./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/token_ring.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:18:50,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:18:50,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:18:50,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:18:50,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:18:51,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:18:51,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:18:51,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:18:51,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:18:51,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:18:51,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:18:51,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:18:51,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:18:51,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:18:51,036 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:18:51,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:18:51,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:18:51,037 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:18:51,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:18:51,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:18:51,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:18:51,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:18:51,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:18:51,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:18:51,041 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:18:51,041 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:18:51,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:18:51,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:18:51,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:18:51,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:18:51,043 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:18:51,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:18:51,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:18:51,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:18:51,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:18:51,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:18:51,045 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:18:51,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:18:51,045 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:18:51,045 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:18:51,046 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:18:51,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:18:51,048 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 [2024-11-22 02:18:51,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:18:51,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:18:51,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:18:51,340 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:18:51,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:18:51,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-11-22 02:18:52,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:18:53,070 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:18:53,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-11-22 02:18:53,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/587c89d63/aa5aac4a2c644cd2868d13120e936935/FLAGd34269c8c [2024-11-22 02:18:53,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/587c89d63/aa5aac4a2c644cd2868d13120e936935 [2024-11-22 02:18:53,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:18:53,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:18:53,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:18:53,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:18:53,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:18:53,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e91d643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53, skipping insertion in model container [2024-11-22 02:18:53,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:18:53,349 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c[671,684] [2024-11-22 02:18:53,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:18:53,448 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:18:53,461 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c[671,684] [2024-11-22 02:18:53,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:18:53,516 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:18:53,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53 WrapperNode [2024-11-22 02:18:53,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:18:53,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:18:53,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:18:53,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:18:53,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,570 INFO L138 Inliner]: procedures = 34, calls = 40, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 339 [2024-11-22 02:18:53,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:18:53,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:18:53,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:18:53,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:18:53,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,585 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,604 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]. [2024-11-22 02:18:53,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:18:53,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:18:53,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:18:53,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:18:53,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (1/1) ... [2024-11-22 02:18:53,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:18:53,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:18:53,695 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) [2024-11-22 02:18:53,699 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 [2024-11-22 02:18:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:18:53,753 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-22 02:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-22 02:18:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-22 02:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-22 02:18:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 02:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 02:18:53,755 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-22 02:18:53,755 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-22 02:18:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-22 02:18:53,756 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-22 02:18:53,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-22 02:18:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-22 02:18:53,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:18:53,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:18:53,862 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:18:53,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:18:54,323 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-22 02:18:54,325 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:18:54,343 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:18:54,343 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-22 02:18:54,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:18:54 BoogieIcfgContainer [2024-11-22 02:18:54,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:18:54,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:18:54,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:18:54,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:18:54,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:18:53" (1/3) ... [2024-11-22 02:18:54,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7852e8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:18:54, skipping insertion in model container [2024-11-22 02:18:54,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:18:53" (2/3) ... [2024-11-22 02:18:54,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7852e8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:18:54, skipping insertion in model container [2024-11-22 02:18:54,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:18:54" (3/3) ... [2024-11-22 02:18:54,362 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.03.cil-2.c [2024-11-22 02:18:54,377 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:18:54,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:18:54,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:18:54,441 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;@77282479, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:18:54,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:18:54,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 136 states have (on average 1.5735294117647058) internal successors, (214), 138 states have internal predecessors, (214), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 02:18:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:54,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:54,458 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] [2024-11-22 02:18:54,458 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:54,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash 733541545, now seen corresponding path program 1 times [2024-11-22 02:18:54,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:54,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089126081] [2024-11-22 02:18:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:54,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:54,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089126081] [2024-11-22 02:18:54,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089126081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:54,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:54,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:18:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715795439] [2024-11-22 02:18:54,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:54,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:18:54,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:54,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:18:54,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:18:54,901 INFO L87 Difference]: Start difference. First operand has 161 states, 136 states have (on average 1.5735294117647058) internal successors, (214), 138 states have internal predecessors, (214), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-22 02:18:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:54,977 INFO L93 Difference]: Finished difference Result 313 states and 483 transitions. [2024-11-22 02:18:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:18:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:54,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:54,989 INFO L225 Difference]: With dead ends: 313 [2024-11-22 02:18:54,989 INFO L226 Difference]: Without dead ends: 156 [2024-11-22 02:18:54,993 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 [2024-11-22 02:18:54,996 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 226 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 232 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 [2024-11-22 02:18:54,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:18:55,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-22 02:18:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-22 02:18:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 132 states have (on average 1.4772727272727273) internal successors, (195), 133 states have internal predecessors, (195), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-22 02:18:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 229 transitions. [2024-11-22 02:18:55,050 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 229 transitions. Word has length 78 [2024-11-22 02:18:55,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:55,051 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 229 transitions. [2024-11-22 02:18:55,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-22 02:18:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 229 transitions. [2024-11-22 02:18:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:55,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:55,055 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] [2024-11-22 02:18:55,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:18:55,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:55,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:55,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1226167719, now seen corresponding path program 1 times [2024-11-22 02:18:55,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:55,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621722212] [2024-11-22 02:18:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:55,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:55,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:55,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621722212] [2024-11-22 02:18:55,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621722212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:55,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:55,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:18:55,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576746123] [2024-11-22 02:18:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:55,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:18:55,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:55,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:18:55,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:18:55,295 INFO L87 Difference]: Start difference. First operand 156 states and 229 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-22 02:18:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:55,728 INFO L93 Difference]: Finished difference Result 458 states and 681 transitions. [2024-11-22 02:18:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:18:55,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:55,734 INFO L225 Difference]: With dead ends: 458 [2024-11-22 02:18:55,737 INFO L226 Difference]: Without dead ends: 313 [2024-11-22 02:18:55,738 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 [2024-11-22 02:18:55,739 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 390 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:55,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 611 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:18:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-22 02:18:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 302. [2024-11-22 02:18:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 259 states have (on average 1.4903474903474903) internal successors, (386), 261 states have internal predecessors, (386), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2024-11-22 02:18:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 445 transitions. [2024-11-22 02:18:55,794 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 445 transitions. Word has length 78 [2024-11-22 02:18:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:55,794 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 445 transitions. [2024-11-22 02:18:55,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-22 02:18:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 445 transitions. [2024-11-22 02:18:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:55,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:55,799 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] [2024-11-22 02:18:55,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:18:55,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:55,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:55,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1463215915, now seen corresponding path program 1 times [2024-11-22 02:18:55,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:55,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853688537] [2024-11-22 02:18:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:55,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:56,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:56,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:56,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853688537] [2024-11-22 02:18:56,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853688537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:56,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:56,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:18:56,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617551276] [2024-11-22 02:18:56,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:56,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:18:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:18:56,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:56,075 INFO L87 Difference]: Start difference. First operand 302 states and 445 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:56,599 INFO L93 Difference]: Finished difference Result 768 states and 1140 transitions. [2024-11-22 02:18:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:18:56,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:56,607 INFO L225 Difference]: With dead ends: 768 [2024-11-22 02:18:56,607 INFO L226 Difference]: Without dead ends: 477 [2024-11-22 02:18:56,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:56,610 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 379 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:56,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1129 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:18:56,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-22 02:18:56,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 438. [2024-11-22 02:18:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 376 states have (on average 1.4813829787234043) internal successors, (557), 379 states have internal predecessors, (557), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (45), 42 states have call predecessors, (45), 41 states have call successors, (45) [2024-11-22 02:18:56,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 643 transitions. [2024-11-22 02:18:56,671 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 643 transitions. Word has length 78 [2024-11-22 02:18:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:56,673 