./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash c55a8c69ce0e8314bfd7e0816f3c45b7211b264f59ab428d293ddf52e857d73b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:45:21,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:45:22,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 16:45:22,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:45:22,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:45:22,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:45:22,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:45:22,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:45:22,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:45:22,061 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:45:22,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:45:22,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:45:22,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:45:22,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:45:22,063 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:45:22,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:45:22,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:45:22,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:45:22,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:45:22,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:45:22,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:45:22,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:45:22,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:45:22,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:45:22,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:45:22,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:45:22,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:45:22,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:45:22,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:45:22,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:45:22,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:45:22,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:45:22,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:45:22,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:45:22,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:45:22,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:45:22,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:45:22,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:45:22,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:45:22,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c55a8c69ce0e8314bfd7e0816f3c45b7211b264f59ab428d293ddf52e857d73b [2024-11-18 16:45:22,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:45:22,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:45:22,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:45:22,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:45:22,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:45:22,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c [2024-11-18 16:45:23,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:45:24,251 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:45:24,252 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c [2024-11-18 16:45:24,276 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208fbde80/27959ca0c01a4e389162cc167207091f/FLAG11fda16da [2024-11-18 16:45:24,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/208fbde80/27959ca0c01a4e389162cc167207091f [2024-11-18 16:45:24,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:45:24,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:45:24,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:45:24,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:45:24,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:45:24,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:45:24" (1/1) ... [2024-11-18 16:45:24,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571a358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:24, skipping insertion in model container [2024-11-18 16:45:24,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:45:24" (1/1) ... [2024-11-18 16:45:24,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:45:24,616 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/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c[1261,1274] [2024-11-18 16:45:25,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:45:25,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:45:25,113 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/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c[1261,1274] [2024-11-18 16:45:25,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:45:25,351 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:45:25,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25 WrapperNode [2024-11-18 16:45:25,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:45:25,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:45:25,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:45:25,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:45:25,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:25,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,060 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5773 [2024-11-18 16:45:26,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:45:26,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:45:26,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:45:26,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:45:26,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,477 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]. [2024-11-18 16:45:26,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:26,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:27,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:45:27,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:45:27,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:45:27,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:45:27,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (1/1) ... [2024-11-18 16:45:27,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:45:27,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:45:27,176 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) [2024-11-18 16:45:27,196 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 [2024-11-18 16:45:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:45:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:45:27,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:45:27,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:45:27,752 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:45:27,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:45:32,565 INFO L? ?]: Removed 3802 outVars from TransFormulas that were not future-live. [2024-11-18 16:45:32,566 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:45:32,616 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:45:32,617 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 16:45:32,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:32 BoogieIcfgContainer [2024-11-18 16:45:32,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:45:32,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:45:32,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:45:32,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:45:32,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:45:24" (1/3) ... [2024-11-18 16:45:32,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51643a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:45:32, skipping insertion in model container [2024-11-18 16:45:32,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:45:25" (2/3) ... [2024-11-18 16:45:32,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51643a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:45:32, skipping insertion in model container [2024-11-18 16:45:32,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:45:32" (3/3) ... [2024-11-18 16:45:32,628 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_three.c [2024-11-18 16:45:32,645 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:45:32,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 16:45:32,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:45:32,760 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;@25c0c139, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:45:32,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 16:45:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 1394 states, 1392 states have (on average 1.4992816091954022) internal successors, (2087), 1393 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 16:45:32,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:32,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:32,794 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:32,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1907198655, now seen corresponding path program 1 times [2024-11-18 16:45:32,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:32,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890201102] [2024-11-18 16:45:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:32,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:34,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:34,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:34,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890201102] [2024-11-18 16:45:34,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890201102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:34,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:34,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:34,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5274103] [2024-11-18 16:45:34,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:34,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:34,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:34,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:34,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:34,179 INFO L87 Difference]: Start difference. First operand has 1394 states, 1392 states have (on average 1.4992816091954022) internal successors, (2087), 1393 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:34,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:34,340 INFO L93 Difference]: Finished difference Result 2617 states and 3921 transitions. [2024-11-18 16:45:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-18 16:45:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:34,369 INFO L225 Difference]: With dead ends: 2617 [2024-11-18 16:45:34,370 INFO L226 Difference]: Without dead ends: 1393 [2024-11-18 16:45:34,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:34,385 INFO L432 NwaCegarLoop]: 2081 mSDtfsCounter, 0 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6237 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:34,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6237 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:34,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-18 16:45:34,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2024-11-18 16:45:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.4978448275862069) internal successors, (2085), 1392 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 2085 transitions. [2024-11-18 16:45:34,497 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 2085 transitions. Word has length 127 [2024-11-18 16:45:34,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:34,498 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 2085 transitions. [2024-11-18 16:45:34,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:34,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 2085 transitions. [2024-11-18 16:45:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-18 16:45:34,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:34,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:34,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:45:34,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:34,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:34,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1008079785, now seen corresponding path program 1 times [2024-11-18 16:45:34,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:34,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634255815] [2024-11-18 16:45:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:34,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:35,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:35,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634255815] [2024-11-18 16:45:35,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634255815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:35,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:35,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:35,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944817653] [2024-11-18 16:45:35,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:35,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:35,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:35,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:35,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:35,033 INFO L87 Difference]: Start difference. First operand 1393 states and 2085 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:35,115 INFO L93 Difference]: Finished difference Result 2618 states and 3919 transitions. [2024-11-18 16:45:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:35,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-18 16:45:35,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:35,124 INFO L225 Difference]: With dead ends: 2618 [2024-11-18 16:45:35,124 INFO L226 Difference]: Without dead ends: 1395 [2024-11-18 16:45:35,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:35,128 INFO L432 NwaCegarLoop]: 2081 mSDtfsCounter, 0 mSDsluCounter, 4152 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6233 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:35,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6233 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2024-11-18 16:45:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1395. [2024-11-18 16:45:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1394 states have (on average 1.4971305595408895) internal successors, (2087), 1394 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2087 transitions. [2024-11-18 16:45:35,160 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2087 transitions. Word has length 128 [2024-11-18 16:45:35,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:35,161 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 2087 transitions. [2024-11-18 16:45:35,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2087 transitions. [2024-11-18 16:45:35,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 16:45:35,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:35,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:35,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:45:35,165 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:35,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash 87737114, now seen corresponding path program 1 times [2024-11-18 16:45:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052460297] [2024-11-18 16:45:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:35,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:35,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052460297] [2024-11-18 16:45:35,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052460297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:35,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:35,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:35,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817195810] [2024-11-18 16:45:35,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:35,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:35,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:35,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:35,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:35,853 INFO L87 Difference]: Start difference. First operand 1395 states and 2087 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:36,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:36,256 INFO L93 Difference]: Finished difference Result 2624 states and 3926 transitions. [2024-11-18 16:45:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:36,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-18 16:45:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:36,262 INFO L225 Difference]: With dead ends: 2624 [2024-11-18 16:45:36,262 INFO L226 Difference]: Without dead ends: 1399 [2024-11-18 16:45:36,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:45:36,267 INFO L432 NwaCegarLoop]: 2057 mSDtfsCounter, 1968 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 6164 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:36,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 6164 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 16:45:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-18 16:45:36,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1398. [2024-11-18 16:45:36,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1397 states have (on average 1.4960629921259843) internal successors, (2090), 1397 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2090 transitions. [2024-11-18 16:45:36,294 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2090 transitions. Word has length 129 [2024-11-18 16:45:36,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:36,295 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2090 transitions. [2024-11-18 16:45:36,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2090 transitions. [2024-11-18 16:45:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 16:45:36,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:36,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:36,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:45:36,298 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:36,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:36,298 INFO L85 PathProgramCache]: Analyzing trace with hash -10570868, now seen corresponding path program 1 times [2024-11-18 16:45:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:36,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767578105] [2024-11-18 16:45:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:36,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:37,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:37,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767578105] [2024-11-18 16:45:37,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767578105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:37,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:37,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:45:37,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815912382] [2024-11-18 16:45:37,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:37,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:45:37,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:37,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:45:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:37,448 INFO L87 Difference]: Start difference. First operand 1398 states and 2090 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:37,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:37,603 INFO L93 Difference]: Finished difference Result 2634 states and 3938 transitions. [2024-11-18 16:45:37,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:45:37,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-18 16:45:37,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:37,610 INFO L225 Difference]: With dead ends: 2634 [2024-11-18 16:45:37,611 INFO L226 Difference]: Without dead ends: 1406 [2024-11-18 16:45:37,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:37,614 INFO L432 NwaCegarLoop]: 2072 mSDtfsCounter, 12 mSDsluCounter, 10343 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12415 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:37,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12415 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2024-11-18 16:45:37,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1404. [2024-11-18 16:45:37,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 1.495367070563079) internal successors, (2098), 1403 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2098 transitions. [2024-11-18 16:45:37,644 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2098 transitions. Word has length 130 [2024-11-18 16:45:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:37,645 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 2098 transitions. [2024-11-18 16:45:37,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2098 transitions. [2024-11-18 16:45:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 16:45:37,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:37,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:37,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:45:37,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:37,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:37,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1703382737, now seen corresponding path program 1 times [2024-11-18 16:45:37,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:37,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315276847] [2024-11-18 16:45:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:37,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:38,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:38,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315276847] [2024-11-18 16:45:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315276847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:38,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:38,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:38,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358892389] [2024-11-18 16:45:38,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:38,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:38,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:38,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:38,343 INFO L87 Difference]: Start difference. First operand 1404 states and 2098 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:38,465 INFO L93 Difference]: Finished difference Result 2638 states and 3942 transitions. [2024-11-18 16:45:38,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:38,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-11-18 16:45:38,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:38,471 INFO L225 Difference]: With dead ends: 2638 [2024-11-18 16:45:38,472 INFO L226 Difference]: Without dead ends: 1404 [2024-11-18 16:45:38,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:38,475 INFO L432 NwaCegarLoop]: 2077 mSDtfsCounter, 6 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6221 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:38,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6221 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:38,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-11-18 16:45:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2024-11-18 16:45:38,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 1.4946543121881681) internal successors, (2097), 1403 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2097 transitions. [2024-11-18 16:45:38,510 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2097 transitions. Word has length 131 [2024-11-18 16:45:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:38,511 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 2097 transitions. [2024-11-18 16:45:38,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:38,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2097 transitions. [2024-11-18 16:45:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 16:45:38,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:38,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:38,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:45:38,514 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:38,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:38,515 INFO L85 PathProgramCache]: Analyzing trace with hash 985888954, now seen corresponding path program 1 times [2024-11-18 16:45:38,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:38,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159356274] [2024-11-18 16:45:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:39,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:39,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:39,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159356274] [2024-11-18 16:45:39,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159356274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:39,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:39,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:39,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385523641] [2024-11-18 16:45:39,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:39,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:39,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:39,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:39,254 INFO L87 Difference]: Start difference. First operand 1404 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:39,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:39,332 INFO L93 Difference]: Finished difference Result 2638 states and 3940 transitions. [2024-11-18 16:45:39,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:39,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-18 16:45:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:39,338 INFO L225 Difference]: With dead ends: 2638 [2024-11-18 16:45:39,338 INFO L226 Difference]: Without dead ends: 1404 [2024-11-18 16:45:39,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:39,344 INFO L432 NwaCegarLoop]: 2076 mSDtfsCounter, 6 mSDsluCounter, 4142 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6218 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:39,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6218 