./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label22.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 a5646bd4d96b8fcc9e551b79d403a795dc3f85c7ce3ca7ca69beb4234714a055 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:32:24,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:32:24,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:32:24,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:32:24,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:32:24,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:32:24,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:32:24,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:32:24,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:32:24,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:32:24,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:32:24,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:32:24,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:32:24,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:32:24,956 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:32:24,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:32:24,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:32:24,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:32:24,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:32:24,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:32:24,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:32:24,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:32:24,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:32:24,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:32:24,960 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:32:24,960 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:32:24,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:32:24,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:32:24,961 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:32:24,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:32:24,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:32:24,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:32:24,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:32:24,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:32:24,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:32:24,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:32:24,962 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:32:24,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:32:24,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:32:24,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:32:24,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:32:24,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:32:24,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5646bd4d96b8fcc9e551b79d403a795dc3f85c7ce3ca7ca69beb4234714a055 [2024-11-09 19:32:25,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:32:25,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:32:25,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:32:25,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:32:25,157 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:32:25,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label22.c [2024-11-09 19:32:26,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:32:26,881 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:32:26,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label22.c [2024-11-09 19:32:26,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797cba21f/46a9329e5f4947ec8280dd4134bf65ab/FLAG900667602 [2024-11-09 19:32:27,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797cba21f/46a9329e5f4947ec8280dd4134bf65ab [2024-11-09 19:32:27,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:32:27,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:32:27,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:32:27,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:32:27,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:32:27,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:32:27" (1/1) ... [2024-11-09 19:32:27,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67691d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:27, skipping insertion in model container [2024-11-09 19:32:27,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:32:27" (1/1) ... [2024-11-09 19:32:27,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:32:27,414 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label22.c[4777,4790] [2024-11-09 19:32:28,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:32:28,078 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:32:28,097 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label22.c[4777,4790] [2024-11-09 19:32:28,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:32:28,477 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:32:28,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28 WrapperNode [2024-11-09 19:32:28,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:32:28,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:32:28,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:32:28,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:32:28,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:28,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,081 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-09 19:32:29,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:32:29,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:32:29,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:32:29,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:32:29,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,428 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:32:29,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,557 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:32:29,765 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:32:29,765 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:32:29,766 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:32:29,767 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (1/1) ... [2024-11-09 19:32:29,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:32:29,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:32:29,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:32:29,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:32:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:32:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:32:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:32:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:32:29,906 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:32:29,908 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:32:34,736 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-09 19:32:34,737 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:32:34,737 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:32:35,145 INFO L? ?]: Removed 2111 outVars from TransFormulas that were not future-live. [2024-11-09 19:32:35,146 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:32:35,193 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:32:35,194 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:32:35,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:32:35 BoogieIcfgContainer [2024-11-09 19:32:35,194 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:32:35,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:32:35,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:32:35,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:32:35,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:32:27" (1/3) ... [2024-11-09 19:32:35,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da287ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:32:35, skipping insertion in model container [2024-11-09 19:32:35,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:32:28" (2/3) ... [2024-11-09 19:32:35,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da287ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:32:35, skipping insertion in model container [2024-11-09 19:32:35,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:32:35" (3/3) ... [2024-11-09 19:32:35,208 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label22.c [2024-11-09 19:32:35,241 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:32:35,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:32:35,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:32:35,330 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;@7e2e2f31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:32:35,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:32:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:35,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 19:32:35,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:32:35,344 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] [2024-11-09 19:32:35,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:32:35,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:32:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1704329135, now seen corresponding path program 1 times [2024-11-09 19:32:35,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:32:35,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047457087] [2024-11-09 19:32:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:32:35,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:32:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:32:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:32:35,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:32:35,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047457087] [2024-11-09 19:32:35,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047457087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:32:35,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:32:35,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:32:35,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784402326] [2024-11-09 19:32:35,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:32:35,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:32:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:32:35,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:32:35,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:35,678 INFO L87 Difference]: Start difference. First operand has 1101 states, 1099 states have (on average 2.4767970882620562) internal successors, (2722), 1100 states have internal predecessors, (2722), 0 states have call successors, (0), 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 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:40,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:32:40,907 INFO L93 Difference]: Finished difference Result 3127 states and 7958 transitions. [2024-11-09 19:32:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:32:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2024-11-09 19:32:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:32:40,938 INFO L225 Difference]: With dead ends: 3127 [2024-11-09 19:32:40,938 INFO L226 Difference]: Without dead ends: 1947 [2024-11-09 19:32:40,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:40,950 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1673 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 4556 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 5133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 4556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:32:40,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 575 Invalid, 5133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 4556 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-09 19:32:40,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-11-09 19:32:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1876. [2024-11-09 19:32:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1875 states have (on average 2.5018666666666665) internal successors, (4691), 1875 states have internal predecessors, (4691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 4691 transitions. [2024-11-09 19:32:41,074 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 4691 transitions. Word has length 34 [2024-11-09 19:32:41,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:32:41,075 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 4691 transitions. [2024-11-09 19:32:41,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:41,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 4691 transitions. [2024-11-09 19:32:41,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 19:32:41,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:32:41,079 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:32:41,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:32:41,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:32:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:32:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 141018537, now seen corresponding path program 1 times [2024-11-09 19:32:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:32:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146662586] [2024-11-09 19:32:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:32:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:32:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:32:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:32:41,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:32:41,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146662586] [2024-11-09 19:32:41,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146662586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:32:41,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:32:41,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:32:41,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519335600] [2024-11-09 19:32:41,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:32:41,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:32:41,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:32:41,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:32:41,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:41,391 INFO L87 Difference]: Start difference. First operand 1876 states and 4691 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:32:45,381 INFO L93 Difference]: Finished difference Result 4611 states and 11551 transitions. [2024-11-09 19:32:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:32:45,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-09 19:32:45,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:32:45,392 INFO L225 Difference]: With dead ends: 4611 [2024-11-09 19:32:45,392 INFO L226 Difference]: Without dead ends: 2737 [2024-11-09 19:32:45,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:45,396 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1531 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 4612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 4448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:32:45,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 742 Invalid, 4612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 4448 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:32:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-11-09 19:32:45,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2674. [2024-11-09 19:32:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 2.460531238309016) internal successors, (6577), 2673 states have internal predecessors, (6577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 6577 transitions. [2024-11-09 19:32:45,435 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 6577 transitions. Word has length 100 [2024-11-09 19:32:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:32:45,435 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 6577 transitions. [2024-11-09 19:32:45,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:45,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 6577 transitions. [2024-11-09 19:32:45,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 19:32:45,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:32:45,441 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:32:45,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:32:45,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:32:45,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:32:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash 367086819, now seen corresponding path program 1 times [2024-11-09 19:32:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:32:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157057069] [2024-11-09 19:32:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:32:45,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:32:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:32:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:32:45,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:32:45,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157057069] [2024-11-09 19:32:45,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157057069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:32:45,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:32:45,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:32:45,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332211550] [2024-11-09 19:32:45,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:32:45,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:32:45,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:32:45,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:32:45,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:45,570 INFO L87 Difference]: Start difference. First operand 2674 states and 6577 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:32:49,499 INFO L93 Difference]: Finished difference Result 7757 states and 19349 transitions. [2024-11-09 19:32:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:32:49,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-11-09 19:32:49,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:32:49,516 INFO L225 Difference]: With dead ends: 7757 [2024-11-09 19:32:49,518 INFO L226 Difference]: Without dead ends: 5085 [2024-11-09 19:32:49,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:49,525 INFO L432 NwaCegarLoop]: 1034 mSDtfsCounter, 1531 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 3935 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 4715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 3935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:32:49,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1185 Invalid, 4715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 3935 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 19:32:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5085 states. [2024-11-09 19:32:49,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5085 to 5067. [2024-11-09 19:32:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5067 states, 5066 states have (on average 2.2763521515988945) internal successors, (11532), 5066 states have internal predecessors, (11532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 11532 transitions. [2024-11-09 19:32:49,604 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 11532 transitions. Word has length 101 [2024-11-09 19:32:49,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:32:49,607 INFO L471 AbstractCegarLoop]: Abstraction has 5067 states and 11532 transitions. [2024-11-09 19:32:49,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 11532 transitions. [2024-11-09 19:32:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 19:32:49,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:32:49,609 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:32:49,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:32:49,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:32:49,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:32:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1859963560, now seen corresponding path program 1 times [2024-11-09 19:32:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:32:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878051082] [2024-11-09 19:32:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:32:49,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:32:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:32:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:32:49,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:32:49,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878051082] [2024-11-09 19:32:49,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878051082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:32:49,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:32:49,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:32:49,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685896978] [2024-11-09 19:32:49,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:32:49,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:32:49,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:32:50,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:32:50,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:32:50,000 INFO L87 Difference]: Start difference. First operand 5067 states and 11532 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:56,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:32:56,683 INFO L93 Difference]: Finished difference Result 12518 states and 28797 transitions. [2024-11-09 19:32:56,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:32:56,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-09 19:32:56,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:32:56,708 INFO L225 Difference]: With dead ends: 12518 [2024-11-09 19:32:56,708 INFO L226 Difference]: Without dead ends: 7453 [2024-11-09 19:32:56,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:32:56,715 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 4742 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 6271 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 7132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 6271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:32:56,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 1010 Invalid, 7132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 6271 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 19:32:56,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2024-11-09 19:32:56,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 7452. [2024-11-09 19:32:56,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7451 states have (on average 2.206817876795061) internal successors, (16443), 7451 states have internal predecessors, (16443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 16443 transitions. [2024-11-09 19:32:56,870 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 16443 transitions. Word has length 121 [2024-11-09 19:32:56,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:32:56,870 INFO L471 AbstractCegarLoop]: Abstraction has 7452 states and 16443 transitions. [2024-11-09 19:32:56,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:32:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 16443 transitions. [2024-11-09 19:32:56,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 19:32:56,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:32:56,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:32:56,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:32:56,873 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:32:56,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:32:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash -645170176, now seen corresponding path program 1 times [2024-11-09 19:32:56,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:32:56,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907265256] [2024-11-09 19:32:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:32:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:32:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:32:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:32:57,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:32:57,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907265256] [2024-11-09 19:32:57,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907265256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:32:57,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:32:57,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:32:57,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264895087] [2024-11-09 19:32:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:32:57,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:32:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:32:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:32:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:32:57,019 INFO L87 Difference]: Start difference. First operand 7452 states and 16443 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:01,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:01,416 INFO L93 Difference]: Finished difference Result 14128 states and 31402 transitions. [2024-11-09 19:33:01,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:01,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-09 19:33:01,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:01,443 INFO L225 Difference]: With dead ends: 14128 [2024-11-09 19:33:01,444 INFO L226 Difference]: Without dead ends: 7466 [2024-11-09 19:33:01,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:01,448 INFO L432 NwaCegarLoop]: 1980 mSDtfsCounter, 1806 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 3887 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 4534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 3887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:01,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 2034 Invalid, 4534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 3887 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 19:33:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7466 states. [2024-11-09 19:33:01,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7466 to 7449. [2024-11-09 19:33:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7449 states, 7448 states have (on average 2.1749462943071967) internal successors, (16199), 7448 states have internal predecessors, (16199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7449 states to 7449 states and 16199 transitions. [2024-11-09 19:33:01,550 INFO L78 Accepts]: Start accepts. Automaton has 7449 states and 16199 transitions. Word has length 131 [2024-11-09 19:33:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:01,551 INFO L471 AbstractCegarLoop]: Abstraction has 7449 states and 16199 transitions. [2024-11-09 19:33:01,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:01,552 INFO L276 IsEmpty]: Start isEmpty. Operand 7449 states and 16199 transitions. [2024-11-09 19:33:01,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-09 19:33:01,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:01,555 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:01,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:33:01,556 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:01,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:01,556 INFO L85 PathProgramCache]: Analyzing trace with hash 280919352, now seen corresponding path program 1 times [2024-11-09 19:33:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:01,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678583836] [2024-11-09 19:33:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:01,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 19:33:01,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:01,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678583836] [2024-11-09 19:33:01,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678583836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:01,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:01,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:33:01,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640664823] [2024-11-09 19:33:01,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:01,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:01,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:01,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:01,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:01,715 INFO L87 Difference]: Start difference. First operand 7449 states and 16199 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:05,944 INFO L93 Difference]: Finished difference Result 20417 states and 45112 transitions. [2024-11-09 19:33:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 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 207 [2024-11-09 19:33:05,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:06,001 INFO L225 Difference]: With dead ends: 20417 [2024-11-09 19:33:06,002 INFO L226 Difference]: Without dead ends: 13758 [2024-11-09 19:33:06,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:06,022 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 1603 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 3739 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 4607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 3739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:06,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 989 Invalid, 4607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 3739 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:33:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13758 states. [2024-11-09 19:33:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13758 to 13757. [2024-11-09 19:33:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13757 states, 13756 states have (on average 2.1126054085489967) internal successors, (29061), 13756 states have internal predecessors, (29061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:06,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13757 states to 13757 states and 29061 transitions. [2024-11-09 19:33:06,244 INFO L78 Accepts]: Start accepts. Automaton has 13757 states and 29061 transitions. Word has length 207 [2024-11-09 19:33:06,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:06,244 INFO L471 AbstractCegarLoop]: Abstraction has 13757 states and 29061 transitions. [2024-11-09 19:33:06,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:06,244 INFO L276 IsEmpty]: Start isEmpty. Operand 13757 states and 29061 transitions. [2024-11-09 19:33:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-09 19:33:06,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:06,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:06,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:33:06,247 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:06,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash 620676222, now seen corresponding path program 1 times [2024-11-09 19:33:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:06,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742970461] [2024-11-09 19:33:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:33:06,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:06,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742970461] [2024-11-09 19:33:06,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742970461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:06,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:06,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:06,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275301353] [2024-11-09 19:33:06,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:06,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:06,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:06,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:06,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:06,358 INFO L87 Difference]: Start difference. First operand 13757 states and 29061 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:10,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:10,665 INFO L93 Difference]: Finished difference Result 33041 states and 70963 transitions. [2024-11-09 19:33:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-11-09 19:33:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:10,700 INFO L225 Difference]: With dead ends: 33041 [2024-11-09 19:33:10,701 INFO L226 Difference]: Without dead ends: 20074 [2024-11-09 19:33:10,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:10,716 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 1602 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 4675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 871 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:10,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 899 Invalid, 4675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [871 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:33:10,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20074 states. [2024-11-09 19:33:10,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20074 to 20065. [2024-11-09 19:33:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20065 states, 20064 states have (on average 2.0941487240829346) internal successors, (42017), 20064 states have internal predecessors, (42017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20065 states to 20065 states and 42017 transitions. [2024-11-09 19:33:10,926 INFO L78 Accepts]: Start accepts. Automaton has 20065 states and 42017 transitions. Word has length 214 [2024-11-09 19:33:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:10,927 INFO L471 AbstractCegarLoop]: Abstraction has 20065 states and 42017 transitions. [2024-11-09 19:33:10,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 20065 states and 42017 transitions. [2024-11-09 19:33:10,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 19:33:10,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:10,934 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:10,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:33:10,935 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:10,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1776672264, now seen corresponding path program 1 times [2024-11-09 19:33:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:10,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907310071] [2024-11-09 19:33:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:10,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-09 19:33:11,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:11,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907310071] [2024-11-09 19:33:11,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907310071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:11,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:11,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:33:11,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109279734] [2024-11-09 19:33:11,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:11,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:11,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:11,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:11,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:11,048 INFO L87 Difference]: Start difference. First operand 20065 states and 42017 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:15,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:15,502 INFO L93 Difference]: Finished difference Result 58275 states and 122592 transitions. [2024-11-09 19:33:15,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:15,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 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 227 [2024-11-09 19:33:15,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:15,554 INFO L225 Difference]: With dead ends: 58275 [2024-11-09 19:33:15,554 INFO L226 Difference]: Without dead ends: 39000 [2024-11-09 19:33:15,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:15,577 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 1619 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 4737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:15,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 926 Invalid, 4737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 3979 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-09 19:33:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39000 states. [2024-11-09 19:33:16,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39000 to 34261. [2024-11-09 19:33:16,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34261 states, 34260 states have (on average 2.059982486865149) internal successors, (70575), 34260 states have internal predecessors, (70575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34261 states to 34261 states and 70575 transitions. [2024-11-09 19:33:16,180 INFO L78 Accepts]: Start accepts. Automaton has 34261 states and 70575 transitions. Word has length 227 [2024-11-09 19:33:16,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:16,181 INFO L471 AbstractCegarLoop]: Abstraction has 34261 states and 70575 transitions. [2024-11-09 19:33:16,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand 34261 states and 70575 transitions. [2024-11-09 19:33:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-09 19:33:16,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:16,184 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:16,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:33:16,184 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:16,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:16,185 INFO L85 PathProgramCache]: Analyzing trace with hash 435868500, now seen corresponding path program 1 times [2024-11-09 19:33:16,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:16,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52638264] [2024-11-09 19:33:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-09 19:33:16,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:16,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52638264] [2024-11-09 19:33:16,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52638264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:16,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:16,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:16,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936418003] [2024-11-09 19:33:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:16,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:16,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:16,319 INFO L87 Difference]: Start difference. First operand 34261 states and 70575 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:21,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:21,032 INFO L93 Difference]: Finished difference Result 78782 states and 163889 transitions. [2024-11-09 19:33:21,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:21,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 304 [2024-11-09 19:33:21,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:21,092 INFO L225 Difference]: With dead ends: 78782 [2024-11-09 19:33:21,092 INFO L226 Difference]: Without dead ends: 45311 [2024-11-09 19:33:21,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:21,107 INFO L432 NwaCegarLoop]: 768 mSDtfsCounter, 1659 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 4747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:21,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 852 Invalid, 4747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:33:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45311 states. [2024-11-09 19:33:21,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45311 to 45299. [2024-11-09 19:33:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45299 states, 45298 states have (on average 2.066095633361296) internal successors, (93590), 45298 states have internal predecessors, (93590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:22,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45299 states to 45299 states and 93590 transitions. [2024-11-09 19:33:22,002 INFO L78 Accepts]: Start accepts. Automaton has 45299 states and 93590 transitions. Word has length 304 [2024-11-09 19:33:22,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:22,003 INFO L471 AbstractCegarLoop]: Abstraction has 45299 states and 93590 transitions. [2024-11-09 19:33:22,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:22,003 INFO L276 IsEmpty]: Start isEmpty. Operand 45299 states and 93590 transitions. [2024-11-09 19:33:22,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-09 19:33:22,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:22,010 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:22,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:33:22,010 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:22,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash -134344598, now seen corresponding path program 1 times [2024-11-09 19:33:22,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:22,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130735187] [2024-11-09 19:33:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:22,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 335 proven. 26 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 19:33:22,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:22,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130735187] [2024-11-09 19:33:22,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130735187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:33:22,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889586873] [2024-11-09 19:33:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:22,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:33:22,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:33:22,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:33:22,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:33:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:22,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:33:22,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:33:23,146 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:33:23,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:33:23,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889586873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:23,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:33:23,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:33:23,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554000868] [2024-11-09 19:33:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:23,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:23,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:33:23,148 INFO L87 Difference]: Start difference. First operand 45299 states and 93590 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:28,125 INFO L93 Difference]: Finished difference Result 100831 states and 209601 transitions. [2024-11-09 19:33:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 356 [2024-11-09 19:33:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:28,199 INFO L225 Difference]: With dead ends: 100831 [2024-11-09 19:33:28,199 INFO L226 Difference]: Without dead ends: 56322 [2024-11-09 19:33:28,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:33:28,216 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 1941 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 3700 mSolverCounterSat, 1168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 4868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1168 IncrementalHoareTripleChecker+Valid, 3700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:28,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 432 Invalid, 4868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1168 Valid, 3700 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:33:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56322 states. [2024-11-09 19:33:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56322 to 56322. [2024-11-09 19:33:29,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56322 states, 56321 states have (on average 2.0700449210773955) internal successors, (116587), 56321 states have internal predecessors, (116587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56322 states to 56322 states and 116587 transitions. [2024-11-09 19:33:29,086 INFO L78 Accepts]: Start accepts. Automaton has 56322 states and 116587 transitions. Word has length 356 [2024-11-09 19:33:29,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:29,087 INFO L471 AbstractCegarLoop]: Abstraction has 56322 states and 116587 transitions. [2024-11-09 19:33:29,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 56322 states and 116587 transitions. [2024-11-09 19:33:29,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-09 19:33:29,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:29,092 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:29,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:33:29,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 19:33:29,294 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:29,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash 604329256, now seen corresponding path program 1 times [2024-11-09 19:33:29,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:29,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109871411] [2024-11-09 19:33:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:29,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-09 19:33:29,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:29,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109871411] [2024-11-09 19:33:29,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109871411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:29,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:29,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:29,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988524905] [2024-11-09 19:33:29,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:29,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:29,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:29,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:29,848 INFO L87 Difference]: Start difference. First operand 56322 states and 116587 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:34,749 INFO L93 Difference]: Finished difference Result 117353 states and 242030 transitions. [2024-11-09 19:33:34,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:34,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 364 [2024-11-09 19:33:34,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:34,840 INFO L225 Difference]: With dead ends: 117353 [2024-11-09 19:33:34,841 INFO L226 Difference]: Without dead ends: 61821 [2024-11-09 19:33:34,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:34,866 INFO L432 NwaCegarLoop]: 2216 mSDtfsCounter, 1800 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3782 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 4381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 3782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:34,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 2353 Invalid, 4381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 3782 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 19:33:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61821 states. [2024-11-09 19:33:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61821 to 56300. [2024-11-09 19:33:35,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56300 states, 56299 states have (on average 2.0118652196308995) internal successors, (113266), 56299 states have internal predecessors, (113266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56300 states to 56300 states and 113266 transitions. [2024-11-09 19:33:35,715 INFO L78 Accepts]: Start accepts. Automaton has 56300 states and 113266 transitions. Word has length 364 [2024-11-09 19:33:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:35,715 INFO L471 AbstractCegarLoop]: Abstraction has 56300 states and 113266 transitions. [2024-11-09 19:33:35,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 56300 states and 113266 transitions. [2024-11-09 19:33:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-09 19:33:35,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:35,722 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:35,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:33:35,722 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:35,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:35,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1929724478, now seen corresponding path program 1 times [2024-11-09 19:33:35,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:35,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606962588] [2024-11-09 19:33:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 19:33:36,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:36,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606962588] [2024-11-09 19:33:36,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606962588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:36,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:36,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:36,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760541952] [2024-11-09 19:33:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:36,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:33:36,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:33:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:33:36,266 INFO L87 Difference]: Start difference. First operand 56300 states and 113266 transitions. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:42,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:42,118 INFO L93 Difference]: Finished difference Result 112615 states and 226554 transitions. [2024-11-09 19:33:42,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:33:42,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 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 381 [2024-11-09 19:33:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:42,189 INFO L225 Difference]: With dead ends: 112615 [2024-11-09 19:33:42,189 INFO L226 Difference]: Without dead ends: 56309 [2024-11-09 19:33:42,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:33:42,215 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 2867 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 7726 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 8155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 7726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:42,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2867 Valid, 1090 Invalid, 8155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 7726 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 19:33:42,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56309 states. [2024-11-09 19:33:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56309 to 56292. [2024-11-09 19:33:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56292 states, 56291 states have (on average 2.008296175232275) internal successors, (113049), 56291 states have internal predecessors, (113049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56292 states to 56292 states and 113049 transitions. [2024-11-09 19:33:43,022 INFO L78 Accepts]: Start accepts. Automaton has 56292 states and 113049 transitions. Word has length 381 [2024-11-09 19:33:43,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:43,023 INFO L471 AbstractCegarLoop]: Abstraction has 56292 states and 113049 transitions. [2024-11-09 19:33:43,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:43,023 INFO L276 IsEmpty]: Start isEmpty. Operand 56292 states and 113049 transitions. [2024-11-09 19:33:43,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-09 19:33:43,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:43,028 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:43,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:33:43,028 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:43,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:43,029 INFO L85 PathProgramCache]: Analyzing trace with hash 627223296, now seen corresponding path program 1 times [2024-11-09 19:33:43,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:43,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939371478] [2024-11-09 19:33:43,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:43,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-09 19:33:43,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:43,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939371478] [2024-11-09 19:33:43,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939371478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:43,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:43,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318990722] [2024-11-09 19:33:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:43,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:43,199 INFO L87 Difference]: Start difference. First operand 56292 states and 113049 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) [2024-11-09 19:33:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:47,571 INFO L93 Difference]: Finished difference Result 111797 states and 224592 transitions. [2024-11-09 19:33:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:47,571 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 391 [2024-11-09 19:33:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:47,640 INFO L225 Difference]: With dead ends: 111797 [2024-11-09 19:33:47,641 INFO L226 Difference]: Without dead ends: 56295 [2024-11-09 19:33:47,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:47,665 INFO L432 NwaCegarLoop]: 2110 mSDtfsCounter, 1651 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 3904 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 4385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 3904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:47,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 2196 Invalid, 4385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 3904 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 19:33:47,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56295 states. [2024-11-09 19:33:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56295 to 56287. [2024-11-09 19:33:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56287 states, 56286 states have (on average 1.987012756280425) internal successors, (111841), 56286 states have internal predecessors, (111841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56287 states to 56287 states and 111841 transitions. [2024-11-09 19:33:48,468 INFO L78 Accepts]: Start accepts. Automaton has 56287 states and 111841 transitions. Word has length 391 [2024-11-09 19:33:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:48,468 INFO L471 AbstractCegarLoop]: Abstraction has 56287 states and 111841 transitions. [2024-11-09 19:33:48,468 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) [2024-11-09 19:33:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 56287 states and 111841 transitions. [2024-11-09 19:33:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-09 19:33:48,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:48,481 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:48,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:33:48,481 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:48,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1331113430, now seen corresponding path program 1 times [2024-11-09 19:33:48,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:48,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357757056] [2024-11-09 19:33:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-09 19:33:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357757056] [2024-11-09 19:33:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357757056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:48,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:48,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044811728] [2024-11-09 19:33:48,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:48,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:48,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:48,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:48,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:48,751 INFO L87 Difference]: Start difference. First operand 56287 states and 111841 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:53,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:53,498 INFO L93 Difference]: Finished difference Result 122820 states and 244663 transitions. [2024-11-09 19:33:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:53,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-11-09 19:33:53,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:53,578 INFO L225 Difference]: With dead ends: 122820 [2024-11-09 19:33:53,579 INFO L226 Difference]: Without dead ends: 67323 [2024-11-09 19:33:53,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:53,599 INFO L432 NwaCegarLoop]: 2441 mSDtfsCounter, 1503 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 3891 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 4327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 3891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:53,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 2581 Invalid, 4327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 3891 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 19:33:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67323 states. [2024-11-09 19:33:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67323 to 67317. [2024-11-09 19:33:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67317 states, 67316 states have (on average 1.9831837898865055) internal successors, (133500), 67316 states have internal predecessors, (133500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67317 states to 67317 states and 133500 transitions. [2024-11-09 19:33:54,270 INFO L78 Accepts]: Start accepts. Automaton has 67317 states and 133500 transitions. Word has length 395 [2024-11-09 19:33:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:54,271 INFO L471 AbstractCegarLoop]: Abstraction has 67317 states and 133500 transitions. [2024-11-09 19:33:54,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:33:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 67317 states and 133500 transitions. [2024-11-09 19:33:54,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-09 19:33:54,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:54,276 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:54,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:33:54,276 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:54,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:54,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1210247389, now seen corresponding path program 1 times [2024-11-09 19:33:54,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:54,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687426729] [2024-11-09 19:33:54,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:54,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-09 19:33:54,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:54,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687426729] [2024-11-09 19:33:54,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687426729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:54,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:54,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:54,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616343721] [2024-11-09 19:33:54,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:54,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:33:54,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:54,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:33:54,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:33:54,725 INFO L87 Difference]: Start difference. First operand 67317 states and 133500 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)