./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.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 cb83f5d7087c4b0d43604a15de3bb5b701cd940862e59390412bf16eeaebebc9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:22:43,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:22:43,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 00:22:43,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:22:43,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:22:43,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:22:43,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:22:43,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:22:43,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:22:43,842 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:22:43,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:22:43,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:22:43,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:22:43,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:22:43,844 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:22:43,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:22:43,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:22:43,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:22:43,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:22:43,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:22:43,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:22:43,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:22:43,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:22:43,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:22:43,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:22:43,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:22:43,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:22:43,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:22:43,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:22:43,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:22:43,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:22:43,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:22:43,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:22:43,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:22:43,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:22:43,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:22:43,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:22:43,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:22:43,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:22:43,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb83f5d7087c4b0d43604a15de3bb5b701cd940862e59390412bf16eeaebebc9 [2024-11-20 00:22:44,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:22:44,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:22:44,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:22:44,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:22:44,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:22:44,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2024-11-20 00:22:45,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:22:45,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:22:45,919 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2024-11-20 00:22:45,936 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34535edac/dad89ac009f54adcb245541751e6aa08/FLAG5e8be89af [2024-11-20 00:22:45,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34535edac/dad89ac009f54adcb245541751e6aa08 [2024-11-20 00:22:45,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:22:45,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:22:45,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:22:45,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:22:45,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:22:45,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:22:45" (1/1) ... [2024-11-20 00:22:45,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543e1307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:45, skipping insertion in model container [2024-11-20 00:22:45,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:22:45" (1/1) ... [2024-11-20 00:22:46,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:22:46,283 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.arbitrated_top_n2_w16_d8_e0.c[1270,1283] [2024-11-20 00:22:46,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:22:46,551 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:22:46,563 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.arbitrated_top_n2_w16_d8_e0.c[1270,1283] [2024-11-20 00:22:46,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:22:46,702 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:22:46,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46 WrapperNode [2024-11-20 00:22:46,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:22:46,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:22:46,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:22:46,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:22:46,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:46,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,139 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2959 [2024-11-20 00:22:47,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:22:47,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:22:47,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:22:47,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:22:47,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,391 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]. [2024-11-20 00:22:47,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:22:47,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:22:47,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:22:47,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:22:47,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (1/1) ... [2024-11-20 00:22:47,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:22:47,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:22:47,642 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) [2024-11-20 00:22:47,646 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 [2024-11-20 00:22:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:22:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 00:22:47,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 00:22:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:22:47,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:22:47,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:22:48,000 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:22:48,002 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:22:51,283 INFO L? ?]: Removed 1620 outVars from TransFormulas that were not future-live. [2024-11-20 00:22:51,283 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:22:51,326 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:22:51,329 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 00:22:51,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:22:51 BoogieIcfgContainer [2024-11-20 00:22:51,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:22:51,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:22:51,332 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:22:51,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:22:51,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:22:45" (1/3) ... [2024-11-20 00:22:51,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d40e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:22:51, skipping insertion in model container [2024-11-20 00:22:51,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:22:46" (2/3) ... [2024-11-20 00:22:51,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d40e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:22:51, skipping insertion in model container [2024-11-20 00:22:51,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:22:51" (3/3) ... [2024-11-20 00:22:51,339 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w16_d8_e0.c [2024-11-20 00:22:51,359 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:22:51,360 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 00:22:51,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:22:51,469 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;@d1b0769, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:22:51,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 00:22:51,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 904 states, 894 states have (on average 1.494407158836689) internal successors, (1336), 895 states have internal predecessors, (1336), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-20 00:22:51,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:51,522 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:51,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:51,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:51,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1320814492, now seen corresponding path program 1 times [2024-11-20 00:22:51,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:51,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556911992] [2024-11-20 00:22:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:51,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:22:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:22:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:22:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:22:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:22:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:22:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:22:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:22:52,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:22:52,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556911992] [2024-11-20 00:22:52,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556911992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:22:52,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:22:52,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 00:22:52,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790977601] [2024-11-20 00:22:52,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:22:52,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 00:22:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:22:52,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 00:22:52,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 00:22:52,341 INFO L87 Difference]: Start difference. First operand has 904 states, 894 states have (on average 1.494407158836689) internal successors, (1336), 895 states have internal predecessors, (1336), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:22:52,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:22:52,443 INFO L93 Difference]: Finished difference Result 1687 states and 2529 transitions. [2024-11-20 00:22:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 00:22:52,445 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 327 [2024-11-20 00:22:52,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:22:52,469 INFO L225 Difference]: With dead ends: 1687 [2024-11-20 00:22:52,470 INFO L226 Difference]: Without dead ends: 901 [2024-11-20 00:22:52,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 00:22:52,484 INFO L432 NwaCegarLoop]: 1345 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:22:52,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:22:52,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-20 00:22:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2024-11-20 00:22:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 892 states have (on average 1.492152466367713) internal successors, (1331), 892 states have internal predecessors, (1331), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1345 transitions. [2024-11-20 00:22:52,592 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1345 transitions. Word has length 327 [2024-11-20 00:22:52,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:22:52,594 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1345 transitions. [2024-11-20 00:22:52,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:22:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1345 transitions. [2024-11-20 00:22:52,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-20 00:22:52,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:52,602 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:52,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:22:52,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:52,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:52,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1464440598, now seen corresponding path program 1 times [2024-11-20 00:22:52,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:52,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145432761] [2024-11-20 00:22:52,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:52,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:22:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:22:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:22:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:22:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:22:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:22:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:22:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:22:54,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:22:54,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145432761] [2024-11-20 00:22:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145432761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:22:54,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:22:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:22:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892221041] [2024-11-20 00:22:54,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:22:54,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:22:54,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:22:54,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:22:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:22:54,289 INFO L87 Difference]: Start difference. First operand 901 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:22:54,337 INFO L93 Difference]: Finished difference Result 905 states and 1349 transitions. [2024-11-20 00:22:54,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:22:54,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 327 [2024-11-20 00:22:54,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:22:54,345 INFO L225 Difference]: With dead ends: 905 [2024-11-20 00:22:54,345 INFO L226 Difference]: Without dead ends: 903 [2024-11-20 00:22:54,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:22:54,346 INFO L432 NwaCegarLoop]: 1343 mSDtfsCounter, 0 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4023 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 [2024-11-20 00:22:54,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4023 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:22:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-20 00:22:54,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2024-11-20 00:22:54,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 894 states have (on average 1.4910514541387025) internal successors, (1333), 894 states have internal predecessors, (1333), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:54,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1347 transitions. [2024-11-20 00:22:54,368 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1347 transitions. Word has length 327 [2024-11-20 00:22:54,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:22:54,372 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1347 transitions. [2024-11-20 00:22:54,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:54,372 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1347 transitions. [2024-11-20 00:22:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-20 00:22:54,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:54,377 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:54,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:22:54,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:54,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1845284731, now seen corresponding path program 1 times [2024-11-20 00:22:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:54,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60899532] [2024-11-20 00:22:54,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:54,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:22:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:22:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:22:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:22:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:22:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:22:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:22:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:22:55,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:22:55,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60899532] [2024-11-20 00:22:55,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60899532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:22:55,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:22:55,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:22:55,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47421267] [2024-11-20 00:22:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:22:55,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:22:55,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:22:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:22:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:22:55,284 INFO L87 Difference]: Start difference. First operand 903 states and 1347 transitions. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:55,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:22:55,959 INFO L93 Difference]: Finished difference Result 2351 states and 3511 transitions. [2024-11-20 00:22:55,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:22:55,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 328 [2024-11-20 00:22:55,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:22:55,964 INFO L225 Difference]: With dead ends: 2351 [2024-11-20 00:22:55,964 INFO L226 Difference]: Without dead ends: 903 [2024-11-20 00:22:55,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:22:55,968 INFO L432 NwaCegarLoop]: 1441 mSDtfsCounter, 2720 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:22:55,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2720 Valid, 3935 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:22:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-20 00:22:55,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2024-11-20 00:22:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 894 states have (on average 1.4899328859060403) internal successors, (1332), 894 states have internal predecessors, (1332), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1346 transitions. [2024-11-20 00:22:55,992 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1346 transitions. Word has length 328 [2024-11-20 00:22:55,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:22:55,993 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1346 transitions. [2024-11-20 00:22:55,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1346 transitions. [2024-11-20 00:22:55,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-20 00:22:55,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:55,998 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:55,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:22:55,999 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:55,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:55,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1358665257, now seen corresponding path program 1 times [2024-11-20 00:22:56,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:56,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843909758] [2024-11-20 00:22:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:56,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:22:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:22:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:22:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:22:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:22:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:22:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:22:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:22:56,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:22:56,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843909758] [2024-11-20 00:22:56,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843909758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:22:56,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:22:56,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:22:56,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079413517] [2024-11-20 00:22:56,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:22:56,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:22:56,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:22:56,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:22:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:22:56,920 INFO L87 Difference]: Start difference. First operand 903 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:57,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:22:57,524 INFO L93 Difference]: Finished difference Result 1688 states and 2516 transitions. [2024-11-20 00:22:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:22:57,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 329 [2024-11-20 00:22:57,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:22:57,530 INFO L225 Difference]: With dead ends: 1688 [2024-11-20 00:22:57,530 INFO L226 Difference]: Without dead ends: 903 [2024-11-20 00:22:57,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:22:57,533 INFO L432 NwaCegarLoop]: 1031 mSDtfsCounter, 1256 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:22:57,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 2075 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:22:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-20 00:22:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2024-11-20 00:22:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 894 states have (on average 1.4888143176733781) internal successors, (1331), 894 states have internal predecessors, (1331), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:57,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1345 transitions. [2024-11-20 00:22:57,550 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1345 transitions. Word has length 329 [2024-11-20 00:22:57,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:22:57,551 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1345 transitions. [2024-11-20 00:22:57,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1345 transitions. [2024-11-20 00:22:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-20 00:22:57,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:57,556 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:57,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:22:57,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:57,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:57,557 INFO L85 PathProgramCache]: Analyzing trace with hash 462534746, now seen corresponding path program 1 times [2024-11-20 00:22:57,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:57,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025273312] [2024-11-20 00:22:57,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:57,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:22:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:22:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:22:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:22:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:22:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:22:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:22:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:22:58,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:22:58,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025273312] [2024-11-20 00:22:58,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025273312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:22:58,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:22:58,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:22:58,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279183144] [2024-11-20 00:22:58,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:22:58,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:22:58,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:22:58,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:22:58,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:22:58,254 INFO L87 Difference]: Start difference. First operand 903 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:58,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:22:58,308 INFO L93 Difference]: Finished difference Result 1690 states and 2517 transitions. [2024-11-20 00:22:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:22:58,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 330 [2024-11-20 00:22:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:22:58,314 INFO L225 Difference]: With dead ends: 1690 [2024-11-20 00:22:58,314 INFO L226 Difference]: Without dead ends: 905 [2024-11-20 00:22:58,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:22:58,318 INFO L432 NwaCegarLoop]: 1341 mSDtfsCounter, 0 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4013 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 [2024-11-20 00:22:58,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4013 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:22:58,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-20 00:22:58,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-11-20 00:22:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4877232142857142) internal successors, (1333), 896 states have internal predecessors, (1333), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1347 transitions. [2024-11-20 00:22:58,337 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1347 transitions. Word has length 330 [2024-11-20 00:22:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:22:58,338 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1347 transitions. [2024-11-20 00:22:58,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1347 transitions. [2024-11-20 00:22:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-20 00:22:58,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:58,343 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:58,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:22:58,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:58,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:58,344 INFO L85 PathProgramCache]: Analyzing trace with hash 355711130, now seen corresponding path program 1 times [2024-11-20 00:22:58,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:58,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517431293] [2024-11-20 00:22:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:58,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:22:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:22:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:22:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:22:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:22:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:22:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:22:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:22:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:22:59,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:22:59,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517431293] [2024-11-20 00:22:59,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517431293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:22:59,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:22:59,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:22:59,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150083505] [2024-11-20 00:22:59,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:22:59,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:22:59,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:22:59,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:22:59,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:22:59,268 INFO L87 Difference]: Start difference. First operand 905 states and 1347 transitions. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:59,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:22:59,409 INFO L93 Difference]: Finished difference Result 1692 states and 2518 transitions. [2024-11-20 00:22:59,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:22:59,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 331 [2024-11-20 00:22:59,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:22:59,413 INFO L225 Difference]: With dead ends: 1692 [2024-11-20 00:22:59,413 INFO L226 Difference]: Without dead ends: 905 [2024-11-20 00:22:59,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:22:59,417 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 1111 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:22:59,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2580 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:22:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-20 00:22:59,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-11-20 00:22:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4854910714285714) internal successors, (1331), 896 states have internal predecessors, (1331), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:22:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1345 transitions. [2024-11-20 00:22:59,441 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1345 transitions. Word has length 331 [2024-11-20 00:22:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:22:59,442 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1345 transitions. [2024-11-20 00:22:59,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:22:59,443 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1345 transitions. [2024-11-20 00:22:59,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-20 00:22:59,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:22:59,447 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:22:59,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:22:59,448 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:22:59,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:22:59,448 INFO L85 PathProgramCache]: Analyzing trace with hash -781815369, now seen corresponding path program 1 times [2024-11-20 00:22:59,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:22:59,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450090185] [2024-11-20 00:22:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:22:59,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:22:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:23:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:23:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:23:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:23:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:23:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:00,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450090185] [2024-11-20 00:23:00,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450090185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:00,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:00,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:00,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416897736] [2024-11-20 00:23:00,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:00,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:00,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:00,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:00,148 INFO L87 Difference]: Start difference. First operand 905 states and 1345 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:00,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:00,326 INFO L93 