./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.vis_arrays_two_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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.vis_arrays_two_p1.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 a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 07:11:19,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 07:11:19,778 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 07:11:19,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 07:11:19,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 07:11:19,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 07:11:19,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 07:11:19,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 07:11:19,834 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 07:11:19,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 07:11:19,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 07:11:19,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 07:11:19,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 07:11:19,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 07:11:19,838 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 07:11:19,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 07:11:19,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 07:11:19,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 07:11:19,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 07:11:19,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 07:11:19,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 07:11:19,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 07:11:19,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 07:11:19,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 07:11:19,845 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 07:11:19,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 07:11:19,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 07:11:19,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 07:11:19,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 07:11:19,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:11:19,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 07:11:19,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 07:11:19,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 07:11:19,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 07:11:19,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 07:11:19,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 07:11:19,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 07:11:19,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 07:11:19,849 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 07:11:19,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a615b663b5895b4b891110151ed37d2c5777d9e61c5a340653346e5f4d27eeef [2024-10-14 07:11:20,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 07:11:20,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 07:11:20,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 07:11:20,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 07:11:20,136 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 07:11:20,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2024-10-14 07:11:21,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 07:11:21,962 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 07:11:21,962 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_two_p1.c [2024-10-14 07:11:21,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68b5a8f83/60857b8e5c1848fd81286126c481e5cd/FLAGfe9bb34d4 [2024-10-14 07:11:21,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68b5a8f83/60857b8e5c1848fd81286126c481e5cd [2024-10-14 07:11:22,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 07:11:22,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 07:11:22,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 07:11:22,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 07:11:22,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 07:11:22,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:22,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449d6a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22, skipping insertion in model container [2024-10-14 07:11:22,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:22,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 07:11:22,270 WARN L248 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.vis_arrays_two_p1.c[1257,1270] [2024-10-14 07:11:22,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:11:22,599 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 07:11:22,609 WARN L248 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.vis_arrays_two_p1.c[1257,1270] [2024-10-14 07:11:22,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 07:11:22,865 INFO L204 MainTranslator]: Completed translation [2024-10-14 07:11:22,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22 WrapperNode [2024-10-14 07:11:22,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 07:11:22,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 07:11:22,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 07:11:22,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 07:11:22,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:22,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,203 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2921 [2024-10-14 07:11:23,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 07:11:23,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 07:11:23,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 07:11:23,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 07:11:23,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,389 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]. [2024-10-14 07:11:23,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:23,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 07:11:24,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 07:11:24,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 07:11:24,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 07:11:24,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (1/1) ... [2024-10-14 07:11:24,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 07:11:24,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:11:24,040 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) [2024-10-14 07:11:24,042 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 [2024-10-14 07:11:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 07:11:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 07:11:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 07:11:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 07:11:24,416 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 07:11:24,418 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 07:11:27,202 INFO L? ?]: Removed 1802 outVars from TransFormulas that were not future-live. [2024-10-14 07:11:27,203 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 07:11:27,292 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 07:11:27,292 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 07:11:27,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:27 BoogieIcfgContainer [2024-10-14 07:11:27,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 07:11:27,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 07:11:27,296 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 07:11:27,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 07:11:27,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:11:22" (1/3) ... [2024-10-14 07:11:27,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e516889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:27, skipping insertion in model container [2024-10-14 07:11:27,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:11:22" (2/3) ... [2024-10-14 07:11:27,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e516889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:11:27, skipping insertion in model container [2024-10-14 07:11:27,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:11:27" (3/3) ... [2024-10-14 07:11:27,302 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_two_p1.c [2024-10-14 07:11:27,320 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 07:11:27,320 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 07:11:27,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 07:11:27,433 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;@53067902, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 07:11:27,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 07:11:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 839 states, 837 states have (on average 1.5005973715651135) internal successors, (1256), 838 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 07:11:27,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:27,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:27,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:27,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:27,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1718020713, now seen corresponding path program 1 times [2024-10-14 07:11:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:27,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009240378] [2024-10-14 07:11:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:27,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:28,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:28,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:28,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009240378] [2024-10-14 07:11:28,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009240378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:28,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:28,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:28,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317601273] [2024-10-14 