./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.11.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:34:59,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:35:00,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:35:00,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:35:00,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:35:00,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:35:00,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:35:00,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:35:00,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:35:00,057 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:35:00,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:35:00,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:35:00,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:35:00,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:35:00,060 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:35:00,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:35:00,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:35:00,061 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:35:00,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:35:00,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:35:00,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:35:00,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:35:00,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:35:00,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:35:00,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:35:00,067 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:35:00,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:35:00,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:35:00,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:35:00,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:35:00,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:35:00,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:35:00,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:35:00,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:35:00,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:35:00,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:35:00,070 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:35:00,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:35:00,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:35:00,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:35:00,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:35:00,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:35:00,072 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e [2024-11-18 14:35:00,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:35:00,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:35:00,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:35:00,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:35:00,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:35:00,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.11.cil-2.c [2024-11-18 14:35:01,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:35:02,175 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:35:02,175 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-2.c [2024-11-18 14:35:02,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e541815a1/8f7e1fabadbe41ebaaeb20bbd26ea20d/FLAGdd24b8599 [2024-11-18 14:35:02,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e541815a1/8f7e1fabadbe41ebaaeb20bbd26ea20d [2024-11-18 14:35:02,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:35:02,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:35:02,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:35:02,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:35:02,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:35:02,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8209c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02, skipping insertion in model container [2024-11-18 14:35:02,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:35:02,477 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-2.c[671,684] [2024-11-18 14:35:02,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:35:02,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:35:02,694 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-2.c[671,684] [2024-11-18 14:35:02,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:35:02,784 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:35:02,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02 WrapperNode [2024-11-18 14:35:02,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:35:02,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:35:02,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:35:02,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:35:02,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,850 INFO L138 Inliner]: procedures = 50, calls = 64, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 819 [2024-11-18 14:35:02,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:35:02,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:35:02,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:35:02,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:35:02,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,909 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]. [2024-11-18 14:35:02,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:35:02,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:35:02,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:35:02,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:35:02,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (1/1) ... [2024-11-18 14:35:02,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:35:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:35:03,012 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) [2024-11-18 14:35:03,018 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 [2024-11-18 14:35:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:35:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-18 14:35:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-18 14:35:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-18 14:35:03,063 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-18 14:35:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-18 14:35:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-18 14:35:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-18 14:35:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-18 14:35:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-18 14:35:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-18 14:35:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-18 14:35:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-18 14:35:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:35:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:35:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:35:03,189 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:35:03,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:35:04,104 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-18 14:35:04,104 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:35:04,130 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:35:04,130 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-18 14:35:04,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:04 BoogieIcfgContainer [2024-11-18 14:35:04,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:35:04,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:35:04,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:35:04,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:35:04,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:35:02" (1/3) ... [2024-11-18 14:35:04,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a611bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:35:04, skipping insertion in model container [2024-11-18 14:35:04,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:02" (2/3) ... [2024-11-18 14:35:04,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a611bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:35:04, skipping insertion in model container [2024-11-18 14:35:04,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:04" (3/3) ... [2024-11-18 14:35:04,140 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.11.cil-2.c [2024-11-18 14:35:04,161 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:35:04,161 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:35:04,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:35:04,280 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;@684c4e77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:35:04,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:35:04,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 336 states have (on average 1.6369047619047619) internal successors, (550), 338 states have internal predecessors, (550), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-18 14:35:04,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:04,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:04,306 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] [2024-11-18 