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 643 transitions. [2024-11-22 02:18:56,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 643 transitions. [2024-11-22 02:18:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:56,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:56,679 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] [2024-11-22 02:18:56,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:18:56,680 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:56,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:56,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1045819309, now seen corresponding path program 1 times [2024-11-22 02:18:56,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:56,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7111189] [2024-11-22 02:18:56,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:56,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:56,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:56,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7111189] [2024-11-22 02:18:56,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7111189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:56,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:56,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:18:56,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898403777] [2024-11-22 02:18:56,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:56,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:18:56,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:56,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:18:56,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:56,807 INFO L87 Difference]: Start difference. First operand 438 states and 643 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:57,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:57,261 INFO L93 Difference]: Finished difference Result 1189 states and 1759 transitions. [2024-11-22 02:18:57,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:18:57,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:57,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:57,268 INFO L225 Difference]: With dead ends: 1189 [2024-11-22 02:18:57,269 INFO L226 Difference]: Without dead ends: 762 [2024-11-22 02:18:57,273 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 [2024-11-22 02:18:57,274 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 374 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:57,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1113 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:18:57,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-22 02:18:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 721. [2024-11-22 02:18:57,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 619 states have (on average 1.4765751211631664) internal successors, (914), 626 states have internal predecessors, (914), 65 states have call successors, (65), 30 states have call predecessors, (65), 36 states have return successors, (81), 68 states have call predecessors, (81), 65 states have call successors, (81) [2024-11-22 02:18:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1060 transitions. [2024-11-22 02:18:57,335 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1060 transitions. Word has length 78 [2024-11-22 02:18:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:57,335 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1060 transitions. [2024-11-22 02:18:57,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:57,336 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1060 transitions. [2024-11-22 02:18:57,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:57,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:57,338 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] [2024-11-22 02:18:57,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:18:57,338 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:57,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:57,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1725091563, now seen corresponding path program 1 times [2024-11-22 02:18:57,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:57,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595911473] [2024-11-22 02:18:57,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:57,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:57,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:57,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595911473] [2024-11-22 02:18:57,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595911473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:57,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:18:57,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469417705] [2024-11-22 02:18:57,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:57,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:18:57,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:18:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:57,449 INFO L87 Difference]: Start difference. First operand 721 states and 1060 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:57,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:57,940 INFO L93 Difference]: Finished difference Result 2174 states and 3231 transitions. [2024-11-22 02:18:57,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:18:57,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:57,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:57,950 INFO L225 Difference]: With dead ends: 2174 [2024-11-22 02:18:57,950 INFO L226 Difference]: Without dead ends: 1464 [2024-11-22 02:18:57,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:57,954 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 473 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:57,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1088 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:18:57,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-22 02:18:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1302. [2024-11-22 02:18:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1118 states have (on average 1.479427549194991) internal successors, (1654), 1139 states have internal predecessors, (1654), 109 states have call successors, (109), 54 states have call predecessors, (109), 74 states have return successors, (173), 116 states have call predecessors, (173), 109 states have call successors, (173) [2024-11-22 02:18:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1936 transitions. [2024-11-22 02:18:58,051 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1936 transitions. Word has length 78 [2024-11-22 02:18:58,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:58,051 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1936 transitions. [2024-11-22 02:18:58,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1936 transitions. [2024-11-22 02:18:58,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:58,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:58,054 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] [2024-11-22 02:18:58,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:18:58,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:58,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:58,055 INFO L85 PathProgramCache]: Analyzing trace with hash -608301075, now seen corresponding path program 1 times [2024-11-22 02:18:58,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:58,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405149267] [2024-11-22 02:18:58,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:58,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:58,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:58,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405149267] [2024-11-22 02:18:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405149267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:58,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:58,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:18:58,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557152236] [2024-11-22 02:18:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:58,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:18:58,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:18:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:58,144 INFO L87 Difference]: Start difference. First operand 1302 states and 1936 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:58,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:58,706 INFO L93 Difference]: Finished difference Result 4029 states and 6101 transitions. [2024-11-22 02:18:58,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:18:58,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:58,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:58,724 INFO L225 Difference]: With dead ends: 4029 [2024-11-22 02:18:58,724 INFO L226 Difference]: Without dead ends: 2738 [2024-11-22 02:18:58,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:58,729 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 386 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:58,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1072 