07:11:28,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:28,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:28,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:28,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:28,813 INFO L87 Difference]: Start difference. First operand has 839 states, 837 states have (on average 1.5005973715651135) internal successors, (1256), 838 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:28,951 INFO L93 Difference]: Finished difference Result 1638 states and 2454 transitions. [2024-10-14 07:11:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-10-14 07:11:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:28,978 INFO L225 Difference]: With dead ends: 1638 [2024-10-14 07:11:28,978 INFO L226 Difference]: Without dead ends: 840 [2024-10-14 07:11:28,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:28,991 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 0 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:28,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3748 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:29,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-10-14 07:11:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2024-10-14 07:11:29,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 839 states have (on average 1.4970202622169249) internal successors, (1256), 839 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1256 transitions. [2024-10-14 07:11:29,075 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1256 transitions. Word has length 58 [2024-10-14 07:11:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:29,076 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1256 transitions. [2024-10-14 07:11:29,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1256 transitions. [2024-10-14 07:11:29,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 07:11:29,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:29,080 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:29,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 07:11:29,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:29,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1720730055, now seen corresponding path program 1 times [2024-10-14 07:11:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:29,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362540264] [2024-10-14 07:11:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:29,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:29,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:29,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:29,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362540264] [2024-10-14 07:11:29,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362540264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:29,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:29,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:29,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415095859] [2024-10-14 07:11:29,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:29,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:29,624 INFO L87 Difference]: Start difference. First operand 840 states and 1256 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:29,681 INFO L93 Difference]: Finished difference Result 1641 states and 2454 transitions. [2024-10-14 07:11:29,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:29,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-10-14 07:11:29,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:29,687 INFO L225 Difference]: With dead ends: 1641 [2024-10-14 07:11:29,687 INFO L226 Difference]: Without dead ends: 842 [2024-10-14 07:11:29,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:29,691 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 0 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:29,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3745 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:29,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-10-14 07:11:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2024-10-14 07:11:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.4958382877526755) internal successors, (1258), 841 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1258 transitions. [2024-10-14 07:11:29,716 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1258 transitions. Word has length 59 [2024-10-14 07:11:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:29,717 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1258 transitions. [2024-10-14 07:11:29,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1258 transitions. [2024-10-14 07:11:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 07:11:29,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:29,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:29,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 07:11:29,723 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:29,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash 705058562, now seen corresponding path program 1 times [2024-10-14 07:11:29,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:29,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333093436] [2024-10-14 07:11:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:31,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:31,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333093436] [2024-10-14 07:11:31,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333093436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:31,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:31,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:31,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674879705] [2024-10-14 07:11:31,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:31,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 07:11:31,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:31,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 07:11:31,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:31,489 INFO L87 Difference]: Start difference. First operand 842 states and 1258 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:31,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:31,561 INFO L93 Difference]: Finished difference Result 1645 states and 2458 transitions. [2024-10-14 07:11:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 07:11:31,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-10-14 07:11:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:31,565 INFO L225 Difference]: With dead ends: 1645 [2024-10-14 07:11:31,565 INFO L226 Difference]: Without dead ends: 844 [2024-10-14 07:11:31,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 07:11:31,568 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 0 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:31,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3745 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2024-10-14 07:11:31,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2024-10-14 07:11:31,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 1.4946619217081851) internal successors, (1260), 843 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:31,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1260 transitions. [2024-10-14 07:11:31,582 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1260 transitions. Word has length 60 [2024-10-14 07:11:31,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:31,583 INFO L471 AbstractCegarLoop]: Abstraction has 844 states and 1260 transitions. [2024-10-14 07:11:31,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:31,583 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1260 transitions. [2024-10-14 07:11:31,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 07:11:31,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:31,585 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:31,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 07:11:31,585 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:31,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:31,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1290866094, now seen corresponding path program 1 times [2024-10-14 07:11:31,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:31,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773065250] [2024-10-14 07:11:31,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:31,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:32,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773065250] [2024-10-14 07:11:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773065250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:32,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:32,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:32,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543238207] [2024-10-14 07:11:32,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:32,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:32,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:32,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:32,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:32,601 INFO L87 Difference]: Start difference. First operand 844 states and 1260 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:32,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:32,672 INFO L93 Difference]: Finished difference Result 1649 states and 2462 transitions. [2024-10-14 07:11:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:32,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-10-14 07:11:32,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:32,676 INFO L225 Difference]: With