14:35:04,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:04,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:04,311 INFO L85 PathProgramCache]: Analyzing trace with hash -622938705, now seen corresponding path program 1 times [2024-11-18 14:35:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306093276] [2024-11-18 14:35:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:04,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:04,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306093276] [2024-11-18 14:35:04,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306093276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:04,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:04,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:35:04,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786801543] [2024-11-18 14:35:04,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:04,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:35:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:35:04,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:35:04,829 INFO L87 Difference]: Start difference. First operand has 369 states, 336 states have (on average 1.6369047619047619) internal successors, (550), 338 states have internal predecessors, (550), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:04,949 INFO L93 Difference]: Finished difference Result 729 states and 1187 transitions. [2024-11-18 14:35:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:35:04,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 1 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 166 [2024-11-18 14:35:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:04,972 INFO L225 Difference]: With dead ends: 729 [2024-11-18 14:35:04,973 INFO L226 Difference]: Without dead ends: 364 [2024-11-18 14:35:04,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:35:04,982 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 562 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:04,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 568 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:35:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-18 14:35:05,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-18 14:35:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 332 states have (on average 1.5512048192771084) internal successors, (515), 333 states have internal predecessors, (515), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-18 14:35:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 565 transitions. [2024-11-18 14:35:05,071 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 565 transitions. Word has length 166 [2024-11-18 14:35:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:05,073 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 565 transitions. [2024-11-18 14:35:05,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 565 transitions. [2024-11-18 14:35:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:05,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:05,079 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] [2024-11-18 14:35:05,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:35:05,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:05,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash -967766867, now seen corresponding path program 1 times [2024-11-18 14:35:05,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:05,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697075460] [2024-11-18 14:35:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:05,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:05,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697075460] [2024-11-18 14:35:05,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697075460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:05,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:05,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:35:05,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97303049] [2024-11-18 14:35:05,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:05,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:35:05,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:05,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:35:05,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:35:05,304 INFO L87 Difference]: Start difference. First operand 364 states and 565 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:05,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:05,377 INFO L93 Difference]: Finished difference Result 712 states and 1103 transitions. [2024-11-18 14:35:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:35:05,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 1 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 166 [2024-11-18 14:35:05,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:05,385 INFO L225 Difference]: With dead ends: 712 [2024-11-18 14:35:05,385 INFO L226 Difference]: Without dead ends: 364 [2024-11-18 14:35:05,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:35:05,388 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 549 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:05,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 563 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:35:05,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-18 14:35:05,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-18 14:35:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 332 states have (on average 1.5481927710843373) internal successors, (514), 333 states have internal predecessors, (514), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-18 14:35:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 564 transitions. [2024-11-18 14:35:05,416 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 564 transitions. Word has length 166 [2024-11-18 14:35:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:05,417 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 564 transitions. [2024-11-18 14:35:05,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 564 transitions. [2024-11-18 14:35:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:05,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:05,420 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] [2024-11-18 14:35:05,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:35:05,420 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:05,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1353629269, now seen corresponding path program 1 times [2024-11-18 14:35:05,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:05,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240859166] [2024-11-18 14:35:05,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:05,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:05,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:05,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240859166] [2024-11-18 14:35:05,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240859166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:05,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:05,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:35:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811948115] [2024-11-18 14:35:05,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:05,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:35:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:35:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:35:05,711 INFO L87 Difference]: Start difference. First operand 364 states and 564 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:06,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:06,521 INFO L93 Difference]: Finished difference Result 1098 states and 1720 transitions. [2024-11-18 14:35:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:35:06,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:06,528 INFO L225 Difference]: With dead ends: 1098 [2024-11-18 14:35:06,529 INFO L226 Difference]: Without dead ends: 753 [2024-11-18 14:35:06,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:06,533 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 1077 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:06,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1709 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:35:06,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-18 14:35:06,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 726. [2024-11-18 14:35:06,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 667 states have (on average 1.56071964017991) internal successors, (1041), 669 states have internal predecessors, (1041), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2024-11-18 14:35:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1132 transitions. [2024-11-18 14:35:06,592 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1132 transitions. Word has length 166 [2024-11-18 14:35:06,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:06,595 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1132 transitions. [2024-11-18 14:35:06,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:06,595 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1132 transitions. [2024-11-18 