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:18:58,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2024-11-22 02:18:58,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2475. [2024-11-22 02:18:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2113 states have (on average 1.4813061997160435) internal successors, (3130), 2180 states have internal predecessors, (3130), 193 states have call successors, (193), 102 states have call predecessors, (193), 168 states have return successors, (449), 208 states have call predecessors, (449), 193 states have call successors, (449) [2024-11-22 02:18:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3772 transitions. [2024-11-22 02:18:58,909 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3772 transitions. Word has length 78 [2024-11-22 02:18:58,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:18:58,910 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 3772 transitions. [2024-11-22 02:18:58,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3772 transitions. [2024-11-22 02:18:58,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:18:58,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:18:58,913 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] [2024-11-22 02:18:58,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:18:58,914 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:18:58,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:18:58,915 INFO L85 PathProgramCache]: Analyzing trace with hash -406477141, now seen corresponding path program 1 times [2024-11-22 02:18:58,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:18:58,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404305583] [2024-11-22 02:18:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:18:58,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:18:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:18:59,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:18:59,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:18:59,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404305583] [2024-11-22 02:18:59,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404305583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:18:59,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:18:59,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:18:59,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953405721] [2024-11-22 02:18:59,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:18:59,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:18:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:18:59,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:18:59,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:18:59,035 INFO L87 Difference]: Start difference. First operand 2475 states and 3772 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:18:59,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:18:59,658 INFO L93 Difference]: Finished difference Result 7744 states and 12179 transitions. [2024-11-22 02:18:59,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:18:59,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 78 [2024-11-22 02:18:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:18:59,688 INFO L225 Difference]: With dead ends: 7744 [2024-11-22 02:18:59,688 INFO L226 Difference]: Without dead ends: 5280 [2024-11-22 02:18:59,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:18:59,698 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 424 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:18:59,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 749 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:18:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2024-11-22 02:18:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 4972. [2024-11-22 02:18:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4972 states, 4208 states have (on average 1.480513307984791) internal successors, (6230), 4421 states have internal predecessors, (6230), 353 states have call successors, (353), 198 states have call predecessors, (353), 410 states have return successors, (1377), 384 states have call predecessors, (1377), 353 states have call successors, (1377) [2024-11-22 02:19:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4972 states to 4972 states and 7960 transitions. [2024-11-22 02:19:00,050 INFO L78 Accepts]: Start accepts. Automaton has 4972 states and 7960 transitions. Word has length 78 [2024-11-22 02:19:00,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:00,051 INFO L471 AbstractCegarLoop]: Abstraction has 4972 states and 7960 transitions. [2024-11-22 02:19:00,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:19:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4972 states and 7960 transitions. [2024-11-22 02:19:00,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:19:00,056 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:00,056 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] [2024-11-22 02:19:00,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:19:00,057 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:00,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:00,057 INFO L85 PathProgramCache]: Analyzing trace with hash 154222637, now seen corresponding path program 1 times [2024-11-22 02:19:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900420558] [2024-11-22 02:19:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:00,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:00,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900420558] [2024-11-22 02:19:00,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900420558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:00,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:00,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:19:00,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759554352] [2024-11-22 02:19:00,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:00,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:19:00,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:00,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:19:00,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:00,155 INFO L87 Difference]: Start difference. First operand 4972 states and 7960 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:19:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:01,140 INFO L93 Difference]: Finished difference Result 15439 states and 26205 transitions. [2024-11-22 02:19:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:19:01,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 78 [2024-11-22 02:19:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:01,221 INFO L225 Difference]: With dead ends: 15439 [2024-11-22 02:19:01,222 INFO L226 Difference]: Without dead ends: 10478 [2024-11-22 02:19:01,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:19:01,245 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 368 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:01,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1052 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:19:01,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2024-11-22 02:19:02,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 10149. [2024-11-22 02:19:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10149 states, 8443 states have (on average 1.4660665640175292) internal successors, (12378), 9110 states have internal predecessors, (12378), 653 states have call successors, (653), 386 states have call predecessors, (653), 1052 states have return successors, (4749), 716 states have call predecessors, (4749), 653 states have call successors, (4749) [2024-11-22 02:19:02,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10149 states to 10149 states and 17780 transitions. [2024-11-22 02:19:02,107 INFO L78 Accepts]: Start accepts. Automaton has 10149 states and 17780 transitions. Word has length 78 [2024-11-22 02:19:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:02,108 INFO L471 AbstractCegarLoop]: Abstraction has 10149 states and 17780 transitions. [2024-11-22 02:19:02,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-22 02:19:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 10149 states and 17780 transitions. [2024-11-22 02:19:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-22 02:19:02,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:02,120 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] [2024-11-22 02:19:02,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:19:02,121 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:02,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:02,121 INFO L85 PathProgramCache]: Analyzing trace with hash 587951723, now seen corresponding path program 1 times [2024-11-22 02:19:02,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:02,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961573463] [2024-11-22 02:19:02,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:02,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:19:02,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:02,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961573463] [2024-11-22 02:19:02,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961573463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:02,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:19:02,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:19:02,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299222640] [2024-11-22 02:19:02,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:02,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:19:02,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:02,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:19:02,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:19:02,187 INFO L87 Difference]: Start difference. First operand 10149 states and 17780 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:03,350 INFO L93 Difference]: Finished difference Result 25780 states and 45231 transitions. [2024-11-22 02:19:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:19:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (5), 1 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 78 [2024-11-22 02:19:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:03,471 INFO L225 Difference]: With dead ends: 25780 [2024-11-22 02:19:03,472 INFO L226 Difference]: Without dead ends: 15643 [2024-11-22 02:19:03,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:19:03,522 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 388 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:03,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 777 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:19:03,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15643 states. [2024-11-22 02:19:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15643 to 14854. [2024-11-22 02:19:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14854 states, 12389 states have (on average 1.4470901606263622) internal successors, (17928), 13301 states have internal predecessors, (17928), 1002 states have call successors, (1002), 584 states have call predecessors, (1002), 1462 states have return successors, (6091), 1032 states have call predecessors, (6091), 1002 states have call successors, (6091) [2024-11-22 02:19:04,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14854 states to 14854 states and 25021 transitions. [2024-11-22 02:19:04,573 INFO L78 Accepts]: Start accepts. Automaton has 14854 states and 25021 transitions. Word has length 78 [2024-11-22 02:19:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:04,574 INFO L471 AbstractCegarLoop]: Abstraction has 14854 states and 25021 transitions. [2024-11-22 02:19:04,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 02:19:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 14854 states and 25021 transitions. [2024-11-22 02:19:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 02:19:04,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:04,630 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:04,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:19:04,630 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:04,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash -713406740, now seen corresponding path program 1 times [2024-11-22 02:19:04,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:04,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374908538] [2024-11-22 02:19:04,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:04,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 02:19:04,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:04,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374908538] [2024-11-22 02:19:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374908538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:19:04,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486306051] [2024-11-22 02:19:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:04,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:19:04,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:19:04,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:19:04,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:19:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:04,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 02:19:04,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:19:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 02:19:04,964 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:19:04,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486306051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:04,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:19:04,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 02:19:04,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101016647] [2024-11-22 02:19:04,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:04,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:19:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:04,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:19:04,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:04,966 INFO L87 Difference]: Start difference. First operand 14854 states and 25021 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 02:19:06,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:06,645 INFO L93 Difference]: Finished difference Result 44179 states and 74813 transitions. [2024-11-22 02:19:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:19:06,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 128 [2024-11-22 02:19:06,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:06,820 INFO L225 Difference]: With dead ends: 44179 [2024-11-22 02:19:06,820 INFO L226 Difference]: Without dead ends: 29337 [2024-11-22 02:19:06,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:06,875 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 181 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:06,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 425 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:19:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29337 states. [2024-11-22 02:19:08,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29337 to 29139. [2024-11-22 02:19:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29139 states, 24272 states have (on average 1.4441743572841135) internal successors, (35053), 26095 states have internal predecessors, (35053), 1946 states have call successors, (1946), 1164 states have call predecessors, (1946), 2920 states have return successors, (12061), 1943 states have call predecessors, (12061), 1946 states have call successors, (12061) [2024-11-22 02:19:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29139 states to 29139 states and 49060 transitions. [2024-11-22 02:19:08,792 INFO L78 Accepts]: Start accepts. Automaton has 29139 states and 49060 transitions. Word has length 128 [2024-11-22 02:19:08,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:08,793 INFO L471 AbstractCegarLoop]: Abstraction has 29139 states and 49060 transitions. [2024-11-22 02:19:08,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 02:19:08,793 INFO L276 IsEmpty]: Start isEmpty. Operand 29139 states and 49060 transitions. [2024-11-22 02:19:08,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 02:19:08,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:08,869 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:08,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 02:19:09,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 02:19:09,070 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:09,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:09,070 INFO L85 PathProgramCache]: Analyzing trace with hash 655896588, now seen corresponding path program 1 times [2024-11-22 02:19:09,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:09,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386436772] [2024-11-22 02:19:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:09,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 02:19:09,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:09,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386436772] [2024-11-22 02:19:09,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386436772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:19:09,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041917945] [2024-11-22 02:19:09,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:09,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:19:09,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:19:09,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:19:09,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:19:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:09,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 02:19:09,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:19:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 02:19:09,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:19:09,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041917945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:09,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:19:09,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 02:19:09,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373655107] [2024-11-22 02:19:09,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:09,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:19:09,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:19:09,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:09,343 