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-11-18 16:45:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2024-11-18 16:45:39,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 1.4939415538132572) internal successors, (2096), 1403 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2096 transitions. [2024-11-18 16:45:39,382 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2096 transitions. Word has length 132 [2024-11-18 16:45:39,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:39,382 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 2096 transitions. [2024-11-18 16:45:39,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:39,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2096 transitions. [2024-11-18 16:45:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 16:45:39,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:39,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:39,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:45:39,389 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:39,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:39,390 INFO L85 PathProgramCache]: Analyzing trace with hash -142620827, now seen corresponding path program 1 times [2024-11-18 16:45:39,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:39,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433172816] [2024-11-18 16:45:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:39,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:40,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:40,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433172816] [2024-11-18 16:45:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433172816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:40,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:40,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:45:40,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825909737] [2024-11-18 16:45:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:40,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:45:40,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:45:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:40,256 INFO L87 Difference]: Start difference. First operand 1404 states and 2096 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:40,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:40,387 INFO L93 Difference]: Finished difference Result 2646 states and 3950 transitions. [2024-11-18 16:45:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:45:40,388 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2024-11-18 16:45:40,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:40,393 INFO L225 Difference]: With dead ends: 2646 [2024-11-18 16:45:40,393 INFO L226 Difference]: Without dead ends: 1412 [2024-11-18 16:45:40,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:40,395 INFO L432 NwaCegarLoop]: 2071 mSDtfsCounter, 11 mSDsluCounter, 10338 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12409 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:40,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12409 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:40,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-18 16:45:40,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1410. [2024-11-18 16:45:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 1.4932576295244855) internal successors, (2104), 1409 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:40,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 2104 transitions. [2024-11-18 16:45:40,419 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 2104 transitions. Word has length 133 [2024-11-18 16:45:40,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:40,420 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 2104 transitions. [2024-11-18 16:45:40,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 2104 transitions. [2024-11-18 16:45:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-18 16:45:40,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:40,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:40,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:45:40,422 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:40,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:40,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1672994776, now seen corresponding path program 1 times [2024-11-18 16:45:40,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:40,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703294953] [2024-11-18 16:45:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:41,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:41,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703294953] [2024-11-18 16:45:41,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703294953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:41,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:41,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:45:41,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138636874] [2024-11-18 16:45:41,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:41,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:45:41,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:41,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:45:41,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:41,249 INFO L87 Difference]: Start difference. First operand 1410 states and 2104 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:41,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:41,382 INFO L93 Difference]: Finished difference Result 2658 states and 3966 transitions. [2024-11-18 16:45:41,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:45:41,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-18 16:45:41,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:41,388 INFO L225 Difference]: With dead ends: 2658 [2024-11-18 16:45:41,388 INFO L226 Difference]: Without dead ends: 1418 [2024-11-18 16:45:41,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:41,392 INFO L432 NwaCegarLoop]: 2070 mSDtfsCounter, 12 mSDsluCounter, 10333 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12403 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:41,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12403 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-18 16:45:41,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1416. [2024-11-18 16:45:41,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 1.4925795053003534) internal successors, (2112), 1415 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2112 transitions. [2024-11-18 16:45:41,425 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2112 transitions. Word has length 134 [2024-11-18 16:45:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:41,426 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 2112 transitions. [2024-11-18 16:45:41,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:41,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2112 transitions. [2024-11-18 16:45:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 16:45:41,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:41,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:41,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:45:41,428 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:41,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:41,429 INFO L85 PathProgramCache]: Analyzing trace with hash -338576034, now seen corresponding path program 1 times [2024-11-18 16:45:41,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:41,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966123313] [2024-11-18 16:45:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:41,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:41,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:41,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966123313] [2024-11-18 16:45:41,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966123313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:41,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:41,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:45:41,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096802329] [2024-11-18 16:45:41,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:41,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:45:41,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:42,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:45:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:45:42,001 INFO L87 Difference]: Start difference. First operand 1416 states and 2112 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:42,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:42,150 INFO L93 Difference]: Finished difference Result 2693 states and 4014 transitions. [2024-11-18 16:45:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:45:42,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-11-18 16:45:42,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:42,158 INFO L225 Difference]: With dead ends: 2693 [2024-11-18 16:45:42,158 INFO L226 Difference]: Without dead ends: 1447 [2024-11-18 16:45:42,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:45:42,162 INFO L432 NwaCegarLoop]: 2071 mSDtfsCounter, 20 mSDsluCounter, 10364 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12435 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:42,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12435 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:42,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-18 16:45:42,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1443. [2024-11-18 16:45:42,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.4909847434119279) internal successors, (2150), 1442 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2150 transitions. [2024-11-18 16:45:42,201 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2150 transitions. Word has length 135 [2024-11-18 16:45:42,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:42,202 INFO L471 AbstractCegarLoop]: Abstraction has 1443 states and 2150 transitions. [2024-11-18 16:45:42,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:42,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2150 transitions. [2024-11-18 16:45:42,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-18 16:45:42,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:42,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:42,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:45:42,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:42,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1620132883, now seen corresponding path program 1 times [2024-11-18 16:45:42,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:42,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156278959] [2024-11-18 16:45:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:42,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:42,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:42,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156278959] [2024-11-18 16:45:42,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156278959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:42,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:42,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 16:45:42,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232621190] [2024-11-18 16:45:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:42,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:45:42,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:45:42,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:42,849 INFO L87 Difference]: Start difference. First operand 1443 states and 2150 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:42,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:42,912 INFO L93 Difference]: Finished difference Result 2716 states and 4046 transitions. [2024-11-18 16:45:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:45:42,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2024-11-18 16:45:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:42,918 INFO L225 Difference]: With dead ends: 2716 [2024-11-18 16:45:42,918 INFO L226 Difference]: Without dead ends: 1443 [2024-11-18 16:45:42,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:45:42,921 INFO L432 NwaCegarLoop]: 2075 mSDtfsCounter, 6 mSDsluCounter, 4140 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6215 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:42,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6215 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:45:42,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2024-11-18 16:45:42,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2024-11-18 16:45:42,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.4902912621359223) internal successors, (2149), 1442 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:42,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2149 transitions. [2024-11-18 16:45:42,950 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2149 transitions. Word has length 135 [2024-11-18 16:45:42,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:42,951 INFO L471 AbstractCegarLoop]: Abstraction has 1443 states and 2149 transitions. [2024-11-18 16:45:42,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2149 transitions. [2024-11-18 16:45:42,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 16:45:42,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:42,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:42,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:45:42,953 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:42,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:42,953 INFO L85 PathProgramCache]: Analyzing trace with hash -59778837, now seen corresponding path program 1 times [2024-11-18 16:45:42,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:42,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891571119] [2024-11-18 16:45:42,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:42,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:43,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:43,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891571119] [2024-11-18 16:45:43,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891571119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:43,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:43,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704143834] [2024-11-18 16:45:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:43,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:43,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:43,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:43,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:43,565 INFO L87 Difference]: Start difference. First operand 1443 states and 2149 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:43,757 INFO L93 Difference]: Finished difference Result 2722 states and 4052 transitions. [2024-11-18 16:45:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:43,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-18 16:45:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:43,762 INFO L225 Difference]: With dead ends: 2722 [2024-11-18 16:45:43,763 INFO L226 Difference]: Without dead ends: 1449 [2024-11-18 16:45:43,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:45:43,765 INFO L432 NwaCegarLoop]: 2038 mSDtfsCounter, 1981 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:43,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 6106 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:43,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2024-11-18 16:45:43,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1449. [2024-11-18 16:45:43,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 1.4882596685082874) internal successors, (2155), 1448 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:43,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2155 transitions. [2024-11-18 16:45:43,795 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2155 transitions. Word has length 136 [2024-11-18 16:45:43,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:43,795 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 2155 transitions. [2024-11-18 16:45:43,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2155 transitions. [2024-11-18 16:45:43,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 16:45:43,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:43,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:43,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:45:43,798 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:43,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash 234516843, now seen corresponding path program 1 times [2024-11-18 16:45:43,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:43,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602962969] [2024-11-18 16:45:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:43,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:44,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:44,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602962969] [2024-11-18 16:45:44,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602962969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:44,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536536527] [2024-11-18 16:45:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:44,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:44,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:44,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:44,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:44,381 INFO L87 Difference]: Start difference. First operand 1449 states and 2155 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:44,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:44,564 INFO L93 Difference]: Finished difference Result 2731 states and 4060 transitions. [2024-11-18 16:45:44,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:44,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-18 16:45:44,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:44,570 INFO L225 Difference]: With dead ends: 2731 [2024-11-18 16:45:44,570 INFO L226 Difference]: Without dead ends: 1452 [2024-11-18 16:45:44,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:45:44,574 INFO L432 NwaCegarLoop]: 2038 mSDtfsCounter, 1993 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 6107 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:44,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 6107 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:44,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2024-11-18 16:45:44,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1452. [2024-11-18 16:45:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 1.487250172294969) internal successors, (2158), 1451 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:44,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 2158 transitions. [2024-11-18 16:45:44,607 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 2158 transitions. Word has length 136 [2024-11-18 16:45:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:44,607 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 2158 transitions. [2024-11-18 16:45:44,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 2158 transitions. [2024-11-18 16:45:44,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:44,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:44,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:44,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:45:44,610 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:44,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash -313764578, now seen corresponding path program 1 times [2024-11-18 16:45:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:44,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895423568] [2024-11-18 16:45:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:44,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:45,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:45,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895423568] [2024-11-18 16:45:45,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895423568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:45,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:45,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:45:45,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215990262] [2024-11-18 16:45:45,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:45,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:45:45,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:45:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:45:45,254 INFO L87 Difference]: Start difference. First operand 1452 states and 2158 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:45,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:45,378 INFO L93 Difference]: Finished difference Result 2765 states and 4106 transitions. [2024-11-18 16:45:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:45:45,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:45,384 INFO L225 Difference]: With dead ends: 2765 [2024-11-18 16:45:45,385 INFO L226 Difference]: Without dead ends: 1483 [2024-11-18 16:45:45,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:45:45,387 INFO L432 NwaCegarLoop]: 2069 mSDtfsCounter, 21 mSDsluCounter, 8313 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 10382 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:45,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 10382 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-11-18 16:45:45,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1479. [2024-11-18 16:45:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 1.4857916102841677) internal successors, (2196), 1478 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2196 transitions. [2024-11-18 16:45:45,417 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2196 transitions. Word has length 137 [2024-11-18 16:45:45,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:45,418 INFO L471 AbstractCegarLoop]: Abstraction has 1479 states and 2196 transitions. [2024-11-18 16:45:45,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2196 transitions. [2024-11-18 16:45:45,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:45,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:45,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:45,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:45:45,420 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:45,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:45,420 INFO L85 PathProgramCache]: Analyzing trace with hash -969422878, now seen corresponding path program 1 times [2024-11-18 16:45:45,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:45,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133056773] [2024-11-18 16:45:45,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:45,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:46,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:46,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133056773] [2024-11-18 16:45:46,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133056773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:46,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:46,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 16:45:46,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109768892] [2024-11-18 16:45:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:46,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 16:45:46,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:46,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 16:45:46,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:45:46,493 INFO L87 Difference]: Start difference. First operand 1479 states and 2196 transitions. Second operand has 17 states, 17 states have (on average 8.058823529411764) internal successors, (137), 17 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:47,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:47,466 INFO L93 Difference]: Finished difference Result 2876 states and 4259 transitions. [2024-11-18 16:45:47,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 16:45:47,466 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.058823529411764) internal successors, (137), 17 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:47,472 INFO L225 Difference]: With dead ends: 2876 [2024-11-18 16:45:47,472 INFO L226 Difference]: Without dead ends: 1567 [2024-11-18 16:45:47,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2024-11-18 16:45:47,475 INFO L432 NwaCegarLoop]: 2019 mSDtfsCounter, 2131 mSDsluCounter, 28232 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 30251 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:47,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 30251 Invalid, 962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 16:45:47,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-18 16:45:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1563. [2024-11-18 16:45:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 1.4801536491677336) internal successors, (2312), 1562 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2312 transitions. [2024-11-18 16:45:47,515 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2312 transitions. Word has length 137 [2024-11-18 16:45:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:47,516 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2312 transitions. [2024-11-18 16:45:47,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.058823529411764) internal successors, (137), 17 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2312 transitions. [2024-11-18 16:45:47,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:47,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:47,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:47,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:45:47,523 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:47,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:47,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1678734189, now seen corresponding path program 1 times [2024-11-18 16:45:47,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:47,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758374898] [2024-11-18 16:45:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:47,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:48,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:48,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758374898] [2024-11-18 16:45:48,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758374898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:48,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:48,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273370672] [2024-11-18 16:45:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:48,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:48,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:48,227 INFO L87 Difference]: Start difference. First operand 1563 states and 2312 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:48,439 INFO L93 Difference]: Finished difference Result 2965 states and 4382 transitions. [2024-11-18 16:45:48,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:48,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:48,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:48,445 INFO L225 Difference]: With dead ends: 2965 [2024-11-18 16:45:48,445 INFO L226 Difference]: Without dead ends: 1572 [2024-11-18 16:45:48,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:45:48,448 INFO L432 NwaCegarLoop]: 2038 mSDtfsCounter, 1966 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:48,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 6106 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-11-18 16:45:48,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2024-11-18 16:45:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 1.4774029280712921) internal successors, (2321), 1571 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2321 transitions. [2024-11-18 16:45:48,483 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2321 transitions. Word has length 137 [2024-11-18 16:45:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:48,484 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2321 transitions. [2024-11-18 16:45:48,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:48,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2321 transitions. [2024-11-18 16:45:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:48,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:48,486 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:48,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:45:48,487 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:48,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1105452614, now seen corresponding path program 1 times [2024-11-18 16:45:48,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:48,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053713006] [2024-11-18 16:45:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:48,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:49,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:49,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053713006] [2024-11-18 16:45:49,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053713006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:49,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:49,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044343272] [2024-11-18 16:45:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:49,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:49,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:49,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:49,185 INFO L87 Difference]: Start difference. First operand 1572 states and 2321 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:49,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:49,366 INFO L93 Difference]: Finished difference Result 2989 states and 4409 transitions. [2024-11-18 16:45:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:49,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:49,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:49,373 INFO L225 Difference]: With dead ends: 2989 [2024-11-18 16:45:49,373 INFO L226 Difference]: Without dead ends: 1587 [2024-11-18 16:45:49,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:45:49,375 INFO L432 NwaCegarLoop]: 2037 mSDtfsCounter, 1977 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:49,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 6104 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-11-18 16:45:49,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2024-11-18 16:45:49,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1586 states have (on average 1.474779319041614) internal successors, (2339), 1586 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:49,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2339 transitions. [2024-11-18 16:45:49,402 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2339 transitions. Word has length 137 [2024-11-18 16:45:49,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:49,402 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 2339 transitions. [2024-11-18 16:45:49,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2339 transitions. [2024-11-18 16:45:49,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:49,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:49,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:49,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:45:49,405 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:49,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:49,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1358313427, now seen corresponding path program 1 times [2024-11-18 16:45:49,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:49,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666935973] [2024-11-18 16:45:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:49,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:50,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666935973] [2024-11-18 16:45:50,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666935973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:50,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:50,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:45:50,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341242503] [2024-11-18 16:45:50,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:50,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:45:50,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:45:50,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:50,251 INFO L87 Difference]: Start difference. First operand 1587 states and 2339 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:53,034 INFO L93 Difference]: Finished difference Result 4220 states and 6212 transitions. [2024-11-18 16:45:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:45:53,034 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:53,050 INFO L225 Difference]: With dead ends: 4220 [2024-11-18 16:45:53,050 INFO L226 Difference]: Without dead ends: 2803 [2024-11-18 16:45:53,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:45:53,055 INFO L432 NwaCegarLoop]: 1490 mSDtfsCounter, 5097 mSDsluCounter, 4003 mSDsCounter, 0 mSdLazyCounter, 2825 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5097 SdHoareTripleChecker+Valid, 5493 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:53,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5097 Valid, 5493 Invalid, 2825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2825 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 16:45:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2024-11-18 16:45:53,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1617. [2024-11-18 16:45:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1616 states have (on average 1.4733910891089108) internal successors, (2381), 1616 states have internal predecessors, (2381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2381 transitions. [2024-11-18 16:45:53,094 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2381 transitions. Word has length 137 [2024-11-18 16:45:53,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:53,094 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2381 transitions. [2024-11-18 16:45:53,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:53,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2381 transitions. [2024-11-18 16:45:53,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:53,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:53,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:53,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:45:53,096 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:53,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:53,097 INFO L85 PathProgramCache]: Analyzing trace with hash -932007213, now seen corresponding path program 1 times [2024-11-18 16:45:53,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:53,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807552283] [2024-11-18 16:45:53,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:53,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:53,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:53,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807552283] [2024-11-18 16:45:53,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807552283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:53,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:53,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:45:53,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443009970] [2024-11-18 16:45:53,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:53,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:45:53,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:53,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:45:53,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:45:53,604 INFO L87 Difference]: Start difference. First operand 1617 states and 2381 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:53,786 INFO L93 Difference]: Finished difference Result 3063 states and 4507 transitions. [2024-11-18 16:45:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:45:53,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:53,797 INFO L225 Difference]: With dead ends: 3063 [2024-11-18 16:45:53,801 INFO L226 Difference]: Without dead ends: 1616 [2024-11-18 16:45:53,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:45:53,804 INFO L432 NwaCegarLoop]: 2037 mSDtfsCounter, 1989 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:53,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 6104 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:45:53,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-18 16:45:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-11-18 16:45:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.4724458204334365) internal successors, (2378), 1615 states have internal predecessors, (2378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:53,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2378 transitions. [2024-11-18 16:45:53,830 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2378 transitions. Word has length 137 [2024-11-18 16:45:53,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:53,830 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2378 transitions. [2024-11-18 16:45:53,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:53,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2378 transitions. [2024-11-18 16:45:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-18 16:45:53,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:53,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:53,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:45:53,832 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:53,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1906797420, now seen corresponding path program 1 times [2024-11-18 16:45:53,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:53,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99620979] [2024-11-18 16:45:53,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:53,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:54,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:54,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99620979] [2024-11-18 16:45:54,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99620979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:54,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:54,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:45:54,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524158325] [2024-11-18 16:45:54,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:54,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:45:54,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:54,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:45:54,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:45:54,476 INFO L87 Difference]: Start difference. First operand 1616 states and 2378 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:45:56,997 INFO L93 Difference]: Finished difference Result 4108 states and 6031 transitions. [2024-11-18 16:45:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:45:56,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-18 16:45:56,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:45:57,004 INFO L225 Difference]: With dead ends: 4108 [2024-11-18 16:45:57,004 INFO L226 Difference]: Without dead ends: 2662 [2024-11-18 16:45:57,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:45:57,007 INFO L432 NwaCegarLoop]: 2826 mSDtfsCounter, 3262 mSDsluCounter, 6127 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 8953 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:45:57,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 8953 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 16:45:57,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2024-11-18 16:45:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1647. [2024-11-18 16:45:57,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1646 states have (on average 1.4665856622114217) internal successors, (2414), 1646 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:57,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2414 transitions. [2024-11-18 16:45:57,042 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2414 transitions. Word has length 137 [2024-11-18 16:45:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:45:57,042 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2414 transitions. [2024-11-18 16:45:57,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:45:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2414 transitions. [2024-11-18 16:45:57,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:45:57,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:45:57,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:45:57,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:45:57,045 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:45:57,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:45:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash 332008933, now seen corresponding path program 1 times [2024-11-18 16:45:57,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:45:57,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488391935] [2024-11-18 16:45:57,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:45:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:45:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:45:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:45:59,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:45:59,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488391935] [2024-11-18 16:45:59,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488391935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:45:59,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:45:59,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-11-18 16:45:59,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840158442] [2024-11-18 16:45:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:45:59,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-18 16:45:59,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:45:59,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-18 16:45:59,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2024-11-18 16:45:59,533 INFO L87 Difference]: Start difference. First operand 1647 states and 2414 transitions. Second operand has 26 states, 26 states have (on average 5.3076923076923075) internal successors, (138), 26 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:01,886 INFO L93 Difference]: Finished difference Result 3155 states and 4614 transitions. [2024-11-18 16:46:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-18 16:46:01,887 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.3076923076923075) internal successors, (138), 26 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:01,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:01,891 INFO L225 Difference]: With dead ends: 3155 [2024-11-18 16:46:01,891 INFO L226 Difference]: Without dead ends: 1678 [2024-11-18 16:46:01,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=1147, Unknown=0, NotChecked=0, Total=1260 [2024-11-18 16:46:01,893 INFO L432 NwaCegarLoop]: 1991 mSDtfsCounter, 2111 mSDsluCounter, 43770 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 45761 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:01,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 45761 Invalid, 2100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 16:46:01,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2024-11-18 16:46:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1668. [2024-11-18 16:46:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1667 states have (on average 1.4649070185962807) internal successors, (2442), 1667 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:01,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2442 transitions. [2024-11-18 16:46:01,915 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2442 transitions. Word has length 138 [2024-11-18 16:46:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:01,915 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 2442 transitions. [2024-11-18 16:46:01,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.3076923076923075) internal successors, (138), 26 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2442 transitions. [2024-11-18 16:46:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:01,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:01,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:01,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:46:01,918 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:01,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash 902305120, now seen corresponding path program 1 times [2024-11-18 16:46:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38878203] [2024-11-18 16:46:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:02,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:02,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38878203] [2024-11-18 16:46:02,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38878203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:02,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:02,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:46:02,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886100556] [2024-11-18 16:46:02,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:02,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:46:02,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:02,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:46:02,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:46:02,480 INFO L87 Difference]: Start difference. First operand 1668 states and 2442 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:02,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:02,649 INFO L93 Difference]: Finished difference Result 3184 states and 4655 transitions. [2024-11-18 16:46:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:46:02,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:02,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:02,653 INFO L225 Difference]: With dead ends: 3184 [2024-11-18 16:46:02,653 INFO L226 Difference]: Without dead ends: 1686 [2024-11-18 16:46:02,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:46:02,656 INFO L432 NwaCegarLoop]: 2037 mSDtfsCounter, 1962 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 6103 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:02,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 6103 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:46:02,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-18 16:46:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1686. [2024-11-18 16:46:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1685 states have (on average 1.461721068249258) internal successors, (2463), 1685 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2463 transitions. [2024-11-18 16:46:02,691 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2463 transitions. Word has length 138 [2024-11-18 16:46:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:02,692 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2463 transitions. [2024-11-18 16:46:02,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2463 transitions. [2024-11-18 16:46:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:02,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:02,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:02,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 16:46:02,694 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:02,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:02,695 INFO L85 PathProgramCache]: Analyzing trace with hash 883022649, now seen corresponding path program 1 times [2024-11-18 16:46:02,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:02,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289978928] [2024-11-18 16:46:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:03,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289978928] [2024-11-18 16:46:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289978928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:03,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:03,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:46:03,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915344918] [2024-11-18 16:46:03,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:03,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:46:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:46:03,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:46:03,327 INFO L87 Difference]: Start difference. First operand 1686 states and 2463 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:05,293 INFO L93 Difference]: Finished difference Result 3981 states and 5807 transitions. [2024-11-18 16:46:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:46:05,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:05,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:05,301 INFO L225 Difference]: With dead ends: 3981 [2024-11-18 16:46:05,301 INFO L226 Difference]: Without dead ends: 2465 [2024-11-18 16:46:05,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:46:05,304 INFO L432 NwaCegarLoop]: 1670 mSDtfsCounter, 3940 mSDsluCounter, 4183 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3940 SdHoareTripleChecker+Valid, 5853 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:05,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3940 Valid, 5853 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 16:46:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2024-11-18 16:46:05,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1802. [2024-11-18 16:46:05,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1801 states have (on average 1.453081621321488) internal successors, (2617), 1801 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2617 transitions. [2024-11-18 16:46:05,332 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2617 transitions. Word has length 138 [2024-11-18 16:46:05,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:05,333 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2617 transitions. [2024-11-18 16:46:05,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2617 transitions. [2024-11-18 16:46:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:05,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:05,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:05,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 16:46:05,336 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:05,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:05,336 INFO L85 PathProgramCache]: Analyzing trace with hash -943614407, now seen corresponding path program 1 times [2024-11-18 16:46:05,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:05,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249684802] [2024-11-18 16:46:05,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:05,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:06,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:06,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:06,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249684802] [2024-11-18 16:46:06,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249684802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:06,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:06,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-18 16:46:06,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064313325] [2024-11-18 16:46:06,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:06,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 16:46:06,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:06,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 16:46:06,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-18 16:46:06,948 INFO L87 Difference]: Start difference. First operand 1802 states and 2617 transitions. Second operand has 19 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 19 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:07,723 INFO L93 Difference]: Finished difference Result 3463 states and 5017 transitions. [2024-11-18 16:46:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 16:46:07,724 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 19 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:07,728 INFO L225 Difference]: With dead ends: 3463 [2024-11-18 16:46:07,728 INFO L226 Difference]: Without dead ends: 1831 [2024-11-18 16:46:07,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2024-11-18 16:46:07,731 INFO L432 NwaCegarLoop]: 2023 mSDtfsCounter, 2072 mSDsluCounter, 30326 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 32349 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:07,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 32349 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 16:46:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-18 16:46:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1828. [2024-11-18 16:46:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1827 states have (on average 1.4504652435686918) internal successors, (2650), 1827 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2650 transitions. [2024-11-18 16:46:07,752 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2650 transitions. Word has length 138 [2024-11-18 16:46:07,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:07,752 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2650 transitions. [2024-11-18 16:46:07,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 19 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2650 transitions. [2024-11-18 16:46:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:07,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:07,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:07,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 16:46:07,755 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:07,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:07,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1486680690, now seen corresponding path program 1 times [2024-11-18 16:46:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:07,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868915448] [2024-11-18 16:46:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:07,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:08,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868915448] [2024-11-18 16:46:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868915448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:08,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:46:08,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382431942] [2024-11-18 16:46:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:08,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:46:08,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:08,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:46:08,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:46:08,382 INFO L87 Difference]: Start difference. First operand 1828 states and 2650 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:10,300 INFO L93 Difference]: Finished difference Result 4149 states and 6023 transitions. [2024-11-18 16:46:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:46:10,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:10,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:10,306 INFO L225 Difference]: With dead ends: 4149 [2024-11-18 16:46:10,306 INFO L226 Difference]: Without dead ends: 2491 [2024-11-18 16:46:10,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:46:10,309 INFO L432 NwaCegarLoop]: 1671 mSDtfsCounter, 3948 mSDsluCounter, 4184 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3948 SdHoareTripleChecker+Valid, 5855 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:10,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3948 Valid, 5855 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 16:46:10,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-18 16:46:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 1828. [2024-11-18 16:46:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1828 states, 1827 states have (on average 1.4466338259441707) internal successors, (2643), 1827 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2643 transitions. [2024-11-18 16:46:10,344 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2643 transitions. Word has length 138 [2024-11-18 16:46:10,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:10,345 INFO L471 AbstractCegarLoop]: Abstraction has 1828 states and 2643 transitions. [2024-11-18 16:46:10,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2643 transitions. [2024-11-18 16:46:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:10,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:10,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:10,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 16:46:10,348 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:10,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:10,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1043991250, now seen corresponding path program 1 times [2024-11-18 16:46:10,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:10,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188629221] [2024-11-18 16:46:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:10,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:10,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:10,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188629221] [2024-11-18 16:46:10,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188629221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:10,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:10,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 16:46:10,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360311910] [2024-11-18 16:46:10,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:10,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 16:46:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 16:46:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 16:46:10,993 INFO L87 Difference]: Start difference. First operand 1828 states and 2643 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:12,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:12,804 INFO L93 Difference]: Finished difference Result 4729 states and 6838 transitions. [2024-11-18 16:46:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 16:46:12,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:12,811 INFO L225 Difference]: With dead ends: 4729 [2024-11-18 16:46:12,812 INFO L226 Difference]: Without dead ends: 3071 [2024-11-18 16:46:12,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 16:46:12,815 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 5067 mSDsluCounter, 4026 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 5531 SdHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:12,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5067 Valid, 5531 Invalid, 2822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2822 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 16:46:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2024-11-18 16:46:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 1822. [2024-11-18 16:46:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1821 states have (on average 1.444810543657331) internal successors, (2631), 1821 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:12,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2631 transitions. [2024-11-18 16:46:12,847 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2631 transitions. Word has length 138 [2024-11-18 16:46:12,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:12,847 INFO L471 AbstractCegarLoop]: Abstraction has 1822 states and 2631 transitions. [2024-11-18 16:46:12,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2631 transitions. [2024-11-18 16:46:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:12,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:12,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:12,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 16:46:12,850 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:12,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1251795090, now seen corresponding path program 1 times [2024-11-18 16:46:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650097059] [2024-11-18 16:46:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:12,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:13,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:13,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650097059] [2024-11-18 16:46:13,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650097059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:13,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:13,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:46:13,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651866926] [2024-11-18 16:46:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:13,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:46:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:46:13,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:46:13,413 INFO L87 Difference]: Start difference. First operand 1822 states and 2631 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:16,027 INFO L93 Difference]: Finished difference Result 4699 states and 6790 transitions. [2024-11-18 16:46:16,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:46:16,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:16,032 INFO L225 Difference]: With dead ends: 4699 [2024-11-18 16:46:16,032 INFO L226 Difference]: Without dead ends: 3047 [2024-11-18 16:46:16,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:46:16,035 INFO L432 NwaCegarLoop]: 3006 mSDtfsCounter, 3530 mSDsluCounter, 8726 mSDsCounter, 0 mSdLazyCounter, 4833 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3530 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 4834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:16,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3530 Valid, 11732 Invalid, 4834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4833 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 16:46:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2024-11-18 16:46:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 1933. [2024-11-18 16:46:16,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1932 states have (on average 1.4296066252587991) internal successors, (2762), 1932 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:16,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2762 transitions. [2024-11-18 16:46:16,062 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2762 transitions. Word has length 138 [2024-11-18 16:46:16,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:16,063 INFO L471 AbstractCegarLoop]: Abstraction has 1933 states and 2762 transitions. [2024-11-18 16:46:16,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:16,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2762 transitions. [2024-11-18 16:46:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:16,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:16,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:16,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 16:46:16,065 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:16,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:16,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1242103233, now seen corresponding path program 1 times [2024-11-18 16:46:16,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:16,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730632534] [2024-11-18 16:46:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:16,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:16,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:16,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730632534] [2024-11-18 16:46:16,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730632534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:16,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:16,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:46:16,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290648559] [2024-11-18 16:46:16,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:16,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:46:16,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:16,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:46:16,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:46:16,637 INFO L87 