./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label33.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_label33.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 aaccf385f935203878b819a92144fc9de308865fc678d0507ba69ad2b46a0a7a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:33:24,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:33:24,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:33:24,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:33:24,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:33:24,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:33:24,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:33:24,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:33:24,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:33:24,134 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:33:24,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:33:24,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:33:24,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:33:24,140 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:33:24,140 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:33:24,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:33:24,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:33:24,141 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:33:24,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:33:24,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:33:24,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:33:24,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:33:24,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:33:24,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:33:24,144 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:33:24,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:33:24,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:33:24,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:33:24,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:33:24,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:33:24,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:33:24,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:33:24,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:33:24,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:33:24,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:33:24,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:33:24,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:33:24,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:33:24,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:33:24,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:33:24,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:33:24,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:33:24,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaccf385f935203878b819a92144fc9de308865fc678d0507ba69ad2b46a0a7a [2024-11-09 19:33:24,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:33:24,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:33:24,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:33:24,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:33:24,436 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:33:24,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label33.c [2024-11-09 19:33:25,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:33:26,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:33:26,215 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label33.c [2024-11-09 19:33:26,251 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e4b4e467/7ec268a1c1ab44969ccbbc46daf2ea50/FLAG4b7570379 [2024-11-09 19:33:26,267 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e4b4e467/7ec268a1c1ab44969ccbbc46daf2ea50 [2024-11-09 19:33:26,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:33:26,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:33:26,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:33:26,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:33:26,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:33:26,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:33:26" (1/1) ... [2024-11-09 19:33:26,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652316bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:26, skipping insertion in model container [2024-11-09 19:33:26,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:33:26" (1/1) ... [2024-11-09 19:33:26,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:33:26,680 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_label33.c[5177,5190] [2024-11-09 19:33:27,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:33:27,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:33:27,575 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_label33.c[5177,5190] [2024-11-09 19:33:28,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:33:28,069 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:33:28,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28 WrapperNode [2024-11-09 19:33:28,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:33:28,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:33:28,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:33:28,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:33:28,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:28,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:28,693 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-09 19:33:28,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:33:28,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:33:28,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:33:28,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:33:28,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:28,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:28,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,032 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 19:33:29,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,289 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:33:29,444 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:33:29,445 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:33:29,445 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:33:29,446 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (1/1) ... [2024-11-09 19:33:29,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:33:29,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:33:29,483 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 19:33:29,485 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 19:33:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:33:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:33:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:33:29,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:33:29,601 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:33:29,604 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:33:35,936 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-09 19:33:35,936 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:33:35,937 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:33:36,339 INFO L? ?]: Removed 2111 outVars from TransFormulas that were not future-live. [2024-11-09 19:33:36,339 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:33:36,390 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:33:36,391 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:33:36,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:33:36 BoogieIcfgContainer [2024-11-09 19:33:36,392 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:33:36,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:33:36,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:33:36,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:33:36,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:33:26" (1/3) ... [2024-11-09 19:33:36,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430bbda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:33:36, skipping insertion in model container [2024-11-09 19:33:36,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:33:28" (2/3) ... [2024-11-09 19:33:36,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430bbda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:33:36, skipping insertion in model container [2024-11-09 19:33:36,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:33:36" (3/3) ... [2024-11-09 19:33:36,402 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label33.c [2024-11-09 19:33:36,421 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:33:36,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:33:36,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:33:36,547 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;@430ccc6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:33:36,548 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:33:36,557 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 19:33:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 19:33:36,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:36,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:33:36,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:36,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:36,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1465064238, now seen corresponding path program 1 times [2024-11-09 19:33:36,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:36,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817244072] [2024-11-09 19:33:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:36,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:36,937 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 19:33:36,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:36,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817244072] [2024-11-09 19:33:36,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817244072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:36,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:36,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:33:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144009466] [2024-11-09 19:33:36,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:36,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:36,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:36,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:36,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:36,983 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 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 19:33:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:42,817 INFO L93 Difference]: Finished difference Result 3127 states and 7958 transitions. [2024-11-09 19:33:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:42,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-09 19:33:42,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:42,853 INFO L225 Difference]: With dead ends: 3127 [2024-11-09 19:33:42,854 INFO L226 Difference]: Without dead ends: 1947 [2024-11-09 19:33:42,861 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 19:33:42,864 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1670 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 4556 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 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, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:42,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 575 Invalid, 5133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 4556 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 19:33:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2024-11-09 19:33:42,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1876. [2024-11-09 19:33:42,990 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 19:33:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 4691 transitions. [2024-11-09 19:33:42,999 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 4691 transitions. Word has length 37 [2024-11-09 19:33:43,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:43,001 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 4691 transitions. [2024-11-09 19:33:43,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 19:33:43,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 4691 transitions. [2024-11-09 19:33:43,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 19:33:43,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:43,006 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:43,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:33:43,007 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:43,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:43,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1308893433, now seen corresponding path program 1 times [2024-11-09 19:33:43,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:43,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810846931] [2024-11-09 19:33:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:43,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:43,395 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:33:43,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:43,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810846931] [2024-11-09 19:33:43,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810846931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:43,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:43,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:33:43,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081359746] [2024-11-09 19:33:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:43,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:43,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:43,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:43,401 INFO L87 Difference]: Start difference. First operand 1876 states and 4691 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 19:33:47,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:47,989 INFO L93 Difference]: Finished difference Result 4611 states and 11551 transitions. [2024-11-09 19:33:47,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:47,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-09 19:33:47,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:48,005 INFO L225 Difference]: With dead ends: 4611 [2024-11-09 19:33:48,006 INFO L226 Difference]: Without dead ends: 2737 [2024-11-09 19:33:48,010 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 19:33:48,011 INFO L432 NwaCegarLoop]: 604 mSDtfsCounter, 1531 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4448 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:48,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 742 Invalid, 4612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 4448 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:33:48,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2024-11-09 19:33:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2674. [2024-11-09 19:33:48,068 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 19:33:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 6577 transitions. [2024-11-09 19:33:48,075 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 6577 transitions. Word has length 103 [2024-11-09 19:33:48,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:48,075 INFO L471 AbstractCegarLoop]: Abstraction has 2674 states and 6577 transitions. [2024-11-09 19:33:48,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 19:33:48,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 6577 transitions. [2024-11-09 19:33:48,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 19:33:48,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:48,078 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:48,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:33:48,078 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:48,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:48,080 INFO L85 PathProgramCache]: Analyzing trace with hash 307169177, now seen corresponding path program 1 times [2024-11-09 19:33:48,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:48,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862814049] [2024-11-09 19:33:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:33:48,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:48,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862814049] [2024-11-09 19:33:48,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862814049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:48,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:48,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:33:48,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406912682] [2024-11-09 19:33:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:48,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:33:48,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:48,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:33:48,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:33:48,221 INFO L87 Difference]: Start difference. First operand 2674 states and 6577 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 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 19:33:52,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:52,774 INFO L93 Difference]: Finished difference Result 7757 states and 19349 transitions. [2024-11-09 19:33:52,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:33:52,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-09 19:33:52,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:52,799 INFO L225 Difference]: With dead ends: 7757 [2024-11-09 19:33:52,800 INFO L226 Difference]: Without dead ends: 5085 [2024-11-09 19:33:52,805 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 19:33:52,806 INFO L432 NwaCegarLoop]: 1034 mSDtfsCounter, 1529 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 3935 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 4715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 3935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:52,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1187 Invalid, 4715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 3935 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 19:33:52,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5085 states. [2024-11-09 19:33:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5085 to 5067. [2024-11-09 19:33:52,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5067 states, 5066 states have (on average 2.2761547572048952) internal successors, (11531), 5066 states have internal predecessors, (11531), 0 states have call successors, (0), 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 19:33:52,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 11531 transitions. [2024-11-09 19:33:52,933 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 11531 transitions. Word has length 104 [2024-11-09 19:33:52,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:52,939 INFO L471 AbstractCegarLoop]: Abstraction has 5067 states and 11531 transitions. [2024-11-09 19:33:52,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 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 19:33:52,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 11531 transitions. [2024-11-09 19:33:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 19:33:52,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:52,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:52,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:33:52,944 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:52,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:52,945 INFO L85 PathProgramCache]: Analyzing trace with hash 694253364, now seen corresponding path program 1 times [2024-11-09 19:33:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:52,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006190026] [2024-11-09 19:33:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:52,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:33:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:33:53,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:33:53,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006190026] [2024-11-09 19:33:53,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006190026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:33:53,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:33:53,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:33:53,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274510433] [2024-11-09 19:33:53,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:33:53,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:33:53,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:33:53,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:33:53,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:33:53,429 INFO L87 Difference]: Start difference. First operand 5067 states and 11531 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 19:33:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:33:59,605 INFO L93 Difference]: Finished difference Result 12518 states and 28794 transitions. [2024-11-09 19:33:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:33:59,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-09 19:33:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:33:59,630 INFO L225 Difference]: With dead ends: 12518 [2024-11-09 19:33:59,630 INFO L226 Difference]: Without dead ends: 7453 [2024-11-09 19:33:59,641 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 19:33:59,642 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 4742 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 6271 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s 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, 6.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:33:59,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 1010 Invalid, 7132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 6271 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-09 19:33:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2024-11-09 19:33:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 7452. [2024-11-09 19:33:59,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7452 states, 7451 states have (on average 2.2065494564487986) internal successors, (16441), 7451 states have internal predecessors, (16441), 0 states have call successors, (0), 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 19:33:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 16441 transitions. [2024-11-09 19:33:59,809 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 16441 transitions. Word has length 124 [2024-11-09 19:33:59,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:33:59,810 INFO L471 AbstractCegarLoop]: Abstraction has 7452 states and 16441 transitions. [2024-11-09 19:33:59,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 19:33:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 16441 transitions. [2024-11-09 19:33:59,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 19:33:59,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:33:59,814 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:33:59,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:33:59,814 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:33:59,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:33:59,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2125323932, now seen corresponding path program 1 times [2024-11-09 19:33:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:33:59,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878372425] [2024-11-09 19:33:59,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:33:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:33:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:34:00,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:00,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878372425] [2024-11-09 19:34:00,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878372425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:00,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:00,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:34:00,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996108366] [2024-11-09 19:34:00,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:00,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:34:00,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:00,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:34:00,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:34:00,092 INFO L87 Difference]: Start difference. First operand 7452 states and 16441 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 19:34:07,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:07,598 INFO L93 Difference]: Finished difference Result 20632 states and 46522 transitions. [2024-11-09 19:34:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:34:07,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-09 19:34:07,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:07,633 INFO L225 Difference]: With dead ends: 20632 [2024-11-09 19:34:07,633 INFO L226 Difference]: Without dead ends: 13970 [2024-11-09 19:34:07,641 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 19:34:07,643 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 3219 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 9258 mSolverCounterSat, 1203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 10461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1203 IncrementalHoareTripleChecker+Valid, 9258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:07,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3219 Valid, 920 Invalid, 10461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1203 Valid, 9258 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-09 19:34:07,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13970 states. [2024-11-09 19:34:07,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13970 to 13857. [2024-11-09 19:34:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13857 states, 13856 states have (on average 2.211460739030023) internal successors, (30642), 13856 states have internal predecessors, (30642), 0 states have call successors, (0), 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 19:34:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13857 states to 13857 states and 30642 transitions. [2024-11-09 19:34:07,911 INFO L78 Accepts]: Start accepts. Automaton has 13857 states and 30642 transitions. Word has length 134 [2024-11-09 19:34:07,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:07,912 INFO L471 AbstractCegarLoop]: Abstraction has 13857 states and 30642 transitions. [2024-11-09 19:34:07,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 19:34:07,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13857 states and 30642 transitions. [2024-11-09 19:34:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-09 19:34:07,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:07,915 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:07,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:34:07,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:07,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:07,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1696273901, now seen corresponding path program 1 times [2024-11-09 19:34:07,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:07,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648085618] [2024-11-09 19:34:07,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:07,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:34:08,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:08,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648085618] [2024-11-09 19:34:08,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648085618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:08,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:08,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:34:08,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748815708] [2024-11-09 19:34:08,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:08,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:08,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:08,186 INFO L87 Difference]: Start difference. First operand 13857 states and 30642 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 19:34:12,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:12,509 INFO L93 Difference]: Finished difference Result 33244 states and 75355 transitions. [2024-11-09 19:34:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:12,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-11-09 19:34:12,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:12,562 INFO L225 Difference]: With dead ends: 33244 [2024-11-09 19:34:12,563 INFO L226 Difference]: Without dead ends: 20177 [2024-11-09 19:34:12,579 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 19:34:12,580 INFO L432 NwaCegarLoop]: 792 mSDtfsCounter, 1615 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 3808 mSolverCounterSat, 928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 4736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 928 IncrementalHoareTripleChecker+Valid, 3808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:12,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 913 Invalid, 4736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [928 Valid, 3808 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:34:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20177 states. [2024-11-09 19:34:12,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20177 to 20166. [2024-11-09 19:34:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20166 states, 20165 states have (on average 2.1990577733697) internal successors, (44344), 20165 states have internal predecessors, (44344), 0 states have call successors, (0), 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 19:34:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20166 states to 20166 states and 44344 transitions. [2024-11-09 19:34:13,005 INFO L78 Accepts]: Start accepts. Automaton has 20166 states and 44344 transitions. Word has length 202 [2024-11-09 19:34:13,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:13,006 INFO L471 AbstractCegarLoop]: Abstraction has 20166 states and 44344 transitions. [2024-11-09 19:34:13,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 19:34:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 20166 states and 44344 transitions. [2024-11-09 19:34:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-09 19:34:13,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:13,009 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:34:13,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:34:13,010 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:13,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1905038608, now seen corresponding path program 1 times [2024-11-09 19:34:13,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:13,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600233740] [2024-11-09 19:34:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 19:34:13,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:13,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600233740] [2024-11-09 19:34:13,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600233740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:13,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:13,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:34:13,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317480530] [2024-11-09 19:34:13,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:13,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:13,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:13,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:13,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:13,250 INFO L87 Difference]: Start difference. First operand 20166 states and 44344 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 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 19:34:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:17,374 INFO L93 Difference]: Finished difference Result 58451 states and 129395 transitions. [2024-11-09 19:34:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:17,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-09 19:34:17,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:17,459 INFO L225 Difference]: With dead ends: 58451 [2024-11-09 19:34:17,460 INFO L226 Difference]: Without dead ends: 39075 [2024-11-09 19:34:17,491 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 19:34:17,494 INFO L432 NwaCegarLoop]: 905 mSDtfsCounter, 1577 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 3774 mSolverCounterSat, 869 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 4643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 3774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:17,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1053 Invalid, 4643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [869 Valid, 3774 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 19:34:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39075 states. [2024-11-09 19:34:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39075 to 39072. [2024-11-09 19:34:17,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39072 states, 39071 states have (on average 2.1164290650354483) internal successors, (82691), 39071 states have internal predecessors, (82691), 0 states have call successors, (0), 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 19:34:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39072 states to 39072 states and 82691 transitions. [2024-11-09 19:34:17,971 INFO L78 Accepts]: Start accepts. Automaton has 39072 states and 82691 transitions. Word has length 221 [2024-11-09 19:34:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:17,972 INFO L471 AbstractCegarLoop]: Abstraction has 39072 states and 82691 transitions. [2024-11-09 19:34:17,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 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 19:34:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand 39072 states and 82691 transitions. [2024-11-09 19:34:17,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-09 19:34:17,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:17,975 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:34:17,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:34:17,975 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:17,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:17,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2031157163, now seen corresponding path program 1 times [2024-11-09 19:34:17,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:17,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694546113] [2024-11-09 19:34:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:17,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-09 19:34:18,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694546113] [2024-11-09 19:34:18,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694546113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:18,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:18,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:34:18,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106847258] [2024-11-09 19:34:18,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:18,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:18,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:18,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:18,121 INFO L87 Difference]: Start difference. First operand 39072 states and 82691 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 19:34:22,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:22,959 INFO L93 Difference]: Finished difference Result 89193 states and 191131 transitions. [2024-11-09 19:34:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:22,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 224 [2024-11-09 19:34:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:23,055 INFO L225 Difference]: With dead ends: 89193 [2024-11-09 19:34:23,055 INFO L226 Difference]: Without dead ends: 50911 [2024-11-09 19:34:23,099 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 19:34:23,101 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 1702 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 4815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 981 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:23,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 863 Invalid, 4815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [981 Valid, 3834 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:34:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50911 states. [2024-11-09 19:34:23,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50911 to 50896. [2024-11-09 19:34:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50896 states, 50895 states have (on average 2.128362314569211) internal successors, (108323), 50895 states have internal predecessors, (108323), 0 states have call successors, (0), 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 19:34:23,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50896 states to 50896 states and 108323 transitions. [2024-11-09 19:34:23,742 INFO L78 Accepts]: Start accepts. Automaton has 50896 states and 108323 transitions. Word has length 224 [2024-11-09 19:34:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:23,744 INFO L471 AbstractCegarLoop]: Abstraction has 50896 states and 108323 transitions. [2024-11-09 19:34:23,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 19:34:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 50896 states and 108323 transitions. [2024-11-09 19:34:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-09 19:34:23,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:23,748 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:23,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:34:23,749 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:23,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:23,749 INFO L85 PathProgramCache]: Analyzing trace with hash -500942053, now seen corresponding path program 1 times [2024-11-09 19:34:23,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:23,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645313994] [2024-11-09 19:34:23,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:23,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:34:23,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:23,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645313994] [2024-11-09 19:34:23,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645313994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:23,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:23,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:34:23,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976518156] [2024-11-09 19:34:23,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:23,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:23,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:23,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:23,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:23,921 INFO L87 Difference]: Start difference. First operand 50896 states and 108323 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 19:34:28,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:28,352 INFO L93 Difference]: Finished difference Result 113615 states and 244002 transitions. [2024-11-09 19:34:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 255 [2024-11-09 19:34:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:28,446 INFO L225 Difference]: With dead ends: 113615 [2024-11-09 19:34:28,446 INFO L226 Difference]: Without dead ends: 63509 [2024-11-09 19:34:28,476 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 19:34:28,476 INFO L432 NwaCegarLoop]: 2434 mSDtfsCounter, 1568 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 4653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:28,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 2585 Invalid, 4653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 19:34:28,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63509 states. [2024-11-09 19:34:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63509 to 63504. [2024-11-09 19:34:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63504 states, 63503 states have (on average 2.105475331874085) internal successors, (133704), 63503 states have internal predecessors, (133704), 0 states have call successors, (0), 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 19:34:29,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63504 states to 63504 states and 133704 transitions. [2024-11-09 19:34:29,813 INFO L78 Accepts]: Start accepts. Automaton has 63504 states and 133704 transitions. Word has length 255 [2024-11-09 19:34:29,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:29,816 INFO L471 AbstractCegarLoop]: Abstraction has 63504 states and 133704 transitions. [2024-11-09 19:34:29,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 19:34:29,817 INFO L276 IsEmpty]: Start isEmpty. Operand 63504 states and 133704 transitions. [2024-11-09 19:34:29,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-09 19:34:29,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:29,828 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, 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, 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] [2024-11-09 19:34:29,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:34:29,829 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:29,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1312128014, now seen corresponding path program 1 times [2024-11-09 19:34:29,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:29,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124573096] [2024-11-09 19:34:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:29,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:30,303 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-09 19:34:30,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:30,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124573096] [2024-11-09 19:34:30,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124573096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:30,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:30,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:34:30,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826195926] [2024-11-09 19:34:30,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:30,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:30,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:30,306 INFO L87 Difference]: Start difference. First operand 63504 states and 133704 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 19:34:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:34,449 INFO L93 Difference]: Finished difference Result 126198 states and 265878 transitions. [2024-11-09 19:34:34,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:34,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 334 [2024-11-09 19:34:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:34,538 INFO L225 Difference]: With dead ends: 126198 [2024-11-09 19:34:34,538 INFO L226 Difference]: Without dead ends: 63484 [2024-11-09 19:34:34,717 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 19:34:34,717 INFO L432 NwaCegarLoop]: 2236 mSDtfsCounter, 1744 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 4383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:34,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 2375 Invalid, 4383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 3787 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 19:34:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63484 states. [2024-11-09 19:34:35,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63484 to 63479. [2024-11-09 19:34:35,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63479 states, 63478 states have (on average 2.0433220958442293) internal successors, (129706), 63478 states have internal predecessors, (129706), 0 states have call successors, (0), 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 19:34:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63479 states to 63479 states and 129706 transitions. [2024-11-09 19:34:35,685 INFO L78 Accepts]: Start accepts. Automaton has 63479 states and 129706 transitions. Word has length 334 [2024-11-09 19:34:35,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:35,686 INFO L471 AbstractCegarLoop]: Abstraction has 63479 states and 129706 transitions. [2024-11-09 19:34:35,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 19:34:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 63479 states and 129706 transitions. [2024-11-09 19:34:35,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-09 19:34:35,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:35,695 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:34:35,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:34:35,696 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:35,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:35,697 INFO L85 PathProgramCache]: Analyzing trace with hash -88460848, now seen corresponding path program 1 times [2024-11-09 19:34:35,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:35,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488649941] [2024-11-09 19:34:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:35,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:34:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:36,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488649941] [2024-11-09 19:34:36,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488649941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:36,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:36,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:34:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302940993] [2024-11-09 19:34:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:36,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:36,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:36,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:36,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:36,214 INFO L87 Difference]: Start difference. First operand 63479 states and 129706 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 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 19:34:41,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:34:41,292 INFO L93 Difference]: Finished difference Result 182133 states and 372587 transitions. [2024-11-09 19:34:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:34:41,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 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 337 [2024-11-09 19:34:41,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:34:41,491 INFO L225 Difference]: With dead ends: 182133 [2024-11-09 19:34:41,491 INFO L226 Difference]: Without dead ends: 119444 [2024-11-09 19:34:41,518 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 19:34:41,519 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 1459 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4018 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 4746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 4018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:34:41,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1037 Invalid, 4746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 4018 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 19:34:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119444 states. [2024-11-09 19:34:42,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119444 to 103662. [2024-11-09 19:34:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103662 states, 103661 states have (on average 2.01793345616963) internal successors, (209181), 103661 states have internal predecessors, (209181), 0 states have call successors, (0), 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 19:34:43,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103662 states to 103662 states and 209181 transitions. [2024-11-09 19:34:43,295 INFO L78 Accepts]: Start accepts. Automaton has 103662 states and 209181 transitions. Word has length 337 [2024-11-09 19:34:43,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:34:43,296 INFO L471 AbstractCegarLoop]: Abstraction has 103662 states and 209181 transitions. [2024-11-09 19:34:43,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 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 19:34:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 103662 states and 209181 transitions. [2024-11-09 19:34:43,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-09 19:34:43,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:34:43,303 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, 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, 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 19:34:43,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:34:43,303 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:34:43,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:34:43,303 INFO L85 PathProgramCache]: Analyzing trace with hash -926027317, now seen corresponding path program 1 times [2024-11-09 19:34:43,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:34:43,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871172416] [2024-11-09 19:34:43,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:34:43,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:34:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:34:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-09 19:34:43,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:34:43,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871172416] [2024-11-09 19:34:43,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871172416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:34:43,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:34:43,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:34:43,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122388944] [2024-11-09 19:34:43,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:34:43,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:34:43,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:34:43,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:34:43,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:34:43,661 INFO L87 Difference]: Start difference. First operand 103662 states and 209181 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)