14:35:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:06,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:06,600 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] [2024-11-18 14:35:06,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:35:06,600 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:06,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:06,601 INFO L85 PathProgramCache]: Analyzing trace with hash -354043089, now seen corresponding path program 1 times [2024-11-18 14:35:06,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:06,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359366313] [2024-11-18 14:35:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:06,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:06,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:06,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:06,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359366313] [2024-11-18 14:35:06,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359366313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:06,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:06,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:06,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205696477] [2024-11-18 14:35:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:06,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:06,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:06,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:06,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:06,852 INFO L87 Difference]: Start difference. First operand 726 states and 1132 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:07,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:07,766 INFO L93 Difference]: Finished difference Result 1893 states and 2989 transitions. [2024-11-18 14:35:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:07,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:07,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:07,774 INFO L225 Difference]: With dead ends: 1893 [2024-11-18 14:35:07,775 INFO L226 Difference]: Without dead ends: 1186 [2024-11-18 14:35:07,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:07,781 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 1085 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:07,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 3043 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 14:35:07,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2024-11-18 14:35:07,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1063. [2024-11-18 14:35:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 977 states have (on average 1.5537359263050154) internal successors, (1518), 980 states have internal predecessors, (1518), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2024-11-18 14:35:07,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1652 transitions. [2024-11-18 14:35:07,844 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1652 transitions. Word has length 166 [2024-11-18 14:35:07,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:07,844 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1652 transitions. [2024-11-18 14:35:07,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1652 transitions. [2024-11-18 14:35:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:07,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:07,847 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] [2024-11-18 14:35:07,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:35:07,848 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:07,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash -15755539, now seen corresponding path program 1 times [2024-11-18 14:35:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:07,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832019758] [2024-11-18 14:35:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:08,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:08,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832019758] [2024-11-18 14:35:08,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832019758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:08,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:08,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:08,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143051545] [2024-11-18 14:35:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:08,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:08,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:08,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:08,069 INFO L87 Difference]: Start difference. First operand 1063 states and 1652 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:08,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:08,938 INFO L93 Difference]: Finished difference Result 2968 states and 4676 transitions. [2024-11-18 14:35:08,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:08,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:08,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:08,953 INFO L225 Difference]: With dead ends: 2968 [2024-11-18 14:35:08,954 INFO L226 Difference]: Without dead ends: 1924 [2024-11-18 14:35:08,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:08,960 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 1080 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:08,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 3027 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:35:08,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2024-11-18 14:35:09,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1782. [2024-11-18 14:35:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1640 states have (on average 1.5579268292682926) internal successors, (2555), 1647 states have internal predecessors, (2555), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2024-11-18 14:35:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2781 transitions. [2024-11-18 14:35:09,052 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2781 transitions. Word has length 166 [2024-11-18 14:35:09,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:09,053 INFO L471 AbstractCegarLoop]: Abstraction has 1782 states and 2781 transitions. [2024-11-18 14:35:09,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2781 transitions. [2024-11-18 14:35:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:09,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:09,056 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] [2024-11-18 14:35:09,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:35:09,056 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:09,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:09,057 INFO L85 PathProgramCache]: Analyzing trace with hash 410798959, now seen corresponding path program 1 times [2024-11-18 14:35:09,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:09,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078318276] [2024-11-18 14:35:09,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:09,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:09,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:09,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078318276] [2024-11-18 14:35:09,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078318276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:09,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:09,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792450257] [2024-11-18 14:35:09,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:09,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:09,243 INFO L87 Difference]: Start difference. First operand 1782 states and 2781 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:10,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:10,211 INFO L93 Difference]: Finished difference Result 5293 states and 8403 transitions. [2024-11-18 14:35:10,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:10,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:10,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:10,231 INFO L225 Difference]: With dead ends: 5293 [2024-11-18 14:35:10,232 INFO L226 Difference]: Without dead ends: 3530 [2024-11-18 14:35:10,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:10,242 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 1075 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:10,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 3015 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 14:35:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2024-11-18 14:35:10,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3349. [2024-11-18 14:35:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3089 states have (on average 1.575590806086112) internal successors, (4867), 3110 states have internal predecessors, (4867), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2024-11-18 14:35:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 5301 transitions. [2024-11-18 14:35:10,408 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 5301 transitions. Word has length 166 [2024-11-18 14:35:10,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:10,408 INFO