Difference]: Start difference. First operand 1933 states and 2762 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:18,643 INFO L93 Difference]: Finished difference Result 4828 states and 6900 transitions. [2024-11-18 16:46:18,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:46:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:18,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:18,649 INFO L225 Difference]: With dead ends: 4828 [2024-11-18 16:46:18,649 INFO L226 Difference]: Without dead ends: 3065 [2024-11-18 16:46:18,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:46:18,653 INFO L432 NwaCegarLoop]: 2826 mSDtfsCounter, 3239 mSDsluCounter, 6127 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 8953 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:18,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 8953 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 16:46:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2024-11-18 16:46:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2214. [2024-11-18 16:46:18,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2214 states, 2213 states have (on average 1.4103027564392228) internal successors, (3121), 2213 states have internal predecessors, (3121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 3121 transitions. [2024-11-18 16:46:18,683 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 3121 transitions. Word has length 138 [2024-11-18 16:46:18,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:18,684 INFO L471 AbstractCegarLoop]: Abstraction has 2214 states and 3121 transitions. [2024-11-18 16:46:18,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 3121 transitions. [2024-11-18 16:46:18,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-18 16:46:18,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:18,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:18,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 16:46:18,687 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:18,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:18,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2008359032, now seen corresponding path program 1 times [2024-11-18 16:46:18,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:18,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628952347] [2024-11-18 16:46:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:19,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:19,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628952347] [2024-11-18 16:46:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628952347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:19,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:19,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 16:46:19,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706942950] [2024-11-18 16:46:19,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:19,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 16:46:19,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:19,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 16:46:19,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 16:46:19,208 INFO L87 Difference]: Start difference. First operand 2214 states and 3121 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:20,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:20,936 INFO L93 Difference]: Finished difference Result 4916 states and 6958 transitions. [2024-11-18 16:46:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 16:46:20,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-18 16:46:20,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:20,941 INFO L225 Difference]: With dead ends: 4916 [2024-11-18 16:46:20,941 INFO L226 Difference]: Without dead ends: 2872 [2024-11-18 16:46:20,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-18 16:46:20,944 INFO L432 NwaCegarLoop]: 2638 mSDtfsCounter, 2967 mSDsluCounter, 5758 mSDsCounter, 0 mSdLazyCounter, 2864 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 8396 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:20,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 8396 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2864 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-18 16:46:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2024-11-18 16:46:20,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2185. [2024-11-18 16:46:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 2184 states have (on average 1.408882783882784) internal successors, (3077), 2184 states have internal predecessors, (3077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 3077 transitions. [2024-11-18 16:46:20,973 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 3077 transitions. Word has length 138 [2024-11-18 16:46:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:20,974 INFO L471 AbstractCegarLoop]: Abstraction has 2185 states and 3077 transitions. [2024-11-18 16:46:20,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 3077 transitions. [2024-11-18 16:46:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 16:46:20,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:20,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:20,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 16:46:20,977 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:20,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1028079071, now seen corresponding path program 1 times [2024-11-18 16:46:20,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:20,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497007973] [2024-11-18 16:46:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:20,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:22,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:22,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497007973] [2024-11-18 16:46:22,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497007973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:22,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:22,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-18 16:46:22,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300887651] [2024-11-18 16:46:22,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:22,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 16:46:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:22,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 16:46:22,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-18 16:46:22,714 INFO L87 Difference]: Start difference. First operand 2185 states and 3077 transitions. Second operand has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 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) [2024-11-18 16:46:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:23,629 INFO L93 Difference]: Finished difference Result 4206 states and 5906 transitions. [2024-11-18 16:46:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 16:46:23,630 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 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 [2024-11-18 16:46:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:23,635 INFO L225 Difference]: With dead ends: 4206 [2024-11-18 16:46:23,635 INFO L226 Difference]: Without dead ends: 2191 [2024-11-18 16:46:23,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2024-11-18 16:46:23,642 INFO L432 NwaCegarLoop]: 2016 mSDtfsCounter, 2136 mSDsluCounter, 38256 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 40272 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:23,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 40272 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 16:46:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2024-11-18 16:46:23,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2184. [2024-11-18 16:46:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 2183 states have (on average 1.408612001832341) internal successors, (3075), 2183 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3075 transitions. [2024-11-18 16:46:23,668 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3075 transitions. Word has length 139 [2024-11-18 16:46:23,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:23,668 INFO L471 AbstractCegarLoop]: Abstraction has 2184 states and 3075 transitions. [2024-11-18 16:46:23,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 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) [2024-11-18 16:46:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3075 transitions. [2024-11-18 16:46:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 16:46:23,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:23,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:23,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 16:46:23,672 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:23,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:23,673 INFO L85 PathProgramCache]: Analyzing trace with hash 601556506, now seen corresponding path program 1 times [2024-11-18 16:46:23,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:23,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921797163] [2024-11-18 16:46:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:23,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:46:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:46:24,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:46:24,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921797163] [2024-11-18 16:46:24,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921797163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:46:24,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:46:24,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 16:46:24,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379488199] [2024-11-18 16:46:24,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:46:24,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 16:46:24,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:46:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 16:46:24,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 16:46:24,446 INFO L87 Difference]: Start difference. First operand 2184 states and 3075 transitions. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 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) [2024-11-18 16:46:26,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:46:26,366 INFO L93 Difference]: Finished difference Result 5535 states and 7805 transitions. [2024-11-18 16:46:26,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 16:46:26,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 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 [2024-11-18 16:46:26,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:46:26,370 INFO L225 Difference]: With dead ends: 5535 [2024-11-18 16:46:26,370 INFO L226 Difference]: Without dead ends: 3521 [2024-11-18 16:46:26,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-18 16:46:26,373 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 6125 mSDsluCounter, 5256 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6125 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 16:46:26,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6125 Valid, 6818 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 16:46:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3521 states. [2024-11-18 16:46:26,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3521 to 2548. [2024-11-18 16:46:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2547 states have (on average 1.3890851982724775) internal successors, (3538), 2547 states have internal predecessors, (3538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:46:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3538 transitions. [2024-11-18 16:46:26,405 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3538 transitions. Word has length 139 [2024-11-18 16:46:26,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:46:26,405 INFO L471 AbstractCegarLoop]: Abstraction has 2548 states and 3538 transitions. [2024-11-18 16:46:26,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 8 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) [2024-11-18 16:46:26,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3538 transitions. [2024-11-18 16:46:26,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 16:46:26,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:46:26,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:46:26,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 16:46:26,406 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:46:26,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:46:26,407 INFO L85 PathProgramCache]: Analyzing trace with hash -672841258, now seen corresponding path program 1 times [2024-11-18 16:46:26,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:46:26,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399916363] [2024-11-18 16:46:26,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:46:26,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:46:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat