./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 252cd4a0f8e1adbe16c63dba2a525d461eb83ddbfd931d93e6b7ef83b52daaf7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:24:30,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:24:31,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:24:31,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:24:31,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:24:31,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:24:31,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:24:31,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:24:31,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:24:31,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:24:31,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:24:31,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:24:31,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:24:31,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:24:31,053 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:24:31,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:24:31,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:24:31,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:24:31,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:24:31,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:24:31,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:24:31,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:24:31,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:24:31,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:24:31,057 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:24:31,057 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:24:31,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:24:31,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:24:31,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:24:31,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:24:31,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:24:31,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:24:31,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:24:31,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:24:31,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:24:31,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:24:31,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:24:31,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:24:31,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:24:31,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:24:31,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:24:31,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:24:31,065 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 252cd4a0f8e1adbe16c63dba2a525d461eb83ddbfd931d93e6b7ef83b52daaf7 [2024-10-11 03:24:31,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:24:31,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:24:31,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:24:31,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:24:31,366 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:24:31,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2024-10-11 03:24:32,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:24:33,098 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:24:33,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2024-10-11 03:24:33,109 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8cfa685db/6c20d7dea1ab4743b40c5820b83ddf6c/FLAGb2b496534 [2024-10-11 03:24:33,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8cfa685db/6c20d7dea1ab4743b40c5820b83ddf6c [2024-10-11 03:24:33,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:24:33,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:24:33,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:24:33,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:24:33,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:24:33,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eae25d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33, skipping insertion in model container [2024-10-11 03:24:33,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:24:33,394 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c[20056,20069] [2024-10-11 03:24:33,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:24:33,409 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:24:33,482 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.BOUNDED-14.pals.c[20056,20069] [2024-10-11 03:24:33,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:24:33,501 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:24:33,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33 WrapperNode [2024-10-11 03:24:33,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:24:33,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:24:33,504 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:24:33,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:24:33,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,564 INFO L138 Inliner]: procedures = 26, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 461 [2024-10-11 03:24:33,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:24:33,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:24:33,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:24:33,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:24:33,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,611 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]. [2024-10-11 03:24:33,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:24:33,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:24:33,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:24:33,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:24:33,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (1/1) ... [2024-10-11 03:24:33,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:24:33,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:24:33,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:24:33,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:24:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:24:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:24:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:24:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:24:33,841 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:24:33,843 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:24:34,399 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-11 03:24:34,400 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:24:34,448 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:24:34,449 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 03:24:34,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:24:34 BoogieIcfgContainer [2024-10-11 03:24:34,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:24:34,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:24:34,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:24:34,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:24:34,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:24:33" (1/3) ... [2024-10-11 03:24:34,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6972ab64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:24:34, skipping insertion in model container [2024-10-11 03:24:34,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:24:33" (2/3) ... [2024-10-11 03:24:34,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6972ab64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:24:34, skipping insertion in model container [2024-10-11 03:24:34,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:24:34" (3/3) ... [2024-10-11 03:24:34,457 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c [2024-10-11 03:24:34,472 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:24:34,473 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:24:34,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:24:34,533 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;@19ce7fe3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:24:34,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:24:34,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.8224299065420562) internal successors, (195), 108 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 03:24:34,548 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:34,548 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] [2024-10-11 03:24:34,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:34,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash 61708070, now seen corresponding path program 1 times [2024-10-11 03:24:34,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:34,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555273582] [2024-10-11 03:24:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:34,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:34,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:34,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555273582] [2024-10-11 03:24:34,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555273582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:34,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 03:24:34,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561594232] [2024-10-11 