./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label52.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_label52.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 eceda023c7394c88c46221fb5ed6b67ae6e1976efca78e0b148b1f17e3b2b45b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:35:38,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:35:38,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:35:38,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:35:38,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:35:38,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:35:38,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:35:38,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:35:38,354 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:35:38,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:35:38,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:35:38,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:35:38,356 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:35:38,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:35:38,357 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:35:38,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:35:38,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:35:38,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:35:38,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:35:38,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:35:38,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:35:38,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:35:38,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:35:38,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:35:38,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:35:38,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:35:38,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:35:38,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:35:38,364 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:35:38,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:35:38,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:35:38,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:35:38,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:35:38,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:35:38,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:35:38,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:35:38,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eceda023c7394c88c46221fb5ed6b67ae6e1976efca78e0b148b1f17e3b2b45b [2024-11-09 19:35:38,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:35:38,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:35:38,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:35:38,611 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:35:38,611 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:35:38,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label52.c [2024-11-09 19:35:39,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:35:40,338 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:35:40,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label52.c [2024-11-09 19:35:40,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a183fd21/89ab03e69f0547709f60dae59127a340/FLAG8e7fbc0e2 [2024-11-09 19:35:40,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a183fd21/89ab03e69f0547709f60dae59127a340 [2024-11-09 19:35:40,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:35:40,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:35:40,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:35:40,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:35:40,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:35:40,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:35:40" (1/1) ... [2024-11-09 19:35:40,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48149f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:40, skipping insertion in model container [2024-11-09 19:35:40,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:35:40" (1/1) ... [2024-11-09 19:35:40,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:35:40,899 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_label52.c[9091,9104] [2024-11-09 19:35:41,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:35:41,751 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:35:41,783 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_label52.c[9091,9104] [2024-11-09 19:35:42,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:35:42,274 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:35:42,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42 WrapperNode [2024-11-09 19:35:42,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:35:42,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:35:42,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:35:42,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:35:42,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:42,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:42,736 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-09 19:35:42,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:35:42,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:35:42,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:35:42,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:35:42,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:42,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:42,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,020 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 19:35:43,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:35:43,344 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:35:43,344 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:35:43,345 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:35:43,346 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (1/1) ... [2024-11-09 19:35:43,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:35:43,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:35:43,380 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 19:35:43,392 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 19:35:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:35:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:35:43,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:35:43,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:35:43,477 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:35:43,478 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:35:48,192 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1894: havoc calculate_output_#t~ret9#1; [2024-11-09 19:35:48,193 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3629: havoc calculate_output2_#t~ret10#1; [2024-11-09 19:35:48,193 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5351: havoc calculate_output3_#t~ret11#1; [2024-11-09 19:35:48,498 INFO L? ?]: Removed 2111 outVars from TransFormulas that were not future-live. [2024-11-09 19:35:48,498 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:35:48,542 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:35:48,543 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:35:48,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:35:48 BoogieIcfgContainer [2024-11-09 19:35:48,543 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:35:48,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:35:48,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:35:48,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:35:48,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:35:40" (1/3) ... [2024-11-09 19:35:48,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7ee076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:35:48, skipping insertion in model container [2024-11-09 19:35:48,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:35:42" (2/3) ... [2024-11-09 19:35:48,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7ee076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:35:48, skipping insertion in model container [2024-11-09 19:35:48,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:35:48" (3/3) ... [2024-11-09 19:35:48,557 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52.c [2024-11-09 19:35:48,585 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:35:48,588 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:35:48,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:35:48,714 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;@2f2c613f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:35:48,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:35:48,725 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 19:35:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 19:35:48,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:48,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:48,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:48,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -355803103, now seen corresponding path program 1 times [2024-11-09 19:35:48,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:48,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979353316] [2024-11-09 19:35:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:49,130 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 19:35:49,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:49,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979353316] [2024-11-09 19:35:49,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979353316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:49,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:49,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481647459] [2024-11-09 19:35:49,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:49,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:49,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:49,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:49,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:49,161 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 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 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 19:35:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:53,791 INFO L93 Difference]: Finished difference Result 3041 states and 7797 transitions. [2024-11-09 19:35:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:53,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-09 19:35:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:53,813 INFO L225 Difference]: With dead ends: 3041 [2024-11-09 19:35:53,813 INFO L226 Difference]: Without dead ends: 1876 [2024-11-09 19:35:53,820 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 19:35:53,823 INFO L432 NwaCegarLoop]: 990 mSDtfsCounter, 1557 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 3937 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 4795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 3937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:53,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 1146 Invalid, 4795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 3937 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 19:35:53,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2024-11-09 19:35:53,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1862. [2024-11-09 19:35:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 2.3127350886620097) internal successors, (4304), 1861 states have internal predecessors, (4304), 0 states have call successors, (0), 0 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 19:35:53,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 4304 transitions. [2024-11-09 19:35:53,940 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 4304 transitions. Word has length 66 [2024-11-09 19:35:53,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:53,940 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 4304 transitions. [2024-11-09 19:35:53,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 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 19:35:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 4304 transitions. [2024-11-09 19:35:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 19:35:53,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:53,944 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:35:53,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:35:53,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:53,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1512179422, now seen corresponding path program 1 times [2024-11-09 19:35:53,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:53,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251736981] [2024-11-09 19:35:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:53,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:35:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:35:54,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:35:54,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251736981] [2024-11-09 19:35:54,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251736981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:35:54,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:35:54,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:35:54,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077823415] [2024-11-09 19:35:54,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:35:54,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:35:54,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:35:54,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:35:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:35:54,249 INFO L87 Difference]: Start difference. First operand 1862 states and 4304 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 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 19:35:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:35:59,663 INFO L93 Difference]: Finished difference Result 5416 states and 12710 transitions. [2024-11-09 19:35:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:35:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-09 19:35:59,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:35:59,676 INFO L225 Difference]: With dead ends: 5416 [2024-11-09 19:35:59,676 INFO L226 Difference]: Without dead ends: 3556 [2024-11-09 19:35:59,679 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 19:35:59,680 INFO L432 NwaCegarLoop]: 906 mSDtfsCounter, 1581 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 5217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:35:59,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 1042 Invalid, 5217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-09 19:35:59,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-11-09 19:35:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3481. [2024-11-09 19:35:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3481 states, 3480 states have (on average 2.3123563218390806) internal successors, (8047), 3480 states have internal predecessors, (8047), 0 states have call successors, (0), 0 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 19:35:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3481 states to 3481 states and 8047 transitions. [2024-11-09 19:35:59,768 INFO L78 Accepts]: Start accepts. Automaton has 3481 states and 8047 transitions. Word has length 139 [2024-11-09 19:35:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:35:59,770 INFO L471 AbstractCegarLoop]: Abstraction has 3481 states and 8047 transitions. [2024-11-09 19:35:59,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 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 19:35:59,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3481 states and 8047 transitions. [2024-11-09 19:35:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 19:35:59,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:35:59,775 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:35:59,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:35:59,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:35:59,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:35:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 278431864, now seen corresponding path program 1 times [2024-11-09 19:35:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:35:59,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335424596] [2024-11-09 19:35:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:35:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:35:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:36:00,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:00,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335424596] [2024-11-09 19:36:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335424596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:00,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:00,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391971572] [2024-11-09 19:36:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:00,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:36:00,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:36:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:36:00,151 INFO L87 Difference]: Start difference. First operand 3481 states and 8047 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 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 19:36:06,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:06,882 INFO L93 Difference]: Finished difference Result 10932 states and 25367 transitions. [2024-11-09 19:36:06,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:36:06,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-11-09 19:36:06,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:06,907 INFO L225 Difference]: With dead ends: 10932 [2024-11-09 19:36:06,907 INFO L226 Difference]: Without dead ends: 7453 [2024-11-09 19:36:06,911 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 19:36:06,912 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 4739 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 6271 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 7187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 6271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:06,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 1013 Invalid, 7187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 6271 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 19:36:06,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7453 states. [2024-11-09 19:36:07,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7453 to 7452. [2024-11-09 19:36:07,038 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 19:36:07,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7452 states to 7452 states and 16441 transitions. [2024-11-09 19:36:07,055 INFO L78 Accepts]: Start accepts. Automaton has 7452 states and 16441 transitions. Word has length 153 [2024-11-09 19:36:07,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:07,060 INFO L471 AbstractCegarLoop]: Abstraction has 7452 states and 16441 transitions. [2024-11-09 19:36:07,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 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 19:36:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 7452 states and 16441 transitions. [2024-11-09 19:36:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-09 19:36:07,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:07,064 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:07,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:36:07,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:07,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:07,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1958649900, now seen corresponding path program 1 times [2024-11-09 19:36:07,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:07,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346804697] [2024-11-09 19:36:07,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:07,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-09 19:36:07,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:07,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346804697] [2024-11-09 19:36:07,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346804697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:07,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:07,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:36:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491398077] [2024-11-09 19:36:07,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:07,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:07,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:07,294 INFO L87 Difference]: Start difference. First operand 7452 states and 16441 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 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 19:36:11,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:11,911 INFO L93 Difference]: Finished difference Result 20451 states and 45871 transitions. [2024-11-09 19:36:11,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:11,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 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 235 [2024-11-09 19:36:11,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:11,945 INFO L225 Difference]: With dead ends: 20451 [2024-11-09 19:36:11,945 INFO L226 Difference]: Without dead ends: 13789 [2024-11-09 19:36:11,951 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 19:36:11,952 INFO L432 NwaCegarLoop]: 835 mSDtfsCounter, 1623 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4001 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 4752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 4001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:11,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 969 Invalid, 4752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 4001 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 19:36:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13789 states. [2024-11-09 19:36:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13789 to 13779. [2024-11-09 19:36:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13779 states, 13778 states have (on average 2.149876614893308) internal successors, (29621), 13778 states have internal predecessors, (29621), 0 states have call successors, (0), 0 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 19:36:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13779 states to 13779 states and 29621 transitions. [2024-11-09 19:36:12,160 INFO L78 Accepts]: Start accepts. Automaton has 13779 states and 29621 transitions. Word has length 235 [2024-11-09 19:36:12,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:12,161 INFO L471 AbstractCegarLoop]: Abstraction has 13779 states and 29621 transitions. [2024-11-09 19:36:12,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 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 19:36:12,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13779 states and 29621 transitions. [2024-11-09 19:36:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-09 19:36:12,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:12,166 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:12,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:36:12,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:12,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:12,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2091811834, now seen corresponding path program 1 times [2024-11-09 19:36:12,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:12,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159205874] [2024-11-09 19:36:12,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:12,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:36:12,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:12,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159205874] [2024-11-09 19:36:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159205874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:12,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:12,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:12,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319764890] [2024-11-09 19:36:12,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:12,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:36:12,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:12,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:36:12,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:36:12,356 INFO L87 Difference]: Start difference. First operand 13779 states and 29621 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 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 19:36:19,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:19,833 INFO L93 Difference]: Finished difference Result 39597 states and 86213 transitions. [2024-11-09 19:36:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:36:19,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2024-11-09 19:36:19,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:19,878 INFO L225 Difference]: With dead ends: 39597 [2024-11-09 19:36:19,878 INFO L226 Difference]: Without dead ends: 26608 [2024-11-09 19:36:19,889 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 19:36:19,890 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 3173 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 9264 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3173 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 10479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 9264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:19,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3173 Valid, 694 Invalid, 10479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1215 Valid, 9264 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-09 19:36:19,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26608 states. [2024-11-09 19:36:20,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26608 to 26487. [2024-11-09 19:36:20,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26487 states, 26486 states have (on average 2.1450577663671373) internal successors, (56814), 26486 states have internal predecessors, (56814), 0 states have call successors, (0), 0 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 19:36:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26487 states to 26487 states and 56814 transitions. [2024-11-09 19:36:20,178 INFO L78 Accepts]: Start accepts. Automaton has 26487 states and 56814 transitions. Word has length 249 [2024-11-09 19:36:20,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:20,179 INFO L471 AbstractCegarLoop]: Abstraction has 26487 states and 56814 transitions. [2024-11-09 19:36:20,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 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 19:36:20,180 INFO L276 IsEmpty]: Start isEmpty. Operand 26487 states and 56814 transitions. [2024-11-09 19:36:20,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-09 19:36:20,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:20,183 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, 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] [2024-11-09 19:36:20,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:36:20,184 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:20,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash 938593542, now seen corresponding path program 1 times [2024-11-09 19:36:20,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:20,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11383339] [2024-11-09 19:36:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:20,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-09 19:36:20,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11383339] [2024-11-09 19:36:20,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11383339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:20,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:36:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231884504] [2024-11-09 19:36:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:20,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:20,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:20,354 INFO L87 Difference]: Start difference. First operand 26487 states and 56814 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 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 19:36:24,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:24,982 INFO L93 Difference]: Finished difference Result 76607 states and 165178 transitions. [2024-11-09 19:36:24,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 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 278 [2024-11-09 19:36:24,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:25,079 INFO L225 Difference]: With dead ends: 76607 [2024-11-09 19:36:25,079 INFO L226 Difference]: Without dead ends: 50910 [2024-11-09 19:36:25,105 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 19:36:25,105 INFO L432 NwaCegarLoop]: 1000 mSDtfsCounter, 1528 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 3842 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 4709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 3842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:25,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1147 Invalid, 4709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 3842 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 19:36:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50910 states. [2024-11-09 19:36:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50910 to 46173. [2024-11-09 19:36:26,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46173 states, 46172 states have (on average 2.0872823356146584) internal successors, (96374), 46172 states have internal predecessors, (96374), 0 states have call successors, (0), 0 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 19:36:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46173 states to 46173 states and 96374 transitions. [2024-11-09 19:36:26,124 INFO L78 Accepts]: Start accepts. Automaton has 46173 states and 96374 transitions. Word has length 278 [2024-11-09 19:36:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:26,125 INFO L471 AbstractCegarLoop]: Abstraction has 46173 states and 96374 transitions. [2024-11-09 19:36:26,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 states have internal predecessors, (183), 0 states have call successors, (0), 0 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 19:36:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand 46173 states and 96374 transitions. [2024-11-09 19:36:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-09 19:36:26,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:26,133 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:26,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:36:26,133 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:26,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:26,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1446857409, now seen corresponding path program 1 times [2024-11-09 19:36:26,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:26,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585256764] [2024-11-09 19:36:26,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:26,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 366 proven. 26 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 19:36:26,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:26,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585256764] [2024-11-09 19:36:26,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585256764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:36:26,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595349401] [2024-11-09 19:36:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:26,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:36:26,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:36:26,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:36:26,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:36:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:27,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:36:27,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:36:27,443 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 19:36:27,443 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:36:27,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595349401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:27,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:36:27,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:36:27,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624920757] [2024-11-09 19:36:27,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:27,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:27,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:27,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:27,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:36:27,449 INFO L87 Difference]: Start difference. First operand 46173 states and 96374 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 19:36:31,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:31,987 INFO L93 Difference]: Finished difference Result 127015 states and 266802 transitions. [2024-11-09 19:36:31,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:31,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 366 [2024-11-09 19:36:31,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:32,111 INFO L225 Difference]: With dead ends: 127015 [2024-11-09 19:36:32,111 INFO L226 Difference]: Without dead ends: 81632 [2024-11-09 19:36:32,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:36:32,140 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 1453 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 4662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:32,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 1140 Invalid, 4662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 19:36:32,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81632 states. [2024-11-09 19:36:33,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81632 to 79268. [2024-11-09 19:36:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79268 states, 79267 states have (on average 2.0418206819988143) internal successors, (161849), 79267 states have internal predecessors, (161849), 0 states have call successors, (0), 0 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 19:36:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79268 states to 79268 states and 161849 transitions. [2024-11-09 19:36:33,339 INFO L78 Accepts]: Start accepts. Automaton has 79268 states and 161849 transitions. Word has length 366 [2024-11-09 19:36:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:33,339 INFO L471 AbstractCegarLoop]: Abstraction has 79268 states and 161849 transitions. [2024-11-09 19:36:33,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 19:36:33,340 INFO L276 IsEmpty]: Start isEmpty. Operand 79268 states and 161849 transitions. [2024-11-09 19:36:33,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-09 19:36:33,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:33,348 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:33,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:36:33,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:36:33,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:33,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1849767585, now seen corresponding path program 1 times [2024-11-09 19:36:33,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:33,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318760570] [2024-11-09 19:36:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:34,241 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 19:36:34,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:34,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318760570] [2024-11-09 19:36:34,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318760570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:34,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:34,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:34,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347453056] [2024-11-09 19:36:34,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:34,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:34,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:34,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:34,242 INFO L87 Difference]: Start difference. First operand 79268 states and 161849 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 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 19:36:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:39,767 INFO L93 Difference]: Finished difference Result 193219 states and 397086 transitions. [2024-11-09 19:36:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:39,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 367 [2024-11-09 19:36:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:40,173 INFO L225 Difference]: With dead ends: 193219 [2024-11-09 19:36:40,173 INFO L226 Difference]: Without dead ends: 114741 [2024-11-09 19:36:40,200 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 19:36:40,201 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 1518 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 3871 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 4739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 3871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:40,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1059 Invalid, 4739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 3871 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 19:36:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114741 states. [2024-11-09 19:36:41,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114741 to 107637. [2024-11-09 19:36:41,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107637 states, 107636 states have (on average 2.0354992753353898) internal successors, (219093), 107636 states have internal predecessors, (219093), 0 states have call successors, (0), 0 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 19:36:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107637 states to 107637 states and 219093 transitions. [2024-11-09 19:36:41,955 INFO L78 Accepts]: Start accepts. Automaton has 107637 states and 219093 transitions. Word has length 367 [2024-11-09 19:36:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:41,955 INFO L471 AbstractCegarLoop]: Abstraction has 107637 states and 219093 transitions. [2024-11-09 19:36:41,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 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 19:36:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 107637 states and 219093 transitions. [2024-11-09 19:36:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-09 19:36:41,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:41,974 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, 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, 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] [2024-11-09 19:36:41,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:36:41,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:41,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash 881380768, now seen corresponding path program 1 times [2024-11-09 19:36:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:41,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215376267] [2024-11-09 19:36:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:41,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 19:36:42,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215376267] [2024-11-09 19:36:42,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215376267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:42,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:42,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:42,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063153436] [2024-11-09 19:36:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:42,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:42,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:42,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:42,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:42,366 INFO L87 Difference]: Start difference. First operand 107637 states and 219093 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 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 19:36:47,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:47,273 INFO L93 Difference]: Finished difference Result 222342 states and 451673 transitions. [2024-11-09 19:36:47,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:47,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 386 [2024-11-09 19:36:47,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:47,457 INFO L225 Difference]: With dead ends: 222342 [2024-11-09 19:36:47,457 INFO L226 Difference]: Without dead ends: 109187 [2024-11-09 19:36:47,511 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 19:36:47,512 INFO L432 NwaCegarLoop]: 2225 mSDtfsCounter, 1753 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 3780 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 3780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:47,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 2360 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 3780 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 19:36:47,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109187 states. [2024-11-09 19:36:48,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109187 to 100510. [2024-11-09 19:36:48,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100510 states, 100509 states have (on average 1.9955625864350457) internal successors, (200572), 100509 states have internal predecessors, (200572), 0 states have call successors, (0), 0 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 19:36:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100510 states to 100510 states and 200572 transitions. [2024-11-09 19:36:49,053 INFO L78 Accepts]: Start accepts. Automaton has 100510 states and 200572 transitions. Word has length 386 [2024-11-09 19:36:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:49,054 INFO L471 AbstractCegarLoop]: Abstraction has 100510 states and 200572 transitions. [2024-11-09 19:36:49,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 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 19:36:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand 100510 states and 200572 transitions. [2024-11-09 19:36:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-09 19:36:49,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:49,057 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:49,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:36:49,058 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:49,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2087474809, now seen corresponding path program 1 times [2024-11-09 19:36:49,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:49,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244353016] [2024-11-09 19:36:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 296 proven. 114 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-09 19:36:50,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244353016] [2024-11-09 19:36:50,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244353016] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:36:50,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431917293] [2024-11-09 19:36:50,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:50,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:36:50,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:36:51,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:36:51,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:36:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:51,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:36:51,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:36:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-09 19:36:51,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:36:51,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431917293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:51,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:36:51,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-09 19:36:51,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393761167] [2024-11-09 19:36:51,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:51,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:51,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:51,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:51,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:36:51,337 INFO L87 Difference]: Start difference. First operand 100510 states and 200572 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 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 19:36:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:36:55,926 INFO L93 Difference]: Finished difference Result 200228 states and 399632 transitions. [2024-11-09 19:36:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:36:55,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2024-11-09 19:36:55,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:36:56,078 INFO L225 Difference]: With dead ends: 200228 [2024-11-09 19:36:56,078 INFO L226 Difference]: Without dead ends: 100508 [2024-11-09 19:36:56,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:36:56,122 INFO L432 NwaCegarLoop]: 2051 mSDtfsCounter, 1827 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 3862 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 3862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:36:56,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 2131 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 3862 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 19:36:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100508 states. [2024-11-09 19:36:57,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100508 to 99719. [2024-11-09 19:36:57,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99719 states, 99718 states have (on average 1.9767945606610642) internal successors, (197122), 99718 states have internal predecessors, (197122), 0 states have call successors, (0), 0 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 19:36:57,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99719 states to 99719 states and 197122 transitions. [2024-11-09 19:36:57,816 INFO L78 Accepts]: Start accepts. Automaton has 99719 states and 197122 transitions. Word has length 395 [2024-11-09 19:36:57,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:36:57,817 INFO L471 AbstractCegarLoop]: Abstraction has 99719 states and 197122 transitions. [2024-11-09 19:36:57,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 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 19:36:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 99719 states and 197122 transitions. [2024-11-09 19:36:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-11-09 19:36:57,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:36:57,822 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:36:57,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:36:58,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 19:36:58,026 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:36:58,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:36:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1647919789, now seen corresponding path program 1 times [2024-11-09 19:36:58,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:36:58,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976252411] [2024-11-09 19:36:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:36:58,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:36:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:36:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-09 19:36:58,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:36:58,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976252411] [2024-11-09 19:36:58,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976252411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:36:58,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:36:58,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:36:58,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192947765] [2024-11-09 19:36:58,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:36:58,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:36:58,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:36:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:36:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:36:58,218 INFO L87 Difference]: Start difference. First operand 99719 states and 197122 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 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 19:37:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:37:03,865 INFO L93 Difference]: Finished difference Result 231757 states and 459630 transitions. [2024-11-09 19:37:03,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:37:03,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 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 426 [2024-11-09 19:37:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:37:04,048 INFO L225 Difference]: With dead ends: 231757 [2024-11-09 19:37:04,049 INFO L226 Difference]: Without dead ends: 132039 [2024-11-09 19:37:04,095 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 19:37:04,095 INFO L432 NwaCegarLoop]: 781 mSDtfsCounter, 1604 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3831 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 4746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 3831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:37:04,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 863 Invalid, 4746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 3831 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 19:37:04,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132039 states. [2024-11-09 19:37:05,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132039 to 129658. [2024-11-09 19:37:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129658 states, 129657 states have (on average 1.979723424111309) internal successors, (256685), 129657 states have internal predecessors, (256685), 0 states have call successors, (0), 0 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 19:37:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129658 states to 129658 states and 256685 transitions. [2024-11-09 19:37:05,939 INFO L78 Accepts]: Start accepts. Automaton has 129658 states and 256685 transitions. Word has length 426 [2024-11-09 19:37:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:37:05,940 INFO L471 AbstractCegarLoop]: Abstraction has 129658 states and 256685 transitions. [2024-11-09 19:37:05,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 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 19:37:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 129658 states and 256685 transitions. [2024-11-09 19:37:05,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-09 19:37:05,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:37:05,947 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-09 19:37:05,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:37:05,947 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:37:05,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:37:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash -220495285, now seen corresponding path program 1 times [2024-11-09 19:37:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:37:05,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844493193] [2024-11-09 19:37:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:37:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:37:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:37:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-09 19:37:06,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:37:06,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844493193] [2024-11-09 19:37:06,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844493193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:37:06,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:37:06,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:37:06,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461820959] [2024-11-09 19:37:06,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:37:06,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:37:06,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:37:06,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:37:06,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:37:06,909 INFO L87 Difference]: Start difference. First operand 129658 states and 256685 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)