INFO L87 Difference]: Start difference. First operand 29139 states and 49060 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 02:19:12,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:12,182 INFO L93 Difference]: Finished difference Result 86664 states and 146710 transitions. [2024-11-22 02:19:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:19:12,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 128 [2024-11-22 02:19:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:12,520 INFO L225 Difference]: With dead ends: 86664 [2024-11-22 02:19:12,521 INFO L226 Difference]: Without dead ends: 57537 [2024-11-22 02:19:12,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:12,620 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 175 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:12,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 425 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:19:12,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57537 states. [2024-11-22 02:19:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57537 to 57143. [2024-11-22 02:19:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57143 states, 47538 states have (on average 1.4411418233833986) internal successors, (68509), 51183 states have internal predecessors, (68509), 3776 states have call successors, (3776), 2316 states have call predecessors, (3776), 5828 states have return successors, (23943), 3707 states have call predecessors, (23943), 3776 states have call successors, (23943) [2024-11-22 02:19:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57143 states to 57143 states and 96228 transitions. [2024-11-22 02:19:16,668 INFO L78 Accepts]: Start accepts. Automaton has 57143 states and 96228 transitions. Word has length 128 [2024-11-22 02:19:16,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:16,670 INFO L471 AbstractCegarLoop]: Abstraction has 57143 states and 96228 transitions. [2024-11-22 02:19:16,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 02:19:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 57143 states and 96228 transitions. [2024-11-22 02:19:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 02:19:16,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:16,764 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:16,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 02:19:16,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 02:19:16,965 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:16,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:16,966 INFO L85 PathProgramCache]: Analyzing trace with hash -618434260, now seen corresponding path program 1 times [2024-11-22 02:19:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:16,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663845291] [2024-11-22 02:19:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:16,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 02:19:17,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:17,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663845291] [2024-11-22 02:19:17,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663845291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:19:17,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103041411] [2024-11-22 02:19:17,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:17,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:19:17,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:19:17,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:19:17,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:19:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:17,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 02:19:17,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:19:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:19:17,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:19:17,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103041411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:17,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:19:17,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 02:19:17,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238088001] [2024-11-22 02:19:17,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:17,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:19:17,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:17,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:19:17,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:17,248 INFO L87 Difference]: Start difference. First operand 57143 states and 96228 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:19:22,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:19:22,401 INFO L93 Difference]: Finished difference Result 168956 states and 287613 transitions. [2024-11-22 02:19:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:19:22,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 128 [2024-11-22 02:19:22,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:19:23,179 INFO L225 Difference]: With dead ends: 168956 [2024-11-22 02:19:23,180 INFO L226 Difference]: Without dead ends: 111826 [2024-11-22 02:19:23,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:23,359 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 196 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:19:23,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 650 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:19:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111826 states. [2024-11-22 02:19:29,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111826 to 111826. [2024-11-22 02:19:29,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111826 states, 93026 states have (on average 1.436791864639993) internal successors, (133659), 100184 states have internal predecessors, (133659), 7215 states have call successors, (7215), 4560 states have call predecessors, (7215), 11584 states have return successors, (48634), 7209 states have call predecessors, (48634), 7215 states have call successors, (48634) [2024-11-22 02:19:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111826 states to 111826 states and 189508 transitions. [2024-11-22 02:19:30,437 INFO L78 Accepts]: Start accepts. Automaton has 111826 states and 189508 transitions. Word has length 128 [2024-11-22 02:19:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:19:30,438 INFO L471 AbstractCegarLoop]: Abstraction has 111826 states and 189508 transitions. [2024-11-22 02:19:30,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 02:19:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 111826 states and 189508 transitions. [2024-11-22 02:19:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 02:19:30,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:19:30,775 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:19:30,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:19:30,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:19:30,976 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:19:30,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:19:30,977 INFO L85 PathProgramCache]: Analyzing trace with hash -823906320, now seen corresponding path program 1 times [2024-11-22 02:19:30,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:19:30,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398460297] [2024-11-22 02:19:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:30,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:19:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-22 02:19:31,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:19:31,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398460297] [2024-11-22 02:19:31,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398460297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:19:31,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874749366] [2024-11-22 02:19:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:19:31,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:19:31,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:19:31,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:19:31,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 02:19:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:19:31,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 02:19:31,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:19:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:19:31,375 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:19:31,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874749366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:19:31,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:19:31,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 02:19:31,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825139095] [2024-11-22 02:19:31,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:19:31,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:19:31,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:19:31,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:19:31,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:19:31,377 INFO L87 Difference]: Start difference. First operand 111826 states and 189508 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)