03:24:34,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:34,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 03:24:34,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:34,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 03:24:34,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:24:34,795 INFO L87 Difference]: Start difference. First operand has 109 states, 107 states have (on average 1.8224299065420562) internal successors, (195), 108 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:34,828 INFO L93 Difference]: Finished difference Result 165 states and 286 transitions. [2024-10-11 03:24:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 03:24:34,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-10-11 03:24:34,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:34,845 INFO L225 Difference]: With dead ends: 165 [2024-10-11 03:24:34,846 INFO L226 Difference]: Without dead ends: 107 [2024-10-11 03:24:34,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 03:24:34,855 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:34,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-11 03:24:34,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-10-11 03:24:34,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.7924528301886793) internal successors, (190), 106 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 190 transitions. [2024-10-11 03:24:34,891 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 190 transitions. Word has length 24 [2024-10-11 03:24:34,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:34,892 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 190 transitions. [2024-10-11 03:24:34,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:34,892 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 190 transitions. [2024-10-11 03:24:34,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 03:24:34,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:34,893 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] [2024-10-11 03:24:34,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:24:34,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:34,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash 484409896, now seen corresponding path program 1 times [2024-10-11 03:24:34,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:34,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935603212] [2024-10-11 03:24:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:35,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935603212] [2024-10-11 03:24:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935603212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:35,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:35,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:24:35,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956374196] [2024-10-11 03:24:35,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:35,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:24:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:35,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:24:35,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:24:35,060 INFO L87 Difference]: Start difference. First operand 107 states and 190 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:35,173 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2024-10-11 03:24:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:24:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-10-11 03:24:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:35,176 INFO L225 Difference]: With dead ends: 163 [2024-10-11 03:24:35,177 INFO L226 Difference]: Without dead ends: 107 [2024-10-11 03:24:35,178 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 [2024-10-11 03:24:35,178 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:35,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:24:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-11 03:24:35,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-10-11 03:24:35,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.320754716981132) internal successors, (140), 106 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2024-10-11 03:24:35,187 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 24 [2024-10-11 03:24:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:35,187 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2024-10-11 03:24:35,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2024-10-11 03:24:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 03:24:35,189 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:35,189 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] [2024-10-11 03:24:35,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:24:35,190 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:35,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:35,190 INFO L85 PathProgramCache]: Analyzing trace with hash 456528988, now seen corresponding path program 1 times [2024-10-11 03:24:35,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:35,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597376051] [2024-10-11 03:24:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:35,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:35,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597376051] [2024-10-11 03:24:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597376051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:35,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:35,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:24:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848323967] [2024-10-11 03:24:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:35,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:24:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:24:35,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:24:35,603 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:36,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:36,024 INFO L93 Difference]: Finished difference Result 849 states and 1344 transitions. [2024-10-11 03:24:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:24:36,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-11 03:24:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:36,031 INFO L225 Difference]: With dead ends: 849 [2024-10-11 03:24:36,032 INFO L226 Difference]: Without dead ends: 796 [2024-10-11 03:24:36,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:24:36,035 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1483 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:36,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 2989 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:24:36,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-10-11 03:24:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 158. [2024-10-11 03:24:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.4203821656050954) internal successors, (223), 157 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 223 transitions. [2024-10-11 03:24:36,073 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 223 transitions. Word has length 73 [2024-10-11 03:24:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:36,074 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 223 transitions. [2024-10-11 03:24:36,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:36,074 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 223 transitions. [2024-10-11 03:24:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 03:24:36,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:36,076 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] [2024-10-11 03:24:36,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:24:36,076 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:36,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:36,078 INFO L85 PathProgramCache]: Analyzing trace with hash -122926772, now seen corresponding path program 1 times [2024-10-11 03:24:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:36,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234806835] [2024-10-11 03:24:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:36,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:36,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:36,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234806835] [2024-10-11 03:24:36,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234806835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:36,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:36,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:36,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347755403] [2024-10-11 03:24:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:36,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:36,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:36,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:36,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:36,231 INFO L87 Difference]: Start difference. First operand 158 states and 223 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:36,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:36,260 INFO L93 Difference]: Finished difference Result 355 states and 542 transitions. [2024-10-11 03:24:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:36,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-11 03:24:36,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:36,265 INFO L225 Difference]: With dead ends: 355 [2024-10-11 03:24:36,265 INFO L226 Difference]: Without dead ends: 251 [2024-10-11 03:24:36,266 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 [2024-10-11 03:24:36,266 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 58 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:36,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 215 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-11 03:24:36,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2024-10-11 03:24:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.4879032258064515) internal successors, (369), 248 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:36,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 369 transitions. [2024-10-11 03:24:36,292 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 369 transitions. Word has length 75 [2024-10-11 03:24:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:36,293 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 369 transitions. [2024-10-11 03:24:36,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 369 transitions. [2024-10-11 03:24:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 03:24:36,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:36,295 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] [2024-10-11 03:24:36,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:24:36,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:36,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:36,299 INFO L85 PathProgramCache]: Analyzing trace with hash -120781820, now seen corresponding path program 1 times [2024-10-11 03:24:36,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:36,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774843197] [2024-10-11 03:24:36,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:36,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:36,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:36,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774843197] [2024-10-11 03:24:36,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774843197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:36,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:36,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:24:36,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597260644] [2024-10-11 03:24:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:36,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:24:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:36,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:24:36,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:24:36,843 INFO L87 Difference]: Start difference. First operand 249 states and 369 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:37,384 INFO L93 Difference]: Finished difference Result 446 states and 685 transitions. [2024-10-11 03:24:37,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:24:37,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-11 03:24:37,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:37,389 INFO L225 Difference]: With dead ends: 446 [2024-10-11 03:24:37,393 INFO L226 Difference]: Without dead ends: 251 [2024-10-11 03:24:37,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-11 03:24:37,395 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 119 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:37,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 709 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:24:37,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-11 03:24:37,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2024-10-11 03:24:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.4798387096774193) internal successors, (367), 248 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 367 transitions. [2024-10-11 03:24:37,414 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 367 transitions. Word has length 75 [2024-10-11 03:24:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:37,415 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 367 transitions. [2024-10-11 03:24:37,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 367 transitions. [2024-10-11 03:24:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:24:37,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:37,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:37,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:24:37,421 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:37,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:37,421 INFO L85 PathProgramCache]: Analyzing trace with hash 536658470, now seen corresponding path program 1 times [2024-10-11 03:24:37,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:37,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752527947] [2024-10-11 03:24:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:37,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:37,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:37,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752527947] [2024-10-11 03:24:37,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752527947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:37,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:37,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:24:37,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045496096] [2024-10-11 03:24:37,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:37,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:24:37,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:37,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:24:37,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:24:37,623 INFO L87 Difference]: Start difference. First operand 249 states and 367 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:37,665 INFO L93 Difference]: Finished difference Result 255 states and 374 transitions. [2024-10-11 03:24:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:24:37,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-11 03:24:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:37,667 INFO L225 Difference]: With dead ends: 255 [2024-10-11 03:24:37,667 INFO L226 Difference]: Without dead ends: 253 [2024-10-11 03:24:37,667 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 [2024-10-11 03:24:37,668 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:37,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 400 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:37,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-10-11 03:24:37,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2024-10-11 03:24:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 252 states have (on average 1.4682539682539681) internal successors, (370), 252 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 370 transitions. [2024-10-11 03:24:37,676 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 370 transitions. Word has length 76 [2024-10-11 03:24:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:37,676 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 370 transitions. [2024-10-11 03:24:37,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,677 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 370 transitions. [2024-10-11 03:24:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:37,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:37,678 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] [2024-10-11 03:24:37,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:24:37,678 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:37,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:37,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1846932892, now seen corresponding path program 1 times [2024-10-11 03:24:37,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:37,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073734841] [2024-10-11 03:24:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:37,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:37,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:37,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073734841] [2024-10-11 03:24:37,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073734841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:37,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:37,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:37,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665408042] [2024-10-11 03:24:37,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:37,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:37,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:37,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:37,744 INFO L87 Difference]: Start difference. First operand 253 states and 370 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:37,767 INFO L93 Difference]: Finished difference Result 463 states and 703 transitions. [2024-10-11 