L471 AbstractCegarLoop]: Abstraction has 3349 states and 5301 transitions. [2024-11-18 14:35:10,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 5301 transitions. [2024-11-18 14:35:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:10,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:10,413 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] [2024-11-18 14:35:10,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:35:10,413 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:10,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash -129630547, now seen corresponding path program 1 times [2024-11-18 14:35:10,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:10,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813902419] [2024-11-18 14:35:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:10,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:10,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:10,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813902419] [2024-11-18 14:35:10,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813902419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:10,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:10,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:10,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719051828] [2024-11-18 14:35:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:10,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:10,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:10,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:10,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:10,599 INFO L87 Difference]: Start difference. First operand 3349 states and 5301 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:11,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:11,581 INFO L93 Difference]: Finished difference Result 10440 states and 16893 transitions. [2024-11-18 14:35:11,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:11,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:11,623 INFO L225 Difference]: With dead ends: 10440 [2024-11-18 14:35:11,624 INFO L226 Difference]: Without dead ends: 7110 [2024-11-18 14:35:11,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:11,637 INFO L432 NwaCegarLoop]: 736 mSDtfsCounter, 1070 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:11,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 3003 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:35:11,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7110 states. [2024-11-18 14:35:11,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7110 to 6852. [2024-11-18 14:35:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6852 states, 6338 states have (on average 1.6047649100662669) internal successors, (10171), 6405 states have internal predecessors, (10171), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2024-11-18 14:35:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6852 states to 6852 states and 11117 transitions. [2024-11-18 14:35:11,977 INFO L78 Accepts]: Start accepts. Automaton has 6852 states and 11117 transitions. Word has length 166 [2024-11-18 14:35:11,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:11,977 INFO L471 AbstractCegarLoop]: Abstraction has 6852 states and 11117 transitions. [2024-11-18 14:35:11,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 6852 states and 11117 transitions. [2024-11-18 14:35:11,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:11,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:11,983 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] [2024-11-18 14:35:11,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:35:11,983 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:11,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:11,984 INFO L85 PathProgramCache]: Analyzing trace with hash -285611089, now seen corresponding path program 1 times [2024-11-18 14:35:11,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:11,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233354912] [2024-11-18 14:35:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:11,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:12,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:12,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233354912] [2024-11-18 14:35:12,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233354912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:12,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:12,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:12,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144379985] [2024-11-18 14:35:12,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:12,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:12,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:12,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:12,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:12,160 INFO L87 Difference]: Start difference. First operand 6852 states and 11117 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:13,428 INFO L93 Difference]: Finished difference Result 22151 states and 36959 transitions. [2024-11-18 14:35:13,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:13,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:13,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:13,520 INFO L225 Difference]: With dead ends: 22151 [2024-11-18 14:35:13,521 INFO L226 Difference]: Without dead ends: 15318 [2024-11-18 14:35:13,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:13,549 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 1065 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:13,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 2991 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:35:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15318 states. [2024-11-18 14:35:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15318 to 14911. [2024-11-18 14:35:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14911 states, 13835 states have (on average 1.6418503794723527) internal successors, (22715), 14048 states have internal predecessors, (22715), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2024-11-18 14:35:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14911 states to 14911 states and 25069 transitions. [2024-11-18 14:35:14,273 INFO L78 Accepts]: Start accepts. Automaton has 14911 states and 25069 transitions. Word has length 166 [2024-11-18 14:35:14,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:14,274 INFO L471 AbstractCegarLoop]: Abstraction has 14911 states and 25069 transitions. [2024-11-18 14:35:14,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:14,274 INFO L276 IsEmpty]: Start isEmpty. Operand 14911 states and 25069 transitions. [2024-11-18 14:35:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:14,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:14,283 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] [2024-11-18 14:35:14,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:35:14,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:14,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 124999277, now seen corresponding path program 1 times [2024-11-18 14:35:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316556878] [2024-11-18 14:35:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:14,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:14,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316556878] [2024-11-18 14:35:14,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316556878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:14,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:14,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975668599] [2024-11-18 14:35:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:14,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:14,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:14,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:14,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:14,480 INFO L87 Difference]: Start difference. First operand 14911 states and 25069 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:16,297 INFO L93 Difference]: Finished difference Result 49332 states and 85857 transitions. [2024-11-18 14:35:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:16,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:16,567 INFO L225 Difference]: With dead ends: 49332 [2024-11-18 14:35:16,567 INFO L226 Difference]: Without dead ends: 34440 [2024-11-18 14:35:16,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:16,624 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 1057 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:16,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2965 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 14:35:16,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34440 states. [2024-11-18 14:35:18,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34440 to 33783. [2024-11-18 14:35:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33783 states, 31421 states have (on average 1.6806912574392923) internal successors, (52809), 32088 states have internal predecessors, (52809), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2024-11-18 14:35:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33783 states to 33783 states and 59515 transitions. [2024-11-18 14:35:18,311 INFO L78 Accepts]: Start accepts. Automaton has 33783 states and 59515 transitions. Word has length 166 [2024-11-18 14:35:18,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:18,312 INFO L471 AbstractCegarLoop]: Abstraction has 33783 states and 59515 transitions. [2024-11-18 14:35:18,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:18,313 INFO L276 IsEmpty]: Start isEmpty. Operand 33783 states and 59515 transitions. [2024-11-18 14:35:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:18,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:18,327 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] [2024-11-18 14:35:18,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:35:18,328 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:18,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:18,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2010883925, now seen corresponding path program 1 times [2024-11-18 14:35:18,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:18,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27630876] [2024-11-18 14:35:18,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:18,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:18,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:18,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27630876] [2024-11-18 14:35:18,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27630876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:18,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:18,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977072643] [2024-11-18 14:35:18,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:18,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:18,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:18,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:18,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:18,487 INFO L87 Difference]: Start difference. First operand 33783 states and 59515 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:21,327 INFO L93 Difference]: Finished difference Result 114476 states and 210905 transitions. [2024-11-18 14:35:21,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:21,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:21,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:21,966 INFO L225 Difference]: With dead ends: 114476 [2024-11-18 14:35:21,966 INFO L226 Difference]: Without dead ends: 80712 [2024-11-18 14:35:22,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:22,055 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 1052 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:22,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 2953 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:35:22,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80712 states. [2024-11-18 14:35:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80712 to 79546. [2024-11-18 14:35:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79546 states, 74126 states have (on average 1.7206513234222809) internal successors, (127545), 76187 states have internal predecessors, (127545), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2024-11-18 14:35:25,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79546 states to 79546 states and 149099 transitions. [2024-11-18 14:35:25,994 INFO L78 Accepts]: Start accepts. Automaton has 79546 states and 149099 transitions. Word has length 166 [2024-11-18 14:35:25,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:25,996 INFO L471 AbstractCegarLoop]: Abstraction has 79546 states and 149099 transitions. [2024-11-18 14:35:25,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 79546 states and 149099 transitions. [2024-11-18 14:35:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:26,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:26,025 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] [2024-11-18 14:35:26,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:35:26,025 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:26,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:26,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1941236051, now seen corresponding path program 1 times [2024-11-18 14:35:26,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:26,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168804103] [2024-11-18 14:35:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:26,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:26,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:26,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168804103] [2024-11-18 14:35:26,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168804103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:26,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:26,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:26,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485832627] [2024-11-18 14:35:26,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:26,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:26,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:26,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:26,208 INFO L87 Difference]: Start difference. First operand 79546 states and 149099 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:35:32,629 INFO L93 Difference]: Finished difference Result 275321 states and 546907 transitions. [2024-11-18 14:35:32,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:35:32,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 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 166 [2024-11-18 14:35:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:35:33,714 INFO L225 Difference]: With dead ends: 275321 [2024-11-18 14:35:33,714 INFO L226 Difference]: Without dead ends: 195794 [2024-11-18 14:35:34,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:35:34,133 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 1047 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:35:34,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 2941 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:35:34,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195794 states. [2024-11-18 14:35:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195794 to 193671. [2024-11-18 14:35:41,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193671 states, 180677 states have (on average 1.7588126878351975) internal successors, (317777), 186984 states have internal predecessors, (317777), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2024-11-18 14:35:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193671 states to 193671 states and 393603 transitions. [2024-11-18 14:35:43,004 INFO L78 Accepts]: Start accepts. Automaton has 193671 states and 393603 transitions. Word has length 166 [2024-11-18 14:35:43,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:35:43,004 INFO L471 AbstractCegarLoop]: Abstraction has 193671 states and 393603 transitions. [2024-11-18 14:35:43,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:35:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 193671 states and 393603 transitions. [2024-11-18 14:35:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-18 14:35:43,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:35:43,071 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] [2024-11-18 14:35:43,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:35:43,072 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:35:43,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:35:43,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1523347349, now seen corresponding path program 1 times [2024-11-18 14:35:43,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:35:43,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879544196] [2024-11-18 14:35:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:35:43,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:35:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:35:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:35:43,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:35:43,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879544196] [2024-11-18 14:35:43,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879544196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:35:43,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:35:43,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:35:43,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150099084] [2024-11-18 14:35:43,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:35:43,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:35:43,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:35:43,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:35:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:35:43,288 INFO L87 Difference]: Start difference. First operand 193671 states and 393603 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 5 states have internal predecessors, (156), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)