./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77bdf1fd1feb16a304959a2005739d40d4ccd53f6bcac88343734528a26d2146 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:21:25,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:21:26,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:21:26,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:21:26,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:21:26,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:21:26,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:21:26,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:21:26,040 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:21:26,040 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:21:26,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:21:26,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:21:26,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:21:26,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:21:26,042 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:21:26,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:21:26,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:21:26,045 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:21:26,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:21:26,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:21:26,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:21:26,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:21:26,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:21:26,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:21:26,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:21:26,051 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:21:26,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:21:26,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:21:26,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:21:26,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:21:26,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:21:26,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:21:26,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:21:26,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:21:26,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:21:26,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:21:26,054 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:21:26,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:21:26,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:21:26,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:21:26,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:21:26,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:21:26,057 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bdf1fd1feb16a304959a2005739d40d4ccd53f6bcac88343734528a26d2146 [2024-10-24 01:21:26,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:21:26,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:21:26,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:21:26,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:21:26,332 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:21:26,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c [2024-10-24 01:21:27,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:21:28,106 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:21:28,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c [2024-10-24 01:21:28,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50f35b21/ec50e688d92147e6b5d95de4a5400d6e/FLAG369c0e290 [2024-10-24 01:21:28,153 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b50f35b21/ec50e688d92147e6b5d95de4a5400d6e [2024-10-24 01:21:28,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:21:28,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:21:28,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:21:28,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:21:28,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:21:28,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:28,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b59f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28, skipping insertion in model container [2024-10-24 01:21:28,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:28,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:21:28,683 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c[60917,60930] [2024-10-24 01:21:28,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:21:28,706 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:21:28,812 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.2.ufo.BOUNDED-10.pals.c[60917,60930] [2024-10-24 01:21:28,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:21:28,836 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:21:28,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28 WrapperNode [2024-10-24 01:21:28,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:21:28,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:21:28,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:21:28,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:21:28,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:28,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:28,957 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2050 [2024-10-24 01:21:28,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:21:28,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:21:28,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:21:28,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:21:28,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:28,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:28,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,024 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]. [2024-10-24 01:21:29,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:21:29,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:21:29,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:21:29,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:21:29,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (1/1) ... [2024-10-24 01:21:29,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:21:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:21:29,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:21:29,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:21:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:21:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:21:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:21:29,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:21:29,368 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:21:29,369 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:21:31,231 INFO L? ?]: Removed 235 outVars from TransFormulas that were not future-live. [2024-10-24 01:21:31,232 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:21:31,314 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:21:31,315 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 01:21:31,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:21:31 BoogieIcfgContainer [2024-10-24 01:21:31,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:21:31,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:21:31,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:21:31,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:21:31,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:21:28" (1/3) ... [2024-10-24 01:21:31,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b5499d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:21:31, skipping insertion in model container [2024-10-24 01:21:31,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:21:28" (2/3) ... [2024-10-24 01:21:31,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59b5499d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:21:31, skipping insertion in model container [2024-10-24 01:21:31,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:21:31" (3/3) ... [2024-10-24 01:21:31,329 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.BOUNDED-10.pals.c [2024-10-24 01:21:31,343 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:21:31,344 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:21:31,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:21:31,432 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;@1e81f83b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:21:31,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:21:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 661 states, 659 states have (on average 1.8786039453717753) internal successors, (1238), 660 states have internal predecessors, (1238), 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) [2024-10-24 01:21:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 01:21:31,464 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:31,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:31,465 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:31,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:31,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1749920930, now seen corresponding path program 1 times [2024-10-24 01:21:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:31,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111173070] [2024-10-24 01:21:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:32,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111173070] [2024-10-24 01:21:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111173070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:32,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:32,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 01:21:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068434216] [2024-10-24 01:21:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:32,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 01:21:32,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:32,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 01:21:32,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 01:21:32,310 INFO L87 Difference]: Start difference. First operand has 661 states, 659 states have (on average 1.8786039453717753) internal successors, (1238), 660 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2024-10-24 01:21:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:32,429 INFO L93 Difference]: Finished difference Result 779 states and 1452 transitions. [2024-10-24 01:21:32,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 01:21:32,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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 150 [2024-10-24 01:21:32,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:32,464 INFO L225 Difference]: With dead ends: 779 [2024-10-24 01:21:32,466 INFO L226 Difference]: Without dead ends: 659 [2024-10-24 01:21:32,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 01:21:32,473 INFO L432 NwaCegarLoop]: 1231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:32,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1231 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-10-24 01:21:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-10-24 01:21:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.8738601823708207) internal successors, (1233), 658 states have internal predecessors, (1233), 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) [2024-10-24 01:21:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1233 transitions. [2024-10-24 01:21:32,573 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1233 transitions. Word has length 150 [2024-10-24 01:21:32,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:32,574 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1233 transitions. [2024-10-24 01:21:32,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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) [2024-10-24 01:21:32,574 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1233 transitions. [2024-10-24 01:21:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-24 01:21:32,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:32,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:32,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:21:32,585 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:32,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash -621818332, now seen corresponding path program 1 times [2024-10-24 01:21:32,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:32,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414005545] [2024-10-24 01:21:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:32,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:33,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:33,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414005545] [2024-10-24 01:21:33,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414005545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:33,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:33,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:21:33,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594446714] [2024-10-24 01:21:33,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:33,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:21:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:33,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:21:33,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:21:33,117 INFO L87 Difference]: Start difference. First operand 659 states and 1233 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2024-10-24 01:21:33,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:33,291 INFO L93 Difference]: Finished difference Result 777 states and 1445 transitions. [2024-10-24 01:21:33,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:21:33,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 150 [2024-10-24 01:21:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:33,298 INFO L225 Difference]: With dead ends: 777 [2024-10-24 01:21:33,300 INFO L226 Difference]: Without dead ends: 659 [2024-10-24 01:21:33,302 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 [2024-10-24 01:21:33,303 INFO L432 NwaCegarLoop]: 1230 mSDtfsCounter, 0 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:33,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3627 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:21:33,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-10-24 01:21:33,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-10-24 01:21:33,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.7826747720364742) internal successors, (1173), 658 states have internal predecessors, (1173), 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) [2024-10-24 01:21:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1173 transitions. [2024-10-24 01:21:33,330 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1173 transitions. Word has length 150 [2024-10-24 01:21:33,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:33,330 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1173 transitions. [2024-10-24 01:21:33,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2024-10-24 01:21:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1173 transitions. [2024-10-24 01:21:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-24 01:21:33,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:33,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:33,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:21:33,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:33,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:33,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1957353913, now seen corresponding path program 1 times [2024-10-24 01:21:33,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:33,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274080085] [2024-10-24 01:21:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:33,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:33,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274080085] [2024-10-24 01:21:33,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274080085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:33,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:33,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:33,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558115319] [2024-10-24 01:21:33,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:33,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:33,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:33,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:33,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:33,675 INFO L87 Difference]: Start difference. First operand 659 states and 1173 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2024-10-24 01:21:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:33,770 INFO L93 Difference]: Finished difference Result 876 states and 1566 transitions. [2024-10-24 01:21:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:33,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 209 [2024-10-24 01:21:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:33,777 INFO L225 Difference]: With dead ends: 876 [2024-10-24 01:21:33,777 INFO L226 Difference]: Without dead ends: 761 [2024-10-24 01:21:33,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:33,781 INFO L432 NwaCegarLoop]: 1169 mSDtfsCounter, 176 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:33,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2279 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:21:33,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-10-24 01:21:33,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2024-10-24 01:21:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 758 states have (on average 1.7823218997361479) internal successors, (1351), 758 states have internal predecessors, (1351), 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) [2024-10-24 01:21:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1351 transitions. [2024-10-24 01:21:33,806 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1351 transitions. Word has length 209 [2024-10-24 01:21:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:33,807 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 1351 transitions. [2024-10-24 01:21:33,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2024-10-24 01:21:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1351 transitions. [2024-10-24 01:21:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-24 01:21:33,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:33,811 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:33,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:21:33,812 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:33,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:33,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1276000645, now seen corresponding path program 1 times [2024-10-24 01:21:33,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:33,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528869693] [2024-10-24 01:21:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:33,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:34,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:34,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528869693] [2024-10-24 01:21:34,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528869693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:34,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:34,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:34,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603379460] [2024-10-24 01:21:34,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:34,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:34,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:34,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:34,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:34,103 INFO L87 Difference]: Start difference. First operand 759 states and 1351 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2024-10-24 01:21:34,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:34,155 INFO L93 Difference]: Finished difference Result 1167 states and 2083 transitions. [2024-10-24 01:21:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:34,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 213 [2024-10-24 01:21:34,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:34,160 INFO L225 Difference]: With dead ends: 1167 [2024-10-24 01:21:34,160 INFO L226 Difference]: Without dead ends: 952 [2024-10-24 01:21:34,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:34,163 INFO L432 NwaCegarLoop]: 1168 mSDtfsCounter, 176 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:34,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2287 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-10-24 01:21:34,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 950. [2024-10-24 01:21:34,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 1.7839831401475237) internal successors, (1693), 949 states have internal predecessors, (1693), 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) [2024-10-24 01:21:34,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1693 transitions. [2024-10-24 01:21:34,187 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1693 transitions. Word has length 213 [2024-10-24 01:21:34,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:34,188 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1693 transitions. [2024-10-24 01:21:34,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2024-10-24 01:21:34,188 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1693 transitions. [2024-10-24 01:21:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-10-24 01:21:34,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:34,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:34,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:21:34,192 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:34,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash -352904147, now seen corresponding path program 1 times [2024-10-24 01:21:34,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:34,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806762325] [2024-10-24 01:21:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:34,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:34,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:34,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:34,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806762325] [2024-10-24 01:21:34,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806762325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:34,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:34,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:34,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457700103] [2024-10-24 01:21:34,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:34,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:34,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:34,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:34,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:34,473 INFO L87 Difference]: Start difference. First operand 950 states and 1693 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-10-24 01:21:34,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:34,527 INFO L93 Difference]: Finished difference Result 1718 states and 3067 transitions. [2024-10-24 01:21:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 217 [2024-10-24 01:21:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:34,533 INFO L225 Difference]: With dead ends: 1718 [2024-10-24 01:21:34,533 INFO L226 Difference]: Without dead ends: 1312 [2024-10-24 01:21:34,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:34,535 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 168 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2393 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 [2024-10-24 01:21:34,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 2393 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:34,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-10-24 01:21:34,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1310. [2024-10-24 01:21:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1309 states have (on average 1.7822765469824293) internal successors, (2333), 1309 states have internal predecessors, (2333), 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) [2024-10-24 01:21:34,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2333 transitions. [2024-10-24 01:21:34,569 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2333 transitions. Word has length 217 [2024-10-24 01:21:34,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:34,570 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 2333 transitions. [2024-10-24 01:21:34,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-10-24 01:21:34,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2333 transitions. [2024-10-24 01:21:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-10-24 01:21:34,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:34,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:34,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:21:34,574 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:34,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2064663316, now seen corresponding path program 1 times [2024-10-24 01:21:34,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:34,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343109298] [2024-10-24 01:21:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:34,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:34,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343109298] [2024-10-24 01:21:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343109298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:34,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:34,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:34,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547086910] [2024-10-24 01:21:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:34,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:34,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:34,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:34,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:34,914 INFO L87 Difference]: Start difference. First operand 1310 states and 2333 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-10-24 01:21:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:34,977 INFO L93 Difference]: Finished difference Result 2119 states and 3777 transitions. [2024-10-24 01:21:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:34,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 221 [2024-10-24 01:21:34,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:34,988 INFO L225 Difference]: With dead ends: 2119 [2024-10-24 01:21:34,989 INFO L226 Difference]: Without dead ends: 1713 [2024-10-24 01:21:34,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:34,991 INFO L432 NwaCegarLoop]: 1274 mSDtfsCounter, 169 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:34,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2425 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2024-10-24 01:21:35,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1711. [2024-10-24 01:21:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1710 states have (on average 1.7771929824561403) internal successors, (3039), 1710 states have internal predecessors, (3039), 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) [2024-10-24 01:21:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 3039 transitions. [2024-10-24 01:21:35,039 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 3039 transitions. Word has length 221 [2024-10-24 01:21:35,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:35,041 INFO L471 AbstractCegarLoop]: Abstraction has 1711 states and 3039 transitions. [2024-10-24 01:21:35,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-10-24 01:21:35,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 3039 transitions. [2024-10-24 01:21:35,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-10-24 01:21:35,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:35,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:35,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:21:35,045 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:35,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2134272735, now seen corresponding path program 1 times [2024-10-24 01:21:35,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:35,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94425215] [2024-10-24 01:21:35,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:35,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:35,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:35,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94425215] [2024-10-24 01:21:35,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94425215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:35,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:35,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:35,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494368047] [2024-10-24 01:21:35,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:35,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:35,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:35,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:35,358 INFO L87 Difference]: Start difference. First operand 1711 states and 3039 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-10-24 01:21:35,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:35,421 INFO L93 Difference]: Finished difference Result 3783 states and 6717 transitions. [2024-10-24 01:21:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:35,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 221 [2024-10-24 01:21:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:35,432 INFO L225 Difference]: With dead ends: 3783 [2024-10-24 01:21:35,432 INFO L226 Difference]: Without dead ends: 2681 [2024-10-24 01:21:35,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:35,435 INFO L432 NwaCegarLoop]: 1169 mSDtfsCounter, 160 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:35,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2290 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2024-10-24 01:21:35,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2679. [2024-10-24 01:21:35,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 2678 states have (on average 1.7696041822255415) internal successors, (4739), 2678 states have internal predecessors, (4739), 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) [2024-10-24 01:21:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 4739 transitions. [2024-10-24 01:21:35,497 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 4739 transitions. Word has length 221 [2024-10-24 01:21:35,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:35,498 INFO L471 AbstractCegarLoop]: Abstraction has 2679 states and 4739 transitions. [2024-10-24 01:21:35,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2024-10-24 01:21:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 4739 transitions. [2024-10-24 01:21:35,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-24 01:21:35,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:35,502 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:35,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:21:35,502 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:35,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:35,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2022555757, now seen corresponding path program 1 times [2024-10-24 01:21:35,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:35,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476712210] [2024-10-24 01:21:35,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:35,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:35,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476712210] [2024-10-24 01:21:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476712210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:35,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:35,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:35,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444424934] [2024-10-24 01:21:35,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:35,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:35,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:35,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:35,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:35,742 INFO L87 Difference]: Start difference. First operand 2679 states and 4739 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-10-24 01:21:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:35,844 INFO L93 Difference]: Finished difference Result 6555 states and 11565 transitions. [2024-10-24 01:21:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:35,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 225 [2024-10-24 01:21:35,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:35,862 INFO L225 Difference]: With dead ends: 6555 [2024-10-24 01:21:35,863 INFO L226 Difference]: Without dead ends: 4485 [2024-10-24 01:21:35,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:35,869 INFO L432 NwaCegarLoop]: 1169 mSDtfsCounter, 152 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:35,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 2291 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:35,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2024-10-24 01:21:35,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 4483. [2024-10-24 01:21:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4482 states have (on average 1.7570281124497993) internal successors, (7875), 4482 states have internal predecessors, (7875), 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) [2024-10-24 01:21:35,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 7875 transitions. [2024-10-24 01:21:35,982 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 7875 transitions. Word has length 225 [2024-10-24 01:21:35,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:35,983 INFO L471 AbstractCegarLoop]: Abstraction has 4483 states and 7875 transitions. [2024-10-24 01:21:35,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-10-24 01:21:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 7875 transitions. [2024-10-24 01:21:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-10-24 01:21:35,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:35,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:35,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:21:35,987 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:35,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1471489479, now seen corresponding path program 1 times [2024-10-24 01:21:35,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:35,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370975394] [2024-10-24 01:21:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:35,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:36,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:36,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370975394] [2024-10-24 01:21:36,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370975394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:36,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:36,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:21:36,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812049524] [2024-10-24 01:21:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:36,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:21:36,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:36,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:21:36,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:21:36,452 INFO L87 Difference]: Start difference. First operand 4483 states and 7875 transitions. Second operand has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 states have internal predecessors, (229), 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) [2024-10-24 01:21:37,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:37,109 INFO L93 Difference]: Finished difference Result 27937 states and 49494 transitions. [2024-10-24 01:21:37,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 01:21:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 states have internal predecessors, (229), 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 229 [2024-10-24 01:21:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:37,203 INFO L225 Difference]: With dead ends: 27937 [2024-10-24 01:21:37,203 INFO L226 Difference]: Without dead ends: 24063 [2024-10-24 01:21:37,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:21:37,219 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 3168 mSDsluCounter, 7089 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3168 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:37,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3168 Valid, 8247 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:21:37,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24063 states. [2024-10-24 01:21:37,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24063 to 8234. [2024-10-24 01:21:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8234 states, 8233 states have (on average 1.7539171626381636) internal successors, (14440), 8233 states have internal predecessors, (14440), 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) [2024-10-24 01:21:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8234 states to 8234 states and 14440 transitions. [2024-10-24 01:21:37,625 INFO L78 Accepts]: Start accepts. Automaton has 8234 states and 14440 transitions. Word has length 229 [2024-10-24 01:21:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:37,626 INFO L471 AbstractCegarLoop]: Abstraction has 8234 states and 14440 transitions. [2024-10-24 01:21:37,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 7 states have internal predecessors, (229), 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) [2024-10-24 01:21:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8234 states and 14440 transitions. [2024-10-24 01:21:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-24 01:21:37,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:37,632 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:21:37,633 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:37,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1702209156, now seen corresponding path program 1 times [2024-10-24 01:21:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962146413] [2024-10-24 01:21:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:37,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:37,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962146413] [2024-10-24 01:21:37,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962146413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:37,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:37,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:21:37,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352537952] [2024-10-24 01:21:37,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:37,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:21:37,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:21:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:21:37,982 INFO L87 Difference]: Start difference. First operand 8234 states and 14440 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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) [2024-10-24 01:21:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:38,214 INFO L93 Difference]: Finished difference Result 24096 states and 42515 transitions. [2024-10-24 01:21:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:21:38,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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 230 [2024-10-24 01:21:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:38,266 INFO L225 Difference]: With dead ends: 24096 [2024-10-24 01:21:38,266 INFO L226 Difference]: Without dead ends: 16498 [2024-10-24 01:21:38,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:21:38,284 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 592 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:38,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 3507 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:21:38,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16498 states. [2024-10-24 01:21:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16498 to 12329. [2024-10-24 01:21:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12329 states, 12328 states have (on average 1.7558403634003894) internal successors, (21646), 12328 states have internal predecessors, (21646), 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) [2024-10-24 01:21:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12329 states to 12329 states and 21646 transitions. [2024-10-24 01:21:38,719 INFO L78 Accepts]: Start accepts. Automaton has 12329 states and 21646 transitions. Word has length 230 [2024-10-24 01:21:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:38,720 INFO L471 AbstractCegarLoop]: Abstraction has 12329 states and 21646 transitions. [2024-10-24 01:21:38,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 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) [2024-10-24 01:21:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 12329 states and 21646 transitions. [2024-10-24 01:21:38,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-24 01:21:38,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:38,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:38,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:21:38,726 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:38,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1233427544, now seen corresponding path program 1 times [2024-10-24 01:21:38,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:38,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446636400] [2024-10-24 01:21:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:38,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:38,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:38,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446636400] [2024-10-24 01:21:38,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446636400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:38,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:38,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:38,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680296222] [2024-10-24 01:21:38,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:38,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:38,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:38,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:38,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:38,967 INFO L87 Difference]: Start difference. First operand 12329 states and 21646 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:39,212 INFO L93 Difference]: Finished difference Result 23981 states and 42124 transitions. [2024-10-24 01:21:39,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:39,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 230 [2024-10-24 01:21:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:39,252 INFO L225 Difference]: With dead ends: 23981 [2024-10-24 01:21:39,253 INFO L226 Difference]: Without dead ends: 17691 [2024-10-24 01:21:39,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:39,265 INFO L432 NwaCegarLoop]: 1228 mSDtfsCounter, 153 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:39,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 2381 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17691 states. [2024-10-24 01:21:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17691 to 17689. [2024-10-24 01:21:39,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17689 states, 17688 states have (on average 1.7464947987336048) internal successors, (30892), 17688 states have internal predecessors, (30892), 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) [2024-10-24 01:21:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17689 states to 17689 states and 30892 transitions. [2024-10-24 01:21:39,792 INFO L78 Accepts]: Start accepts. Automaton has 17689 states and 30892 transitions. Word has length 230 [2024-10-24 01:21:39,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:39,793 INFO L471 AbstractCegarLoop]: Abstraction has 17689 states and 30892 transitions. [2024-10-24 01:21:39,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:39,794 INFO L276 IsEmpty]: Start isEmpty. Operand 17689 states and 30892 transitions. [2024-10-24 01:21:39,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-24 01:21:39,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:39,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:39,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:21:39,799 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:39,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:39,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2019203500, now seen corresponding path program 1 times [2024-10-24 01:21:39,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:39,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146104294] [2024-10-24 01:21:39,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:39,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:40,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146104294] [2024-10-24 01:21:40,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146104294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:40,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:40,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654659642] [2024-10-24 01:21:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:40,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:40,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:40,080 INFO L87 Difference]: Start difference. First operand 17689 states and 30892 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:40,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:40,399 INFO L93 Difference]: Finished difference Result 33893 states and 59262 transitions. [2024-10-24 01:21:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:40,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 230 [2024-10-24 01:21:40,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:40,461 INFO L225 Difference]: With dead ends: 33893 [2024-10-24 01:21:40,461 INFO L226 Difference]: Without dead ends: 24737 [2024-10-24 01:21:40,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:40,627 INFO L432 NwaCegarLoop]: 1262 mSDtfsCounter, 161 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:40,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2414 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:40,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24737 states. [2024-10-24 01:21:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24737 to 24735. [2024-10-24 01:21:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24735 states, 24734 states have (on average 1.738255033557047) internal successors, (42994), 24734 states have internal predecessors, (42994), 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) [2024-10-24 01:21:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24735 states to 24735 states and 42994 transitions. [2024-10-24 01:21:41,301 INFO L78 Accepts]: Start accepts. Automaton has 24735 states and 42994 transitions. Word has length 230 [2024-10-24 01:21:41,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:41,302 INFO L471 AbstractCegarLoop]: Abstraction has 24735 states and 42994 transitions. [2024-10-24 01:21:41,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 24735 states and 42994 transitions. [2024-10-24 01:21:41,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-24 01:21:41,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:41,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:41,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:21:41,306 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:41,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1103356626, now seen corresponding path program 1 times [2024-10-24 01:21:41,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:41,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839195148] [2024-10-24 01:21:41,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:41,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:41,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:41,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839195148] [2024-10-24 01:21:41,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839195148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:41,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:41,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:41,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948032014] [2024-10-24 01:21:41,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:41,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:41,509 INFO L87 Difference]: Start difference. First operand 24735 states and 42994 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:41,945 INFO L93 Difference]: Finished difference Result 47797 states and 83172 transitions. [2024-10-24 01:21:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 230 [2024-10-24 01:21:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:42,031 INFO L225 Difference]: With dead ends: 47797 [2024-10-24 01:21:42,032 INFO L226 Difference]: Without dead ends: 34735 [2024-10-24 01:21:42,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:42,068 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 177 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:42,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2458 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34735 states. [2024-10-24 01:21:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34735 to 34733. [2024-10-24 01:21:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34733 states, 34732 states have (on average 1.7298744673499942) internal successors, (60082), 34732 states have internal predecessors, (60082), 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) [2024-10-24 01:21:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34733 states to 34733 states and 60082 transitions. [2024-10-24 01:21:43,101 INFO L78 Accepts]: Start accepts. Automaton has 34733 states and 60082 transitions. Word has length 230 [2024-10-24 01:21:43,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:43,102 INFO L471 AbstractCegarLoop]: Abstraction has 34733 states and 60082 transitions. [2024-10-24 01:21:43,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 34733 states and 60082 transitions. [2024-10-24 01:21:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-10-24 01:21:43,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:43,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:43,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:21:43,107 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:43,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:43,108 INFO L85 PathProgramCache]: Analyzing trace with hash 181894960, now seen corresponding path program 1 times [2024-10-24 01:21:43,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:43,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494723099] [2024-10-24 01:21:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:43,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:43,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:43,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494723099] [2024-10-24 01:21:43,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494723099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:43,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:43,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:21:43,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059325292] [2024-10-24 01:21:43,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:43,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:21:43,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:43,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:21:43,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:43,551 INFO L87 Difference]: Start difference. First operand 34733 states and 60082 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:44,168 INFO L93 Difference]: Finished difference Result 77979 states and 135480 transitions. [2024-10-24 01:21:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:21:44,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 230 [2024-10-24 01:21:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:44,315 INFO L225 Difference]: With dead ends: 77979 [2024-10-24 01:21:44,315 INFO L226 Difference]: Without dead ends: 53600 [2024-10-24 01:21:44,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:21:44,364 INFO L432 NwaCegarLoop]: 1333 mSDtfsCounter, 185 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:44,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 2482 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:21:44,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53600 states. [2024-10-24 01:21:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53600 to 53598. [2024-10-24 01:21:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53598 states, 53597 states have (on average 1.7223352053286565) internal successors, (92312), 53597 states have internal predecessors, (92312), 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) [2024-10-24 01:21:45,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53598 states to 53598 states and 92312 transitions. [2024-10-24 01:21:45,943 INFO L78 Accepts]: Start accepts. Automaton has 53598 states and 92312 transitions. Word has length 230 [2024-10-24 01:21:45,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:45,943 INFO L471 AbstractCegarLoop]: Abstraction has 53598 states and 92312 transitions. [2024-10-24 01:21:45,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-10-24 01:21:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 53598 states and 92312 transitions. [2024-10-24 01:21:45,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-10-24 01:21:45,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:45,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:45,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:21:45,947 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:45,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1297167280, now seen corresponding path program 1 times [2024-10-24 01:21:45,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:45,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886599112] [2024-10-24 01:21:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:46,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:46,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886599112] [2024-10-24 01:21:46,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886599112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:46,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:46,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:21:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027213671] [2024-10-24 01:21:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:46,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:21:46,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:46,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:21:46,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:21:46,469 INFO L87 Difference]: Start difference. First operand 53598 states and 92312 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2024-10-24 01:21:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:47,836 INFO L93 Difference]: Finished difference Result 177724 states and 306490 transitions. [2024-10-24 01:21:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:21:47,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231 [2024-10-24 01:21:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:48,194 INFO L225 Difference]: With dead ends: 177724 [2024-10-24 01:21:48,195 INFO L226 Difference]: Without dead ends: 124704 [2024-10-24 01:21:48,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:21:48,283 INFO L432 NwaCegarLoop]: 1159 mSDtfsCounter, 590 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:48,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 3642 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:21:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124704 states. [2024-10-24 01:21:50,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124704 to 88882. [2024-10-24 01:21:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88882 states, 88881 states have (on average 1.7148321913569828) internal successors, (152416), 88881 states have internal predecessors, (152416), 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) [2024-10-24 01:21:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88882 states to 88882 states and 152416 transitions. [2024-10-24 01:21:50,536 INFO L78 Accepts]: Start accepts. Automaton has 88882 states and 152416 transitions. Word has length 231 [2024-10-24 01:21:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:50,536 INFO L471 AbstractCegarLoop]: Abstraction has 88882 states and 152416 transitions. [2024-10-24 01:21:50,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2024-10-24 01:21:50,537 INFO L276 IsEmpty]: Start isEmpty. Operand 88882 states and 152416 transitions. [2024-10-24 01:21:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-10-24 01:21:50,540 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:50,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:50,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:21:50,540 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:50,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1620319259, now seen corresponding path program 1 times [2024-10-24 01:21:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:50,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639295522] [2024-10-24 01:21:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:50,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:50,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:50,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639295522] [2024-10-24 01:21:50,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639295522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:50,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:50,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:21:50,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943157007] [2024-10-24 01:21:50,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:50,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:21:50,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:50,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:21:50,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:21:50,905 INFO L87 Difference]: Start difference. First operand 88882 states and 152416 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2024-10-24 01:21:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:21:53,240 INFO L93 Difference]: Finished difference Result 294928 states and 506446 transitions. [2024-10-24 01:21:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:21:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232 [2024-10-24 01:21:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:21:53,723 INFO L225 Difference]: With dead ends: 294928 [2024-10-24 01:21:53,724 INFO L226 Difference]: Without dead ends: 206624 [2024-10-24 01:21:53,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:21:53,809 INFO L432 NwaCegarLoop]: 1166 mSDtfsCounter, 588 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:21:53,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 3651 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:21:53,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206624 states. [2024-10-24 01:21:56,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206624 to 147310. [2024-10-24 01:21:57,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147310 states, 147309 states have (on average 1.7074584716480323) internal successors, (251524), 147309 states have internal predecessors, (251524), 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) [2024-10-24 01:21:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147310 states to 147310 states and 251524 transitions. [2024-10-24 01:21:57,525 INFO L78 Accepts]: Start accepts. Automaton has 147310 states and 251524 transitions. Word has length 232 [2024-10-24 01:21:57,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:21:57,526 INFO L471 AbstractCegarLoop]: Abstraction has 147310 states and 251524 transitions. [2024-10-24 01:21:57,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2024-10-24 01:21:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 147310 states and 251524 transitions. [2024-10-24 01:21:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-10-24 01:21:57,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:21:57,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:21:57,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:21:57,529 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:21:57,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:21:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1252323033, now seen corresponding path program 1 times [2024-10-24 01:21:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:21:57,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028860244] [2024-10-24 01:21:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:21:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:21:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:21:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:21:57,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:21:57,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028860244] [2024-10-24 01:21:57,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028860244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:21:57,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:21:57,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:21:57,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313133804] [2024-10-24 01:21:57,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:21:57,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:21:57,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:21:57,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:21:57,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:21:57,815 INFO L87 Difference]: Start difference. First operand 147310 states and 251524 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-10-24 01:22:01,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:22:01,373 INFO L93 Difference]: Finished difference Result 487596 states and 833778 transitions. [2024-10-24 01:22:01,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:22:01,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 233 [2024-10-24 01:22:01,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:22:02,022 INFO L225 Difference]: With dead ends: 487596 [2024-10-24 01:22:02,023 INFO L226 Difference]: Without dead ends: 340864 [2024-10-24 01:22:02,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:22:02,151 INFO L432 NwaCegarLoop]: 1159 mSDtfsCounter, 586 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 3646 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:22:02,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 3646 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:22:02,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340864 states. [2024-10-24 01:22:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340864 to 243362. [2024-10-24 01:22:07,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243362 states, 243361 states have (on average 1.7002724347779636) internal successors, (413780), 243361 states have internal predecessors, (413780), 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) [2024-10-24 01:22:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243362 states to 243362 states and 413780 transitions. [2024-10-24 01:22:08,708 INFO L78 Accepts]: Start accepts. Automaton has 243362 states and 413780 transitions. Word has length 233 [2024-10-24 01:22:08,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:22:08,709 INFO L471 AbstractCegarLoop]: Abstraction has 243362 states and 413780 transitions. [2024-10-24 01:22:08,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-10-24 01:22:08,709 INFO L276 IsEmpty]: Start isEmpty. Operand 243362 states and 413780 transitions. [2024-10-24 01:22:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-24 01:22:08,711 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:22:08,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:22:08,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:22:08,718 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:22:08,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:22:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash 115372622, now seen corresponding path program 1 times [2024-10-24 01:22:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:22:08,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393075952] [2024-10-24 01:22:08,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:22:08,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:22:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:22:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:22:09,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:22:09,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393075952] [2024-10-24 01:22:09,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393075952] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:22:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:22:09,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:22:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377240154] [2024-10-24 01:22:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:22:09,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:22:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:22:09,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:22:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:22:09,013 INFO L87 Difference]: Start difference. First operand 243362 states and 413780 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2024-10-24 01:22:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:22:14,319 INFO L93 Difference]: Finished difference Result 799968 states and 1362326 transitions. [2024-10-24 01:22:14,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:22:14,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 234 [2024-10-24 01:22:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:22:15,607 INFO L225 Difference]: With dead ends: 799968 [2024-10-24 01:22:15,608 INFO L226 Difference]: Without dead ends: 557184 [2024-10-24 01:22:16,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:22:16,416 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 584 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:22:16,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 3629 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:22:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557184 states.