Difference]: Finished difference Result 1826 states and 2713 transitions. [2024-11-20 00:23:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:23:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 333 [2024-11-20 00:23:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:00,331 INFO L225 Difference]: With dead ends: 1826 [2024-11-20 00:23:00,331 INFO L226 Difference]: Without dead ends: 905 [2024-11-20 00:23:00,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:00,333 INFO L432 NwaCegarLoop]: 1330 mSDtfsCounter, 1504 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:00,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 3957 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-20 00:23:00,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-11-20 00:23:00,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.484375) internal successors, (1330), 896 states have internal predecessors, (1330), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:23:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1344 transitions. [2024-11-20 00:23:00,351 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1344 transitions. Word has length 333 [2024-11-20 00:23:00,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:00,351 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1344 transitions. [2024-11-20 00:23:00,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1344 transitions. [2024-11-20 00:23:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-20 00:23:00,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:00,356 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:00,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:23:00,356 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:00,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash 244330828, now seen corresponding path program 1 times [2024-11-20 00:23:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:00,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950515402] [2024-11-20 00:23:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:23:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:23:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:23:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:23:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:23:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:00,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:00,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950515402] [2024-11-20 00:23:00,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950515402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:00,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:00,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:00,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778109893] [2024-11-20 00:23:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:00,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:00,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:00,990 INFO L87 Difference]: Start difference. First operand 905 states and 1344 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:01,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:01,138 INFO L93 Difference]: Finished difference Result 1692 states and 2512 transitions. [2024-11-20 00:23:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:01,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 334 [2024-11-20 00:23:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:01,145 INFO L225 Difference]: With dead ends: 1692 [2024-11-20 00:23:01,146 INFO L226 Difference]: Without dead ends: 905 [2024-11-20 00:23:01,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:01,149 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 1320 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:01,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 2591 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-20 00:23:01,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-11-20 00:23:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4832589285714286) internal successors, (1329), 896 states have internal predecessors, (1329), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:23:01,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1343 transitions. [2024-11-20 00:23:01,171 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1343 transitions. Word has length 334 [2024-11-20 00:23:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:01,171 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1343 transitions. [2024-11-20 00:23:01,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:01,172 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1343 transitions. [2024-11-20 00:23:01,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-20 00:23:01,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:01,176 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:01,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 00:23:01,177 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:01,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:01,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1149265986, now seen corresponding path program 1 times [2024-11-20 00:23:01,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:01,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786125121] [2024-11-20 00:23:01,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:01,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:23:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:23:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:23:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:23:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:23:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:02,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786125121] [2024-11-20 00:23:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786125121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:02,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889754232] [2024-11-20 00:23:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:02,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:02,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:02,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:02,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:02,073 INFO L87 Difference]: Start difference. First operand 905 states and 1343 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:02,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:02,225 INFO L93 Difference]: Finished difference Result 1692 states and 2510 transitions. [2024-11-20 00:23:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:02,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 335 [2024-11-20 00:23:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:02,231 INFO L225 Difference]: With dead ends: 1692 [2024-11-20 00:23:02,231 INFO L226 Difference]: Without dead ends: 905 [2024-11-20 00:23:02,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:02,234 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 2345 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:02,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2580 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:02,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-20 00:23:02,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2024-11-20 00:23:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 896 states have (on average 1.4821428571428572) internal successors, (1328), 896 states have internal predecessors, (1328), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-20 00:23:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1342 transitions. [2024-11-20 00:23:02,258 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1342 transitions. Word has length 335 [2024-11-20 00:23:02,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:02,259 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1342 transitions. [2024-11-20 00:23:02,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1342 transitions. [2024-11-20 00:23:02,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-20 00:23:02,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:02,266 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:02,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:23:02,267 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:02,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:02,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1058526955, now seen corresponding path program 1 times [2024-11-20 00:23:02,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:02,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847765562] [2024-11-20 00:23:02,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:02,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:03,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:03,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:03,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 00:23:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:03,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-20 00:23:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:03,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-20 00:23:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:03,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-20 00:23:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:04,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 00:23:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:04,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:04,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847765562] [2024-11-20 00:23:04,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847765562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:04,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:04,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:23:04,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81229869] [2024-11-20 00:23:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:04,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:23:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:23:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:04,006 INFO L87 Difference]: Start difference. First operand 905 states and 1342 transitions. Second operand has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:04,499 INFO L93 Difference]: Finished difference Result 2564 states and 3803 transitions. [2024-11-20 00:23:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 336 [2024-11-20 00:23:04,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:04,506 INFO L225 Difference]: With dead ends: 2564 [2024-11-20 00:23:04,506 INFO L226 Difference]: Without dead ends: 1677 [2024-11-20 00:23:04,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:23:04,509 INFO L432 NwaCegarLoop]: 1392 mSDtfsCounter, 1229 mSDsluCounter, 5151 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:04,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 6543 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:23:04,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-20 00:23:04,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 964. [2024-11-20 00:23:04,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 953 states have (on average 1.4805876180482687) internal successors, (1411), 953 states have internal predecessors, (1411), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 00:23:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1429 transitions. [2024-11-20 00:23:04,533 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1429 transitions. Word has length 336 [2024-11-20 00:23:04,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:04,533 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1429 transitions. [2024-11-20 00:23:04,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:04,534 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1429 transitions. [2024-11-20 00:23:04,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-20 00:23:04,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:04,536 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:04,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:23:04,537 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:04,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:04,537 INFO L85 PathProgramCache]: Analyzing trace with hash -404001253, now seen corresponding path program 1 times [2024-11-20 00:23:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:04,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27123491] [2024-11-20 00:23:04,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:04,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 00:23:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 00:23:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 00:23:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 00:23:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 00:23:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:05,862 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:05,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:05,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27123491] [2024-11-20 00:23:05,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27123491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:05,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:05,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:23:05,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501965452] [2024-11-20 00:23:05,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:05,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:23:05,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:05,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:23:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:05,865 INFO L87 Difference]: Start difference. First operand 964 states and 1429 transitions. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:05,993 INFO L93 Difference]: Finished difference Result 1751 states and 2595 transitions. [2024-11-20 00:23:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 337 [2024-11-20 00:23:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:05,998 INFO L225 Difference]: With dead ends: 1751 [2024-11-20 00:23:05,998 INFO L226 Difference]: Without dead ends: 964 [2024-11-20 00:23:06,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:06,000 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 1176 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:06,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2580 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:06,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-20 00:23:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 964. [2024-11-20 00:23:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 953 states have (on average 1.4795383001049318) internal successors, (1410), 953 states have internal predecessors, (1410), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 00:23:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1428 transitions. [2024-11-20 00:23:06,023 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1428 transitions. Word has length 337 [2024-11-20 00:23:06,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:06,024 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1428 transitions. [2024-11-20 00:23:06,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:06,024 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1428 transitions. [2024-11-20 00:23:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-20 00:23:06,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:06,027 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:06,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:23:06,027 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:06,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1345272759, now seen corresponding path program 1 times [2024-11-20 00:23:06,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:06,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839128580] [2024-11-20 00:23:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:06,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 00:23:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 00:23:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 00:23:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 00:23:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 00:23:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:07,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:07,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839128580] [2024-11-20 00:23:07,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839128580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:07,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:07,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:23:07,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021843095] [2024-11-20 00:23:07,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:07,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:23:07,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:07,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:23:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:07,147 INFO L87 Difference]: Start difference. First operand 964 states and 1428 transitions. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:07,686 INFO L93 Difference]: Finished difference Result 1751 states and 2593 transitions. [2024-11-20 00:23:07,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:07,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 338 [2024-11-20 00:23:07,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:07,695 INFO L225 Difference]: With dead ends: 1751 [2024-11-20 00:23:07,695 INFO L226 Difference]: Without dead ends: 964 [2024-11-20 00:23:07,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:07,697 INFO L432 NwaCegarLoop]: 1039 mSDtfsCounter, 1259 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:07,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 2066 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:23:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-20 00:23:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 964. [2024-11-20 00:23:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 953 states have (on average 1.478488982161595) internal successors, (1409), 953 states have internal predecessors, (1409), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 00:23:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1427 transitions. [2024-11-20 00:23:07,729 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1427 transitions. Word has length 338 [2024-11-20 00:23:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:07,730 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1427 transitions. [2024-11-20 00:23:07,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:07,731 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1427 transitions. [2024-11-20 00:23:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-20 00:23:07,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:07,735 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:07,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:23:07,735 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:07,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:07,736 INFO L85 PathProgramCache]: Analyzing trace with hash -84118754, now seen corresponding path program 1 times [2024-11-20 00:23:07,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:07,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359601132] [2024-11-20 00:23:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:07,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 00:23:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 00:23:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 00:23:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 00:23:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 00:23:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:10,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359601132] [2024-11-20 00:23:10,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359601132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:10,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:10,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 00:23:10,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832659503] [2024-11-20 00:23:10,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:10,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 00:23:10,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:10,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 00:23:10,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-20 00:23:10,277 INFO L87 Difference]: Start difference. First operand 964 states and 1427 transitions. Second operand has 11 states, 11 states have (on average 27.90909090909091) internal successors, (307), 11 states have internal predecessors, (307), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:11,762 INFO L93 Difference]: Finished difference Result 2760 states and 4086 transitions. [2024-11-20 00:23:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 00:23:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.90909090909091) internal successors, (307), 11 states have internal predecessors, (307), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 339 [2024-11-20 00:23:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:11,772 INFO L225 Difference]: With dead ends: 2760 [2024-11-20 00:23:11,772 INFO L226 Difference]: Without dead ends: 1973 [2024-11-20 00:23:11,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-20 00:23:11,774 INFO L432 NwaCegarLoop]: 1131 mSDtfsCounter, 4666 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 9048 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:11,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 9048 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 00:23:11,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-20 00:23:11,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1262. [2024-11-20 00:23:11,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1238 states have (on average 1.475767366720517) internal successors, (1827), 1238 states have internal predecessors, (1827), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 00:23:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1871 transitions. [2024-11-20 00:23:11,817 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1871 transitions. Word has length 339 [2024-11-20 00:23:11,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:11,817 INFO L471 AbstractCegarLoop]: Abstraction has 1262 states and 1871 transitions. [2024-11-20 00:23:11,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.90909090909091) internal successors, (307), 11 states have internal predecessors, (307), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:11,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1871 transitions. [2024-11-20 00:23:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-20 00:23:11,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:11,821 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:11,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:23:11,821 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:11,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:11,822 INFO L85 PathProgramCache]: Analyzing trace with hash -241751422, now seen corresponding path program 1 times [2024-11-20 00:23:11,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:11,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360803095] [2024-11-20 00:23:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:11,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 00:23:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:23:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 00:23:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 00:23:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 00:23:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 00:23:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 00:23:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:13,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360803095] [2024-11-20 00:23:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360803095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:13,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:23:13,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127419551] [2024-11-20 00:23:13,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:13,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:23:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:13,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:23:13,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:23:13,654 INFO L87 Difference]: Start difference. First operand 1262 states and 1871 transitions. Second operand has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:13,968 INFO L93 Difference]: Finished difference Result 3939 states and 5837 transitions. [2024-11-20 00:23:13,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 00:23:13,969 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 339 [2024-11-20 00:23:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:13,981 INFO L225 Difference]: With dead ends: 3939 [2024-11-20 00:23:13,982 INFO L226 Difference]: Without dead ends: 3125 [2024-11-20 00:23:13,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:23:13,984 INFO L432 NwaCegarLoop]: 1393 mSDtfsCounter, 4203 mSDsluCounter, 6323 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 7716 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:13,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 7716 Invalid, 208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:23:13,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2024-11-20 00:23:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 1712. [2024-11-20 00:23:14,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1669 states have (on average 1.4709406830437388) internal successors, (2455), 1669 states have internal predecessors, (2455), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-20 00:23:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2537 transitions. [2024-11-20 00:23:14,040 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2537 transitions. Word has length 339 [2024-11-20 00:23:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:14,040 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2537 transitions. [2024-11-20 00:23:14,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 38.375) internal successors, (307), 8 states have internal predecessors, (307), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2537 transitions. [2024-11-20 00:23:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-20 00:23:14,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:14,045 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:14,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:23:14,045 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:14,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash -407147808, now seen corresponding path program 1 times [2024-11-20 00:23:14,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:14,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345523481] [2024-11-20 00:23:14,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:14,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 00:23:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 00:23:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:23:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:23:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 00:23:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 00:23:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-20 00:23:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:14,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:14,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345523481] [2024-11-20 00:23:14,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345523481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:14,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:14,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:23:14,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095816005] [2024-11-20 00:23:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:14,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:23:14,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:23:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:14,803 INFO L87 Difference]: Start difference. First operand 1712 states and 2537 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:15,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:15,180 INFO L93 Difference]: Finished difference Result 2909 states and 4308 transitions. [2024-11-20 00:23:15,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:15,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 340 [2024-11-20 00:23:15,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:15,188 INFO L225 Difference]: With dead ends: 2909 [2024-11-20 00:23:15,188 INFO L226 Difference]: Without dead ends: 1611 [2024-11-20 00:23:15,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:15,191 INFO L432 NwaCegarLoop]: 1458 mSDtfsCounter, 70 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:15,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 3956 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 00:23:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2024-11-20 00:23:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1293. [2024-11-20 00:23:15,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1268 states have (on average 1.472397476340694) internal successors, (1867), 1268 states have internal predecessors, (1867), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-20 00:23:15,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1913 transitions. [2024-11-20 00:23:15,224 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1913 transitions. Word has length 340 [2024-11-20 00:23:15,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:15,224 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1913 transitions. [2024-11-20 00:23:15,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:15,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1913 transitions. [2024-11-20 00:23:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-20 00:23:15,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:15,228 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:15,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:23:15,228 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:15,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2058750994, now seen corresponding path program 1 times [2024-11-20 00:23:15,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:15,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414797294] [2024-11-20 00:23:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:15,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:23:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:23:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 00:23:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 00:23:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 00:23:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:15,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:15,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414797294] [2024-11-20 00:23:15,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414797294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:15,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:15,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:15,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754345976] [2024-11-20 00:23:15,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:15,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:15,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:15,907 INFO L87 Difference]: Start difference. First operand 1293 states and 1913 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:16,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:16,574 INFO L93 Difference]: Finished difference Result 2161 states and 3197 transitions. [2024-11-20 00:23:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:23:16,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 341 [2024-11-20 00:23:16,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:16,580 INFO L225 Difference]: With dead ends: 2161 [2024-11-20 00:23:16,580 INFO L226 Difference]: Without dead ends: 1301 [2024-11-20 00:23:16,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:16,582 INFO L432 NwaCegarLoop]: 1038 mSDtfsCounter, 1313 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:16,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 3071 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:23:16,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-11-20 00:23:16,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2024-11-20 00:23:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1276 states have (on average 1.469435736677116) internal successors, (1875), 1276 states have internal predecessors, (1875), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-20 00:23:16,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1921 transitions. [2024-11-20 00:23:16,611 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1921 transitions. Word has length 341 [2024-11-20 00:23:16,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:16,612 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1921 transitions. [2024-11-20 00:23:16,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1921 transitions. [2024-11-20 00:23:16,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-20 00:23:16,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:16,615 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:16,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:23:16,616 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:16,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1575030418, now seen corresponding path program 1 times [2024-11-20 00:23:16,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:16,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533671961] [2024-11-20 00:23:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:16,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 00:23:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:23:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:23:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:23:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 00:23:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 00:23:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 00:23:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:17,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:17,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533671961] [2024-11-20 00:23:17,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533671961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:17,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:17,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093620248] [2024-11-20 00:23:17,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:17,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:17,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:17,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:17,886 INFO L87 Difference]: Start difference. First operand 1301 states and 1921 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:18,576 INFO L93 Difference]: Finished difference Result 2094 states and 3092 transitions. [2024-11-20 00:23:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:23:18,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 341 [2024-11-20 00:23:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:18,582 INFO L225 Difference]: With dead ends: 2094 [2024-11-20 00:23:18,583 INFO L226 Difference]: Without dead ends: 1305 [2024-11-20 00:23:18,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:18,585 INFO L432 NwaCegarLoop]: 1038 mSDtfsCounter, 1187 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:18,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 3081 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:23:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-20 00:23:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1303. [2024-11-20 00:23:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1278 states have (on average 1.4687010954616588) internal successors, (1877), 1278 states have internal predecessors, (1877), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-20 00:23:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1923 transitions. [2024-11-20 00:23:18,631 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1923 transitions. Word has length 341 [2024-11-20 00:23:18,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:18,631 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1923 transitions. [2024-11-20 00:23:18,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:18,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1923 transitions. [2024-11-20 00:23:18,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-20 00:23:18,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:18,637 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:18,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:23:18,638 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:18,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:18,638 INFO L85 PathProgramCache]: Analyzing trace with hash 589363133, now seen corresponding path program 1 times [2024-11-20 00:23:18,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:18,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931011532] [2024-11-20 00:23:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:18,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 00:23:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:23:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:23:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:23:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 00:23:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 00:23:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 00:23:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:19,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:19,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931011532] [2024-11-20 00:23:19,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931011532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:19,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:19,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:23:19,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703004323] [2024-11-20 00:23:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:19,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:23:19,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:23:19,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:19,464 INFO L87 Difference]: Start difference. First operand 1303 states and 1923 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:19,929 INFO L93 Difference]: Finished difference Result 2094 states and 3090 transitions. [2024-11-20 00:23:19,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:19,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 342 [2024-11-20 00:23:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:19,935 INFO L225 Difference]: With dead ends: 2094 [2024-11-20 00:23:19,935 INFO L226 Difference]: Without dead ends: 1303 [2024-11-20 00:23:19,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:19,937 INFO L432 NwaCegarLoop]: 1039 mSDtfsCounter, 1180 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:19,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 2066 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:23:19,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2024-11-20 00:23:19,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1301. [2024-11-20 00:23:19,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1276 states have (on average 1.468652037617555) internal successors, (1874), 1276 states have internal predecessors, (1874), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-20 00:23:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1920 transitions. [2024-11-20 00:23:19,963 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1920 transitions. Word has length 342 [2024-11-20 00:23:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:19,964 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1920 transitions. [2024-11-20 00:23:19,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1920 transitions. [2024-11-20 00:23:19,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-11-20 00:23:19,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:19,968 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:19,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:23:19,969 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:19,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:19,969 INFO L85 PathProgramCache]: Analyzing trace with hash 661551414, now seen corresponding path program 1 times [2024-11-20 00:23:19,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:19,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695016457] [2024-11-20 00:23:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:19,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 00:23:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:23:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 00:23:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 00:23:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 00:23:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 00:23:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-20 00:23:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:21,151 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:21,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:21,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695016457] [2024-11-20 00:23:21,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695016457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:21,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:21,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:23:21,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819521330] [2024-11-20 00:23:21,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:21,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:23:21,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:21,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:23:21,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:21,154 INFO L87 Difference]: Start difference. First operand 1301 states and 1920 transitions. Second operand has 7 states, 7 states have (on average 44.285714285714285) internal successors, (310), 7 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:21,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:21,313 INFO L93 Difference]: Finished difference Result 2271 states and 3352 transitions. [2024-11-20 00:23:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:23:21,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.285714285714285) internal successors, (310), 7 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 342 [2024-11-20 00:23:21,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:21,319 INFO L225 Difference]: With dead ends: 2271 [2024-11-20 00:23:21,319 INFO L226 Difference]: Without dead ends: 1325 [2024-11-20 00:23:21,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:23:21,321 INFO L432 NwaCegarLoop]: 1311 mSDtfsCounter, 1239 mSDsluCounter, 5200 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:21,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 6511 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-20 00:23:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1315. [2024-11-20 00:23:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1290 states have (on average 1.4635658914728682) internal successors, (1888), 1290 states have internal predecessors, (1888), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-20 00:23:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1934 transitions. [2024-11-20 00:23:21,348 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1934 transitions. Word has length 342 [2024-11-20 00:23:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:21,348 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 1934 transitions. [2024-11-20 00:23:21,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.285714285714285) internal successors, (310), 7 states have internal predecessors, (310), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1934 transitions. [2024-11-20 00:23:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-20 00:23:21,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:21,352 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:21,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:23:21,352 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:21,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1889833889, now seen corresponding path program 1 times [2024-11-20 00:23:21,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:21,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528820301] [2024-11-20 00:23:21,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:21,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 00:23:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 00:23:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:23:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 00:23:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:23:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:22,110 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:22,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:22,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528820301] [2024-11-20 00:23:22,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528820301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:22,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:22,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:23:22,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816378031] [2024-11-20 00:23:22,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:22,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:23:22,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:22,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:23:22,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:22,112 INFO L87 Difference]: Start difference. First operand 1315 states and 1934 transitions. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:23,399 INFO L93 Difference]: Finished difference Result 2883 states and 4250 transitions. [2024-11-20 00:23:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 343 [2024-11-20 00:23:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:23,407 INFO L225 Difference]: With dead ends: 2883 [2024-11-20 00:23:23,407 INFO L226 Difference]: Without dead ends: 2089 [2024-11-20 00:23:23,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:23,409 INFO L432 NwaCegarLoop]: 1781 mSDtfsCounter, 2327 mSDsluCounter, 4521 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 6302 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:23,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 6302 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 00:23:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-11-20 00:23:23,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1478. [2024-11-20 00:23:23,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1444 states have (on average 1.4632963988919667) internal successors, (2113), 1444 states have internal predecessors, (2113), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:23,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2177 transitions. [2024-11-20 00:23:23,448 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2177 transitions. Word has length 343 [2024-11-20 00:23:23,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:23,449 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 2177 transitions. [2024-11-20 00:23:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:23,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2177 transitions. [2024-11-20 00:23:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-20 00:23:23,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:23,454 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:23,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 00:23:23,454 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:23,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash 815073830, now seen corresponding path program 1 times [2024-11-20 00:23:23,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:23,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833571559] [2024-11-20 00:23:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:23,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 00:23:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-20 00:23:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 00:23:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 00:23:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:23:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 00:23:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:23:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:23,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833571559] [2024-11-20 00:23:23,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833571559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:23,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:23,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:23:23,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878981564] [2024-11-20 00:23:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:23,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:23:23,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:23,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:23:23,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:23,977 INFO L87 Difference]: Start difference. First operand 1478 states and 2177 transitions. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:24,660 INFO L93 Difference]: Finished difference Result 2580 states and 3804 transitions. [2024-11-20 00:23:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:24,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 343 [2024-11-20 00:23:24,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:24,665 INFO L225 Difference]: With dead ends: 2580 [2024-11-20 00:23:24,665 INFO L226 Difference]: Without dead ends: 1502 [2024-11-20 00:23:24,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:24,668 INFO L432 NwaCegarLoop]: 1036 mSDtfsCounter, 1310 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 4102 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:24,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 4102 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:23:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2024-11-20 00:23:24,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1490. [2024-11-20 00:23:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1456 states have (on average 1.459478021978022) internal successors, (2125), 1456 states have internal predecessors, (2125), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:24,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2189 transitions. [2024-11-20 00:23:24,698 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2189 transitions. Word has length 343 [2024-11-20 00:23:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:24,699 INFO L471 AbstractCegarLoop]: Abstraction has 1490 states and 2189 transitions. [2024-11-20 00:23:24,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2189 transitions. [2024-11-20 00:23:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-20 00:23:24,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:24,702 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:24,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 00:23:24,703 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:24,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:24,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1799430598, now seen corresponding path program 1 times [2024-11-20 00:23:24,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:24,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463537770] [2024-11-20 00:23:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:24,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-20 00:23:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-20 00:23:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 00:23:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 00:23:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-20 00:23:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:25,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:25,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463537770] [2024-11-20 00:23:25,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463537770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:25,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:25,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:23:25,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214257052] [2024-11-20 00:23:25,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:25,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:23:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:25,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:23:25,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:25,504 INFO L87 Difference]: Start difference. First operand 1490 states and 2189 transitions. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:26,717 INFO L93 Difference]: Finished difference Result 2991 states and 4402 transitions. [2024-11-20 00:23:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:26,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 344 [2024-11-20 00:23:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:26,723 INFO L225 Difference]: With dead ends: 2991 [2024-11-20 00:23:26,723 INFO L226 Difference]: Without dead ends: 2101 [2024-11-20 00:23:26,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:26,726 INFO L432 NwaCegarLoop]: 1810 mSDtfsCounter, 2159 mSDsluCounter, 4598 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:26,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 6408 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 00:23:26,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2024-11-20 00:23:26,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1722. [2024-11-20 00:23:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1688 states have (on average 1.4585308056872037) internal successors, (2462), 1688 states have internal predecessors, (2462), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:26,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2526 transitions. [2024-11-20 00:23:26,768 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2526 transitions. Word has length 344 [2024-11-20 00:23:26,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:26,768 INFO L471 AbstractCegarLoop]: Abstraction has 1722 states and 2526 transitions. [2024-11-20 00:23:26,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:26,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2526 transitions. [2024-11-20 00:23:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-20 00:23:26,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:26,772 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:26,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 00:23:26,773 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:26,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1284007186, now seen corresponding path program 1 times [2024-11-20 00:23:26,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:26,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788126060] [2024-11-20 00:23:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:26,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 00:23:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-20 00:23:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-20 00:23:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-20 00:23:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:28,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:28,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788126060] [2024-11-20 00:23:28,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788126060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:28,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:28,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:23:28,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190775650] [2024-11-20 00:23:28,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:28,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:23:28,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:23:28,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:28,216 INFO L87 Difference]: Start difference. First operand 1722 states and 2526 transitions. Second operand has 7 states, 7 states have (on average 44.57142857142857) internal successors, (312), 7 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:28,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:28,447 INFO L93 Difference]: Finished difference Result 3028 states and 4446 transitions. [2024-11-20 00:23:28,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 00:23:28,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.57142857142857) internal successors, (312), 7 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 344 [2024-11-20 00:23:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:28,452 INFO L225 Difference]: With dead ends: 3028 [2024-11-20 00:23:28,452 INFO L226 Difference]: Without dead ends: 1770 [2024-11-20 00:23:28,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:23:28,454 INFO L432 NwaCegarLoop]: 1311 mSDtfsCounter, 1228 mSDsluCounter, 5110 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:28,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 6421 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:23:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-20 00:23:28,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1752. [2024-11-20 00:23:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1718 states have (on average 1.4540162980209546) internal successors, (2498), 1718 states have internal predecessors, (2498), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2562 transitions. [2024-11-20 00:23:28,491 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2562 transitions. Word has length 344 [2024-11-20 00:23:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:28,492 INFO L471 AbstractCegarLoop]: Abstraction has 1752 states and 2562 transitions. [2024-11-20 00:23:28,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.57142857142857) internal successors, (312), 7 states have internal predecessors, (312), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2562 transitions. [2024-11-20 00:23:28,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-20 00:23:28,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:28,495 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:28,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 00:23:28,496 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:28,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:28,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1586788539, now seen corresponding path program 1 times [2024-11-20 00:23:28,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:28,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640976891] [2024-11-20 00:23:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:28,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 00:23:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-20 00:23:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 00:23:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 00:23:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:29,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:29,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640976891] [2024-11-20 00:23:29,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640976891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:29,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:29,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:23:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841035402] [2024-11-20 00:23:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:29,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:23:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:29,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:23:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:29,023 INFO L87 Difference]: Start difference. First operand 1752 states and 2562 transitions. Second operand has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:29,613 INFO L93 Difference]: Finished difference Result 3012 states and 4410 transitions. [2024-11-20 00:23:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:29,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 345 [2024-11-20 00:23:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:29,617 INFO L225 Difference]: With dead ends: 3012 [2024-11-20 00:23:29,617 INFO L226 Difference]: Without dead ends: 1776 [2024-11-20 00:23:29,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:29,619 INFO L432 NwaCegarLoop]: 1036 mSDtfsCounter, 1294 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 4124 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:29,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 4124 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:23:29,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2024-11-20 00:23:29,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1764. [2024-11-20 00:23:29,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1730 states have (on average 1.4508670520231215) internal successors, (2510), 1730 states have internal predecessors, (2510), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2574 transitions. [2024-11-20 00:23:29,653 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2574 transitions. Word has length 345 [2024-11-20 00:23:29,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:29,654 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2574 transitions. [2024-11-20 00:23:29,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2574 transitions. [2024-11-20 00:23:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-20 00:23:29,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:29,658 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:29,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 00:23:29,658 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:29,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1653163959, now seen corresponding path program 1 times [2024-11-20 00:23:29,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:29,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625463839] [2024-11-20 00:23:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:29,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-20 00:23:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-20 00:23:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 00:23:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 00:23:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:30,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:30,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625463839] [2024-11-20 00:23:30,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625463839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:30,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:30,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:30,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992423986] [2024-11-20 00:23:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:30,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:30,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:30,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:30,375 INFO L87 Difference]: Start difference. First operand 1764 states and 2574 transitions. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:30,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:30,837 INFO L93 Difference]: Finished difference Result 3080 states and 4500 transitions. [2024-11-20 00:23:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:23:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 345 [2024-11-20 00:23:30,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:30,841 INFO L225 Difference]: With dead ends: 3080 [2024-11-20 00:23:30,841 INFO L226 Difference]: Without dead ends: 1776 [2024-11-20 00:23:30,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:30,844 INFO L432 NwaCegarLoop]: 1038 mSDtfsCounter, 1298 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:30,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 3073 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 00:23:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2024-11-20 00:23:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1776. [2024-11-20 00:23:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1742 states have (on average 1.4477611940298507) internal successors, (2522), 1742 states have internal predecessors, (2522), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2586 transitions. [2024-11-20 00:23:30,874 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2586 transitions. Word has length 345 [2024-11-20 00:23:30,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:30,875 INFO L471 AbstractCegarLoop]: Abstraction has 1776 states and 2586 transitions. [2024-11-20 00:23:30,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:30,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2586 transitions. [2024-11-20 00:23:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-20 00:23:30,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:30,879 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:30,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 00:23:30,879 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:30,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:30,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1449340967, now seen corresponding path program 1 times [2024-11-20 00:23:30,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:30,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152449853] [2024-11-20 00:23:30,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:30,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-20 00:23:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 00:23:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 00:23:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:31,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:31,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152449853] [2024-11-20 00:23:31,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152449853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:31,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:31,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 00:23:31,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082485291] [2024-11-20 00:23:31,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:31,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:23:31,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:31,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:23:31,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:23:31,527 INFO L87 Difference]: Start difference. First operand 1776 states and 2586 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:31,585 INFO L93 Difference]: Finished difference Result 3024 states and 4414 transitions. [2024-11-20 00:23:31,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:31,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 346 [2024-11-20 00:23:31,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:31,589 INFO L225 Difference]: With dead ends: 3024 [2024-11-20 00:23:31,589 INFO L226 Difference]: Without dead ends: 1764 [2024-11-20 00:23:31,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:31,592 INFO L432 NwaCegarLoop]: 1315 mSDtfsCounter, 1214 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:31,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 2639 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:23:31,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-20 00:23:31,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2024-11-20 00:23:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1730 states have (on average 1.4473988439306358) internal successors, (2504), 1730 states have internal predecessors, (2504), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2568 transitions. [2024-11-20 00:23:31,624 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2568 transitions. Word has length 346 [2024-11-20 00:23:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:31,624 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2568 transitions. [2024-11-20 00:23:31,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2568 transitions. [2024-11-20 00:23:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-20 00:23:31,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:31,628 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:31,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 00:23:31,628 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:31,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:31,629 INFO L85 PathProgramCache]: Analyzing trace with hash 764352373, now seen corresponding path program 1 times [2024-11-20 00:23:31,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:31,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347003469] [2024-11-20 00:23:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:31,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-20 00:23:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 00:23:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 00:23:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:32,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:32,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347003469] [2024-11-20 00:23:32,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347003469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:32,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:32,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:32,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326416468] [2024-11-20 00:23:32,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:32,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:32,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:32,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:32,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:32,761 INFO L87 Difference]: Start difference. First operand 1764 states and 2568 transitions. Second operand has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:33,275 INFO L93 Difference]: Finished difference Result 2908 states and 4240 transitions. [2024-11-20 00:23:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:23:33,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 346 [2024-11-20 00:23:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:33,278 INFO L225 Difference]: With dead ends: 2908 [2024-11-20 00:23:33,278 INFO L226 Difference]: Without dead ends: 1772 [2024-11-20 00:23:33,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:33,280 INFO L432 NwaCegarLoop]: 1037 mSDtfsCounter, 1097 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:33,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 3100 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 00:23:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-11-20 00:23:33,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1770. [2024-11-20 00:23:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1736 states have (on average 1.445852534562212) internal successors, (2510), 1736 states have internal predecessors, (2510), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:33,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2574 transitions. [2024-11-20 00:23:33,311 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2574 transitions. Word has length 346 [2024-11-20 00:23:33,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:33,312 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2574 transitions. [2024-11-20 00:23:33,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:33,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2574 transitions. [2024-11-20 00:23:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-20 00:23:33,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:33,320 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:33,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 00:23:33,320 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:33,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:33,321 INFO L85 PathProgramCache]: Analyzing trace with hash -937500916, now seen corresponding path program 1 times [2024-11-20 00:23:33,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:33,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426840323] [2024-11-20 00:23:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:33,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-20 00:23:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 00:23:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 00:23:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:34,167 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:34,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:34,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426840323] [2024-11-20 00:23:34,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426840323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:34,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:34,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:23:34,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145713240] [2024-11-20 00:23:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:34,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:23:34,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:34,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:23:34,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:34,173 INFO L87 Difference]: Start difference. First operand 1770 states and 2574 transitions. Second operand has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:34,902 INFO L93 Difference]: Finished difference Result 3016 states and 4394 transitions. [2024-11-20 00:23:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:34,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 347 [2024-11-20 00:23:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:34,905 INFO L225 Difference]: With dead ends: 3016 [2024-11-20 00:23:34,906 INFO L226 Difference]: Without dead ends: 1794 [2024-11-20 00:23:34,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:23:34,907 INFO L432 NwaCegarLoop]: 1018 mSDtfsCounter, 2503 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 4057 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:34,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 4057 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 00:23:34,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2024-11-20 00:23:34,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1782. [2024-11-20 00:23:34,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1748 states have (on average 1.4393592677345537) internal successors, (2516), 1748 states have internal predecessors, (2516), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2580 transitions. [2024-11-20 00:23:34,939 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2580 transitions. Word has length 347 [2024-11-20 00:23:34,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:34,940 INFO L471 AbstractCegarLoop]: Abstraction has 1782 states and 2580 transitions. [2024-11-20 00:23:34,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:34,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2580 transitions. [2024-11-20 00:23:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-20 00:23:34,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:34,945 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:34,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 00:23:34,946 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:34,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:34,946 INFO L85 PathProgramCache]: Analyzing trace with hash -839466700, now seen corresponding path program 1 times [2024-11-20 00:23:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:34,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770120955] [2024-11-20 00:23:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:34,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 00:23:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 00:23:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-20 00:23:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:35,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:35,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770120955] [2024-11-20 00:23:35,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770120955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:35,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:35,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:23:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606823415] [2024-11-20 00:23:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:35,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:23:35,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:23:35,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:35,733 INFO L87 Difference]: Start difference. First operand 1782 states and 2580 transitions. Second operand has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:36,370 INFO L93 Difference]: Finished difference Result 2978 states and 4324 transitions. [2024-11-20 00:23:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 348 [2024-11-20 00:23:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:36,374 INFO L225 Difference]: With dead ends: 2978 [2024-11-20 00:23:36,375 INFO L226 Difference]: Without dead ends: 1798 [2024-11-20 00:23:36,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:23:36,377 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 2485 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:36,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 4053 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:23:36,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-11-20 00:23:36,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1790. [2024-11-20 00:23:36,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1756 states have (on average 1.4350797266514805) internal successors, (2520), 1756 states have internal predecessors, (2520), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2584 transitions. [2024-11-20 00:23:36,411 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2584 transitions. Word has length 348 [2024-11-20 00:23:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:36,411 INFO L471 AbstractCegarLoop]: Abstraction has 1790 states and 2584 transitions. [2024-11-20 00:23:36,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-20 00:23:36,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2584 transitions. [2024-11-20 00:23:36,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-20 00:23:36,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:36,415 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:36,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 00:23:36,415 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:36,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1214709007, now seen corresponding path program 1 times [2024-11-20 00:23:36,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:36,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504583786] [2024-11-20 00:23:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 00:23:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 00:23:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-20 00:23:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:37,549 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:37,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:37,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504583786] [2024-11-20 00:23:37,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504583786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:37,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:37,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 00:23:37,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344597973] [2024-11-20 00:23:37,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:37,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 00:23:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:37,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 00:23:37,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:37,552 INFO L87 Difference]: Start difference. First operand 1790 states and 2584 transitions. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:38,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:38,187 INFO L93 Difference]: Finished difference Result 2974 states and 4306 transitions. [2024-11-20 00:23:38,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:38,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 349 [2024-11-20 00:23:38,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:38,191 INFO L225 Difference]: With dead ends: 2974 [2024-11-20 00:23:38,191 INFO L226 Difference]: Without dead ends: 1798 [2024-11-20 00:23:38,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:23:38,193 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 1203 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:38,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 4053 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 00:23:38,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-11-20 00:23:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1794. [2024-11-20 00:23:38,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1760 states have (on average 1.434090909090909) internal successors, (2524), 1760 states have internal predecessors, (2524), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 00:23:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2588 transitions. [2024-11-20 00:23:38,224 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2588 transitions. Word has length 349 [2024-11-20 00:23:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:38,225 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2588 transitions. [2024-11-20 00:23:38,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-20 00:23:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2588 transitions. [2024-11-20 00:23:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-20 00:23:38,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:38,228 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:38,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 00:23:38,229 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:38,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:38,229 INFO L85 PathProgramCache]: Analyzing trace with hash 876549169, now seen corresponding path program 1 times [2024-11-20 00:23:38,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:38,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266862476] [2024-11-20 00:23:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 00:23:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 00:23:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-20 00:23:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-20 00:23:40,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:40,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266862476] [2024-11-20 00:23:40,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266862476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:40,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 00:23:40,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565741643] [2024-11-20 00:23:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:40,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 00:23:40,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 00:23:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 00:23:40,043 INFO L87 Difference]: Start difference. First operand 1794 states and 2588 transitions. Second operand has 7 states, 7 states have (on average 45.42857142857143) internal successors, (318), 7 states have internal predecessors, (318), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:40,248 INFO L93 Difference]: Finished difference Result 3763 states and 5441 transitions. [2024-11-20 00:23:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 00:23:40,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 45.42857142857143) internal successors, (318), 7 states have internal predecessors, (318), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 350 [2024-11-20 00:23:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:40,254 INFO L225 Difference]: With dead ends: 3763 [2024-11-20 00:23:40,254 INFO L226 Difference]: Without dead ends: 2611 [2024-11-20 00:23:40,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-20 00:23:40,256 INFO L432 NwaCegarLoop]: 1311 mSDtfsCounter, 2781 mSDsluCounter, 5232 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2788 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:40,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2788 Valid, 6543 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-20 00:23:40,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-20 00:23:40,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2565 states have (on average 1.4339181286549707) internal successors, (3678), 2565 states have internal predecessors, (3678), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-20 00:23:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3766 transitions. [2024-11-20 00:23:40,299 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3766 transitions. Word has length 350 [2024-11-20 00:23:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:40,300 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3766 transitions. [2024-11-20 00:23:40,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 45.42857142857143) internal successors, (318), 7 states have internal predecessors, (318), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-20 00:23:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3766 transitions. [2024-11-20 00:23:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-20 00:23:40,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:40,308 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:40,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 00:23:40,309 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:40,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 22552939, now seen corresponding path program 1 times [2024-11-20 00:23:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:40,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128534796] [2024-11-20 00:23:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 00:23:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 00:23:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-20 00:23:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2024-11-20 00:23:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2024-11-20 00:23:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2024-11-20 00:23:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2024-11-20 00:23:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2024-11-20 00:23:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 595 [2024-11-20 00:23:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2024-11-20 00:23:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 00:23:42,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:42,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128534796] [2024-11-20 00:23:42,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128534796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:42,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:42,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:42,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040525329] [2024-11-20 00:23:42,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:42,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:42,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:42,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:42,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:42,686 INFO L87 Difference]: Start difference. First operand 2611 states and 3766 transitions. Second operand has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:23:42,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:42,819 INFO L93 Difference]: Finished difference Result 3763 states and 5440 transitions. [2024-11-20 00:23:42,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:42,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 794 [2024-11-20 00:23:42,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:42,826 INFO L225 Difference]: With dead ends: 3763 [2024-11-20 00:23:42,826 INFO L226 Difference]: Without dead ends: 2611 [2024-11-20 00:23:42,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:42,829 INFO L432 NwaCegarLoop]: 1283 mSDtfsCounter, 2098 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:42,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2568 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-20 00:23:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-20 00:23:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2565 states have (on average 1.4335282651072125) internal successors, (3677), 2565 states have internal predecessors, (3677), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-20 00:23:42,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3765 transitions. [2024-11-20 00:23:42,875 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3765 transitions. Word has length 794 [2024-11-20 00:23:42,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:42,877 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3765 transitions. [2024-11-20 00:23:42,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:23:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3765 transitions. [2024-11-20 00:23:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2024-11-20 00:23:42,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:42,885 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:42,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 00:23:42,886 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:42,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:42,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1271619796, now seen corresponding path program 1 times [2024-11-20 00:23:42,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:42,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775281685] [2024-11-20 00:23:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:42,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 00:23:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 00:23:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-20 00:23:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2024-11-20 00:23:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2024-11-20 00:23:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2024-11-20 00:23:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2024-11-20 00:23:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2024-11-20 00:23:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2024-11-20 00:23:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2024-11-20 00:23:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 00:23:44,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:44,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775281685] [2024-11-20 00:23:44,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775281685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:44,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:44,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:44,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982420777] [2024-11-20 00:23:44,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:44,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:44,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:44,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:44,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:44,302 INFO L87 Difference]: Start difference. First operand 2611 states and 3765 transitions. Second operand has 5 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:23:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:23:44,439 INFO L93 Difference]: Finished difference Result 3763 states and 5438 transitions. [2024-11-20 00:23:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:23:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 795 [2024-11-20 00:23:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:23:44,448 INFO L225 Difference]: With dead ends: 3763 [2024-11-20 00:23:44,448 INFO L226 Difference]: Without dead ends: 2611 [2024-11-20 00:23:44,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 00:23:44,452 INFO L432 NwaCegarLoop]: 1283 mSDtfsCounter, 2082 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:23:44,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 2568 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:23:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-20 00:23:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-20 00:23:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2565 states have (on average 1.4331384015594542) internal successors, (3676), 2565 states have internal predecessors, (3676), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-20 00:23:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3764 transitions. [2024-11-20 00:23:44,504 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3764 transitions. Word has length 795 [2024-11-20 00:23:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:23:44,506 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3764 transitions. [2024-11-20 00:23:44,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 00:23:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3764 transitions. [2024-11-20 00:23:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2024-11-20 00:23:44,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:23:44,516 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:23:44,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 00:23:44,516 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:23:44,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:23:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 264472694, now seen corresponding path program 1 times [2024-11-20 00:23:44,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:23:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214472939] [2024-11-20 00:23:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:23:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:23:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 00:23:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-20 00:23:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 00:23:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 00:23:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 00:23:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-20 00:23:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-20 00:23:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2024-11-20 00:23:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2024-11-20 00:23:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2024-11-20 00:23:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2024-11-20 00:23:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2024-11-20 00:23:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2024-11-20 00:23:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 609 [2024-11-20 00:23:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:23:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 00:23:45,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:23:45,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214472939] [2024-11-20 00:23:45,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214472939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:23:45,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:23:45,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:23:45,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805846830] [2024-11-20 00:23:45,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:23:45,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:23:45,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:23:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:23:45,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:23:45,775 INFO L87 Difference]: Start difference. First operand 2611 states and 3764 transitions. Second operand has 5 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)