03:24:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:37,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:37,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:37,769 INFO L225 Difference]: With dead ends: 463 [2024-10-11 03:24:37,769 INFO L226 Difference]: Without dead ends: 355 [2024-10-11 03:24:37,770 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 [2024-10-11 03:24:37,771 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 76 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:37,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-10-11 03:24:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 353. [2024-10-11 03:24:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4971590909090908) internal successors, (527), 352 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 527 transitions. [2024-10-11 03:24:37,779 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 527 transitions. Word has length 77 [2024-10-11 03:24:37,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:37,779 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 527 transitions. [2024-10-11 03:24:37,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 527 transitions. [2024-10-11 03:24:37,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:37,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:37,780 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] [2024-10-11 03:24:37,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:24:37,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:37,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:37,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1501935516, now seen corresponding path program 1 times [2024-10-11 03:24:37,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:37,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994234759] [2024-10-11 03:24:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:37,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:37,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:37,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994234759] [2024-10-11 03:24:37,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994234759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:37,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:37,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:37,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009952762] [2024-10-11 03:24:37,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:37,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:37,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:37,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:37,833 INFO L87 Difference]: Start difference. First operand 353 states and 527 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:37,862 INFO L93 Difference]: Finished difference Result 923 states and 1427 transitions. [2024-10-11 03:24:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:37,867 INFO L225 Difference]: With dead ends: 923 [2024-10-11 03:24:37,867 INFO L226 Difference]: Without dead ends: 626 [2024-10-11 03:24:37,867 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 [2024-10-11 03:24:37,868 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:37,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-10-11 03:24:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 624. [2024-10-11 03:24:37,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 623 states have (on average 1.5232744783306582) internal successors, (949), 623 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 949 transitions. [2024-10-11 03:24:37,893 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 949 transitions. Word has length 77 [2024-10-11 03:24:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:37,894 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 949 transitions. [2024-10-11 03:24:37,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 949 transitions. [2024-10-11 03:24:37,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:37,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:37,897 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] [2024-10-11 03:24:37,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:24:37,898 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:37,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:37,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1770518684, now seen corresponding path program 1 times [2024-10-11 03:24:37,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:37,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210390149] [2024-10-11 03:24:37,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:37,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:37,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:37,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210390149] [2024-10-11 03:24:37,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210390149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:37,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:37,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:37,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519491632] [2024-10-11 03:24:37,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:37,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:37,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:37,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:37,967 INFO L87 Difference]: Start difference. First operand 624 states and 949 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:38,003 INFO L93 Difference]: Finished difference Result 1712 states and 2651 transitions. [2024-10-11 03:24:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:38,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:38,008 INFO L225 Difference]: With dead ends: 1712 [2024-10-11 03:24:38,008 INFO L226 Difference]: Without dead ends: 1144 [2024-10-11 03:24:38,009 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 [2024-10-11 03:24:38,010 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:38,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 295 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2024-10-11 03:24:38,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1142. [2024-10-11 03:24:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.5293602103418054) internal successors, (1745), 1141 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1745 transitions. [2024-10-11 03:24:38,040 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1745 transitions. Word has length 77 [2024-10-11 03:24:38,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:38,040 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1745 transitions. [2024-10-11 03:24:38,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1745 transitions. [2024-10-11 03:24:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:38,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:38,041 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:38,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:24:38,042 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:38,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:38,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1938736484, now seen corresponding path program 1 times [2024-10-11 03:24:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:38,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589572516] [2024-10-11 03:24:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:38,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:38,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589572516] [2024-10-11 03:24:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589572516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:38,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:38,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306172703] [2024-10-11 03:24:38,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:38,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:38,162 INFO L87 Difference]: Start difference. First operand 1142 states and 1745 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:38,260 INFO L93 Difference]: Finished difference Result 3218 states and 4955 transitions. [2024-10-11 03:24:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:38,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:38,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:38,274 INFO L225 Difference]: With dead ends: 3218 [2024-10-11 03:24:38,277 INFO L226 Difference]: Without dead ends: 2132 [2024-10-11 03:24:38,278 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 [2024-10-11 03:24:38,279 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 66 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:38,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2024-10-11 03:24:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2130. [2024-10-11 03:24:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.5223109441052136) internal successors, (3241), 2129 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3241 transitions. [2024-10-11 03:24:38,371 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3241 transitions. Word has length 77 [2024-10-11 03:24:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:38,372 INFO L471 AbstractCegarLoop]: Abstraction has 2130 states and 3241 transitions. [2024-10-11 03:24:38,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3241 transitions. [2024-10-11 03:24:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:38,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:38,376 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] [2024-10-11 03:24:38,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:24:38,376 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:38,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1467497372, now seen corresponding path program 1 times [2024-10-11 03:24:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037086504] [2024-10-11 03:24:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:38,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:38,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:38,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037086504] [2024-10-11 03:24:38,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037086504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:38,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:38,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:38,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853417830] [2024-10-11 03:24:38,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:38,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:38,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:38,492 INFO L87 Difference]: Start difference. First operand 2130 states and 3241 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:38,577 INFO L93 Difference]: Finished difference Result 6086 states and 9275 transitions. [2024-10-11 03:24:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:38,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:38,591 INFO L225 Difference]: With dead ends: 6086 [2024-10-11 03:24:38,591 INFO L226 Difference]: Without dead ends: 4012 [2024-10-11 03:24:38,595 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 [2024-10-11 03:24:38,595 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 64 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:38,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:38,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2024-10-11 03:24:38,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 4010. [2024-10-11 03:24:38,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4009 states have (on average 1.5068595659765527) internal successors, (6041), 4009 states have internal predecessors, (6041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 6041 transitions. [2024-10-11 03:24:38,695 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 6041 transitions. Word has length 77 [2024-10-11 03:24:38,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:38,695 INFO L471 AbstractCegarLoop]: Abstraction has 4010 states and 6041 transitions. [2024-10-11 03:24:38,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 6041 transitions. [2024-10-11 03:24:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:38,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:38,696 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] [2024-10-11 03:24:38,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:24:38,696 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:38,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:38,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1730574748, now seen corresponding path program 1 times [2024-10-11 03:24:38,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:38,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143651167] [2024-10-11 03:24:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:38,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:38,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143651167] [2024-10-11 03:24:38,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143651167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:38,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:38,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:38,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674316253] [2024-10-11 03:24:38,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:38,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:38,766 INFO L87 Difference]: Start difference. First operand 4010 states and 6041 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:38,891 INFO L93 Difference]: Finished difference Result 11534 states and 17339 transitions. [2024-10-11 03:24:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:38,918 INFO L225 Difference]: With dead ends: 11534 [2024-10-11 03:24:38,919 INFO L226 Difference]: Without dead ends: 7580 [2024-10-11 03:24:38,926 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 [2024-10-11 03:24:38,927 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 68 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:38,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2024-10-11 03:24:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7578. [2024-10-11 03:24:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7578 states, 7577 states have (on average 1.4856803484228587) internal successors, (11257), 7577 states have internal predecessors, (11257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:39,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 11257 transitions. [2024-10-11 03:24:39,260 INFO L78 Accepts]: Start accepts. Automaton has 7578 states and 11257 transitions. Word has length 77 [2024-10-11 03:24:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:39,261 INFO L471 AbstractCegarLoop]: Abstraction has 7578 states and 11257 transitions. [2024-10-11 03:24:39,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:39,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7578 states and 11257 transitions. [2024-10-11 03:24:39,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:24:39,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:39,263 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] [2024-10-11 03:24:39,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:24:39,263 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:39,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:39,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1091548828, now seen corresponding path program 1 times [2024-10-11 03:24:39,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:39,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107664585] [2024-10-11 03:24:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:39,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:24:39,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:39,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107664585] [2024-10-11 03:24:39,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107664585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:39,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:39,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:24:39,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617622586] [2024-10-11 03:24:39,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:39,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:24:39,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:39,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:24:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:24:39,327 INFO L87 Difference]: Start difference. First operand 7578 states and 11257 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:39,672 INFO L93 Difference]: Finished difference Result 21854 states and 32315 transitions. [2024-10-11 03:24:39,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:24:39,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-11 03:24:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:39,714 INFO L225 Difference]: With dead ends: 21854 [2024-10-11 03:24:39,715 INFO L226 Difference]: Without dead ends: 14332 [2024-10-11 03:24:39,725 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 [2024-10-11 03:24:39,726 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 74 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:39,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 299 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:24:39,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2024-10-11 03:24:40,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 14330. [2024-10-11 03:24:40,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14330 states, 14329 states have (on average 1.4600460604368763) internal successors, (20921), 14329 states have internal predecessors, (20921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14330 states to 14330 states and 20921 transitions. [2024-10-11 03:24:40,442 INFO L78 Accepts]: Start accepts. Automaton has 14330 states and 20921 transitions. Word has length 77 [2024-10-11 03:24:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:40,442 INFO L471 AbstractCegarLoop]: Abstraction has 14330 states and 20921 transitions. [2024-10-11 03:24:40,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14330 states and 20921 transitions. [2024-10-11 03:24:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:24:40,455 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:40,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:40,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:24:40,456 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1778428204, now seen corresponding path program 1 times [2024-10-11 03:24:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915715192] [2024-10-11 03:24:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:24:40,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:40,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915715192] [2024-10-11 03:24:40,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915715192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:40,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:40,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:24:40,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289389498] [2024-10-11 03:24:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:40,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:24:40,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:24:40,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:24:40,825 INFO L87 Difference]: Start difference. First operand 14330 states and 20921 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:43,028 INFO L93 Difference]: Finished difference Result 112842 states and 164865 transitions. [2024-10-11 03:24:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:24:43,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:24:43,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:43,325 INFO L225 Difference]: With dead ends: 112842 [2024-10-11 03:24:43,325 INFO L226 Difference]: Without dead ends: 102856 [2024-10-11 03:24:43,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:24:43,390 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1217 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:43,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1440 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:24:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102856 states. [2024-10-11 03:24:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102856 to 26490. [2024-10-11 03:24:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26490 states, 26489 states have (on average 1.454226282607875) internal successors, (38521), 26489 states have internal predecessors, (38521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26490 states to 26490 states and 38521 transitions. [2024-10-11 03:24:45,286 INFO L78 Accepts]: Start accepts. Automaton has 26490 states and 38521 transitions. Word has length 99 [2024-10-11 03:24:45,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:45,286 INFO L471 AbstractCegarLoop]: Abstraction has 26490 states and 38521 transitions. [2024-10-11 03:24:45,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:45,287 INFO L276 IsEmpty]: Start isEmpty. Operand 26490 states and 38521 transitions. [2024-10-11 03:24:45,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:24:45,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:45,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:45,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:24:45,291 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:45,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1433430828, now seen corresponding path program 1 times [2024-10-11 03:24:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786790500] [2024-10-11 03:24:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:45,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:24:45,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:45,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786790500] [2024-10-11 03:24:45,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786790500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:45,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:45,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:24:45,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340716920] [2024-10-11 03:24:45,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:45,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:24:45,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:45,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:24:45,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:24:45,489 INFO L87 Difference]: Start difference. First operand 26490 states and 38521 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:47,823 INFO L93 Difference]: Finished difference Result 127114 states and 185601 transitions. [2024-10-11 03:24:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:24:47,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:24:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:48,058 INFO L225 Difference]: With dead ends: 127114 [2024-10-11 03:24:48,059 INFO L226 Difference]: Without dead ends: 112840 [2024-10-11 03:24:48,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:24:48,116 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 1280 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:48,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1525 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:24:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112840 states. [2024-10-11 03:24:50,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112840 to 45754. [2024-10-11 03:24:50,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45754 states, 45753 states have (on average 1.4504185517889536) internal successors, (66361), 45753 states have internal predecessors, (66361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45754 states to 45754 states and 66361 transitions. [2024-10-11 03:24:50,450 INFO L78 Accepts]: Start accepts. Automaton has 45754 states and 66361 transitions. Word has length 99 [2024-10-11 03:24:50,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:50,451 INFO L471 AbstractCegarLoop]: Abstraction has 45754 states and 66361 transitions. [2024-10-11 03:24:50,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 45754 states and 66361 transitions. [2024-10-11 03:24:50,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:24:50,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:50,457 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:50,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:24:50,458 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:50,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:50,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1702013996, now seen corresponding path program 1 times [2024-10-11 03:24:50,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:50,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661458899] [2024-10-11 03:24:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:50,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:50,646 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:24:50,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:50,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661458899] [2024-10-11 03:24:50,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661458899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:50,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:50,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:24:50,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012333965] [2024-10-11 03:24:50,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:50,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:24:50,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:50,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:24:50,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:24:50,648 INFO L87 Difference]: Start difference. First operand 45754 states and 66361 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:53,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:24:53,522 INFO L93 Difference]: Finished difference Result 141386 states and 206273 transitions. [2024-10-11 03:24:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:24:53,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:24:53,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:24:54,013 INFO L225 Difference]: With dead ends: 141386 [2024-10-11 03:24:54,014 INFO L226 Difference]: Without dead ends: 127112 [2024-10-11 03:24:54,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:24:54,106 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1377 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:24:54,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1396 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:24:54,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127112 states. [2024-10-11 03:24:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127112 to 60026. [2024-10-11 03:24:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60026 states, 60025 states have (on average 1.4499458558933778) internal successors, (87033), 60025 states have internal predecessors, (87033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:56,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60026 states to 60026 states and 87033 transitions. [2024-10-11 03:24:56,778 INFO L78 Accepts]: Start accepts. Automaton has 60026 states and 87033 transitions. Word has length 99 [2024-10-11 03:24:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:24:56,778 INFO L471 AbstractCegarLoop]: Abstraction has 60026 states and 87033 transitions. [2024-10-11 03:24:56,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:24:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 60026 states and 87033 transitions. [2024-10-11 03:24:56,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:24:56,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:24:56,787 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:24:56,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:24:56,788 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:24:56,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:24:56,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2007241172, now seen corresponding path program 1 times [2024-10-11 03:24:56,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:24:56,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032869009] [2024-10-11 03:24:56,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:24:56,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:24:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:24:57,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:24:57,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:24:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032869009] [2024-10-11 03:24:57,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032869009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:24:57,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:24:57,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:24:57,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027494970] [2024-10-11 03:24:57,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:24:57,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:24:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:24:57,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:24:57,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:24:57,032 INFO L87 Difference]: Start difference. First operand 60026 states and 87033 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:00,335 INFO L93 Difference]: Finished difference Result 155658 states and 226945 transitions. [2024-10-11 03:25:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:25:00,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:25:00,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:00,617 INFO L225 Difference]: With dead ends: 155658 [2024-10-11 03:25:00,617 INFO L226 Difference]: Without dead ends: 141384 [2024-10-11 03:25:00,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:25:00,681 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1460 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:00,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1426 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:25:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141384 states. [2024-10-11 03:25:03,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141384 to 74298. [2024-10-11 03:25:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74298 states, 74297 states have (on average 1.4496547639877788) internal successors, (107705), 74297 states have internal predecessors, (107705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:04,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74298 states to 74298 states and 107705 transitions. [2024-10-11 03:25:04,117 INFO L78 Accepts]: Start accepts. Automaton has 74298 states and 107705 transitions. Word has length 99 [2024-10-11 03:25:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:04,117 INFO L471 AbstractCegarLoop]: Abstraction has 74298 states and 107705 transitions. [2024-10-11 03:25:04,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:04,118 INFO L276 IsEmpty]: Start isEmpty. Operand 74298 states and 107705 transitions. [2024-10-11 03:25:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:25:04,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:04,131 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:04,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:25:04,131 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:04,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:04,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1398992684, now seen corresponding path program 1 times [2024-10-11 03:25:04,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:04,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649342776] [2024-10-11 03:25:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:04,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 03:25:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649342776] [2024-10-11 03:25:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649342776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:04,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:04,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:25:04,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488879354] [2024-10-11 03:25:04,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:04,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:25:04,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:04,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:25:04,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:25:04,388 INFO L87 Difference]: Start difference. First operand 74298 states and 107705 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:08,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:08,672 INFO L93 Difference]: Finished difference Result 169930 states and 247617 transitions. [2024-10-11 03:25:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:25:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:25:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:08,958 INFO L225 Difference]: With dead ends: 169930 [2024-10-11 03:25:08,958 INFO L226 Difference]: Without dead ends: 155656 [2024-10-11 03:25:08,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:25:09,000 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1331 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:09,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1457 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:25:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155656 states. [2024-10-11 03:25:12,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155656 to 88570. [2024-10-11 03:25:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88570 states, 88569 states have (on average 1.449457485124592) internal successors, (128377), 88569 states have internal predecessors, (128377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88570 states to 88570 states and 128377 transitions. [2024-10-11 03:25:12,853 INFO L78 Accepts]: Start accepts. Automaton has 88570 states and 128377 transitions. Word has length 99 [2024-10-11 03:25:12,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:12,855 INFO L471 AbstractCegarLoop]: Abstraction has 88570 states and 128377 transitions. [2024-10-11 03:25:12,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 88570 states and 128377 transitions. [2024-10-11 03:25:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:25:12,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:12,870 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:12,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:25:12,871 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:12,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1662070060, now seen corresponding path program 1 times [2024-10-11 03:25:12,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:12,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853933211] [2024-10-11 03:25:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:12,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 03:25:13,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:13,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853933211] [2024-10-11 03:25:13,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853933211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:13,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:13,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:25:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351392928] [2024-10-11 03:25:13,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:13,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:25:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:13,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:25:13,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:25:13,116 INFO L87 Difference]: Start difference. First operand 88570 states and 128377 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:17,734 INFO L93 Difference]: Finished difference Result 184202 states and 268289 transitions. [2024-10-11 03:25:17,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:25:17,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:25:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:18,076 INFO L225 Difference]: With dead ends: 184202 [2024-10-11 03:25:18,077 INFO L226 Difference]: Without dead ends: 169928 [2024-10-11 03:25:18,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:25:18,136 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1211 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:18,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 1643 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:25:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169928 states. [2024-10-11 03:25:21,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169928 to 102842. [2024-10-11 03:25:21,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102842 states, 102841 states have (on average 1.4493149619315253) internal successors, (149049), 102841 states have internal predecessors, (149049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:22,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102842 states to 102842 states and 149049 transitions. [2024-10-11 03:25:22,442 INFO L78 Accepts]: Start accepts. Automaton has 102842 states and 149049 transitions. Word has length 99 [2024-10-11 03:25:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:22,443 INFO L471 AbstractCegarLoop]: Abstraction has 102842 states and 149049 transitions. [2024-10-11 03:25:22,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:22,443 INFO L276 IsEmpty]: Start isEmpty. Operand 102842 states and 149049 transitions. [2024-10-11 03:25:22,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 03:25:22,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:22,449 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:22,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:25:22,450 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:22,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:22,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1023044140, now seen corresponding path program 1 times [2024-10-11 03:25:22,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382544016] [2024-10-11 03:25:22,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:22,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:25:22,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:22,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382544016] [2024-10-11 03:25:22,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382544016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 03:25:22,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309211614] [2024-10-11 03:25:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:22,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:25:22,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:25:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:25:22,579 INFO L87 Difference]: Start difference. First operand 102842 states and 149049 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:27,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:27,890 INFO L93 Difference]: Finished difference Result 198474 states and 288961 transitions. [2024-10-11 03:25:27,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:25:27,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 03:25:27,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:28,139 INFO L225 Difference]: With dead ends: 198474 [2024-10-11 03:25:28,139 INFO L226 Difference]: Without dead ends: 184200 [2024-10-11 03:25:28,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:25:28,187 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 1219 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:28,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1716 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:25:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184200 states. [2024-10-11 03:25:32,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184200 to 117114. [2024-10-11 03:25:32,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117114 states, 117113 states have (on average 1.44920717597534) internal successors, (169721), 117113 states have internal predecessors, (169721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117114 states to 117114 states and 169721 transitions. [2024-10-11 03:25:33,196 INFO L78 Accepts]: Start accepts. Automaton has 117114 states and 169721 transitions. Word has length 99 [2024-10-11 03:25:33,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:33,203 INFO L471 AbstractCegarLoop]: Abstraction has 117114 states and 169721 transitions. [2024-10-11 03:25:33,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 117114 states and 169721 transitions. [2024-10-11 03:25:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 03:25:33,219 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:33,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:33,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:25:33,220 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:33,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:33,221 INFO L85 PathProgramCache]: Analyzing trace with hash -881999035, now seen corresponding path program 1 times [2024-10-11 03:25:33,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:33,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423822390] [2024-10-11 03:25:33,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:33,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:33,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:33,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423822390] [2024-10-11 03:25:33,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423822390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:33,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:33,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:33,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034517611] [2024-10-11 03:25:33,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:33,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:33,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:33,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:33,734 INFO L87 Difference]: Start difference. First operand 117114 states and 169721 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:25:37,573 INFO L93 Difference]: Finished difference Result 234174 states and 339387 transitions. [2024-10-11 03:25:37,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:25:37,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-10-11 03:25:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:25:37,795 INFO L225 Difference]: With dead ends: 234174 [2024-10-11 03:25:37,795 INFO L226 Difference]: Without dead ends: 117116 [2024-10-11 03:25:37,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:37,843 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 61 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:25:37,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 314 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:25:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117116 states. [2024-10-11 03:25:42,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117116 to 117114. [2024-10-11 03:25:42,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117114 states, 117113 states have (on average 1.4358183976159777) internal successors, (168153), 117113 states have internal predecessors, (168153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117114 states to 117114 states and 168153 transitions. [2024-10-11 03:25:42,771 INFO L78 Accepts]: Start accepts. Automaton has 117114 states and 168153 transitions. Word has length 100 [2024-10-11 03:25:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:25:42,772 INFO L471 AbstractCegarLoop]: Abstraction has 117114 states and 168153 transitions. [2024-10-11 03:25:42,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:25:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 117114 states and 168153 transitions. [2024-10-11 03:25:42,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 03:25:42,776 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:25:42,776 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:25:42,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:25:42,777 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:25:42,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:25:42,777 INFO L85 PathProgramCache]: Analyzing trace with hash -356382852, now seen corresponding path program 1 times [2024-10-11 03:25:42,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:25:42,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830367337] [2024-10-11 03:25:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:25:42,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:25:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:25:42,875 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:25:42,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:25:42,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830367337] [2024-10-11 03:25:42,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830367337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:25:42,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:25:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:25:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36226344] [2024-10-11 03:25:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:25:42,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:25:42,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:25:42,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:25:42,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:25:42,877 INFO L87 Difference]: Start difference. First operand 117114 states and 168153 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)