dead ends: 1649 [2024-10-14 07:11:32,676 INFO L226 Difference]: Without dead ends: 846 [2024-10-14 07:11:32,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:32,678 INFO L432 NwaCegarLoop]: 1248 mSDtfsCounter, 1207 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:32,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 3736 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:32,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-10-14 07:11:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 846. [2024-10-14 07:11:32,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 1.493491124260355) internal successors, (1262), 845 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1262 transitions. [2024-10-14 07:11:32,695 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1262 transitions. Word has length 61 [2024-10-14 07:11:32,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:32,695 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1262 transitions. [2024-10-14 07:11:32,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:32,696 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1262 transitions. [2024-10-14 07:11:32,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 07:11:32,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:32,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:32,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 07:11:32,697 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:32,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:32,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1818630501, now seen corresponding path program 1 times [2024-10-14 07:11:32,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:32,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90702884] [2024-10-14 07:11:32,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:32,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:33,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:33,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90702884] [2024-10-14 07:11:33,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90702884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:33,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:33,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504031185] [2024-10-14 07:11:33,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:33,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:33,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:33,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:33,137 INFO L87 Difference]: Start difference. First operand 846 states and 1262 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:33,206 INFO L93 Difference]: Finished difference Result 1659 states and 2474 transitions. [2024-10-14 07:11:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:33,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-14 07:11:33,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:33,213 INFO L225 Difference]: With dead ends: 1659 [2024-10-14 07:11:33,213 INFO L226 Difference]: Without dead ends: 854 [2024-10-14 07:11:33,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:33,216 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 3 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:33,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4991 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-10-14 07:11:33,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 850. [2024-10-14 07:11:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 1.4935217903415783) internal successors, (1268), 849 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1268 transitions. [2024-10-14 07:11:33,289 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1268 transitions. Word has length 62 [2024-10-14 07:11:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:33,290 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1268 transitions. [2024-10-14 07:11:33,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1268 transitions. [2024-10-14 07:11:33,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 07:11:33,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:33,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:33,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 07:11:33,292 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:33,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:33,293 INFO L85 PathProgramCache]: Analyzing trace with hash 820547221, now seen corresponding path program 1 times [2024-10-14 07:11:33,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:33,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387981206] [2024-10-14 07:11:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:33,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:33,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:33,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:33,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387981206] [2024-10-14 07:11:33,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387981206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:33,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:33,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:33,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11851223] [2024-10-14 07:11:33,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:33,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:33,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:33,678 INFO L87 Difference]: Start difference. First operand 850 states and 1268 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:33,741 INFO L93 Difference]: Finished difference Result 1665 states and 2484 transitions. [2024-10-14 07:11:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:33,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-14 07:11:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:33,745 INFO L225 Difference]: With dead ends: 1665 [2024-10-14 07:11:33,745 INFO L226 Difference]: Without dead ends: 856 [2024-10-14 07:11:33,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:33,747 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 4 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:33,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4991 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:33,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-10-14 07:11:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2024-10-14 07:11:33,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 1.4923976608187135) internal successors, (1276), 855 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1276 transitions. [2024-10-14 07:11:33,763 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1276 transitions. Word has length 63 [2024-10-14 07:11:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:33,764 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1276 transitions. [2024-10-14 07:11:33,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1276 transitions. [2024-10-14 07:11:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 07:11:33,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:33,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:33,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 07:11:33,766 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:33,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -507151795, now seen corresponding path program 1 times [2024-10-14 07:11:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:33,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89743867] [2024-10-14 07:11:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:33,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:34,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:34,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:34,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89743867] [2024-10-14 07:11:34,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89743867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:34,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:34,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:34,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224412351] [2024-10-14 07:11:34,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:34,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:34,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:34,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:34,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:34,613 INFO L87 Difference]: Start difference. First operand 856 states and 1276 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:34,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:34,678 INFO L93 Difference]: Finished difference Result 1673 states and 2494 transitions. [2024-10-14 07:11:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:34,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-14 07:11:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:34,682 INFO L225 Difference]: With dead ends: 1673 [2024-10-14 07:11:34,682 INFO L226 Difference]: Without dead ends: 858 [2024-10-14 07:11:34,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:34,685 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1215 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:34,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 3742 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-10-14 07:11:34,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2024-10-14 07:11:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 1.4912485414235706) internal successors, (1278), 857 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:34,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1278 transitions. [2024-10-14 07:11:34,703 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1278 transitions. Word has length 64 [2024-10-14 