dead ends: 1896 [2024-11-19 22:23:25,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:23:25,163 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 1841 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4853 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 4916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:25,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 2732 Invalid, 4916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4853 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-19 22:23:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-11-19 22:23:25,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1203. [2024-11-19 22:23:25,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1114 states have (on average 1.5529622980251347) internal successors, (1730), 1117 states have internal predecessors, (1730), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2024-11-19 22:23:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1871 transitions. [2024-11-19 22:23:25,216 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1871 transitions. Word has length 184 [2024-11-19 22:23:25,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:25,216 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1871 transitions. [2024-11-19 22:23:25,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1871 transitions. [2024-11-19 22:23:25,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:25,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:25,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:25,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:23:25,218 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:25,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:25,219 INFO L85 PathProgramCache]: Analyzing trace with hash -466246006, now seen corresponding path program 1 times [2024-11-19 22:23:25,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:25,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772615003] [2024-11-19 22:23:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:25,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:25,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:25,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:25,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:25,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:25,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:25,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:25,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772615003] [2024-11-19 22:23:25,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772615003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:25,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:25,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:25,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672184303] [2024-11-19 22:23:25,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:25,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:25,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:25,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:25,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:25,476 INFO L87 Difference]: Start difference. First operand 1203 states and 1871 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:29,297 INFO L93 Difference]: Finished difference Result 4159 states and 6588 transitions. [2024-11-19 22:23:29,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:23:29,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:29,309 INFO L225 Difference]: With dead ends: 4159 [2024-11-19 22:23:29,309 INFO L226 Difference]: Without dead ends: 2977 [2024-11-19 22:23:29,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:23:29,313 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1835 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:29,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 2730 Invalid, 4897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-19 22:23:29,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2024-11-19 22:23:29,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 1971. [2024-11-19 22:23:29,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1826 states have (on average 1.5470974808324205) internal successors, (2825), 1831 states have internal predecessors, (2825), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2024-11-19 22:23:29,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 3058 transitions. [2024-11-19 22:23:29,436 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 3058 transitions. Word has length 184 [2024-11-19 22:23:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:29,437 INFO L471 AbstractCegarLoop]: Abstraction has 1971 states and 3058 transitions. [2024-11-19 22:23:29,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 3058 transitions. [2024-11-19 22:23:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:29,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:29,439 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:29,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:23:29,440 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:29,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1633492424, now seen corresponding path program 1 times [2024-11-19 22:23:29,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:29,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361078800] [2024-11-19 22:23:29,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:29,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:29,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:29,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:29,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:29,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:29,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:29,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:29,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361078800] [2024-11-19 22:23:29,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361078800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:29,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:29,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:29,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478772963] [2024-11-19 22:23:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:29,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:29,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:29,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:29,702 INFO L87 Difference]: Start difference. First operand 1971 states and 3058 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:33,507 INFO L93 Difference]: Finished difference Result 6983 states and 11015 transitions. [2024-11-19 22:23:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:23:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:33,522 INFO L225 Difference]: With dead ends: 6983 [2024-11-19 22:23:33,523 INFO L226 Difference]: Without dead ends: 5033 [2024-11-19 22:23:33,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:23:33,527 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1834 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4819 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:33,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 2730 Invalid, 4884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4819 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-19 22:23:33,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5033 states. [2024-11-19 22:23:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5033 to 3508. [2024-11-19 22:23:33,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 3251 states have (on average 1.5426022762227007) internal successors, (5015), 3260 states have internal predecessors, (5015), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2024-11-19 22:23:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5438 transitions. [2024-11-19 22:23:33,667 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5438 transitions. Word has length 184 [2024-11-19 22:23:33,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:33,667 INFO L471 AbstractCegarLoop]: Abstraction has 3508 states and 5438 transitions. [2024-11-19 22:23:33,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:33,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5438 transitions. [2024-11-19 22:23:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:33,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:33,669 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:33,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:23:33,670 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:33,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:33,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1978320586, now seen corresponding path program 1 times [2024-11-19 22:23:33,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:33,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710477906] [2024-11-19 22:23:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:33,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:33,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:33,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:33,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:33,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:33,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:33,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:33,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710477906] [2024-11-19 22:23:33,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710477906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:33,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:33,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338120716] [2024-11-19 22:23:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:33,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:33,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:33,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:33,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:33,926 INFO L87 Difference]: Start difference. First operand 3508 states and 5438 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:37,737 INFO L93 Difference]: Finished difference Result 12630 states and 19885 transitions. [2024-11-19 22:23:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:23:37,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:37,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:37,767 INFO L225 Difference]: With dead ends: 12630 [2024-11-19 22:23:37,767 INFO L226 Difference]: Without dead ends: 9143 [2024-11-19 22:23:37,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:23:37,777 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1833 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:37,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 2730 Invalid, 4871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 22:23:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2024-11-19 22:23:38,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 6589. [2024-11-19 22:23:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6589 states, 6108 states have (on average 1.5397838899803535) internal successors, (9405), 6125 states have internal predecessors, (9405), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2024-11-19 22:23:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6589 states to 6589 states and 10226 transitions. [2024-11-19 22:23:38,154 INFO L78 Accepts]: Start accepts. Automaton has 6589 states and 10226 transitions. Word has length 184 [2024-11-19 22:23:38,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:38,155 INFO L471 AbstractCegarLoop]: Abstraction has 6589 states and 10226 transitions. [2024-11-19 22:23:38,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6589 states and 10226 transitions. [2024-11-19 22:23:38,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:38,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:38,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:38,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:23:38,159 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:38,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:38,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1335691896, now seen corresponding path program 1 times [2024-11-19 22:23:38,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:38,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355755969] [2024-11-19 22:23:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:38,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:38,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:38,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:38,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:38,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:38,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355755969] [2024-11-19 22:23:38,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355755969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:38,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:38,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379471544] [2024-11-19 22:23:38,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:38,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:38,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:38,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:38,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:38,366 INFO L87 Difference]: Start difference. First operand 6589 states and 10226 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:42,447 INFO L93 Difference]: Finished difference Result 23925 states and 37687 transitions. [2024-11-19 22:23:42,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:23:42,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:42,512 INFO L225 Difference]: With dead ends: 23925 [2024-11-19 22:23:42,512 INFO L226 Difference]: Without dead ends: 17357 [2024-11-19 22:23:42,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:23:42,531 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1832 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4793 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:42,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 2730 Invalid, 4858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4793 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 22:23:42,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17357 states. [2024-11-19 22:23:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17357 to 12766. [2024-11-19 22:23:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12766 states, 11837 states have (on average 1.5381431105854524) internal successors, (18207), 11870 states have internal predecessors, (18207), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-19 22:23:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12766 states to 12766 states and 19878 transitions. [2024-11-19 22:23:43,152 INFO L78 Accepts]: Start accepts. Automaton has 12766 states and 19878 transitions. Word has length 184 [2024-11-19 22:23:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:43,153 INFO L471 AbstractCegarLoop]: Abstraction has 12766 states and 19878 transitions. [2024-11-19 22:23:43,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 12766 states and 19878 transitions. [2024-11-19 22:23:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:43,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:43,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:43,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:23:43,159 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:43,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1189803786, now seen corresponding path program 1 times [2024-11-19 22:23:43,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:43,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456411895] [2024-11-19 22:23:43,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:43,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:43,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:43,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:43,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:43,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:43,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:43,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:43,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:43,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456411895] [2024-11-19 22:23:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456411895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:43,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:43,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:43,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136081643] [2024-11-19 22:23:43,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:43,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:43,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:43,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:43,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:43,422 INFO L87 Difference]: Start difference. First operand 12766 states and 19878 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:45,509 INFO L93 Difference]: Finished difference Result 30176 states and 47776 transitions. [2024-11-19 22:23:45,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:23:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:45,568 INFO L225 Difference]: With dead ends: 30176 [2024-11-19 22:23:45,568 INFO L226 Difference]: Without dead ends: 17431 [2024-11-19 22:23:45,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:23:45,602 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1474 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:45,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1141 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 22:23:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17431 states. [2024-11-19 22:23:46,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17431 to 12766. [2024-11-19 22:23:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12766 states, 11837 states have (on average 1.5353552420376784) internal successors, (18174), 11870 states have internal predecessors, (18174), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2024-11-19 22:23:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12766 states to 12766 states and 19845 transitions. [2024-11-19 22:23:46,227 INFO L78 Accepts]: Start accepts. Automaton has 12766 states and 19845 transitions. Word has length 184 [2024-11-19 22:23:46,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:46,227 INFO L471 AbstractCegarLoop]: Abstraction has 12766 states and 19845 transitions. [2024-11-19 22:23:46,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:46,228 INFO L276 IsEmpty]: Start isEmpty. Operand 12766 states and 19845 transitions. [2024-11-19 22:23:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:46,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:46,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:46,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:23:46,234 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:46,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash 578534728, now seen corresponding path program 1 times [2024-11-19 22:23:46,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:46,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792763777] [2024-11-19 22:23:46,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:46,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:46,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:46,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:46,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:46,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:46,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:46,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:46,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792763777] [2024-11-19 22:23:46,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792763777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:46,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:46,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:46,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980322116] [2024-11-19 22:23:46,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:46,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:46,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:46,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:46,445 INFO L87 Difference]: Start difference. First operand 12766 states and 19845 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:51,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:51,500 INFO L93 Difference]: Finished difference Result 46482 states and 73253 transitions. [2024-11-19 22:23:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:23:51,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:51,604 INFO L225 Difference]: With dead ends: 46482 [2024-11-19 22:23:51,604 INFO L226 Difference]: Without dead ends: 33737 [2024-11-19 22:23:51,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:23:51,634 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1824 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4755 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:51,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 2730 Invalid, 4820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4755 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-19 22:23:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33737 states. [2024-11-19 22:23:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33737 to 25184. [2024-11-19 22:23:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25184 states, 23359 states have (on average 1.5337129157926281) internal successors, (35826), 23424 states have internal predecessors, (35826), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-19 22:23:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25184 states to 25184 states and 39359 transitions. [2024-11-19 22:23:52,908 INFO L78 Accepts]: Start accepts. Automaton has 25184 states and 39359 transitions. Word has length 184 [2024-11-19 22:23:52,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:52,908 INFO L471 AbstractCegarLoop]: Abstraction has 25184 states and 39359 transitions. [2024-11-19 22:23:52,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:52,909 INFO L276 IsEmpty]: Start isEmpty. Operand 25184 states and 39359 transitions. [2024-11-19 22:23:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:52,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:52,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:52,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:23:52,919 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:52,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash -826656950, now seen corresponding path program 1 times [2024-11-19 22:23:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:52,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306514042] [2024-11-19 22:23:52,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:52,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:52,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:53,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:53,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:53,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:53,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:53,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:53,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306514042] [2024-11-19 22:23:53,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306514042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:53,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:53,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:53,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507537773] [2024-11-19 22:23:53,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:53,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:53,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:53,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:53,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:53,123 INFO L87 Difference]: Start difference. First operand 25184 states and 39359 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:23:55,538 INFO L93 Difference]: Finished difference Result 59232 states and 94159 transitions. [2024-11-19 22:23:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 22:23:55,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:23:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:23:55,651 INFO L225 Difference]: With dead ends: 59232 [2024-11-19 22:23:55,651 INFO L226 Difference]: Without dead ends: 34069 [2024-11-19 22:23:55,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:23:55,843 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1401 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:23:55,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 1142 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 22:23:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34069 states. [2024-11-19 22:23:57,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34069 to 25184. [2024-11-19 22:23:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25184 states, 23359 states have (on average 1.5309302624256176) internal successors, (35761), 23424 states have internal predecessors, (35761), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2024-11-19 22:23:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25184 states to 25184 states and 39294 transitions. [2024-11-19 22:23:57,698 INFO L78 Accepts]: Start accepts. Automaton has 25184 states and 39294 transitions. Word has length 184 [2024-11-19 22:23:57,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:23:57,699 INFO L471 AbstractCegarLoop]: Abstraction has 25184 states and 39294 transitions. [2024-11-19 22:23:57,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:23:57,699 INFO L276 IsEmpty]: Start isEmpty. Operand 25184 states and 39294 transitions. [2024-11-19 22:23:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:23:57,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:23:57,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:23:57,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:23:57,711 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:23:57,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:23:57,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1067676936, now seen corresponding path program 1 times [2024-11-19 22:23:57,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:23:57,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179949753] [2024-11-19 22:23:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:23:57,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:23:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:57,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:23:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:23:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:58,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:23:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:58,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:23:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:58,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:23:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:23:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:23:58,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:23:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179949753] [2024-11-19 22:23:58,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179949753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:23:58,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:23:58,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:23:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920398581] [2024-11-19 22:23:58,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:23:58,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:23:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:23:58,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:23:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:23:58,064 INFO L87 Difference]: Start difference. First operand 25184 states and 39294 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:24:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:24:04,511 INFO L93 Difference]: Finished difference Result 91534 states and 144673 transitions. [2024-11-19 22:24:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:24:04,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:24:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:24:04,700 INFO L225 Difference]: With dead ends: 91534 [2024-11-19 22:24:04,700 INFO L226 Difference]: Without dead ends: 66371 [2024-11-19 22:24:04,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:24:04,759 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1818 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4698 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-19 22:24:04,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 2730 Invalid, 4763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4698 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-19 22:24:04,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66371 states. [2024-11-19 22:24:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66371 to 50211. [2024-11-19 22:24:07,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50211 states, 46594 states have (on average 1.529960939176718) internal successors, (71287), 46723 states have internal predecessors, (71287), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2024-11-19 22:24:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50211 states to 50211 states and 79030 transitions. [2024-11-19 22:24:07,180 INFO L78 Accepts]: Start accepts. Automaton has 50211 states and 79030 transitions. Word has length 184 [2024-11-19 22:24:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:24:07,181 INFO L471 AbstractCegarLoop]: Abstraction has 50211 states and 79030 transitions. [2024-11-19 22:24:07,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:24:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 50211 states and 79030 transitions. [2024-11-19 22:24:07,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:24:07,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:24:07,199 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:24:07,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:24:07,199 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:24:07,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:24:07,199 INFO L85 PathProgramCache]: Analyzing trace with hash 144509510, now seen corresponding path program 1 times [2024-11-19 22:24:07,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:24:07,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239215092] [2024-11-19 22:24:07,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:24:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:24:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:07,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:24:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:07,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:24:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:07,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:24:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:07,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:24:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:07,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:24:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:24:07,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:24:07,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239215092] [2024-11-19 22:24:07,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239215092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:24:07,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:24:07,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:24:07,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143648329] [2024-11-19 22:24:07,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:24:07,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:24:07,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:24:07,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:24:07,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:24:07,418 INFO L87 Difference]: Start difference. First operand 50211 states and 79030 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:24:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:24:16,342 INFO L93 Difference]: Finished difference Result 181903 states and 290155 transitions. [2024-11-19 22:24:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 22:24:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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 184 [2024-11-19 22:24:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:24:16,903 INFO L225 Difference]: With dead ends: 181903 [2024-11-19 22:24:16,903 INFO L226 Difference]: Without dead ends: 131713 [2024-11-19 22:24:17,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:24:17,070 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 1817 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 4685 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 4750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:24:17,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 2730 Invalid, 4750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4685 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-19 22:24:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131713 states. [2024-11-19 22:24:22,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131713 to 100388. [2024-11-19 22:24:22,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100388 states, 93187 states have (on average 1.5294086084968934) internal successors, (142521), 93444 states have internal predecessors, (142521), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2024-11-19 22:24:22,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100388 states to 100388 states and 160142 transitions. [2024-11-19 22:24:22,446 INFO L78 Accepts]: Start accepts. Automaton has 100388 states and 160142 transitions. Word has length 184 [2024-11-19 22:24:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:24:22,447 INFO L471 AbstractCegarLoop]: Abstraction has 100388 states and 160142 transitions. [2024-11-19 22:24:22,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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) [2024-11-19 22:24:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 100388 states and 160142 transitions. [2024-11-19 22:24:22,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-19 22:24:22,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:24:22,478 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:24:22,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:24:22,478 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:24:22,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:24:22,479 INFO L85 PathProgramCache]: Analyzing trace with hash 530371912, now seen corresponding path program 1 times [2024-11-19 22:24:22,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:24:22,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142600427] [2024-11-19 22:24:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:24:22,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:24:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:22,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-19 22:24:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:22,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 22:24:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:22,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:24:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:22,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-19 22:24:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:22,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-19 22:24:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:24:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:24:22,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:24:22,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142600427] [2024-11-19 22:24:22,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142600427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:24:22,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:24:22,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:24:22,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198524756] [2024-11-19 22:24:22,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:24:22,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:24:22,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:24:22,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:24:22,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:24:22,705 INFO L87 Difference]: Start difference. First operand 100388 states and 160142 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 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)