./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-back-serstep.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 61ff0c478cd6e8d41d810ae4d1198eff2eb63a9a5783db9909f1ae30395ad01a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 05:15:21,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 05:15:21,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 05:15:21,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 05:15:21,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 05:15:21,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 05:15:21,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 05:15:21,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 05:15:21,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 05:15:21,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 05:15:21,741 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 05:15:21,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 05:15:21,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 05:15:21,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 05:15:21,744 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 05:15:21,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 05:15:21,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 05:15:21,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 05:15:21,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 05:15:21,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 05:15:21,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 05:15:21,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 05:15:21,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 05:15:21,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 05:15:21,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 05:15:21,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 05:15:21,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 05:15:21,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 05:15:21,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 05:15:21,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:15:21,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 05:15:21,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 05:15:21,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 05:15:21,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 05:15:21,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 05:15:21,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 05:15:21,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 05:15:21,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 05:15:21,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 05:15:21,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61ff0c478cd6e8d41d810ae4d1198eff2eb63a9a5783db9909f1ae30395ad01a [2024-10-11 05:15:22,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 05:15:22,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 05:15:22,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 05:15:22,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 05:15:22,054 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 05:15:22,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-back-serstep.c [2024-10-11 05:15:23,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 05:15:23,826 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 05:15:23,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-back-serstep.c [2024-10-11 05:15:23,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6236ecbb7/7604c11e47fc4fd8b856fef3d60cb90b/FLAGb00d67cd4 [2024-10-11 05:15:24,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6236ecbb7/7604c11e47fc4fd8b856fef3d60cb90b [2024-10-11 05:15:24,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 05:15:24,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 05:15:24,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 05:15:24,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 05:15:24,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 05:15:24,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:24,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7676e4c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24, skipping insertion in model container [2024-10-11 05:15:24,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:24,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 05:15:24,465 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/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-back-serstep.c[1174,1187] [2024-10-11 05:15:24,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:15:24,669 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 05:15:24,688 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/hardware-verification-bv/btor2c-lazyMod.adding.6.prop1-back-serstep.c[1174,1187] [2024-10-11 05:15:24,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 05:15:24,791 INFO L204 MainTranslator]: Completed translation [2024-10-11 05:15:24,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24 WrapperNode [2024-10-11 05:15:24,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 05:15:24,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 05:15:24,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 05:15:24,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 05:15:24,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:24,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,115 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1949 [2024-10-11 05:15:25,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 05:15:25,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 05:15:25,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 05:15:25,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 05:15:25,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,260 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 05:15:25,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 05:15:25,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 05:15:25,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 05:15:25,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 05:15:25,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (1/1) ... [2024-10-11 05:15:25,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 05:15:25,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:25,463 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 05:15:25,467 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 05:15:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 05:15:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 05:15:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 05:15:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 05:15:25,731 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 05:15:25,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 05:15:27,887 INFO L? ?]: Removed 993 outVars from TransFormulas that were not future-live. [2024-10-11 05:15:27,888 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 05:15:27,948 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 05:15:27,948 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 05:15:27,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:15:27 BoogieIcfgContainer [2024-10-11 05:15:27,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 05:15:27,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 05:15:27,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 05:15:27,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 05:15:27,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:15:24" (1/3) ... [2024-10-11 05:15:27,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536897d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:15:27, skipping insertion in model container [2024-10-11 05:15:27,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:15:24" (2/3) ... [2024-10-11 05:15:27,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536897d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:15:27, skipping insertion in model container [2024-10-11 05:15:27,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:15:27" (3/3) ... [2024-10-11 05:15:27,964 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.6.prop1-back-serstep.c [2024-10-11 05:15:27,985 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 05:15:27,986 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 05:15:28,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 05:15:28,088 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;@1d1db250, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 05:15:28,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 05:15:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 683 states, 681 states have (on average 1.5036710719530102) internal successors, (1024), 682 states have internal predecessors, (1024), 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 05:15:28,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 05:15:28,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:28,116 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:15:28,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:28,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash -68488914, now seen corresponding path program 1 times [2024-10-11 05:15:28,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957378511] [2024-10-11 05:15:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:28,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:29,018 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 05:15:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:29,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957378511] [2024-10-11 05:15:29,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957378511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:29,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:29,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:29,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508258916] [2024-10-11 05:15:29,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:29,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:29,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:29,060 INFO L87 Difference]: Start difference. First operand has 683 states, 681 states have (on average 1.5036710719530102) internal successors, (1024), 682 states have internal predecessors, (1024), 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 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 05:15:29,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:29,177 INFO L93 Difference]: Finished difference Result 1322 states and 1984 transitions. [2024-10-11 05:15:29,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:29,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2024-10-11 05:15:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:29,198 INFO L225 Difference]: With dead ends: 1322 [2024-10-11 05:15:29,198 INFO L226 Difference]: Without dead ends: 684 [2024-10-11 05:15:29,205 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 05:15:29,210 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:29,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3052 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-10-11 05:15:29,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2024-10-11 05:15:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.499267935578331) internal successors, (1024), 683 states have internal predecessors, (1024), 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 05:15:29,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1024 transitions. [2024-10-11 05:15:29,279 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1024 transitions. Word has length 84 [2024-10-11 05:15:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:29,279 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1024 transitions. [2024-10-11 05:15:29,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 05:15:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1024 transitions. [2024-10-11 05:15:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 05:15:29,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:29,283 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:15:29,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 05:15:29,283 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:29,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:29,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2121460661, now seen corresponding path program 1 times [2024-10-11 05:15:29,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:29,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672864426] [2024-10-11 05:15:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:29,546 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 05:15:29,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:29,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672864426] [2024-10-11 05:15:29,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672864426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:29,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:29,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:29,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858183253] [2024-10-11 05:15:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:29,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:29,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:29,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:29,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:29,554 INFO L87 Difference]: Start difference. First operand 684 states and 1024 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 05:15:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:29,603 INFO L93 Difference]: Finished difference Result 1325 states and 1984 transitions. [2024-10-11 05:15:29,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:29,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 85 [2024-10-11 05:15:29,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:29,610 INFO L225 Difference]: With dead ends: 1325 [2024-10-11 05:15:29,610 INFO L226 Difference]: Without dead ends: 686 [2024-10-11 05:15:29,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:29,612 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:29,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3049 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:29,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-10-11 05:15:29,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2024-10-11 05:15:29,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 685 states have (on average 1.4978102189781022) internal successors, (1026), 685 states have internal predecessors, (1026), 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 05:15:29,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1026 transitions. [2024-10-11 05:15:29,647 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1026 transitions. Word has length 85 [2024-10-11 05:15:29,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:29,647 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 1026 transitions. [2024-10-11 05:15:29,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 05:15:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1026 transitions. [2024-10-11 05:15:29,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 05:15:29,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:29,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 05:15:29,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 05:15:29,653 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:29,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1856230823, now seen corresponding path program 1 times [2024-10-11 05:15:29,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:29,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231359706] [2024-10-11 05:15:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:29,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:29,982 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 05:15:29,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:29,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231359706] [2024-10-11 05:15:29,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231359706] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:29,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:29,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:29,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297097527] [2024-10-11 05:15:29,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:29,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:15:29,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:15:29,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:29,988 INFO L87 Difference]: Start difference. First operand 686 states and 1026 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 05:15:30,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:30,072 INFO L93 Difference]: Finished difference Result 1954 states and 2925 transitions. [2024-10-11 05:15:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 05:15:30,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 86 [2024-10-11 05:15:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:30,080 INFO L225 Difference]: With dead ends: 1954 [2024-10-11 05:15:30,080 INFO L226 Difference]: Without dead ends: 1313 [2024-10-11 05:15:30,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:15:30,083 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 928 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 3998 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:30,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 3998 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-10-11 05:15:30,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 796. [2024-10-11 05:15:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 1.4968553459119496) internal successors, (1190), 795 states have internal predecessors, (1190), 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 05:15:30,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1190 transitions. [2024-10-11 05:15:30,108 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1190 transitions. Word has length 86 [2024-10-11 05:15:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:30,108 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1190 transitions. [2024-10-11 05:15:30,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 05:15:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1190 transitions. [2024-10-11 05:15:30,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-10-11 05:15:30,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:30,120 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:30,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 05:15:30,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:30,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:30,121 INFO L85 PathProgramCache]: Analyzing trace with hash -232678060, now seen corresponding path program 1 times [2024-10-11 05:15:30,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:30,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894721831] [2024-10-11 05:15:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:31,529 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-10-11 05:15:31,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:31,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894721831] [2024-10-11 05:15:31,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894721831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:31,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:31,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:15:31,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209017405] [2024-10-11 05:15:31,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:31,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:15:31,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:31,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:15:31,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:31,534 INFO L87 Difference]: Start difference. First operand 796 states and 1190 transitions. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 05:15:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:31,597 INFO L93 Difference]: Finished difference Result 1441 states and 2154 transitions. [2024-10-11 05:15:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:31,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 391 [2024-10-11 05:15:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:31,605 INFO L225 Difference]: With dead ends: 1441 [2024-10-11 05:15:31,606 INFO L226 Difference]: Without dead ends: 800 [2024-10-11 05:15:31,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:31,610 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:31,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3049 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:31,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-11 05:15:31,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 796. [2024-10-11 05:15:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 1.4968553459119496) internal successors, (1190), 795 states have internal predecessors, (1190), 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 05:15:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1190 transitions. [2024-10-11 05:15:31,650 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1190 transitions. Word has length 391 [2024-10-11 05:15:31,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:31,652 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1190 transitions. [2024-10-11 05:15:31,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 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 05:15:31,653 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1190 transitions. [2024-10-11 05:15:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-10-11 05:15:31,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:31,659 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:31,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 05:15:31,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:31,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:31,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2009165243, now seen corresponding path program 1 times [2024-10-11 05:15:31,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:31,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446130113] [2024-10-11 05:15:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:31,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-11 05:15:32,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:32,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446130113] [2024-10-11 05:15:32,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446130113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:32,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:32,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:32,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863010097] [2024-10-11 05:15:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:32,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:32,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:32,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:32,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:32,669 INFO L87 Difference]: Start difference. First operand 796 states and 1190 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 05:15:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:32,708 INFO L93 Difference]: Finished difference Result 1445 states and 2160 transitions. [2024-10-11 05:15:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:32,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 392 [2024-10-11 05:15:32,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:32,713 INFO L225 Difference]: With dead ends: 1445 [2024-10-11 05:15:32,714 INFO L226 Difference]: Without dead ends: 800 [2024-10-11 05:15:32,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:32,716 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:32,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3049 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:32,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-11 05:15:32,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2024-10-11 05:15:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4956085319949812) internal successors, (1192), 797 states have internal predecessors, (1192), 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 05:15:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1192 transitions. [2024-10-11 05:15:32,732 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1192 transitions. Word has length 392 [2024-10-11 05:15:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:32,733 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1192 transitions. [2024-10-11 05:15:32,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 05:15:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1192 transitions. [2024-10-11 05:15:32,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-10-11 05:15:32,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:32,740 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:32,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 05:15:32,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:32,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1040386675, now seen corresponding path program 1 times [2024-10-11 05:15:32,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:32,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882752122] [2024-10-11 05:15:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:32,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-10-11 05:15:33,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:33,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882752122] [2024-10-11 05:15:33,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882752122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:33,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:33,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:15:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455638918] [2024-10-11 05:15:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:33,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:15:33,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:15:33,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:33,740 INFO L87 Difference]: Start difference. First operand 798 states and 1192 transitions. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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 05:15:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:33,782 INFO L93 Difference]: Finished difference Result 1453 states and 2170 transitions. [2024-10-11 05:15:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:33,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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 393 [2024-10-11 05:15:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:33,787 INFO L225 Difference]: With dead ends: 1453 [2024-10-11 05:15:33,787 INFO L226 Difference]: Without dead ends: 802 [2024-10-11 05:15:33,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:33,789 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:33,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3049 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-10-11 05:15:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 800. [2024-10-11 05:15:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.4943679599499373) internal successors, (1194), 799 states have internal predecessors, (1194), 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 05:15:33,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1194 transitions. [2024-10-11 05:15:33,810 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1194 transitions. Word has length 393 [2024-10-11 05:15:33,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:33,812 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1194 transitions. [2024-10-11 05:15:33,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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 05:15:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1194 transitions. [2024-10-11 05:15:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-10-11 05:15:33,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:33,822 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:33,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 05:15:33,823 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:33,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:33,823 INFO L85 PathProgramCache]: Analyzing trace with hash -823697780, now seen corresponding path program 1 times [2024-10-11 05:15:33,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:33,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924053941] [2024-10-11 05:15:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:33,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-11 05:15:34,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:34,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924053941] [2024-10-11 05:15:34,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924053941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:34,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:34,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:15:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733898699] [2024-10-11 05:15:34,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:34,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:15:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:34,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:15:34,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:34,790 INFO L87 Difference]: Start difference. First operand 800 states and 1194 transitions. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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 05:15:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:34,838 INFO L93 Difference]: Finished difference Result 1461 states and 2180 transitions. [2024-10-11 05:15:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:34,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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 394 [2024-10-11 05:15:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:34,843 INFO L225 Difference]: With dead ends: 1461 [2024-10-11 05:15:34,843 INFO L226 Difference]: Without dead ends: 804 [2024-10-11 05:15:34,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:15:34,847 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:34,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3049 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-10-11 05:15:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 802. [2024-10-11 05:15:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 1.4931335830212236) internal successors, (1196), 801 states have internal predecessors, (1196), 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 05:15:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1196 transitions. [2024-10-11 05:15:34,864 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1196 transitions. Word has length 394 [2024-10-11 05:15:34,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:34,864 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1196 transitions. [2024-10-11 05:15:34,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 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 05:15:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1196 transitions. [2024-10-11 05:15:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-10-11 05:15:34,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:34,871 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:34,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 05:15:34,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:34,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1072752442, now seen corresponding path program 1 times [2024-10-11 05:15:34,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:34,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236364738] [2024-10-11 05:15:34,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:34,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:35,689 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 05:15:35,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:35,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236364738] [2024-10-11 05:15:35,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236364738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:35,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:35,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:35,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362023732] [2024-10-11 05:15:35,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:35,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:35,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:35,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:35,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:35,692 INFO L87 Difference]: Start difference. First operand 802 states and 1196 transitions. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 05:15:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:35,731 INFO L93 Difference]: Finished difference Result 1477 states and 2202 transitions. [2024-10-11 05:15:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 395 [2024-10-11 05:15:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:35,735 INFO L225 Difference]: With dead ends: 1477 [2024-10-11 05:15:35,736 INFO L226 Difference]: Without dead ends: 814 [2024-10-11 05:15:35,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:35,737 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 4 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:35,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3049 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-10-11 05:15:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 808. [2024-10-11 05:15:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 807 states have (on average 1.4919454770755887) internal successors, (1204), 807 states have internal predecessors, (1204), 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 05:15:35,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1204 transitions. [2024-10-11 05:15:35,751 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1204 transitions. Word has length 395 [2024-10-11 05:15:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:35,752 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1204 transitions. [2024-10-11 05:15:35,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 05:15:35,752 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1204 transitions. [2024-10-11 05:15:35,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-10-11 05:15:35,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:35,757 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:35,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 05:15:35,758 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:35,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 725836826, now seen corresponding path program 1 times [2024-10-11 05:15:35,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:35,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766792144] [2024-10-11 05:15:35,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:35,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-11 05:15:36,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:36,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766792144] [2024-10-11 05:15:36,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766792144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:36,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:36,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:36,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636205388] [2024-10-11 05:15:36,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:36,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:36,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:36,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:36,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:36,657 INFO L87 Difference]: Start difference. First operand 808 states and 1204 transitions. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 05:15:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:36,695 INFO L93 Difference]: Finished difference Result 1497 states and 2230 transitions. [2024-10-11 05:15:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:36,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 396 [2024-10-11 05:15:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:36,700 INFO L225 Difference]: With dead ends: 1497 [2024-10-11 05:15:36,700 INFO L226 Difference]: Without dead ends: 820 [2024-10-11 05:15:36,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:36,701 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 4 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:36,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3049 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-10-11 05:15:36,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 814. [2024-10-11 05:15:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4907749077490775) internal successors, (1212), 813 states have internal predecessors, (1212), 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 05:15:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1212 transitions. [2024-10-11 05:15:36,716 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1212 transitions. Word has length 396 [2024-10-11 05:15:36,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:36,717 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1212 transitions. [2024-10-11 05:15:36,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 05:15:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1212 transitions. [2024-10-11 05:15:36,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-10-11 05:15:36,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:36,723 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:36,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 05:15:36,723 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:36,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:36,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1416329800, now seen corresponding path program 1 times [2024-10-11 05:15:36,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:36,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304657548] [2024-10-11 05:15:36,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:36,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 05:15:37,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304657548] [2024-10-11 05:15:37,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304657548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:37,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:37,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:37,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161642702] [2024-10-11 05:15:37,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:37,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:37,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:37,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:37,434 INFO L87 Difference]: Start difference. First operand 814 states and 1212 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 05:15:37,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:37,473 INFO L93 Difference]: Finished difference Result 1509 states and 2246 transitions. [2024-10-11 05:15:37,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:37,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 397 [2024-10-11 05:15:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:37,478 INFO L225 Difference]: With dead ends: 1509 [2024-10-11 05:15:37,478 INFO L226 Difference]: Without dead ends: 818 [2024-10-11 05:15:37,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:37,480 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:37,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3049 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-10-11 05:15:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 816. [2024-10-11 05:15:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 815 states have (on average 1.4895705521472393) internal successors, (1214), 815 states have internal predecessors, (1214), 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 05:15:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1214 transitions. [2024-10-11 05:15:37,494 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1214 transitions. Word has length 397 [2024-10-11 05:15:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:37,495 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1214 transitions. [2024-10-11 05:15:37,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 05:15:37,496 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1214 transitions. [2024-10-11 05:15:37,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-10-11 05:15:37,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:37,502 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:37,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 05:15:37,503 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:37,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash 473599265, now seen corresponding path program 1 times [2024-10-11 05:15:37,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:37,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739282559] [2024-10-11 05:15:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:37,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-11 05:15:38,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:38,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739282559] [2024-10-11 05:15:38,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739282559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:38,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:38,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:38,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310715626] [2024-10-11 05:15:38,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:38,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:38,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:38,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:38,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:38,235 INFO L87 Difference]: Start difference. First operand 816 states and 1214 transitions. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 05:15:38,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:38,280 INFO L93 Difference]: Finished difference Result 1517 states and 2256 transitions. [2024-10-11 05:15:38,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:38,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 398 [2024-10-11 05:15:38,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:38,285 INFO L225 Difference]: With dead ends: 1517 [2024-10-11 05:15:38,286 INFO L226 Difference]: Without dead ends: 820 [2024-10-11 05:15:38,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:38,287 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:38,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3043 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-10-11 05:15:38,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 818. [2024-10-11 05:15:38,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 817 states have (on average 1.4883720930232558) internal successors, (1216), 817 states have internal predecessors, (1216), 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 05:15:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1216 transitions. [2024-10-11 05:15:38,302 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1216 transitions. Word has length 398 [2024-10-11 05:15:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:38,302 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1216 transitions. [2024-10-11 05:15:38,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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 05:15:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1216 transitions. [2024-10-11 05:15:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-10-11 05:15:38,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:38,309 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:38,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 05:15:38,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:38,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -4021199, now seen corresponding path program 1 times [2024-10-11 05:15:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:38,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773529915] [2024-10-11 05:15:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:38,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:39,115 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-11 05:15:39,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:39,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773529915] [2024-10-11 05:15:39,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773529915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:39,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:39,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:39,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559119604] [2024-10-11 05:15:39,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:39,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:39,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:39,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:39,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:39,119 INFO L87 Difference]: Start difference. First operand 818 states and 1216 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 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 05:15:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:39,163 INFO L93 Difference]: Finished difference Result 1531 states and 2274 transitions. [2024-10-11 05:15:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:39,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 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 399 [2024-10-11 05:15:39,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:39,168 INFO L225 Difference]: With dead ends: 1531 [2024-10-11 05:15:39,168 INFO L226 Difference]: Without dead ends: 832 [2024-10-11 05:15:39,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:39,170 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 3 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:39,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3049 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:39,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2024-10-11 05:15:39,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 822. [2024-10-11 05:15:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 821 states have (on average 1.4884287454323994) internal successors, (1222), 821 states have internal predecessors, (1222), 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 05:15:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1222 transitions. [2024-10-11 05:15:39,188 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1222 transitions. Word has length 399 [2024-10-11 05:15:39,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:39,189 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1222 transitions. [2024-10-11 05:15:39,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 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 05:15:39,189 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1222 transitions. [2024-10-11 05:15:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-10-11 05:15:39,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:39,193 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:39,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 05:15:39,193 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:39,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:39,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1860234456, now seen corresponding path program 1 times [2024-10-11 05:15:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:39,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257588580] [2024-10-11 05:15:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:39,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 05:15:39,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:39,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257588580] [2024-10-11 05:15:39,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257588580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:39,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:15:39,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:15:39,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550787060] [2024-10-11 05:15:39,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:39,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:15:39,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:39,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:15:39,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:15:39,990 INFO L87 Difference]: Start difference. First operand 822 states and 1222 transitions. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 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 05:15:40,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:40,042 INFO L93 Difference]: Finished difference Result 1537 states and 2284 transitions. [2024-10-11 05:15:40,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:15:40,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 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) Word has length 400 [2024-10-11 05:15:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:40,047 INFO L225 Difference]: With dead ends: 1537 [2024-10-11 05:15:40,047 INFO L226 Difference]: Without dead ends: 826 [2024-10-11 05:15:40,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 05:15:40,049 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:40,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3043 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:15:40,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-10-11 05:15:40,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 824. [2024-10-11 05:15:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 823 states have (on average 1.4872417982989063) internal successors, (1224), 823 states have internal predecessors, (1224), 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 05:15:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1224 transitions. [2024-10-11 05:15:40,069 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1224 transitions. Word has length 400 [2024-10-11 05:15:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:40,069 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1224 transitions. [2024-10-11 05:15:40,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 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 05:15:40,070 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1224 transitions. [2024-10-11 05:15:40,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-10-11 05:15:40,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:40,075 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:40,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 05:15:40,075 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:40,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash -631272022, now seen corresponding path program 1 times [2024-10-11 05:15:40,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:40,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394364388] [2024-10-11 05:15:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:41,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:41,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394364388] [2024-10-11 05:15:41,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394364388] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:15:41,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059791951] [2024-10-11 05:15:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:41,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:41,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:41,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:15:41,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 05:15:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:41,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 05:15:41,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:15:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:42,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:15:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 28 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:43,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059791951] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 05:15:43,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 05:15:43,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-10-11 05:15:43,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337727804] [2024-10-11 05:15:43,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 05:15:43,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 05:15:43,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:43,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 05:15:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-11 05:15:43,580 INFO L87 Difference]: Start difference. First operand 824 states and 1224 transitions. Second operand has 15 states, 15 states have (on average 54.666666666666664) internal successors, (820), 15 states have internal predecessors, (820), 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 05:15:45,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:45,313 INFO L93 Difference]: Finished difference Result 6424 states and 9527 transitions. [2024-10-11 05:15:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 05:15:45,314 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 54.666666666666664) internal successors, (820), 15 states have internal predecessors, (820), 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 401 [2024-10-11 05:15:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:45,332 INFO L225 Difference]: With dead ends: 6424 [2024-10-11 05:15:45,332 INFO L226 Difference]: Without dead ends: 3699 [2024-10-11 05:15:45,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=391, Invalid=2365, Unknown=0, NotChecked=0, Total=2756 [2024-10-11 05:15:45,340 INFO L432 NwaCegarLoop]: 1002 mSDtfsCounter, 18799 mSDsluCounter, 10552 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18799 SdHoareTripleChecker+Valid, 11554 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:45,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18799 Valid, 11554 Invalid, 1089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [147 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 05:15:45,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-10-11 05:15:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 1589. [2024-10-11 05:15:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 1.486146095717884) internal successors, (2360), 1588 states have internal predecessors, (2360), 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 05:15:45,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2360 transitions. [2024-10-11 05:15:45,439 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2360 transitions. Word has length 401 [2024-10-11 05:15:45,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:45,439 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2360 transitions. [2024-10-11 05:15:45,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 54.666666666666664) internal successors, (820), 15 states have internal predecessors, (820), 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 05:15:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2360 transitions. [2024-10-11 05:15:45,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-10-11 05:15:45,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:45,444 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:45,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 05:15:45,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 05:15:45,649 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:45,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:45,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1830369150, now seen corresponding path program 1 times [2024-10-11 05:15:45,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:45,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678787416] [2024-10-11 05:15:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:45,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 34 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:46,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:46,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678787416] [2024-10-11 05:15:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678787416] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:15:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005930498] [2024-10-11 05:15:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:46,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:46,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:46,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:15:46,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 05:15:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:47,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 1698 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 05:15:47,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:15:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 05:15:47,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:15:47,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005930498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:47,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:15:47,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-10-11 05:15:47,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652561337] [2024-10-11 05:15:47,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:47,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:15:47,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:47,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:15:47,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 05:15:47,497 INFO L87 Difference]: Start difference. First operand 1589 states and 2360 transitions. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 5 states have internal predecessors, (389), 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 05:15:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:48,205 INFO L93 Difference]: Finished difference Result 4113 states and 6105 transitions. [2024-10-11 05:15:48,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:15:48,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 5 states have internal predecessors, (389), 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 403 [2024-10-11 05:15:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:48,217 INFO L225 Difference]: With dead ends: 4113 [2024-10-11 05:15:48,217 INFO L226 Difference]: Without dead ends: 2677 [2024-10-11 05:15:48,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 05:15:48,223 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 902 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 4214 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:48,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 4214 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 05:15:48,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2024-10-11 05:15:48,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 1601. [2024-10-11 05:15:48,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1600 states have (on average 1.48375) internal successors, (2374), 1600 states have internal predecessors, (2374), 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 05:15:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2374 transitions. [2024-10-11 05:15:48,275 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2374 transitions. Word has length 403 [2024-10-11 05:15:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:48,276 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2374 transitions. [2024-10-11 05:15:48,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 5 states have internal predecessors, (389), 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 05:15:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2374 transitions. [2024-10-11 05:15:48,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-10-11 05:15:48,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:48,281 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:48,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 05:15:48,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 05:15:48,482 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:48,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:48,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1685952364, now seen corresponding path program 1 times [2024-10-11 05:15:48,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:48,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666665384] [2024-10-11 05:15:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:48,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:49,471 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:49,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:49,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666665384] [2024-10-11 05:15:49,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666665384] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:15:49,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248616630] [2024-10-11 05:15:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:49,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:49,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:15:49,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 05:15:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:50,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 05:15:50,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:15:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 05:15:50,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:15:50,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248616630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:50,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:15:50,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-10-11 05:15:50,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576062] [2024-10-11 05:15:50,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:50,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:15:50,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:50,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:15:50,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 05:15:50,425 INFO L87 Difference]: Start difference. First operand 1601 states and 2374 transitions. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 5 states have internal predecessors, (397), 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 05:15:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:50,984 INFO L93 Difference]: Finished difference Result 4137 states and 6139 transitions. [2024-10-11 05:15:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:15:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 5 states have internal predecessors, (397), 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 404 [2024-10-11 05:15:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:50,994 INFO L225 Difference]: With dead ends: 4137 [2024-10-11 05:15:50,995 INFO L226 Difference]: Without dead ends: 2701 [2024-10-11 05:15:50,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-11 05:15:50,999 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 1746 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:50,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3475 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 05:15:51,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2024-10-11 05:15:51,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1629. [2024-10-11 05:15:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.479115479115479) internal successors, (2408), 1628 states have internal predecessors, (2408), 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 05:15:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2408 transitions. [2024-10-11 05:15:51,050 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2408 transitions. Word has length 404 [2024-10-11 05:15:51,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:51,051 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2408 transitions. [2024-10-11 05:15:51,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 5 states have internal predecessors, (397), 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 05:15:51,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2408 transitions. [2024-10-11 05:15:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-10-11 05:15:51,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:51,058 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:51,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 05:15:51,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:51,259 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:51,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1844206721, now seen corresponding path program 1 times [2024-10-11 05:15:51,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:51,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417511108] [2024-10-11 05:15:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:52,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:52,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417511108] [2024-10-11 05:15:52,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417511108] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:15:52,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201335722] [2024-10-11 05:15:52,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:52,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:52,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:15:52,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 05:15:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:52,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 05:15:52,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:15:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:53,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:15:53,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201335722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:53,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:15:53,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-11 05:15:53,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172761228] [2024-10-11 05:15:53,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:53,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:15:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:53,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:15:53,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 05:15:53,193 INFO L87 Difference]: Start difference. First operand 1629 states and 2408 transitions. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 05:15:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:53,765 INFO L93 Difference]: Finished difference Result 4027 states and 5948 transitions. [2024-10-11 05:15:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:15:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 405 [2024-10-11 05:15:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:53,774 INFO L225 Difference]: With dead ends: 4027 [2024-10-11 05:15:53,774 INFO L226 Difference]: Without dead ends: 2591 [2024-10-11 05:15:53,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 05:15:53,778 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 1529 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:53,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 3072 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 05:15:53,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2024-10-11 05:15:53,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2083. [2024-10-11 05:15:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 1.4658981748318924) internal successors, (3052), 2082 states have internal predecessors, (3052), 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 05:15:53,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 3052 transitions. [2024-10-11 05:15:53,828 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 3052 transitions. Word has length 405 [2024-10-11 05:15:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:53,828 INFO L471 AbstractCegarLoop]: Abstraction has 2083 states and 3052 transitions. [2024-10-11 05:15:53,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 05:15:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 3052 transitions. [2024-10-11 05:15:53,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-10-11 05:15:53,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:53,834 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:53,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 05:15:54,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 05:15:54,036 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:54,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash 249750370, now seen corresponding path program 1 times [2024-10-11 05:15:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:54,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984284331] [2024-10-11 05:15:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:54,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984284331] [2024-10-11 05:15:54,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984284331] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:15:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273232381] [2024-10-11 05:15:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:54,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:54,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:54,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:15:54,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 05:15:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:55,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 05:15:55,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:15:56,232 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:56,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 05:15:56,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273232381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:15:56,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 05:15:56,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-11 05:15:56,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545808325] [2024-10-11 05:15:56,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:15:56,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:15:56,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:15:56,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:15:56,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 05:15:56,235 INFO L87 Difference]: Start difference. First operand 2083 states and 3052 transitions. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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 05:15:56,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:15:56,838 INFO L93 Difference]: Finished difference Result 4413 states and 6505 transitions. [2024-10-11 05:15:56,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 05:15:56,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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 406 [2024-10-11 05:15:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:15:56,848 INFO L225 Difference]: With dead ends: 4413 [2024-10-11 05:15:56,848 INFO L226 Difference]: Without dead ends: 2591 [2024-10-11 05:15:56,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-11 05:15:56,853 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 1455 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 05:15:56,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 3068 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 05:15:56,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2024-10-11 05:15:56,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2587. [2024-10-11 05:15:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 2586 states have (on average 1.4725444702242847) internal successors, (3808), 2586 states have internal predecessors, (3808), 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 05:15:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3808 transitions. [2024-10-11 05:15:56,908 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3808 transitions. Word has length 406 [2024-10-11 05:15:56,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:15:56,908 INFO L471 AbstractCegarLoop]: Abstraction has 2587 states and 3808 transitions. [2024-10-11 05:15:56,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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 05:15:56,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3808 transitions. [2024-10-11 05:15:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-10-11 05:15:56,914 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:15:56,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:56,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 05:15:57,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 05:15:57,116 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:15:57,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:15:57,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1122001411, now seen corresponding path program 1 times [2024-10-11 05:15:57,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:15:57,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097192648] [2024-10-11 05:15:57,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:57,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:15:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:57,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:15:57,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097192648] [2024-10-11 05:15:57,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097192648] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 05:15:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642540985] [2024-10-11 05:15:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:15:57,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:15:57,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 05:15:57,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 05:15:57,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 05:15:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:15:58,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 1707 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-11 05:15:58,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 05:15:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:15:59,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 05:16:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:01,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642540985] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 05:16:01,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 05:16:01,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15, 11] total 30 [2024-10-11 05:16:01,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925940730] [2024-10-11 05:16:01,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 05:16:01,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-11 05:16:01,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-11 05:16:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2024-10-11 05:16:01,419 INFO L87 Difference]: Start difference. First operand 2587 states and 3808 transitions. Second operand has 30 states, 30 states have (on average 36.266666666666666) internal successors, (1088), 30 states have internal predecessors, (1088), 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 05:16:05,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:05,301 INFO L93 Difference]: Finished difference Result 36579 states and 54048 transitions. [2024-10-11 05:16:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2024-10-11 05:16:05,302 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 36.266666666666666) internal successors, (1088), 30 states have internal predecessors, (1088), 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 406 [2024-10-11 05:16:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:05,382 INFO L225 Difference]: With dead ends: 36579 [2024-10-11 05:16:05,382 INFO L226 Difference]: Without dead ends: 34253 [2024-10-11 05:16:05,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8276 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2177, Invalid=21385, Unknown=0, NotChecked=0, Total=23562 [2024-10-11 05:16:05,407 INFO L432 NwaCegarLoop]: 1854 mSDtfsCounter, 25738 mSDsluCounter, 39969 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25738 SdHoareTripleChecker+Valid, 41823 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:05,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25738 Valid, 41823 Invalid, 1376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 05:16:05,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34253 states. [2024-10-11 05:16:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34253 to 7019. [2024-10-11 05:16:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 1.469649472784269) internal successors, (10314), 7018 states have internal predecessors, (10314), 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 05:16:05,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 10314 transitions. [2024-10-11 05:16:05,753 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 10314 transitions. Word has length 406 [2024-10-11 05:16:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:05,753 INFO L471 AbstractCegarLoop]: Abstraction has 7019 states and 10314 transitions. [2024-10-11 05:16:05,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 36.266666666666666) internal successors, (1088), 30 states have internal predecessors, (1088), 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 05:16:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 10314 transitions. [2024-10-11 05:16:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-10-11 05:16:05,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:05,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:05,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 05:16:05,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 05:16:05,970 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:05,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:05,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1668540066, now seen corresponding path program 1 times [2024-10-11 05:16:05,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:05,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134608881] [2024-10-11 05:16:05,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:05,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-11 05:16:06,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134608881] [2024-10-11 05:16:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134608881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:16:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136319741] [2024-10-11 05:16:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:06,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:16:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:06,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:16:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:16:06,638 INFO L87 Difference]: Start difference. First operand 7019 states and 10314 transitions. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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 05:16:06,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:06,709 INFO L93 Difference]: Finished difference Result 13481 states and 19853 transitions. [2024-10-11 05:16:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:16:06,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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 408 [2024-10-11 05:16:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:06,730 INFO L225 Difference]: With dead ends: 13481 [2024-10-11 05:16:06,730 INFO L226 Difference]: Without dead ends: 7091 [2024-10-11 05:16:06,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:16:06,741 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 0 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:06,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3043 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:16:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2024-10-11 05:16:06,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 7019. [2024-10-11 05:16:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 1.469649472784269) internal successors, (10314), 7018 states have internal predecessors, (10314), 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 05:16:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 10314 transitions. [2024-10-11 05:16:06,885 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 10314 transitions. Word has length 408 [2024-10-11 05:16:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:06,886 INFO L471 AbstractCegarLoop]: Abstraction has 7019 states and 10314 transitions. [2024-10-11 05:16:06,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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 05:16:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 10314 transitions. [2024-10-11 05:16:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-10-11 05:16:06,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:06,899 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:06,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 05:16:06,900 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:06,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:06,900 INFO L85 PathProgramCache]: Analyzing trace with hash 54726875, now seen corresponding path program 1 times [2024-10-11 05:16:06,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929713955] [2024-10-11 05:16:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:06,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-11 05:16:07,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:07,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929713955] [2024-10-11 05:16:07,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929713955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:07,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:07,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:16:07,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899607229] [2024-10-11 05:16:07,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:07,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 05:16:07,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:07,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 05:16:07,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:16:07,537 INFO L87 Difference]: Start difference. First operand 7019 states and 10314 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 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 05:16:07,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:07,616 INFO L93 Difference]: Finished difference Result 13457 states and 19829 transitions. [2024-10-11 05:16:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:16:07,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 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) Word has length 409 [2024-10-11 05:16:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:07,631 INFO L225 Difference]: With dead ends: 13457 [2024-10-11 05:16:07,631 INFO L226 Difference]: Without dead ends: 7067 [2024-10-11 05:16:07,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 05:16:07,641 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:07,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4054 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 05:16:07,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2024-10-11 05:16:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 7019. [2024-10-11 05:16:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 1.469649472784269) internal successors, (10314), 7018 states have internal predecessors, (10314), 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 05:16:07,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 10314 transitions. [2024-10-11 05:16:07,758 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 10314 transitions. Word has length 409 [2024-10-11 05:16:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:07,759 INFO L471 AbstractCegarLoop]: Abstraction has 7019 states and 10314 transitions. [2024-10-11 05:16:07,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 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 05:16:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 10314 transitions. [2024-10-11 05:16:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-10-11 05:16:07,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:07,772 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:07,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 05:16:07,772 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:07,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:07,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1170883166, now seen corresponding path program 1 times [2024-10-11 05:16:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:07,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694656905] [2024-10-11 05:16:07,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:07,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 05:16:08,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:08,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694656905] [2024-10-11 05:16:08,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694656905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:08,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:08,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:16:08,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955805221] [2024-10-11 05:16:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:08,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:16:08,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:08,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:16:08,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:08,986 INFO L87 Difference]: Start difference. First operand 7019 states and 10314 transitions. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 5 states have internal predecessors, (399), 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 05:16:09,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:09,695 INFO L93 Difference]: Finished difference Result 17717 states and 26126 transitions. [2024-10-11 05:16:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:16:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 5 states have internal predecessors, (399), 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 410 [2024-10-11 05:16:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:09,714 INFO L225 Difference]: With dead ends: 17717 [2024-10-11 05:16:09,714 INFO L226 Difference]: Without dead ends: 11279 [2024-10-11 05:16:09,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:09,727 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 902 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:09,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 4218 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 05:16:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11279 states. [2024-10-11 05:16:09,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11279 to 7019. [2024-10-11 05:16:09,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 1.4679395839270448) internal successors, (10302), 7018 states have internal predecessors, (10302), 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 05:16:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 10302 transitions. [2024-10-11 05:16:09,877 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 10302 transitions. Word has length 410 [2024-10-11 05:16:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:09,878 INFO L471 AbstractCegarLoop]: Abstraction has 7019 states and 10302 transitions. [2024-10-11 05:16:09,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 5 states have internal predecessors, (399), 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 05:16:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 10302 transitions. [2024-10-11 05:16:09,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-10-11 05:16:09,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:09,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:09,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 05:16:09,891 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:09,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:09,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1836262401, now seen corresponding path program 1 times [2024-10-11 05:16:09,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:09,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988541476] [2024-10-11 05:16:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:09,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:10,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:10,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988541476] [2024-10-11 05:16:10,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988541476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:10,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:10,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:16:10,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989175654] [2024-10-11 05:16:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:10,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:16:10,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:16:10,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:10,833 INFO L87 Difference]: Start difference. First operand 7019 states and 10302 transitions. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 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 05:16:11,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:11,530 INFO L93 Difference]: Finished difference Result 19165 states and 28166 transitions. [2024-10-11 05:16:11,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:16:11,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 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 411 [2024-10-11 05:16:11,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:11,552 INFO L225 Difference]: With dead ends: 19165 [2024-10-11 05:16:11,553 INFO L226 Difference]: Without dead ends: 12775 [2024-10-11 05:16:11,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:11,565 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 2033 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:11,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 2766 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 05:16:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12775 states. [2024-10-11 05:16:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12775 to 9935. [2024-10-11 05:16:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9935 states, 9934 states have (on average 1.453795047312261) internal successors, (14442), 9934 states have internal predecessors, (14442), 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 05:16:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9935 states to 9935 states and 14442 transitions. [2024-10-11 05:16:11,722 INFO L78 Accepts]: Start accepts. Automaton has 9935 states and 14442 transitions. Word has length 411 [2024-10-11 05:16:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:11,723 INFO L471 AbstractCegarLoop]: Abstraction has 9935 states and 14442 transitions. [2024-10-11 05:16:11,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 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 05:16:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 9935 states and 14442 transitions. [2024-10-11 05:16:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-10-11 05:16:11,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:11,740 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:11,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 05:16:11,741 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:11,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1354937575, now seen corresponding path program 1 times [2024-10-11 05:16:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507668961] [2024-10-11 05:16:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:11,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:12,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:12,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507668961] [2024-10-11 05:16:12,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507668961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:12,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:12,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:16:12,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960567755] [2024-10-11 05:16:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:12,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:16:12,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:12,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:16:12,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:12,576 INFO L87 Difference]: Start difference. First operand 9935 states and 14442 transitions. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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 05:16:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:13,341 INFO L93 Difference]: Finished difference Result 27169 states and 39566 transitions. [2024-10-11 05:16:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:16:13,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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 412 [2024-10-11 05:16:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:13,368 INFO L225 Difference]: With dead ends: 27169 [2024-10-11 05:16:13,369 INFO L226 Difference]: Without dead ends: 18319 [2024-10-11 05:16:13,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:13,382 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 1973 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:13,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 2756 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 05:16:13,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18319 states. [2024-10-11 05:16:13,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18319 to 15719. [2024-10-11 05:16:13,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15719 states, 15718 states have (on average 1.4410230309199643) internal successors, (22650), 15718 states have internal predecessors, (22650), 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 05:16:13,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15719 states to 15719 states and 22650 transitions. [2024-10-11 05:16:13,663 INFO L78 Accepts]: Start accepts. Automaton has 15719 states and 22650 transitions. Word has length 412 [2024-10-11 05:16:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:13,664 INFO L471 AbstractCegarLoop]: Abstraction has 15719 states and 22650 transitions. [2024-10-11 05:16:13,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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 05:16:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 15719 states and 22650 transitions. [2024-10-11 05:16:13,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-10-11 05:16:13,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:13,695 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:13,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 05:16:13,695 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:13,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:13,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1282105514, now seen corresponding path program 1 times [2024-10-11 05:16:13,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026929560] [2024-10-11 05:16:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:14,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026929560] [2024-10-11 05:16:14,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026929560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:14,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:14,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 05:16:14,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88816786] [2024-10-11 05:16:14,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:14,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:16:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:14,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:16:14,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:14,688 INFO L87 Difference]: Start difference. First operand 15719 states and 22650 transitions. Second operand has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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 05:16:15,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:15,365 INFO L93 Difference]: Finished difference Result 43070 states and 62203 transitions. [2024-10-11 05:16:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 05:16:15,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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 413 [2024-10-11 05:16:15,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:15,410 INFO L225 Difference]: With dead ends: 43070 [2024-10-11 05:16:15,410 INFO L226 Difference]: Without dead ends: 29300 [2024-10-11 05:16:15,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:15,436 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 2290 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2290 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:15,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2290 Valid, 3072 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 05:16:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29300 states. [2024-10-11 05:16:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29300 to 27395. [2024-10-11 05:16:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27395 states, 27394 states have (on average 1.432211433160546) internal successors, (39234), 27394 states have internal predecessors, (39234), 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 05:16:15,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27395 states to 27395 states and 39234 transitions. [2024-10-11 05:16:15,810 INFO L78 Accepts]: Start accepts. Automaton has 27395 states and 39234 transitions. Word has length 413 [2024-10-11 05:16:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:15,810 INFO L471 AbstractCegarLoop]: Abstraction has 27395 states and 39234 transitions. [2024-10-11 05:16:15,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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 05:16:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 27395 states and 39234 transitions. [2024-10-11 05:16:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-10-11 05:16:15,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:15,849 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:15,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 05:16:15,849 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:15,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:15,850 INFO L85 PathProgramCache]: Analyzing trace with hash 933828592, now seen corresponding path program 1 times [2024-10-11 05:16:15,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:15,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471053724] [2024-10-11 05:16:15,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:15,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471053724] [2024-10-11 05:16:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471053724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:17,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:17,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 05:16:17,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642238665] [2024-10-11 05:16:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:17,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 05:16:17,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:17,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 05:16:17,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 05:16:17,204 INFO L87 Difference]: Start difference. First operand 27395 states and 39234 transitions. Second operand has 6 states, 6 states have (on average 69.0) internal successors, (414), 5 states have internal predecessors, (414), 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 05:16:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:17,790 INFO L93 Difference]: Finished difference Result 51497 states and 74297 transitions. [2024-10-11 05:16:17,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 05:16:17,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 5 states have internal predecessors, (414), 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 414 [2024-10-11 05:16:17,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:17,824 INFO L225 Difference]: With dead ends: 51497 [2024-10-11 05:16:17,824 INFO L226 Difference]: Without dead ends: 27491 [2024-10-11 05:16:17,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 05:16:17,847 INFO L432 NwaCegarLoop]: 774 mSDtfsCounter, 900 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:17,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 2312 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 05:16:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27491 states. [2024-10-11 05:16:18,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27491 to 27443. [2024-10-11 05:16:18,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27443 states, 27442 states have (on average 1.4314554332774578) internal successors, (39282), 27442 states have internal predecessors, (39282), 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 05:16:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27443 states to 27443 states and 39282 transitions. [2024-10-11 05:16:18,135 INFO L78 Accepts]: Start accepts. Automaton has 27443 states and 39282 transitions. Word has length 414 [2024-10-11 05:16:18,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:18,136 INFO L471 AbstractCegarLoop]: Abstraction has 27443 states and 39282 transitions. [2024-10-11 05:16:18,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.0) internal successors, (414), 5 states have internal predecessors, (414), 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 05:16:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 27443 states and 39282 transitions. [2024-10-11 05:16:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-10-11 05:16:18,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:18,175 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:18,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 05:16:18,175 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:18,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:18,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1839824732, now seen corresponding path program 1 times [2024-10-11 05:16:18,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:18,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496293192] [2024-10-11 05:16:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:18,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:19,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:19,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496293192] [2024-10-11 05:16:19,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496293192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:19,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:19,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 05:16:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313258308] [2024-10-11 05:16:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:19,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 05:16:19,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 05:16:19,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-11 05:16:19,605 INFO L87 Difference]: Start difference. First operand 27443 states and 39282 transitions. Second operand has 8 states, 8 states have (on average 51.875) internal successors, (415), 8 states have internal predecessors, (415), 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 05:16:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:20,680 INFO L93 Difference]: Finished difference Result 69441 states and 99908 transitions. [2024-10-11 05:16:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 05:16:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 51.875) internal successors, (415), 8 states have internal predecessors, (415), 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 415 [2024-10-11 05:16:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:20,733 INFO L225 Difference]: With dead ends: 69441 [2024-10-11 05:16:20,733 INFO L226 Difference]: Without dead ends: 45387 [2024-10-11 05:16:20,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-11 05:16:20,765 INFO L432 NwaCegarLoop]: 1302 mSDtfsCounter, 1605 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 4667 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:20,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 4667 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 05:16:20,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45387 states. [2024-10-11 05:16:21,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45387 to 44051. [2024-10-11 05:16:21,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44051 states, 44050 states have (on average 1.428967082860386) internal successors, (62946), 44050 states have internal predecessors, (62946), 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 05:16:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44051 states to 44051 states and 62946 transitions. [2024-10-11 05:16:21,304 INFO L78 Accepts]: Start accepts. Automaton has 44051 states and 62946 transitions. Word has length 415 [2024-10-11 05:16:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:21,304 INFO L471 AbstractCegarLoop]: Abstraction has 44051 states and 62946 transitions. [2024-10-11 05:16:21,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 51.875) internal successors, (415), 8 states have internal predecessors, (415), 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 05:16:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 44051 states and 62946 transitions. [2024-10-11 05:16:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-10-11 05:16:21,369 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:21,370 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:21,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 05:16:21,370 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:21,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:21,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1958524661, now seen corresponding path program 1 times [2024-10-11 05:16:21,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:21,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119769304] [2024-10-11 05:16:21,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:22,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:22,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119769304] [2024-10-11 05:16:22,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119769304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:22,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:22,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:16:22,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246926762] [2024-10-11 05:16:22,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:22,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:16:22,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:22,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:16:22,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:16:22,145 INFO L87 Difference]: Start difference. First operand 44051 states and 62946 transitions. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 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 05:16:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:22,646 INFO L93 Difference]: Finished difference Result 82521 states and 118801 transitions. [2024-10-11 05:16:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:16:22,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 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 415 [2024-10-11 05:16:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:22,696 INFO L225 Difference]: With dead ends: 82521 [2024-10-11 05:16:22,696 INFO L226 Difference]: Without dead ends: 44051 [2024-10-11 05:16:22,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:16:22,730 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 890 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:22,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 1544 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 05:16:22,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44051 states. [2024-10-11 05:16:23,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44051 to 43971. [2024-10-11 05:16:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43971 states, 43970 states have (on average 1.4288378439845348) internal successors, (62826), 43970 states have internal predecessors, (62826), 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 05:16:23,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43971 states to 43971 states and 62826 transitions. [2024-10-11 05:16:23,412 INFO L78 Accepts]: Start accepts. Automaton has 43971 states and 62826 transitions. Word has length 415 [2024-10-11 05:16:23,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 05:16:23,412 INFO L471 AbstractCegarLoop]: Abstraction has 43971 states and 62826 transitions. [2024-10-11 05:16:23,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 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 05:16:23,412 INFO L276 IsEmpty]: Start isEmpty. Operand 43971 states and 62826 transitions. [2024-10-11 05:16:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-10-11 05:16:23,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 05:16:23,469 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:16:23,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 05:16:23,469 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 05:16:23,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 05:16:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1745734195, now seen corresponding path program 1 times [2024-10-11 05:16:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 05:16:23,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577547443] [2024-10-11 05:16:23,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 05:16:23,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 05:16:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 05:16:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 05:16:24,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 05:16:24,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577547443] [2024-10-11 05:16:24,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577547443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 05:16:24,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 05:16:24,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 05:16:24,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170943871] [2024-10-11 05:16:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 05:16:24,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 05:16:24,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 05:16:24,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 05:16:24,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:16:24,327 INFO L87 Difference]: Start difference. First operand 43971 states and 62826 transitions. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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 05:16:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 05:16:24,916 INFO L93 Difference]: Finished difference Result 82361 states and 118561 transitions. [2024-10-11 05:16:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 05:16:24,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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 416 [2024-10-11 05:16:24,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 05:16:24,965 INFO L225 Difference]: With dead ends: 82361 [2024-10-11 05:16:24,965 INFO L226 Difference]: Without dead ends: 43971 [2024-10-11 05:16:24,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 05:16:24,999 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 946 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 05:16:24,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 1544 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 05:16:25,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43971 states. [2024-10-11 05:16:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43971 to 43971. [2024-10-11 05:16:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43971 states, 43970 states have (on average 1.4251989993177165) internal successors, (62666), 43970 states have internal predecessors, (62666), 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)