07:11:34,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:34,704 INFO L471 AbstractCegarLoop]: Abstraction has 858 states and 1278 transitions. [2024-10-14 07:11:34,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:34,704 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1278 transitions. [2024-10-14 07:11:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 07:11:34,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:34,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:34,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 07:11:34,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:34,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1430925788, now seen corresponding path program 1 times [2024-10-14 07:11:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:34,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288550891] [2024-10-14 07:11:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:34,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:35,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:35,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288550891] [2024-10-14 07:11:35,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288550891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:35,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:35,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:35,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881678623] [2024-10-14 07:11:35,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:35,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:35,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:35,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:35,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:35,123 INFO L87 Difference]: Start difference. First operand 858 states and 1278 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:35,199 INFO L93 Difference]: Finished difference Result 1683 states and 2506 transitions. [2024-10-14 07:11:35,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:35,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-14 07:11:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:35,203 INFO L225 Difference]: With dead ends: 1683 [2024-10-14 07:11:35,203 INFO L226 Difference]: Without dead ends: 866 [2024-10-14 07:11:35,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:35,206 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 3 mSDsluCounter, 4986 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6236 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:35,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6236 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:35,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-14 07:11:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 862. [2024-10-14 07:11:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 1.4912891986062717) internal successors, (1284), 861 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1284 transitions. [2024-10-14 07:11:35,224 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1284 transitions. Word has length 65 [2024-10-14 07:11:35,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:35,225 INFO L471 AbstractCegarLoop]: Abstraction has 862 states and 1284 transitions. [2024-10-14 07:11:35,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1284 transitions. [2024-10-14 07:11:35,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 07:11:35,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:35,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:35,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 07:11:35,229 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:35,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:35,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2000225926, now seen corresponding path program 1 times [2024-10-14 07:11:35,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:35,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291172277] [2024-10-14 07:11:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:35,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:35,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:35,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:35,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291172277] [2024-10-14 07:11:35,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291172277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:35,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:35,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:35,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052161744] [2024-10-14 07:11:35,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:35,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:35,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:35,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:35,674 INFO L87 Difference]: Start difference. First operand 862 states and 1284 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:35,739 INFO L93 Difference]: Finished difference Result 1689 states and 2516 transitions. [2024-10-14 07:11:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:35,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 07:11:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:35,745 INFO L225 Difference]: With dead ends: 1689 [2024-10-14 07:11:35,745 INFO L226 Difference]: Without dead ends: 868 [2024-10-14 07:11:35,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:35,749 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 4 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:35,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4991 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-10-14 07:11:35,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2024-10-14 07:11:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.4901960784313726) internal successors, (1292), 867 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1292 transitions. [2024-10-14 07:11:35,770 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1292 transitions. Word has length 66 [2024-10-14 07:11:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:35,770 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1292 transitions. [2024-10-14 07:11:35,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1292 transitions. [2024-10-14 07:11:35,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 07:11:35,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:35,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:35,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 07:11:35,772 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:35,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:35,776 INFO L85 PathProgramCache]: Analyzing trace with hash 499472234, now seen corresponding path program 1 times [2024-10-14 07:11:35,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:35,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874613692] [2024-10-14 07:11:35,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:35,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:36,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:36,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874613692] [2024-10-14 07:11:36,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874613692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:36,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:36,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 07:11:36,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717532690] [2024-10-14 07:11:36,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:36,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:36,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:36,245 INFO L87 Difference]: Start difference. First operand 868 states and 1292 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:36,313 INFO L93 Difference]: Finished difference Result 1701 states and 2532 transitions. [2024-10-14 07:11:36,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:36,314 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 07:11:36,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:36,317 INFO L225 Difference]: With dead ends: 1701 [2024-10-14 07:11:36,317 INFO L226 Difference]: Without dead ends: 874 [2024-10-14 07:11:36,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:36,319 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 4 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:36,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4991 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2024-10-14 07:11:36,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 874. [2024-10-14 07:11:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 1.4891179839633448) internal successors, (1300), 873 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1300 transitions. [2024-10-14 07:11:36,338 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1300 transitions. Word has length 67 [2024-10-14 07:11:36,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:36,339 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 1300 transitions. [2024-10-14 07:11:36,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,339 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1300 transitions. [2024-10-14 07:11:36,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 07:11:36,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:36,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:36,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 07:11:36,341 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:36,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:36,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1592355976, now seen corresponding path program 1 times [2024-10-14 07:11:36,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:36,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647140237] [2024-10-14 07:11:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:36,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:36,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:36,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647140237] [2024-10-14 07:11:36,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647140237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:36,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:36,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396887293] [2024-10-14 07:11:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:36,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:36,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:36,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:36,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:36,698 INFO L87 Difference]: Start difference. First operand 874 states and 1300 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:36,754 INFO L93 Difference]: Finished difference Result 1713 states and 2548 transitions. [2024-10-14 07:11:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:36,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 07:11:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:36,758 INFO L225 Difference]: With dead ends: 1713 [2024-10-14 07:11:36,758 INFO L226 Difference]: Without dead ends: 880 [2024-10-14 07:11:36,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:36,760 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 4 mSDsluCounter, 3741 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4991 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:36,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4991 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2024-10-14 07:11:36,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2024-10-14 07:11:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 1.4880546075085324) internal successors, (1308), 879 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1308 transitions. [2024-10-14 07:11:36,776 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1308 transitions. Word has length 68 [2024-10-14 07:11:36,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:36,777 INFO L471 AbstractCegarLoop]: Abstraction has 880 states and 1308 transitions. [2024-10-14 07:11:36,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:36,777 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1308 transitions. [2024-10-14 07:11:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 07:11:36,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:36,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:36,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 07:11:36,778 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:36,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:36,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1288167416, now seen corresponding path program 1 times [2024-10-14 07:11:36,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861626290] [2024-10-14 07:11:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:37,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:37,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861626290] [2024-10-14 07:11:37,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861626290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:37,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:37,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:37,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618708420] [2024-10-14 07:11:37,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:37,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:37,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:37,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:37,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:37,543 INFO L87 Difference]: Start difference. First operand 880 states and 1308 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:37,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:37,606 INFO L93 Difference]: Finished difference Result 1721 states and 2558 transitions. [2024-10-14 07:11:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:37,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-10-14 07:11:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:37,610 INFO L225 Difference]: With dead ends: 1721 [2024-10-14 07:11:37,610 INFO L226 Difference]: Without dead ends: 882 [2024-10-14 07:11:37,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:37,612 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1231 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:37,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 3742 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-10-14 07:11:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-10-14 07:11:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:37,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:37,626 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 69 [2024-10-14 07:11:37,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:37,627 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:37,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-14 07:11:37,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:37,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:37,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 07:11:37,628 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:37,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1009138065, now seen corresponding path program 1 times [2024-10-14 07:11:37,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:37,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683911967] [2024-10-14 07:11:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:38,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:38,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683911967] [2024-10-14 07:11:38,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683911967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:38,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:38,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637896576] [2024-10-14 07:11:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:38,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:38,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:38,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:38,446 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:38,522 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-14 07:11:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:38,526 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:38,526 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:38,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:38,529 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1204 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:38,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 4987 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:38,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:38,555 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 70 [2024-10-14 07:11:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:38,555 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 07:11:38,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:38,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:38,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 07:11:38,557 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash -89416264, now seen corresponding path program 1 times [2024-10-14 07:11:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:38,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058119447] [2024-10-14 07:11:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:38,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:39,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:39,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:39,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058119447] [2024-10-14 07:11:39,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058119447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:39,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:39,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:39,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773921763] [2024-10-14 07:11:39,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:39,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:39,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:39,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:39,388 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:39,467 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:39,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:39,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-10-14 07:11:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:39,471 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:39,471 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:39,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:39,474 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1215 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:39,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 4987 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:39,492 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 71 [2024-10-14 07:11:39,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:39,493 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:39,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 07:11:39,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:39,494 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:39,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 07:11:39,494 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:39,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1747901519, now seen corresponding path program 1 times [2024-10-14 07:11:39,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:39,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265699123] [2024-10-14 07:11:39,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:39,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:40,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:40,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265699123] [2024-10-14 07:11:40,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265699123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:40,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:40,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:40,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310150328] [2024-10-14 07:11:40,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:40,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:40,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:40,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:40,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:40,314 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:40,391 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:40,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-10-14 07:11:40,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:40,394 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:40,395 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:40,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:40,398 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1225 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 4987 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:40,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 4987 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:40,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:40,415 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 72 [2024-10-14 07:11:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:40,415 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:40,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 07:11:40,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:40,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:40,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 07:11:40,418 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:40,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:40,418 INFO L85 PathProgramCache]: Analyzing trace with hash -514686760, now seen corresponding path program 1 times [2024-10-14 07:11:40,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:40,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123016460] [2024-10-14 07:11:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:40,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:41,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:41,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123016460] [2024-10-14 07:11:41,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123016460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:41,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:41,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:41,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871928664] [2024-10-14 07:11:41,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:41,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:41,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:41,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:41,443 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:41,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:41,730 INFO L93 Difference]: Finished difference Result 1725 states and 2562 transitions. [2024-10-14 07:11:41,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:41,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-14 07:11:41,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:41,734 INFO L225 Difference]: With dead ends: 1725 [2024-10-14 07:11:41,734 INFO L226 Difference]: Without dead ends: 884 [2024-10-14 07:11:41,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:41,736 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 1229 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:41,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3462 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 07:11:41,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-10-14 07:11:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 882. [2024-10-14 07:11:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:41,754 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 73 [2024-10-14 07:11:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:41,754 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:41,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 07:11:41,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:41,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:41,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 07:11:41,756 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:41,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:41,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1918350450, now seen corresponding path program 1 times [2024-10-14 07:11:41,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:41,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404460650] [2024-10-14 07:11:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:41,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:42,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:42,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404460650] [2024-10-14 07:11:42,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404460650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:42,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:42,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:42,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908642605] [2024-10-14 07:11:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:42,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:42,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:42,874 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:43,157 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-10-14 07:11:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:43,162 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:43,162 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:43,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:43,164 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 1205 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:43,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 3462 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 07:11:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:43,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:43,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:43,179 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 74 [2024-10-14 07:11:43,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:43,179 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:43,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:43,179 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:43,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-14 07:11:43,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:43,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:43,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 07:11:43,181 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:43,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1537302274, now seen corresponding path program 1 times [2024-10-14 07:11:43,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:43,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194056037] [2024-10-14 07:11:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:44,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194056037] [2024-10-14 07:11:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194056037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:44,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:44,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270082357] [2024-10-14 07:11:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:44,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:44,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:44,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:44,197 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:44,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:44,537 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:44,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:44,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-14 07:11:44,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:44,541 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:44,541 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:44,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:44,543 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 1222 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 4612 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:44,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 4612 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:44,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:44,558 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 75 [2024-10-14 07:11:44,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:44,558 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:44,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:44,558 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 07:11:44,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:44,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:44,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 07:11:44,559 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:44,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1382811092, now seen corresponding path program 1 times [2024-10-14 07:11:44,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:44,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217517953] [2024-10-14 07:11:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:45,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217517953] [2024-10-14 07:11:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217517953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:45,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:45,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:45,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514505803] [2024-10-14 07:11:45,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:45,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:45,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:45,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:45,319 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:45,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:45,376 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:45,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:45,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-10-14 07:11:45,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:45,380 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:45,380 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:45,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:45,381 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1217 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3742 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:45,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 3742 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 07:11:45,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:45,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:45,400 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 76 [2024-10-14 07:11:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:45,400 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:45,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 07:11:45,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:45,401 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:45,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 07:11:45,402 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:45,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash -54040357, now seen corresponding path program 1 times [2024-10-14 07:11:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:45,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873472085] [2024-10-14 07:11:45,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:45,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:46,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:46,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873472085] [2024-10-14 07:11:46,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873472085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:46,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:46,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:46,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625280173] [2024-10-14 07:11:46,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:46,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:46,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:46,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:46,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:46,371 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:46,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:46,715 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:46,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:46,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-10-14 07:11:46,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:46,719 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:46,719 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:46,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:46,721 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 1209 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 4612 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:46,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 4612 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:46,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:46,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:46,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:46,740 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 77 [2024-10-14 07:11:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:46,740 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:46,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 07:11:46,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:46,742 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:46,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 07:11:46,742 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:46,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash -216379151, now seen corresponding path program 1 times [2024-10-14 07:11:46,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:46,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335770466] [2024-10-14 07:11:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:46,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:47,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335770466] [2024-10-14 07:11:47,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335770466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:47,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:47,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 07:11:47,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005969279] [2024-10-14 07:11:47,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:47,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 07:11:47,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:47,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 07:11:47,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 07:11:47,586 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:47,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:47,856 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:47,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 07:11:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:47,860 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:47,860 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:47,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 07:11:47,862 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 1215 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 3462 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:47,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 3462 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 07:11:47,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:47,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:47,877 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 78 [2024-10-14 07:11:47,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:47,877 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:47,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:47,878 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:47,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 07:11:47,878 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:47,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:47,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 07:11:47,879 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:47,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:47,879 INFO L85 PathProgramCache]: Analyzing trace with hash -819203077, now seen corresponding path program 1 times [2024-10-14 07:11:47,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:47,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410021079] [2024-10-14 07:11:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:47,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:48,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:48,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410021079] [2024-10-14 07:11:48,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410021079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:48,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:48,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 07:11:48,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673243363] [2024-10-14 07:11:48,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:48,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 07:11:48,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:48,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 07:11:48,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 07:11:48,759 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:49,115 INFO L93 Difference]: Finished difference Result 1727 states and 2564 transitions. [2024-10-14 07:11:49,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 07:11:49,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 07:11:49,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:49,119 INFO L225 Difference]: With dead ends: 1727 [2024-10-14 07:11:49,119 INFO L226 Difference]: Without dead ends: 886 [2024-10-14 07:11:49,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 07:11:49,121 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 1194 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 4612 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:49,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 4612 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:49,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-10-14 07:11:49,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2024-10-14 07:11:49,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.4869466515323495) internal successors, (1310), 881 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1310 transitions. [2024-10-14 07:11:49,142 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1310 transitions. Word has length 79 [2024-10-14 07:11:49,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:49,143 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1310 transitions. [2024-10-14 07:11:49,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1310 transitions. [2024-10-14 07:11:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 07:11:49,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:49,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:49,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 07:11:49,145 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:49,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash 828134865, now seen corresponding path program 1 times [2024-10-14 07:11:49,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:49,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763513254] [2024-10-14 07:11:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:11:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:11:51,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:11:51,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:11:51,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763513254] [2024-10-14 07:11:51,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763513254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 07:11:51,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 07:11:51,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 07:11:51,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455731383] [2024-10-14 07:11:51,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 07:11:51,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 07:11:51,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:11:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 07:11:51,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 07:11:51,489 INFO L87 Difference]: Start difference. First operand 882 states and 1310 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:51,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:11:51,955 INFO L93 Difference]: Finished difference Result 2288 states and 3395 transitions. [2024-10-14 07:11:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 07:11:51,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-14 07:11:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:11:51,961 INFO L225 Difference]: With dead ends: 2288 [2024-10-14 07:11:51,962 INFO L226 Difference]: Without dead ends: 1447 [2024-10-14 07:11:51,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-10-14 07:11:51,963 INFO L432 NwaCegarLoop]: 1218 mSDtfsCounter, 2828 mSDsluCounter, 7300 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 8518 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 07:11:51,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 8518 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 07:11:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-10-14 07:11:51,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 910. [2024-10-14 07:11:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.4873487348734873) internal successors, (1352), 909 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1352 transitions. [2024-10-14 07:11:51,982 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1352 transitions. Word has length 80 [2024-10-14 07:11:51,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:11:51,983 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1352 transitions. [2024-10-14 07:11:51,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:11:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1352 transitions. [2024-10-14 07:11:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-10-14 07:11:51,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:11:51,990 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:11:51,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 07:11:51,991 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:11:51,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:11:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash -101359615, now seen corresponding path program 1 times [2024-10-14 07:11:51,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:11:51,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447477795] [2024-10-14 07:11:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:11:51,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:12:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:12:07,862 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:12:07,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 07:12:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447477795] [2024-10-14 07:12:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447477795] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 07:12:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060551795] [2024-10-14 07:12:07,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:12:07,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 07:12:07,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 07:12:07,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 07:12:07,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 07:12:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 07:12:11,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-14 07:12:11,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 07:12:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:12:13,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 07:12:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 07:12:16,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060551795] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 07:12:16,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 07:12:16,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-10-14 07:12:16,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697306498] [2024-10-14 07:12:16,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 07:12:16,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 07:12:16,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 07:12:16,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 07:12:16,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-10-14 07:12:16,111 INFO L87 Difference]: Start difference. First operand 910 states and 1352 transitions. Second operand has 16 states, 16 states have (on average 86.125) internal successors, (1378), 15 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:12:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 07:12:18,738 INFO L93 Difference]: Finished difference Result 3250 states and 4818 transitions. [2024-10-14 07:12:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 07:12:18,739 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 86.125) internal successors, (1378), 15 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 479 [2024-10-14 07:12:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 07:12:18,745 INFO L225 Difference]: With dead ends: 3250 [2024-10-14 07:12:18,745 INFO L226 Difference]: Without dead ends: 1287 [2024-10-14 07:12:18,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2024-10-14 07:12:18,749 INFO L432 NwaCegarLoop]: 843 mSDtfsCounter, 12177 mSDsluCounter, 5703 mSDsCounter, 0 mSdLazyCounter, 3359 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12177 SdHoareTripleChecker+Valid, 6546 SdHoareTripleChecker+Invalid, 3376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 07:12:18,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12177 Valid, 6546 Invalid, 3376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3359 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 07:12:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2024-10-14 07:12:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 938. [2024-10-14 07:12:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 937 states have (on average 1.48025613660619) internal successors, (1387), 937 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:12:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1387 transitions. [2024-10-14 07:12:18,774 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1387 transitions. Word has length 479 [2024-10-14 07:12:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 07:12:18,774 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1387 transitions. [2024-10-14 07:12:18,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 86.125) internal successors, (1378), 15 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 07:12:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1387 transitions. [2024-10-14 07:12:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-10-14 07:12:18,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 07:12:18,783 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 07:12:18,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 07:12:18,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 07:12:18,985 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 07:12:18,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 07:12:18,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1518285465, now seen corresponding path program 1 times [2024-10-14 07:12:18,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 07:12:18,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579136037] [2024-10-14 07:12:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 07:12:18,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 07:12:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat