./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_QF_BV_rotate32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 07:00:35,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 07:00:35,884 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 07:00:35,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 07:00:35,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 07:00:35,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 07:00:35,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 07:00:35,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 07:00:35,910 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 07:00:35,911 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 07:00:35,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 07:00:35,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 07:00:35,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 07:00:35,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 07:00:35,913 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 07:00:35,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 07:00:35,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 07:00:35,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 07:00:35,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 07:00:35,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 07:00:35,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 07:00:35,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 07:00:35,921 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 07:00:35,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 07:00:35,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 07:00:35,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 07:00:35,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 07:00:35,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 07:00:35,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 07:00:35,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:00:35,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 07:00:35,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 07:00:35,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 07:00:35,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 07:00:35,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 07:00:35,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 07:00:35,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 07:00:35,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 07:00:35,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 07:00:35,926 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de [2024-10-11 07:00:36,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 07:00:36,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 07:00:36,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 07:00:36,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 07:00:36,199 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 07:00:36,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-10-11 07:00:37,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 07:00:37,835 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 07:00:37,836 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-10-11 07:00:37,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d5d3daf28/32fd5cc6cbe746378714779da356da53/FLAGc82dd9bc5 [2024-10-11 07:00:37,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d5d3daf28/32fd5cc6cbe746378714779da356da53 [2024-10-11 07:00:37,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 07:00:37,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 07:00:37,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 07:00:37,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 07:00:37,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 07:00:37,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:00:37" (1/1) ... [2024-10-11 07:00:37,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187b3792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:37, skipping insertion in model container [2024-10-11 07:00:37,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:00:37" (1/1) ... [2024-10-11 07:00:37,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 07:00:38,085 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_QF_BV_rotate32.c[1258,1271] [2024-10-11 07:00:38,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:00:38,179 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 07:00:38,211 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_QF_BV_rotate32.c[1258,1271] [2024-10-11 07:00:38,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:00:38,274 INFO L204 MainTranslator]: Completed translation [2024-10-11 07:00:38,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38 WrapperNode [2024-10-11 07:00:38,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 07:00:38,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 07:00:38,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 07:00:38,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 07:00:38,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,342 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 319 [2024-10-11 07:00:38,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 07:00:38,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 07:00:38,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 07:00:38,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 07:00:38,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,398 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]. [2024-10-11 07:00:38,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 07:00:38,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 07:00:38,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 07:00:38,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 07:00:38,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (1/1) ... [2024-10-11 07:00:38,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:00:38,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:00:38,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 07:00:38,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 07:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 07:00:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 07:00:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 07:00:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 07:00:38,632 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 07:00:38,638 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 07:00:39,190 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-10-11 07:00:39,190 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 07:00:39,223 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 07:00:39,223 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 07:00:39,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:00:39 BoogieIcfgContainer [2024-10-11 07:00:39,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 07:00:39,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 07:00:39,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 07:00:39,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 07:00:39,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:00:37" (1/3) ... [2024-10-11 07:00:39,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4902a594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:00:39, skipping insertion in model container [2024-10-11 07:00:39,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:00:38" (2/3) ... [2024-10-11 07:00:39,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4902a594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:00:39, skipping insertion in model container [2024-10-11 07:00:39,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:00:39" (3/3) ... [2024-10-11 07:00:39,234 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-10-11 07:00:39,250 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 07:00:39,250 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 07:00:39,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 07:00:39,315 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;@44bfcf3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 07:00:39,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 07:00:39,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 86 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:39,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 07:00:39,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:39,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:00:39,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:39,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:39,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1552929030, now seen corresponding path program 1 times [2024-10-11 07:00:39,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:39,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33837050] [2024-10-11 07:00:39,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:39,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:39,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:39,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33837050] [2024-10-11 07:00:39,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33837050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:39,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:39,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:00:39,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386856343] [2024-10-11 07:00:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:39,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:00:39,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:39,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:00:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:00:39,976 INFO L87 Difference]: Start difference. First operand has 87 states, 85 states have (on average 1.5058823529411764) internal successors, (128), 86 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:40,030 INFO L93 Difference]: Finished difference Result 166 states and 246 transitions. [2024-10-11 07:00:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:00:40,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2024-10-11 07:00:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:40,045 INFO L225 Difference]: With dead ends: 166 [2024-10-11 07:00:40,046 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 07:00:40,049 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 [2024-10-11 07:00:40,053 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 364 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 [2024-10-11 07:00:40,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 364 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:00:40,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 07:00:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-11 07:00:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.471264367816092) internal successors, (128), 87 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 128 transitions. [2024-10-11 07:00:40,086 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 128 transitions. Word has length 12 [2024-10-11 07:00:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:40,086 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 128 transitions. [2024-10-11 07:00:40,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 128 transitions. [2024-10-11 07:00:40,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 07:00:40,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:40,087 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:00:40,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 07:00:40,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:40,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:40,088 INFO L85 PathProgramCache]: Analyzing trace with hash 897854879, now seen corresponding path program 1 times [2024-10-11 07:00:40,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:40,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826134751] [2024-10-11 07:00:40,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:40,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:40,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:40,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826134751] [2024-10-11 07:00:40,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826134751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:40,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:40,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:00:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502659965] [2024-10-11 07:00:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:40,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 07:00:40,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:40,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 07:00:40,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 07:00:40,221 INFO L87 Difference]: Start difference. First operand 88 states and 128 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:40,250 INFO L93 Difference]: Finished difference Result 169 states and 246 transitions. [2024-10-11 07:00:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 07:00:40,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2024-10-11 07:00:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:40,252 INFO L225 Difference]: With dead ends: 169 [2024-10-11 07:00:40,252 INFO L226 Difference]: Without dead ends: 90 [2024-10-11 07:00:40,253 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 [2024-10-11 07:00:40,254 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 361 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 [2024-10-11 07:00:40,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 361 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:00:40,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-11 07:00:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-11 07:00:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.4606741573033708) internal successors, (130), 89 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 130 transitions. [2024-10-11 07:00:40,268 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 130 transitions. Word has length 13 [2024-10-11 07:00:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:40,270 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 130 transitions. [2024-10-11 07:00:40,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 130 transitions. [2024-10-11 07:00:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 07:00:40,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:40,271 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:00:40,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 07:00:40,272 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:40,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash 965731583, now seen corresponding path program 1 times [2024-10-11 07:00:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:40,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372821184] [2024-10-11 07:00:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:40,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372821184] [2024-10-11 07:00:40,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372821184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:40,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:40,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:00:40,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065606756] [2024-10-11 07:00:40,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:40,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:00:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:00:40,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:00:40,632 INFO L87 Difference]: Start difference. First operand 90 states and 130 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:40,684 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-10-11 07:00:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:00:40,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2024-10-11 07:00:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:40,686 INFO L225 Difference]: With dead ends: 173 [2024-10-11 07:00:40,686 INFO L226 Difference]: Without dead ends: 92 [2024-10-11 07:00:40,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:00:40,688 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 8 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:40,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 471 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:00:40,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-11 07:00:40,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-11 07:00:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.4505494505494505) internal successors, (132), 91 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 132 transitions. [2024-10-11 07:00:40,701 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 132 transitions. Word has length 14 [2024-10-11 07:00:40,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:40,702 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 132 transitions. [2024-10-11 07:00:40,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 132 transitions. [2024-10-11 07:00:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 07:00:40,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:40,706 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:40,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 07:00:40,706 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:40,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash -261148119, now seen corresponding path program 1 times [2024-10-11 07:00:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:40,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317224814] [2024-10-11 07:00:40,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:40,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:41,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317224814] [2024-10-11 07:00:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317224814] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:00:41,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169007233] [2024-10-11 07:00:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:41,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:00:41,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:00:41,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:00:41,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 07:00:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:41,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-11 07:00:41,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:00:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 07:00:42,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 07:00:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:43,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169007233] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 07:00:43,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 07:00:43,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 16 [2024-10-11 07:00:43,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84087614] [2024-10-11 07:00:43,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 07:00:43,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 07:00:43,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:43,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 07:00:43,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-10-11 07:00:43,432 INFO L87 Difference]: Start difference. First operand 92 states and 132 transitions. Second operand has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:43,775 INFO L93 Difference]: Finished difference Result 176 states and 253 transitions. [2024-10-11 07:00:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:00:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 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 53 [2024-10-11 07:00:43,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:43,776 INFO L225 Difference]: With dead ends: 176 [2024-10-11 07:00:43,776 INFO L226 Difference]: Without dead ends: 95 [2024-10-11 07:00:43,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:43,778 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 258 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 960 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 [2024-10-11 07:00:43,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 960 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-11 07:00:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-10-11 07:00:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:43,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-10-11 07:00:43,785 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 53 [2024-10-11 07:00:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:43,786 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-10-11 07:00:43,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-10-11 07:00:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 07:00:43,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:43,788 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:43,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 07:00:43,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:00:43,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:43,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:43,990 INFO L85 PathProgramCache]: Analyzing trace with hash -332069670, now seen corresponding path program 1 times [2024-10-11 07:00:43,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:43,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689547297] [2024-10-11 07:00:43,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:43,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:45,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:45,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689547297] [2024-10-11 07:00:45,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689547297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:45,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:45,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 07:00:45,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711557565] [2024-10-11 07:00:45,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:45,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 07:00:45,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 07:00:45,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:45,478 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:45,822 INFO L93 Difference]: Finished difference Result 332 states and 480 transitions. [2024-10-11 07:00:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:00:45,822 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-10-11 07:00:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:45,825 INFO L225 Difference]: With dead ends: 332 [2024-10-11 07:00:45,825 INFO L226 Difference]: Without dead ends: 248 [2024-10-11 07:00:45,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:45,827 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 227 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:45,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1279 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:45,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-11 07:00:45,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 152. [2024-10-11 07:00:45,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4437086092715232) internal successors, (218), 151 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:45,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 218 transitions. [2024-10-11 07:00:45,838 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 218 transitions. Word has length 54 [2024-10-11 07:00:45,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:45,839 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 218 transitions. [2024-10-11 07:00:45,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 218 transitions. [2024-10-11 07:00:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 07:00:45,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:45,841 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:45,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 07:00:45,841 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:45,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:45,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1042908899, now seen corresponding path program 1 times [2024-10-11 07:00:45,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:45,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479999292] [2024-10-11 07:00:45,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:45,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:46,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:46,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479999292] [2024-10-11 07:00:46,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479999292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:46,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:46,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 07:00:46,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266586852] [2024-10-11 07:00:46,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:46,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 07:00:46,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:46,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 07:00:46,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:00:46,978 INFO L87 Difference]: Start difference. First operand 152 states and 218 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:47,343 INFO L93 Difference]: Finished difference Result 426 states and 620 transitions. [2024-10-11 07:00:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 07:00:47,344 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 07:00:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:47,346 INFO L225 Difference]: With dead ends: 426 [2024-10-11 07:00:47,346 INFO L226 Difference]: Without dead ends: 314 [2024-10-11 07:00:47,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:00:47,351 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 209 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:47,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1335 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-10-11 07:00:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 172. [2024-10-11 07:00:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.4444444444444444) internal successors, (247), 171 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions. [2024-10-11 07:00:47,373 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 55 [2024-10-11 07:00:47,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:47,374 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 247 transitions. [2024-10-11 07:00:47,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions. [2024-10-11 07:00:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 07:00:47,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:47,377 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:47,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 07:00:47,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:47,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash 668442764, now seen corresponding path program 1 times [2024-10-11 07:00:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:47,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546878826] [2024-10-11 07:00:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:48,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:48,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546878826] [2024-10-11 07:00:48,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546878826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:48,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:48,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 07:00:48,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932397810] [2024-10-11 07:00:48,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:48,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 07:00:48,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:48,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 07:00:48,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:00:48,444 INFO L87 Difference]: Start difference. First operand 172 states and 247 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:48,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:48,730 INFO L93 Difference]: Finished difference Result 457 states and 665 transitions. [2024-10-11 07:00:48,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 07:00:48,731 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 07:00:48,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:48,734 INFO L225 Difference]: With dead ends: 457 [2024-10-11 07:00:48,734 INFO L226 Difference]: Without dead ends: 328 [2024-10-11 07:00:48,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:00:48,736 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 123 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:48,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1308 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-11 07:00:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 239. [2024-10-11 07:00:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 1.4411764705882353) internal successors, (343), 238 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 343 transitions. [2024-10-11 07:00:48,754 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 343 transitions. Word has length 55 [2024-10-11 07:00:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:48,754 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 343 transitions. [2024-10-11 07:00:48,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 343 transitions. [2024-10-11 07:00:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 07:00:48,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:48,756 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:48,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 07:00:48,757 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:48,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:48,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1970068494, now seen corresponding path program 1 times [2024-10-11 07:00:48,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:48,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804727162] [2024-10-11 07:00:48,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:48,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:50,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:50,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804727162] [2024-10-11 07:00:50,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804727162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:50,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:50,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 07:00:50,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553181156] [2024-10-11 07:00:50,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:50,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 07:00:50,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:50,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 07:00:50,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:00:50,103 INFO L87 Difference]: Start difference. First operand 239 states and 343 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:50,470 INFO L93 Difference]: Finished difference Result 538 states and 775 transitions. [2024-10-11 07:00:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:00:50,471 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 07:00:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:50,473 INFO L225 Difference]: With dead ends: 538 [2024-10-11 07:00:50,474 INFO L226 Difference]: Without dead ends: 442 [2024-10-11 07:00:50,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:00:50,475 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 148 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:50,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1205 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-11 07:00:50,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 321. [2024-10-11 07:00:50,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.45) internal successors, (464), 320 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:50,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 464 transitions. [2024-10-11 07:00:50,486 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 464 transitions. Word has length 55 [2024-10-11 07:00:50,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:50,486 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 464 transitions. [2024-10-11 07:00:50,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:50,487 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 464 transitions. [2024-10-11 07:00:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:50,488 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:50,488 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:50,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 07:00:50,488 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:50,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:50,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1927844567, now seen corresponding path program 1 times [2024-10-11 07:00:50,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:50,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923200951] [2024-10-11 07:00:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:50,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:50,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923200951] [2024-10-11 07:00:50,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923200951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:50,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:50,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:00:50,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010804415] [2024-10-11 07:00:50,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:50,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:00:50,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:50,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:00:50,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:00:50,871 INFO L87 Difference]: Start difference. First operand 321 states and 464 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:50,925 INFO L93 Difference]: Finished difference Result 497 states and 719 transitions. [2024-10-11 07:00:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:00:50,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:50,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:50,928 INFO L225 Difference]: With dead ends: 497 [2024-10-11 07:00:50,928 INFO L226 Difference]: Without dead ends: 357 [2024-10-11 07:00:50,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:00:50,929 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 51 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:50,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 812 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:00:50,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-11 07:00:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 344. [2024-10-11 07:00:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.4314868804664722) internal successors, (491), 343 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 491 transitions. [2024-10-11 07:00:50,937 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 491 transitions. Word has length 56 [2024-10-11 07:00:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:50,938 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 491 transitions. [2024-10-11 07:00:50,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 491 transitions. [2024-10-11 07:00:50,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:50,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:50,940 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:50,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 07:00:50,941 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:50,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:50,942 INFO L85 PathProgramCache]: Analyzing trace with hash -375438434, now seen corresponding path program 1 times [2024-10-11 07:00:50,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:50,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751821393] [2024-10-11 07:00:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:50,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:51,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:51,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751821393] [2024-10-11 07:00:51,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751821393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:51,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:51,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 07:00:51,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061375262] [2024-10-11 07:00:51,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:51,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:00:51,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:00:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:00:51,332 INFO L87 Difference]: Start difference. First operand 344 states and 491 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:51,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:51,383 INFO L93 Difference]: Finished difference Result 494 states and 705 transitions. [2024-10-11 07:00:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:00:51,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:51,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:51,385 INFO L225 Difference]: With dead ends: 494 [2024-10-11 07:00:51,385 INFO L226 Difference]: Without dead ends: 349 [2024-10-11 07:00:51,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 07:00:51,386 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 47 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:51,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 613 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:00:51,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-11 07:00:51,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 338. [2024-10-11 07:00:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.4065281899109792) internal successors, (474), 337 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 474 transitions. [2024-10-11 07:00:51,394 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 474 transitions. Word has length 56 [2024-10-11 07:00:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:51,394 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 474 transitions. [2024-10-11 07:00:51,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 474 transitions. [2024-10-11 07:00:51,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:51,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:51,396 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:51,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 07:00:51,397 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:51,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:51,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1725901768, now seen corresponding path program 1 times [2024-10-11 07:00:51,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:51,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792106810] [2024-10-11 07:00:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:51,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:52,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:52,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792106810] [2024-10-11 07:00:52,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792106810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:52,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:52,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 07:00:52,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166888472] [2024-10-11 07:00:52,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:52,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 07:00:52,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:52,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 07:00:52,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:52,356 INFO L87 Difference]: Start difference. First operand 338 states and 474 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:52,587 INFO L93 Difference]: Finished difference Result 638 states and 902 transitions. [2024-10-11 07:00:52,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:00:52,588 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:52,590 INFO L225 Difference]: With dead ends: 638 [2024-10-11 07:00:52,590 INFO L226 Difference]: Without dead ends: 511 [2024-10-11 07:00:52,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:52,591 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 124 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:52,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1248 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:00:52,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-10-11 07:00:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 432. [2024-10-11 07:00:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 431 states have (on average 1.4037122969837588) internal successors, (605), 431 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:52,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 605 transitions. [2024-10-11 07:00:52,601 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 605 transitions. Word has length 56 [2024-10-11 07:00:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:52,601 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 605 transitions. [2024-10-11 07:00:52,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:52,602 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 605 transitions. [2024-10-11 07:00:52,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:52,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:52,603 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:52,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 07:00:52,603 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:52,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:52,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1435452191, now seen corresponding path program 1 times [2024-10-11 07:00:52,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:52,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301251884] [2024-10-11 07:00:52,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:52,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:53,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:53,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301251884] [2024-10-11 07:00:53,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301251884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:53,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:53,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 07:00:53,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382764437] [2024-10-11 07:00:53,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:53,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 07:00:53,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:53,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 07:00:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:53,548 INFO L87 Difference]: Start difference. First operand 432 states and 605 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:53,766 INFO L93 Difference]: Finished difference Result 632 states and 887 transitions. [2024-10-11 07:00:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:00:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:53,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:53,769 INFO L225 Difference]: With dead ends: 632 [2024-10-11 07:00:53,769 INFO L226 Difference]: Without dead ends: 547 [2024-10-11 07:00:53,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:53,770 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 299 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:53,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1258 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:00:53,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-10-11 07:00:53,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 442. [2024-10-11 07:00:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 1.4058956916099774) internal successors, (620), 441 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:53,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 620 transitions. [2024-10-11 07:00:53,780 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 620 transitions. Word has length 56 [2024-10-11 07:00:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:53,781 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 620 transitions. [2024-10-11 07:00:53,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:53,781 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 620 transitions. [2024-10-11 07:00:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:53,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:53,782 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:53,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 07:00:53,783 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:53,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:53,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1510101950, now seen corresponding path program 1 times [2024-10-11 07:00:53,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:53,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132730818] [2024-10-11 07:00:53,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:53,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132730818] [2024-10-11 07:00:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132730818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:54,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:54,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 07:00:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419804358] [2024-10-11 07:00:54,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:54,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 07:00:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 07:00:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:00:54,366 INFO L87 Difference]: Start difference. First operand 442 states and 620 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:54,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:54,497 INFO L93 Difference]: Finished difference Result 691 states and 973 transitions. [2024-10-11 07:00:54,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 07:00:54,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:54,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:54,500 INFO L225 Difference]: With dead ends: 691 [2024-10-11 07:00:54,500 INFO L226 Difference]: Without dead ends: 606 [2024-10-11 07:00:54,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:00:54,501 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 103 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:54,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 528 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:00:54,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-10-11 07:00:54,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 482. [2024-10-11 07:00:54,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.4178794178794178) internal successors, (682), 481 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 682 transitions. [2024-10-11 07:00:54,511 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 682 transitions. Word has length 56 [2024-10-11 07:00:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:54,511 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 682 transitions. [2024-10-11 07:00:54,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 682 transitions. [2024-10-11 07:00:54,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:54,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:54,512 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:54,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 07:00:54,513 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:54,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:54,513 INFO L85 PathProgramCache]: Analyzing trace with hash 976445161, now seen corresponding path program 1 times [2024-10-11 07:00:54,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:54,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391977967] [2024-10-11 07:00:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:54,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:55,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:55,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391977967] [2024-10-11 07:00:55,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391977967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:55,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:55,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-11 07:00:55,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559853506] [2024-10-11 07:00:55,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:55,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 07:00:55,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:55,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 07:00:55,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:00:55,787 INFO L87 Difference]: Start difference. First operand 482 states and 682 transitions. Second operand has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:56,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:56,140 INFO L93 Difference]: Finished difference Result 946 states and 1346 transitions. [2024-10-11 07:00:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 07:00:56,141 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:56,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:56,144 INFO L225 Difference]: With dead ends: 946 [2024-10-11 07:00:56,144 INFO L226 Difference]: Without dead ends: 848 [2024-10-11 07:00:56,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-10-11 07:00:56,146 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 645 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:56,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1567 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-10-11 07:00:56,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 525. [2024-10-11 07:00:56,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.4217557251908397) internal successors, (745), 524 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 745 transitions. [2024-10-11 07:00:56,157 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 745 transitions. Word has length 56 [2024-10-11 07:00:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:56,157 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 745 transitions. [2024-10-11 07:00:56,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 745 transitions. [2024-10-11 07:00:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:56,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:56,159 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:56,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 07:00:56,159 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:56,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:56,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1954979724, now seen corresponding path program 1 times [2024-10-11 07:00:56,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:56,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709949742] [2024-10-11 07:00:56,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:56,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:56,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:56,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709949742] [2024-10-11 07:00:56,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709949742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:56,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:56,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 07:00:56,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93854479] [2024-10-11 07:00:56,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:56,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:00:56,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:56,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:00:56,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:00:56,334 INFO L87 Difference]: Start difference. First operand 525 states and 745 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:56,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:56,371 INFO L93 Difference]: Finished difference Result 756 states and 1074 transitions. [2024-10-11 07:00:56,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 07:00:56,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:56,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:56,373 INFO L225 Difference]: With dead ends: 756 [2024-10-11 07:00:56,373 INFO L226 Difference]: Without dead ends: 528 [2024-10-11 07:00:56,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:00:56,375 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 39 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:56,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 585 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:00:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-10-11 07:00:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 526. [2024-10-11 07:00:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.3885714285714286) internal successors, (729), 525 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:56,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 729 transitions. [2024-10-11 07:00:56,383 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 729 transitions. Word has length 56 [2024-10-11 07:00:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:56,383 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 729 transitions. [2024-10-11 07:00:56,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:56,384 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 729 transitions. [2024-10-11 07:00:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:56,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:56,385 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:56,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 07:00:56,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:56,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:56,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1532597459, now seen corresponding path program 1 times [2024-10-11 07:00:56,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:56,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510160354] [2024-10-11 07:00:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:57,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:57,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510160354] [2024-10-11 07:00:57,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510160354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:57,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:57,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 07:00:57,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346351213] [2024-10-11 07:00:57,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:57,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 07:00:57,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:57,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 07:00:57,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:00:57,461 INFO L87 Difference]: Start difference. First operand 526 states and 729 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:58,094 INFO L93 Difference]: Finished difference Result 978 states and 1366 transitions. [2024-10-11 07:00:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 07:00:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:58,098 INFO L225 Difference]: With dead ends: 978 [2024-10-11 07:00:58,098 INFO L226 Difference]: Without dead ends: 835 [2024-10-11 07:00:58,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2024-10-11 07:00:58,100 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 518 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:58,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2010 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 07:00:58,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-10-11 07:00:58,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 575. [2024-10-11 07:00:58,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.397212543554007) internal successors, (802), 574 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 802 transitions. [2024-10-11 07:00:58,113 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 802 transitions. Word has length 56 [2024-10-11 07:00:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:58,114 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 802 transitions. [2024-10-11 07:00:58,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 802 transitions. [2024-10-11 07:00:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:58,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:58,115 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:58,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 07:00:58,116 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:58,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:58,116 INFO L85 PathProgramCache]: Analyzing trace with hash -882083109, now seen corresponding path program 1 times [2024-10-11 07:00:58,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:58,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684798933] [2024-10-11 07:00:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:58,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:58,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:58,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:58,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684798933] [2024-10-11 07:00:58,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684798933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:58,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:58,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-11 07:00:58,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067287029] [2024-10-11 07:00:58,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:58,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 07:00:58,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:58,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 07:00:58,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-10-11 07:00:58,858 INFO L87 Difference]: Start difference. First operand 575 states and 802 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:59,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:59,262 INFO L93 Difference]: Finished difference Result 1163 states and 1642 transitions. [2024-10-11 07:00:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 07:00:59,263 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:59,266 INFO L225 Difference]: With dead ends: 1163 [2024-10-11 07:00:59,268 INFO L226 Difference]: Without dead ends: 977 [2024-10-11 07:00:59,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:00:59,269 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 426 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:59,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1948 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:00:59,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-10-11 07:00:59,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 666. [2024-10-11 07:00:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 1.3984962406015038) internal successors, (930), 665 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:59,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 930 transitions. [2024-10-11 07:00:59,282 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 930 transitions. Word has length 56 [2024-10-11 07:00:59,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:59,283 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 930 transitions. [2024-10-11 07:00:59,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 930 transitions. [2024-10-11 07:00:59,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:59,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:59,284 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:59,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 07:00:59,285 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:59,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:59,285 INFO L85 PathProgramCache]: Analyzing trace with hash -99808030, now seen corresponding path program 1 times [2024-10-11 07:00:59,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:59,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514380853] [2024-10-11 07:00:59,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:59,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:00:59,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:00:59,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:00:59,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514380853] [2024-10-11 07:00:59,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514380853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:00:59,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:00:59,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 07:00:59,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639933240] [2024-10-11 07:00:59,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:00:59,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 07:00:59,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:00:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 07:00:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:00:59,780 INFO L87 Difference]: Start difference. First operand 666 states and 930 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:00:59,846 INFO L93 Difference]: Finished difference Result 1032 states and 1436 transitions. [2024-10-11 07:00:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 07:00:59,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:00:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:00:59,849 INFO L225 Difference]: With dead ends: 1032 [2024-10-11 07:00:59,849 INFO L226 Difference]: Without dead ends: 777 [2024-10-11 07:00:59,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:00:59,851 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 69 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:00:59,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 851 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:00:59,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-10-11 07:00:59,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 732. [2024-10-11 07:00:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.372093023255814) internal successors, (1003), 731 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1003 transitions. [2024-10-11 07:00:59,863 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1003 transitions. Word has length 56 [2024-10-11 07:00:59,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:00:59,863 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1003 transitions. [2024-10-11 07:00:59,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:00:59,863 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1003 transitions. [2024-10-11 07:00:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:00:59,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:00:59,865 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:00:59,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 07:00:59,865 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:00:59,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:00:59,866 INFO L85 PathProgramCache]: Analyzing trace with hash 47266089, now seen corresponding path program 1 times [2024-10-11 07:00:59,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:00:59,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349211116] [2024-10-11 07:00:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:00:59,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:00:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:00,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:00,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349211116] [2024-10-11 07:01:00,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349211116] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:01:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372698689] [2024-10-11 07:01:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:00,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:00,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:01:00,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:01:00,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 07:01:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:00,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-10-11 07:01:00,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:01:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:01,199 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:01:01,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372698689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:01,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:01:01,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 20 [2024-10-11 07:01:01,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624550458] [2024-10-11 07:01:01,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:01,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 07:01:01,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:01,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 07:01:01,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:01,201 INFO L87 Difference]: Start difference. First operand 732 states and 1003 transitions. Second operand has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:02,099 INFO L93 Difference]: Finished difference Result 1190 states and 1649 transitions. [2024-10-11 07:01:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 07:01:02,099 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:01:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:02,103 INFO L225 Difference]: With dead ends: 1190 [2024-10-11 07:01:02,103 INFO L226 Difference]: Without dead ends: 960 [2024-10-11 07:01:02,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 07:01:02,104 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 165 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:02,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1297 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 07:01:02,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-10-11 07:01:02,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 920. [2024-10-11 07:01:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 919 states have (on average 1.3721436343852014) internal successors, (1261), 919 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1261 transitions. [2024-10-11 07:01:02,119 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1261 transitions. Word has length 56 [2024-10-11 07:01:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:02,120 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1261 transitions. [2024-10-11 07:01:02,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1261 transitions. [2024-10-11 07:01:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:01:02,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:02,122 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:02,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 07:01:02,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:02,326 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:02,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:02,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1029694035, now seen corresponding path program 1 times [2024-10-11 07:01:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:02,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793237573] [2024-10-11 07:01:02,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:02,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:02,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793237573] [2024-10-11 07:01:02,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793237573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:02,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:02,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-11 07:01:02,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669595048] [2024-10-11 07:01:02,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:02,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 07:01:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 07:01:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-11 07:01:02,874 INFO L87 Difference]: Start difference. First operand 920 states and 1261 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:03,044 INFO L93 Difference]: Finished difference Result 1443 states and 1999 transitions. [2024-10-11 07:01:03,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 07:01:03,044 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:01:03,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:03,047 INFO L225 Difference]: With dead ends: 1443 [2024-10-11 07:01:03,048 INFO L226 Difference]: Without dead ends: 1145 [2024-10-11 07:01:03,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-10-11 07:01:03,049 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 91 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:03,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1359 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-10-11 07:01:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1037. [2024-10-11 07:01:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1036 states have (on average 1.3725868725868726) internal successors, (1422), 1036 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1422 transitions. [2024-10-11 07:01:03,067 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1422 transitions. Word has length 56 [2024-10-11 07:01:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:03,067 INFO L471 AbstractCegarLoop]: Abstraction has 1037 states and 1422 transitions. [2024-10-11 07:01:03,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1422 transitions. [2024-10-11 07:01:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:01:03,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:03,069 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:03,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 07:01:03,069 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:03,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2054915444, now seen corresponding path program 1 times [2024-10-11 07:01:03,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:03,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944164842] [2024-10-11 07:01:03,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:03,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:03,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944164842] [2024-10-11 07:01:03,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944164842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:03,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:03,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 07:01:03,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481422140] [2024-10-11 07:01:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:03,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 07:01:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 07:01:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:01:03,629 INFO L87 Difference]: Start difference. First operand 1037 states and 1422 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:03,756 INFO L93 Difference]: Finished difference Result 1383 states and 1911 transitions. [2024-10-11 07:01:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 07:01:03,757 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:01:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:03,761 INFO L225 Difference]: With dead ends: 1383 [2024-10-11 07:01:03,761 INFO L226 Difference]: Without dead ends: 1092 [2024-10-11 07:01:03,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:01:03,762 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 90 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:03,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 907 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:03,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-10-11 07:01:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1049. [2024-10-11 07:01:03,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 1048 states have (on average 1.3702290076335877) internal successors, (1436), 1048 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1436 transitions. [2024-10-11 07:01:03,784 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1436 transitions. Word has length 56 [2024-10-11 07:01:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:03,785 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1436 transitions. [2024-10-11 07:01:03,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1436 transitions. [2024-10-11 07:01:03,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:01:03,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:03,787 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:03,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 07:01:03,787 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:03,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:03,788 INFO L85 PathProgramCache]: Analyzing trace with hash -281264891, now seen corresponding path program 1 times [2024-10-11 07:01:03,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:03,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081491359] [2024-10-11 07:01:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:03,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:05,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081491359] [2024-10-11 07:01:05,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081491359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:05,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:05,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 07:01:05,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423721258] [2024-10-11 07:01:05,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:05,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 07:01:05,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:05,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 07:01:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:01:05,076 INFO L87 Difference]: Start difference. First operand 1049 states and 1436 transitions. Second operand has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:05,404 INFO L93 Difference]: Finished difference Result 1639 states and 2257 transitions. [2024-10-11 07:01:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 07:01:05,407 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:01:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:05,412 INFO L225 Difference]: With dead ends: 1639 [2024-10-11 07:01:05,412 INFO L226 Difference]: Without dead ends: 1335 [2024-10-11 07:01:05,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:01:05,415 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 125 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:05,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1702 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:05,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-10-11 07:01:05,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1232. [2024-10-11 07:01:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 1.3590576766856215) internal successors, (1673), 1231 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1673 transitions. [2024-10-11 07:01:05,443 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1673 transitions. Word has length 56 [2024-10-11 07:01:05,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:05,444 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1673 transitions. [2024-10-11 07:01:05,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1673 transitions. [2024-10-11 07:01:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:01:05,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:05,447 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:05,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 07:01:05,447 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:05,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1430086772, now seen corresponding path program 1 times [2024-10-11 07:01:05,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:05,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19687116] [2024-10-11 07:01:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:05,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:05,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:05,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19687116] [2024-10-11 07:01:05,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19687116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:05,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:05,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:01:05,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048656436] [2024-10-11 07:01:05,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:05,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:01:05,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:05,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:01:05,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-11 07:01:05,824 INFO L87 Difference]: Start difference. First operand 1232 states and 1673 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:06,118 INFO L93 Difference]: Finished difference Result 2140 states and 2937 transitions. [2024-10-11 07:01:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:01:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:01:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:06,123 INFO L225 Difference]: With dead ends: 2140 [2024-10-11 07:01:06,123 INFO L226 Difference]: Without dead ends: 1853 [2024-10-11 07:01:06,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:01:06,125 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 183 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:06,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 976 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-10-11 07:01:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1736. [2024-10-11 07:01:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1735 states have (on average 1.364265129682997) internal successors, (2367), 1735 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2367 transitions. [2024-10-11 07:01:06,153 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2367 transitions. Word has length 56 [2024-10-11 07:01:06,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:06,153 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2367 transitions. [2024-10-11 07:01:06,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:06,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2367 transitions. [2024-10-11 07:01:06,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 07:01:06,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:06,157 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:06,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 07:01:06,157 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:06,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:06,157 INFO L85 PathProgramCache]: Analyzing trace with hash 300537144, now seen corresponding path program 1 times [2024-10-11 07:01:06,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:06,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228056329] [2024-10-11 07:01:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:06,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228056329] [2024-10-11 07:01:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228056329] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:01:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239195355] [2024-10-11 07:01:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:06,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:06,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:01:06,436 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:01:06,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 07:01:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:06,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-11 07:01:06,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:01:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:07,021 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:01:07,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239195355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:07,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:01:07,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2024-10-11 07:01:07,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293802079] [2024-10-11 07:01:07,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:07,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 07:01:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:07,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 07:01:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:01:07,023 INFO L87 Difference]: Start difference. First operand 1736 states and 2367 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:07,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:07,270 INFO L93 Difference]: Finished difference Result 2201 states and 3046 transitions. [2024-10-11 07:01:07,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:01:07,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-10-11 07:01:07,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:07,275 INFO L225 Difference]: With dead ends: 2201 [2024-10-11 07:01:07,275 INFO L226 Difference]: Without dead ends: 1758 [2024-10-11 07:01:07,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 07:01:07,277 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 168 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:07,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 630 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2024-10-11 07:01:07,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1749. [2024-10-11 07:01:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1748 states have (on average 1.3649885583524028) internal successors, (2386), 1748 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2386 transitions. [2024-10-11 07:01:07,308 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2386 transitions. Word has length 56 [2024-10-11 07:01:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:07,308 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2386 transitions. [2024-10-11 07:01:07,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2386 transitions. [2024-10-11 07:01:07,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:07,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:07,315 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:07,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 07:01:07,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:07,520 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:07,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:07,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1652151196, now seen corresponding path program 1 times [2024-10-11 07:01:07,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:07,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260888579] [2024-10-11 07:01:07,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:07,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260888579] [2024-10-11 07:01:08,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260888579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:08,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:08,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 07:01:08,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837364457] [2024-10-11 07:01:08,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:08,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 07:01:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:08,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 07:01:08,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:01:08,352 INFO L87 Difference]: Start difference. First operand 1749 states and 2386 transitions. Second operand has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:08,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:08,658 INFO L93 Difference]: Finished difference Result 2860 states and 3966 transitions. [2024-10-11 07:01:08,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 07:01:08,659 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:08,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:08,664 INFO L225 Difference]: With dead ends: 2860 [2024-10-11 07:01:08,664 INFO L226 Difference]: Without dead ends: 2407 [2024-10-11 07:01:08,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:01:08,666 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 311 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:08,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1802 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:08,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2024-10-11 07:01:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 1807. [2024-10-11 07:01:08,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1806 states have (on average 1.3648947951273533) internal successors, (2465), 1806 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2465 transitions. [2024-10-11 07:01:08,702 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2465 transitions. Word has length 57 [2024-10-11 07:01:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:08,703 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 2465 transitions. [2024-10-11 07:01:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2465 transitions. [2024-10-11 07:01:08,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:08,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:08,706 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:08,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 07:01:08,707 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:08,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1293402945, now seen corresponding path program 1 times [2024-10-11 07:01:08,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:08,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54800218] [2024-10-11 07:01:08,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:08,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:09,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:09,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54800218] [2024-10-11 07:01:09,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54800218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:09,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:09,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 07:01:09,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524773374] [2024-10-11 07:01:09,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:09,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 07:01:09,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:09,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 07:01:09,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:01:09,067 INFO L87 Difference]: Start difference. First operand 1807 states and 2465 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:09,300 INFO L93 Difference]: Finished difference Result 2564 states and 3546 transitions. [2024-10-11 07:01:09,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:01:09,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:09,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:09,307 INFO L225 Difference]: With dead ends: 2564 [2024-10-11 07:01:09,307 INFO L226 Difference]: Without dead ends: 2089 [2024-10-11 07:01:09,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:01:09,309 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 140 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:09,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 682 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-10-11 07:01:09,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1794. [2024-10-11 07:01:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1793 states have (on average 1.3575013943112102) internal successors, (2434), 1793 states have internal predecessors, (2434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:09,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2434 transitions. [2024-10-11 07:01:09,340 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2434 transitions. Word has length 57 [2024-10-11 07:01:09,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:09,340 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2434 transitions. [2024-10-11 07:01:09,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2434 transitions. [2024-10-11 07:01:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:09,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:09,344 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:09,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 07:01:09,345 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:09,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:09,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1009880056, now seen corresponding path program 1 times [2024-10-11 07:01:09,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:09,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584829771] [2024-10-11 07:01:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:09,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:09,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584829771] [2024-10-11 07:01:09,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584829771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:09,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:09,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:01:09,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56404970] [2024-10-11 07:01:09,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:09,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:01:09,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:01:09,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:01:09,601 INFO L87 Difference]: Start difference. First operand 1794 states and 2434 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:09,669 INFO L93 Difference]: Finished difference Result 2343 states and 3214 transitions. [2024-10-11 07:01:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 07:01:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:09,676 INFO L225 Difference]: With dead ends: 2343 [2024-10-11 07:01:09,676 INFO L226 Difference]: Without dead ends: 1880 [2024-10-11 07:01:09,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:01:09,678 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 33 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:09,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 783 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:09,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-10-11 07:01:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1829. [2024-10-11 07:01:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1828 states have (on average 1.3550328227571116) internal successors, (2477), 1828 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2477 transitions. [2024-10-11 07:01:09,706 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2477 transitions. Word has length 57 [2024-10-11 07:01:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:09,706 INFO L471 AbstractCegarLoop]: Abstraction has 1829 states and 2477 transitions. [2024-10-11 07:01:09,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2477 transitions. [2024-10-11 07:01:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:09,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:09,710 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:09,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 07:01:09,710 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:09,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1508999287, now seen corresponding path program 1 times [2024-10-11 07:01:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:09,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602543894] [2024-10-11 07:01:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:11,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:11,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602543894] [2024-10-11 07:01:11,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602543894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:11,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:11,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-10-11 07:01:11,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290381560] [2024-10-11 07:01:11,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:11,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 07:01:11,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:11,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 07:01:11,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2024-10-11 07:01:11,513 INFO L87 Difference]: Start difference. First operand 1829 states and 2477 transitions. Second operand has 28 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 27 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:12,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:12,416 INFO L93 Difference]: Finished difference Result 2715 states and 3716 transitions. [2024-10-11 07:01:12,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 07:01:12,417 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 27 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:12,424 INFO L225 Difference]: With dead ends: 2715 [2024-10-11 07:01:12,424 INFO L226 Difference]: Without dead ends: 2232 [2024-10-11 07:01:12,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=100, Invalid=956, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 07:01:12,426 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 151 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:12,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1490 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 07:01:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-10-11 07:01:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1978. [2024-10-11 07:01:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.3555892766818411) internal successors, (2680), 1977 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:12,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2680 transitions. [2024-10-11 07:01:12,462 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2680 transitions. Word has length 57 [2024-10-11 07:01:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:12,462 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2680 transitions. [2024-10-11 07:01:12,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.0357142857142856) internal successors, (57), 27 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2680 transitions. [2024-10-11 07:01:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:12,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:12,467 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:12,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 07:01:12,467 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:12,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1548685677, now seen corresponding path program 1 times [2024-10-11 07:01:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294479697] [2024-10-11 07:01:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:12,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:12,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294479697] [2024-10-11 07:01:12,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294479697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:01:12,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055992316] [2024-10-11 07:01:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:12,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:12,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:01:12,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:01:12,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 07:01:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:12,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-11 07:01:12,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:01:13,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:13,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:01:13,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055992316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:13,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:01:13,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 19 [2024-10-11 07:01:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8842638] [2024-10-11 07:01:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:13,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 07:01:13,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:13,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 07:01:13,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:01:13,286 INFO L87 Difference]: Start difference. First operand 1978 states and 2680 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:13,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:13,430 INFO L93 Difference]: Finished difference Result 2840 states and 3900 transitions. [2024-10-11 07:01:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 07:01:13,431 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:13,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:13,438 INFO L225 Difference]: With dead ends: 2840 [2024-10-11 07:01:13,439 INFO L226 Difference]: Without dead ends: 2327 [2024-10-11 07:01:13,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:01:13,441 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 193 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:13,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1031 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:13,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2024-10-11 07:01:13,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2170. [2024-10-11 07:01:13,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 2169 states have (on average 1.3563854310742278) internal successors, (2942), 2169 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2942 transitions. [2024-10-11 07:01:13,478 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2942 transitions. Word has length 57 [2024-10-11 07:01:13,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:13,478 INFO L471 AbstractCegarLoop]: Abstraction has 2170 states and 2942 transitions. [2024-10-11 07:01:13,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2942 transitions. [2024-10-11 07:01:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:13,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:13,482 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:13,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 07:01:13,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 07:01:13,683 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:13,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:13,684 INFO L85 PathProgramCache]: Analyzing trace with hash -457050595, now seen corresponding path program 1 times [2024-10-11 07:01:13,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803468307] [2024-10-11 07:01:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:14,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:14,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803468307] [2024-10-11 07:01:14,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803468307] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 07:01:14,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187600663] [2024-10-11 07:01:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:14,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:14,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:01:14,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:01:14,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 07:01:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:15,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-11 07:01:15,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 07:01:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:15,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 07:01:15,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187600663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:15,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 07:01:15,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [23] total 30 [2024-10-11 07:01:15,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122553420] [2024-10-11 07:01:15,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:15,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 07:01:15,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:15,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 07:01:15,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=848, Unknown=0, NotChecked=0, Total=930 [2024-10-11 07:01:15,651 INFO L87 Difference]: Start difference. First operand 2170 states and 2942 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:15,945 INFO L93 Difference]: Finished difference Result 2846 states and 3912 transitions. [2024-10-11 07:01:15,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 07:01:15,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:15,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:15,950 INFO L225 Difference]: With dead ends: 2846 [2024-10-11 07:01:15,950 INFO L226 Difference]: Without dead ends: 2234 [2024-10-11 07:01:15,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1089, Unknown=0, NotChecked=0, Total=1190 [2024-10-11 07:01:15,953 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 148 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:15,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 732 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2024-10-11 07:01:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2164. [2024-10-11 07:01:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2163 states have (on average 1.3546000924641701) internal successors, (2930), 2163 states have internal predecessors, (2930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 2930 transitions. [2024-10-11 07:01:15,995 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 2930 transitions. Word has length 57 [2024-10-11 07:01:15,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:15,995 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 2930 transitions. [2024-10-11 07:01:15,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 2930 transitions. [2024-10-11 07:01:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:16,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:16,000 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:16,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 07:01:16,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:01:16,201 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:16,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:16,201 INFO L85 PathProgramCache]: Analyzing trace with hash 395591332, now seen corresponding path program 1 times [2024-10-11 07:01:16,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:16,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772508609] [2024-10-11 07:01:16,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:16,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:16,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:16,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772508609] [2024-10-11 07:01:16,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772508609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:16,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:16,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 07:01:16,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921754914] [2024-10-11 07:01:16,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:16,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 07:01:16,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:16,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 07:01:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:01:16,916 INFO L87 Difference]: Start difference. First operand 2164 states and 2930 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:17,260 INFO L93 Difference]: Finished difference Result 3305 states and 4534 transitions. [2024-10-11 07:01:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 07:01:17,261 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:17,266 INFO L225 Difference]: With dead ends: 3305 [2024-10-11 07:01:17,267 INFO L226 Difference]: Without dead ends: 2705 [2024-10-11 07:01:17,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-10-11 07:01:17,269 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 367 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:17,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1552 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-10-11 07:01:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2440. [2024-10-11 07:01:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 2439 states have (on average 1.3567035670356704) internal successors, (3309), 2439 states have internal predecessors, (3309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3309 transitions. [2024-10-11 07:01:17,302 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3309 transitions. Word has length 57 [2024-10-11 07:01:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:17,302 INFO L471 AbstractCegarLoop]: Abstraction has 2440 states and 3309 transitions. [2024-10-11 07:01:17,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3309 transitions. [2024-10-11 07:01:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:17,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:17,307 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:17,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-11 07:01:17,307 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:17,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1363165644, now seen corresponding path program 1 times [2024-10-11 07:01:17,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:17,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253548144] [2024-10-11 07:01:17,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:17,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:18,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:18,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253548144] [2024-10-11 07:01:18,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253548144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:18,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:18,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 07:01:18,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241434997] [2024-10-11 07:01:18,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:18,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 07:01:18,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:18,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 07:01:18,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:01:18,301 INFO L87 Difference]: Start difference. First operand 2440 states and 3309 transitions. Second operand has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:18,534 INFO L93 Difference]: Finished difference Result 3492 states and 4793 transitions. [2024-10-11 07:01:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:01:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:18,538 INFO L225 Difference]: With dead ends: 3492 [2024-10-11 07:01:18,539 INFO L226 Difference]: Without dead ends: 2797 [2024-10-11 07:01:18,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:18,541 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 168 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:18,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1107 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2024-10-11 07:01:18,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2558. [2024-10-11 07:01:18,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2557 states have (on average 1.355885803676183) internal successors, (3467), 2557 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:18,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3467 transitions. [2024-10-11 07:01:18,572 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3467 transitions. Word has length 57 [2024-10-11 07:01:18,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:18,572 INFO L471 AbstractCegarLoop]: Abstraction has 2558 states and 3467 transitions. [2024-10-11 07:01:18,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:18,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3467 transitions. [2024-10-11 07:01:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:18,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:18,577 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-11 07:01:18,578 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:18,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1195582482, now seen corresponding path program 1 times [2024-10-11 07:01:18,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602954721] [2024-10-11 07:01:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:19,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:19,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602954721] [2024-10-11 07:01:19,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602954721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:19,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:19,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 07:01:19,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683434383] [2024-10-11 07:01:19,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:19,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 07:01:19,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:19,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 07:01:19,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:01:19,152 INFO L87 Difference]: Start difference. First operand 2558 states and 3467 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:19,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:19,348 INFO L93 Difference]: Finished difference Result 3492 states and 4792 transitions. [2024-10-11 07:01:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:01:19,349 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:19,352 INFO L225 Difference]: With dead ends: 3492 [2024-10-11 07:01:19,352 INFO L226 Difference]: Without dead ends: 2793 [2024-10-11 07:01:19,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:01:19,354 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:19,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1441 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-10-11 07:01:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2620. [2024-10-11 07:01:19,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 2619 states have (on average 1.353570064910271) internal successors, (3545), 2619 states have internal predecessors, (3545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:19,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3545 transitions. [2024-10-11 07:01:19,396 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3545 transitions. Word has length 57 [2024-10-11 07:01:19,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:19,396 INFO L471 AbstractCegarLoop]: Abstraction has 2620 states and 3545 transitions. [2024-10-11 07:01:19,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3545 transitions. [2024-10-11 07:01:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:19,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:19,403 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:19,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-11 07:01:19,404 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:19,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2056461945, now seen corresponding path program 1 times [2024-10-11 07:01:19,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:19,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109937533] [2024-10-11 07:01:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:19,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:20,125 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:20,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:20,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109937533] [2024-10-11 07:01:20,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109937533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:20,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:20,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-11 07:01:20,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473127654] [2024-10-11 07:01:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:20,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 07:01:20,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:20,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 07:01:20,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-10-11 07:01:20,128 INFO L87 Difference]: Start difference. First operand 2620 states and 3545 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:20,275 INFO L93 Difference]: Finished difference Result 3516 states and 4802 transitions. [2024-10-11 07:01:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 07:01:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:20,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:20,280 INFO L225 Difference]: With dead ends: 3516 [2024-10-11 07:01:20,280 INFO L226 Difference]: Without dead ends: 2809 [2024-10-11 07:01:20,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-10-11 07:01:20,281 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 146 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:20,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1259 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:20,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2024-10-11 07:01:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2677. [2024-10-11 07:01:20,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2676 states have (on average 1.350896860986547) internal successors, (3615), 2676 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3615 transitions. [2024-10-11 07:01:20,316 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3615 transitions. Word has length 57 [2024-10-11 07:01:20,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:20,316 INFO L471 AbstractCegarLoop]: Abstraction has 2677 states and 3615 transitions. [2024-10-11 07:01:20,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 15 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3615 transitions. [2024-10-11 07:01:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:20,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:20,321 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:20,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-11 07:01:20,321 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:20,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:20,322 INFO L85 PathProgramCache]: Analyzing trace with hash 945423027, now seen corresponding path program 1 times [2024-10-11 07:01:20,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:20,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275991549] [2024-10-11 07:01:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:20,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:20,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:20,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275991549] [2024-10-11 07:01:20,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275991549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:20,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:20,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 07:01:20,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527878177] [2024-10-11 07:01:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:20,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 07:01:20,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:20,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 07:01:20,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 07:01:20,699 INFO L87 Difference]: Start difference. First operand 2677 states and 3615 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:20,927 INFO L93 Difference]: Finished difference Result 3417 states and 4681 transitions. [2024-10-11 07:01:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 07:01:20,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:20,932 INFO L225 Difference]: With dead ends: 3417 [2024-10-11 07:01:20,932 INFO L226 Difference]: Without dead ends: 2722 [2024-10-11 07:01:20,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:01:20,934 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 179 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:20,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 635 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2024-10-11 07:01:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2615. [2024-10-11 07:01:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 1.349655700076511) internal successors, (3528), 2614 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 3528 transitions. [2024-10-11 07:01:20,967 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 3528 transitions. Word has length 57 [2024-10-11 07:01:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:20,968 INFO L471 AbstractCegarLoop]: Abstraction has 2615 states and 3528 transitions. [2024-10-11 07:01:20,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:20,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 3528 transitions. [2024-10-11 07:01:20,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:20,972 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:20,972 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:20,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-11 07:01:20,973 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:20,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2074842673, now seen corresponding path program 1 times [2024-10-11 07:01:20,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:20,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897978479] [2024-10-11 07:01:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:20,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:21,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:21,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897978479] [2024-10-11 07:01:21,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897978479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:21,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:21,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-11 07:01:21,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190151618] [2024-10-11 07:01:21,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:21,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 07:01:21,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:21,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 07:01:21,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:21,941 INFO L87 Difference]: Start difference. First operand 2615 states and 3528 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 20 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:22,210 INFO L93 Difference]: Finished difference Result 3444 states and 4697 transitions. [2024-10-11 07:01:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 07:01:22,211 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 20 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:22,214 INFO L225 Difference]: With dead ends: 3444 [2024-10-11 07:01:22,214 INFO L226 Difference]: Without dead ends: 2749 [2024-10-11 07:01:22,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:22,216 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 182 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:22,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1432 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:22,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2024-10-11 07:01:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 2598. [2024-10-11 07:01:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 2597 states have (on average 1.3507893723527147) internal successors, (3508), 2597 states have internal predecessors, (3508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:22,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 3508 transitions. [2024-10-11 07:01:22,248 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 3508 transitions. Word has length 57 [2024-10-11 07:01:22,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:22,248 INFO L471 AbstractCegarLoop]: Abstraction has 2598 states and 3508 transitions. [2024-10-11 07:01:22,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 20 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 3508 transitions. [2024-10-11 07:01:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 07:01:22,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:22,252 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:22,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-11 07:01:22,253 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:22,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1880770713, now seen corresponding path program 1 times [2024-10-11 07:01:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750370411] [2024-10-11 07:01:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:22,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:23,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:23,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750370411] [2024-10-11 07:01:23,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750370411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:23,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:23,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-11 07:01:23,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274554781] [2024-10-11 07:01:23,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:23,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 07:01:23,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:23,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 07:01:23,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:01:23,169 INFO L87 Difference]: Start difference. First operand 2598 states and 3508 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:23,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:23,623 INFO L93 Difference]: Finished difference Result 4187 states and 5753 transitions. [2024-10-11 07:01:23,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 07:01:23,623 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-11 07:01:23,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:23,629 INFO L225 Difference]: With dead ends: 4187 [2024-10-11 07:01:23,629 INFO L226 Difference]: Without dead ends: 3492 [2024-10-11 07:01:23,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2024-10-11 07:01:23,632 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 471 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:23,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1772 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:23,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2024-10-11 07:01:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 2693. [2024-10-11 07:01:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2692 states have (on average 1.3525260029717683) internal successors, (3641), 2692 states have internal predecessors, (3641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3641 transitions. [2024-10-11 07:01:23,686 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3641 transitions. Word has length 57 [2024-10-11 07:01:23,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:23,686 INFO L471 AbstractCegarLoop]: Abstraction has 2693 states and 3641 transitions. [2024-10-11 07:01:23,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3641 transitions. [2024-10-11 07:01:23,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:23,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:23,691 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:23,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-11 07:01:23,691 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:23,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash 823558942, now seen corresponding path program 1 times [2024-10-11 07:01:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135763795] [2024-10-11 07:01:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:24,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:24,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135763795] [2024-10-11 07:01:24,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135763795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:24,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:24,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-11 07:01:24,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16364482] [2024-10-11 07:01:24,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:24,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 07:01:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:24,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 07:01:24,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:24,540 INFO L87 Difference]: Start difference. First operand 2693 states and 3641 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 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) [2024-10-11 07:01:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:24,749 INFO L93 Difference]: Finished difference Result 3603 states and 4937 transitions. [2024-10-11 07:01:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 07:01:24,749 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 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 [2024-10-11 07:01:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:24,753 INFO L225 Difference]: With dead ends: 3603 [2024-10-11 07:01:24,753 INFO L226 Difference]: Without dead ends: 2850 [2024-10-11 07:01:24,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:24,755 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 176 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:24,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1556 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:24,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2024-10-11 07:01:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2678. [2024-10-11 07:01:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2677 states have (on average 1.3530070974971984) internal successors, (3622), 2677 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3622 transitions. [2024-10-11 07:01:24,785 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3622 transitions. Word has length 58 [2024-10-11 07:01:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:24,786 INFO L471 AbstractCegarLoop]: Abstraction has 2678 states and 3622 transitions. [2024-10-11 07:01:24,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 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) [2024-10-11 07:01:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3622 transitions. [2024-10-11 07:01:24,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:24,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:24,790 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:24,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-11 07:01:24,790 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:24,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:24,791 INFO L85 PathProgramCache]: Analyzing trace with hash 884410996, now seen corresponding path program 1 times [2024-10-11 07:01:24,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:24,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038689806] [2024-10-11 07:01:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:24,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:25,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:25,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:25,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038689806] [2024-10-11 07:01:25,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038689806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:25,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:25,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 07:01:25,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662190480] [2024-10-11 07:01:25,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:25,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 07:01:25,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:25,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 07:01:25,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:01:25,562 INFO L87 Difference]: Start difference. First operand 2678 states and 3622 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 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) [2024-10-11 07:01:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:25,692 INFO L93 Difference]: Finished difference Result 3573 states and 4904 transitions. [2024-10-11 07:01:25,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 07:01:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 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 [2024-10-11 07:01:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:25,695 INFO L225 Difference]: With dead ends: 3573 [2024-10-11 07:01:25,695 INFO L226 Difference]: Without dead ends: 2820 [2024-10-11 07:01:25,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-10-11 07:01:25,697 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 268 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:25,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1126 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2024-10-11 07:01:25,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2646. [2024-10-11 07:01:25,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2645 states have (on average 1.3527410207939508) internal successors, (3578), 2645 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3578 transitions. [2024-10-11 07:01:25,729 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3578 transitions. Word has length 58 [2024-10-11 07:01:25,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:25,730 INFO L471 AbstractCegarLoop]: Abstraction has 2646 states and 3578 transitions. [2024-10-11 07:01:25,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 19 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) [2024-10-11 07:01:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3578 transitions. [2024-10-11 07:01:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:25,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:25,736 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:25,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-11 07:01:25,737 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:25,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:25,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2037205289, now seen corresponding path program 1 times [2024-10-11 07:01:25,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:25,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623275828] [2024-10-11 07:01:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:25,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:27,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:27,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623275828] [2024-10-11 07:01:27,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623275828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:27,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:27,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-11 07:01:27,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984875690] [2024-10-11 07:01:27,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:27,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 07:01:27,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 07:01:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2024-10-11 07:01:27,009 INFO L87 Difference]: Start difference. First operand 2646 states and 3578 transitions. Second operand has 25 states, 25 states have (on average 2.32) internal successors, (58), 24 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) [2024-10-11 07:01:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:27,533 INFO L93 Difference]: Finished difference Result 4129 states and 5634 transitions. [2024-10-11 07:01:27,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-11 07:01:27,533 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 24 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 [2024-10-11 07:01:27,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:27,536 INFO L225 Difference]: With dead ends: 4129 [2024-10-11 07:01:27,537 INFO L226 Difference]: Without dead ends: 3376 [2024-10-11 07:01:27,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2024-10-11 07:01:27,539 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 176 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:27,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1372 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 07:01:27,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3376 states. [2024-10-11 07:01:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3376 to 2794. [2024-10-11 07:01:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 1.351951306838525) internal successors, (3776), 2793 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:27,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3776 transitions. [2024-10-11 07:01:27,573 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3776 transitions. Word has length 58 [2024-10-11 07:01:27,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:27,573 INFO L471 AbstractCegarLoop]: Abstraction has 2794 states and 3776 transitions. [2024-10-11 07:01:27,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 24 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) [2024-10-11 07:01:27,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3776 transitions. [2024-10-11 07:01:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:27,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:27,578 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:27,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-11 07:01:27,578 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:27,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1907005583, now seen corresponding path program 1 times [2024-10-11 07:01:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:27,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920275914] [2024-10-11 07:01:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:27,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:27,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920275914] [2024-10-11 07:01:27,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920275914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:27,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:27,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:01:27,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419257116] [2024-10-11 07:01:27,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:27,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:01:27,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:27,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:01:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:01:27,715 INFO L87 Difference]: Start difference. First operand 2794 states and 3776 transitions. Second operand has 5 states, 5 states have (on average 11.6) 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) [2024-10-11 07:01:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:27,750 INFO L93 Difference]: Finished difference Result 4056 states and 5490 transitions. [2024-10-11 07:01:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:01:27,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) 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 [2024-10-11 07:01:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:27,754 INFO L225 Difference]: With dead ends: 4056 [2024-10-11 07:01:27,754 INFO L226 Difference]: Without dead ends: 2687 [2024-10-11 07:01:27,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:01:27,755 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 35 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:27,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 456 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:01:27,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2024-10-11 07:01:27,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2665. [2024-10-11 07:01:27,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 1.3340840840840842) internal successors, (3554), 2664 states have internal predecessors, (3554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:27,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3554 transitions. [2024-10-11 07:01:27,785 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3554 transitions. Word has length 58 [2024-10-11 07:01:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:27,785 INFO L471 AbstractCegarLoop]: Abstraction has 2665 states and 3554 transitions. [2024-10-11 07:01:27,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) 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) [2024-10-11 07:01:27,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3554 transitions. [2024-10-11 07:01:27,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:27,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:27,789 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:27,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-11 07:01:27,790 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:27,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:27,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1608052211, now seen corresponding path program 1 times [2024-10-11 07:01:27,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:27,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815443006] [2024-10-11 07:01:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:28,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:28,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815443006] [2024-10-11 07:01:28,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815443006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:28,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:28,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 07:01:28,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230855352] [2024-10-11 07:01:28,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:28,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 07:01:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:28,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 07:01:28,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 07:01:28,014 INFO L87 Difference]: Start difference. First operand 2665 states and 3554 transitions. Second operand has 5 states, 5 states have (on average 11.6) 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) [2024-10-11 07:01:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:28,050 INFO L93 Difference]: Finished difference Result 3546 states and 4797 transitions. [2024-10-11 07:01:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 07:01:28,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) 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 [2024-10-11 07:01:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:28,053 INFO L225 Difference]: With dead ends: 3546 [2024-10-11 07:01:28,053 INFO L226 Difference]: Without dead ends: 2202 [2024-10-11 07:01:28,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:01:28,056 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 31 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:28,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 468 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:01:28,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2024-10-11 07:01:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2194. [2024-10-11 07:01:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2193 states have (on average 1.3237574099407206) internal successors, (2903), 2193 states have internal predecessors, (2903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:28,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2903 transitions. [2024-10-11 07:01:28,081 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2903 transitions. Word has length 58 [2024-10-11 07:01:28,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:28,082 INFO L471 AbstractCegarLoop]: Abstraction has 2194 states and 2903 transitions. [2024-10-11 07:01:28,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) 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) [2024-10-11 07:01:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2903 transitions. [2024-10-11 07:01:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:28,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:28,085 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:28,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-11 07:01:28,086 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:28,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:28,086 INFO L85 PathProgramCache]: Analyzing trace with hash -944276663, now seen corresponding path program 1 times [2024-10-11 07:01:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:28,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55095907] [2024-10-11 07:01:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:28,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:28,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:28,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55095907] [2024-10-11 07:01:28,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55095907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:28,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:28,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-11 07:01:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325585225] [2024-10-11 07:01:28,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:28,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 07:01:28,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 07:01:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:01:28,899 INFO L87 Difference]: Start difference. First operand 2194 states and 2903 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 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) [2024-10-11 07:01:29,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:29,132 INFO L93 Difference]: Finished difference Result 3069 states and 4167 transitions. [2024-10-11 07:01:29,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 07:01:29,133 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 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 [2024-10-11 07:01:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:29,135 INFO L225 Difference]: With dead ends: 3069 [2024-10-11 07:01:29,135 INFO L226 Difference]: Without dead ends: 2316 [2024-10-11 07:01:29,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:01:29,137 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 179 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:29,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1566 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 07:01:29,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-10-11 07:01:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2201. [2024-10-11 07:01:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2200 states have (on average 1.3236363636363637) internal successors, (2912), 2200 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2912 transitions. [2024-10-11 07:01:29,157 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2912 transitions. Word has length 58 [2024-10-11 07:01:29,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:29,157 INFO L471 AbstractCegarLoop]: Abstraction has 2201 states and 2912 transitions. [2024-10-11 07:01:29,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 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) [2024-10-11 07:01:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2912 transitions. [2024-10-11 07:01:29,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:29,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:29,161 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:29,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-11 07:01:29,161 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:29,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1637836467, now seen corresponding path program 1 times [2024-10-11 07:01:29,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:29,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094698253] [2024-10-11 07:01:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:29,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:29,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094698253] [2024-10-11 07:01:29,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094698253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:29,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:29,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 07:01:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953824722] [2024-10-11 07:01:29,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:29,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 07:01:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 07:01:29,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:01:29,597 INFO L87 Difference]: Start difference. First operand 2201 states and 2912 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 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) [2024-10-11 07:01:29,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:29,667 INFO L93 Difference]: Finished difference Result 3112 states and 4225 transitions. [2024-10-11 07:01:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 07:01:29,667 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 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 [2024-10-11 07:01:29,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:29,670 INFO L225 Difference]: With dead ends: 3112 [2024-10-11 07:01:29,670 INFO L226 Difference]: Without dead ends: 2302 [2024-10-11 07:01:29,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:01:29,672 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 34 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:29,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 870 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:29,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-10-11 07:01:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2092. [2024-10-11 07:01:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 2091 states have (on average 1.3323768531802964) internal successors, (2786), 2091 states have internal predecessors, (2786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2786 transitions. [2024-10-11 07:01:29,694 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2786 transitions. Word has length 58 [2024-10-11 07:01:29,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:29,694 INFO L471 AbstractCegarLoop]: Abstraction has 2092 states and 2786 transitions. [2024-10-11 07:01:29,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 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) [2024-10-11 07:01:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2786 transitions. [2024-10-11 07:01:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:29,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:29,697 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:29,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-11 07:01:29,697 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:29,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:29,698 INFO L85 PathProgramCache]: Analyzing trace with hash -862647323, now seen corresponding path program 1 times [2024-10-11 07:01:29,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:29,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859411295] [2024-10-11 07:01:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:29,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:30,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:30,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859411295] [2024-10-11 07:01:30,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859411295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:30,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:30,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 07:01:30,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490049434] [2024-10-11 07:01:30,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:30,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 07:01:30,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:30,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 07:01:30,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:01:30,289 INFO L87 Difference]: Start difference. First operand 2092 states and 2786 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 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) [2024-10-11 07:01:30,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:30,383 INFO L93 Difference]: Finished difference Result 3255 states and 4345 transitions. [2024-10-11 07:01:30,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:01:30,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 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 [2024-10-11 07:01:30,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:30,386 INFO L225 Difference]: With dead ends: 3255 [2024-10-11 07:01:30,386 INFO L226 Difference]: Without dead ends: 2392 [2024-10-11 07:01:30,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:01:30,387 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 45 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:30,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 837 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:30,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2024-10-11 07:01:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2106. [2024-10-11 07:01:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2105 states have (on average 1.3268408551068884) internal successors, (2793), 2105 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2793 transitions. [2024-10-11 07:01:30,407 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2793 transitions. Word has length 58 [2024-10-11 07:01:30,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:30,407 INFO L471 AbstractCegarLoop]: Abstraction has 2106 states and 2793 transitions. [2024-10-11 07:01:30,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 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) [2024-10-11 07:01:30,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2793 transitions. [2024-10-11 07:01:30,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:30,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:30,410 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:30,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-11 07:01:30,410 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:30,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1572717228, now seen corresponding path program 1 times [2024-10-11 07:01:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:30,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122246097] [2024-10-11 07:01:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:30,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:30,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:30,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122246097] [2024-10-11 07:01:30,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122246097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:30,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:30,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 07:01:30,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666874551] [2024-10-11 07:01:30,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:30,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 07:01:30,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 07:01:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:01:30,773 INFO L87 Difference]: Start difference. First operand 2106 states and 2793 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 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) [2024-10-11 07:01:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:30,839 INFO L93 Difference]: Finished difference Result 3426 states and 4619 transitions. [2024-10-11 07:01:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 07:01:30,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 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 [2024-10-11 07:01:30,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:30,841 INFO L225 Difference]: With dead ends: 3426 [2024-10-11 07:01:30,841 INFO L226 Difference]: Without dead ends: 2602 [2024-10-11 07:01:30,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:01:30,842 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 50 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:30,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1013 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:30,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-10-11 07:01:30,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2429. [2024-10-11 07:01:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2428 states have (on average 1.3134266886326194) internal successors, (3189), 2428 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3189 transitions. [2024-10-11 07:01:30,865 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3189 transitions. Word has length 58 [2024-10-11 07:01:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:30,865 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3189 transitions. [2024-10-11 07:01:30,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 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) [2024-10-11 07:01:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3189 transitions. [2024-10-11 07:01:30,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:30,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:30,869 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:30,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-11 07:01:30,869 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:30,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:30,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1401964734, now seen corresponding path program 1 times [2024-10-11 07:01:30,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:30,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390613888] [2024-10-11 07:01:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:30,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:31,641 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:31,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:31,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390613888] [2024-10-11 07:01:31,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390613888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:31,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:31,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-11 07:01:31,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295555977] [2024-10-11 07:01:31,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:31,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 07:01:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 07:01:31,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:31,643 INFO L87 Difference]: Start difference. First operand 2429 states and 3189 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 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) [2024-10-11 07:01:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:31,788 INFO L93 Difference]: Finished difference Result 3357 states and 4510 transitions. [2024-10-11 07:01:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 07:01:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 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 [2024-10-11 07:01:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:31,791 INFO L225 Difference]: With dead ends: 3357 [2024-10-11 07:01:31,791 INFO L226 Difference]: Without dead ends: 2604 [2024-10-11 07:01:31,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-10-11 07:01:31,793 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 176 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:31,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1295 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:31,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-10-11 07:01:31,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2432. [2024-10-11 07:01:31,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2431 states have (on average 1.314273961332785) internal successors, (3195), 2431 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3195 transitions. [2024-10-11 07:01:31,812 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3195 transitions. Word has length 58 [2024-10-11 07:01:31,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:31,812 INFO L471 AbstractCegarLoop]: Abstraction has 2432 states and 3195 transitions. [2024-10-11 07:01:31,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 20 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) [2024-10-11 07:01:31,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3195 transitions. [2024-10-11 07:01:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:31,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:31,816 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:31,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-11 07:01:31,817 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:31,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:31,817 INFO L85 PathProgramCache]: Analyzing trace with hash -475758541, now seen corresponding path program 1 times [2024-10-11 07:01:31,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:31,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085618180] [2024-10-11 07:01:31,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:31,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:32,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:32,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085618180] [2024-10-11 07:01:32,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085618180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:32,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:32,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 07:01:32,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794325093] [2024-10-11 07:01:32,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:32,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 07:01:32,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 07:01:32,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:01:32,297 INFO L87 Difference]: Start difference. First operand 2432 states and 3195 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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) [2024-10-11 07:01:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:32,404 INFO L93 Difference]: Finished difference Result 3281 states and 4413 transitions. [2024-10-11 07:01:32,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 07:01:32,404 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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 [2024-10-11 07:01:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:32,406 INFO L225 Difference]: With dead ends: 3281 [2024-10-11 07:01:32,406 INFO L226 Difference]: Without dead ends: 2500 [2024-10-11 07:01:32,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:01:32,407 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 51 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:32,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1176 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:32,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2024-10-11 07:01:32,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 2482. [2024-10-11 07:01:32,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2482 states, 2481 states have (on average 1.3135832325675132) internal successors, (3259), 2481 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 3259 transitions. [2024-10-11 07:01:32,424 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 3259 transitions. Word has length 58 [2024-10-11 07:01:32,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:32,424 INFO L471 AbstractCegarLoop]: Abstraction has 2482 states and 3259 transitions. [2024-10-11 07:01:32,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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) [2024-10-11 07:01:32,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 3259 transitions. [2024-10-11 07:01:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:32,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:32,427 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:32,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-11 07:01:32,427 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:32,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash -421240962, now seen corresponding path program 1 times [2024-10-11 07:01:32,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:32,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313453640] [2024-10-11 07:01:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:32,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:32,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:32,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313453640] [2024-10-11 07:01:32,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313453640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:32,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:32,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 07:01:32,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132628312] [2024-10-11 07:01:32,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:32,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 07:01:32,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:32,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 07:01:32,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:01:32,896 INFO L87 Difference]: Start difference. First operand 2482 states and 3259 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 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) [2024-10-11 07:01:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:32,980 INFO L93 Difference]: Finished difference Result 3261 states and 4381 transitions. [2024-10-11 07:01:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 07:01:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 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 [2024-10-11 07:01:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:32,982 INFO L225 Difference]: With dead ends: 3261 [2024-10-11 07:01:32,982 INFO L226 Difference]: Without dead ends: 2488 [2024-10-11 07:01:32,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-11 07:01:32,984 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 75 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:32,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 954 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:32,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2024-10-11 07:01:32,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2024-10-11 07:01:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.312022517088862) internal successors, (3263), 2487 states have internal predecessors, (3263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3263 transitions. [2024-10-11 07:01:33,004 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3263 transitions. Word has length 58 [2024-10-11 07:01:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:33,004 INFO L471 AbstractCegarLoop]: Abstraction has 2488 states and 3263 transitions. [2024-10-11 07:01:33,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 12 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) [2024-10-11 07:01:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3263 transitions. [2024-10-11 07:01:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:33,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:33,006 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:33,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-11 07:01:33,007 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:33,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:33,007 INFO L85 PathProgramCache]: Analyzing trace with hash -540877780, now seen corresponding path program 1 times [2024-10-11 07:01:33,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905522724] [2024-10-11 07:01:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:33,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:33,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:33,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:33,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905522724] [2024-10-11 07:01:33,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905522724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:33,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:33,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 07:01:33,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931820199] [2024-10-11 07:01:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:33,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 07:01:33,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:33,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 07:01:33,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:01:33,559 INFO L87 Difference]: Start difference. First operand 2488 states and 3263 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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) [2024-10-11 07:01:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:33,725 INFO L93 Difference]: Finished difference Result 3377 states and 4532 transitions. [2024-10-11 07:01:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 07:01:33,726 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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 [2024-10-11 07:01:33,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:33,728 INFO L225 Difference]: With dead ends: 3377 [2024-10-11 07:01:33,728 INFO L226 Difference]: Without dead ends: 2612 [2024-10-11 07:01:33,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-11 07:01:33,730 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 78 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:33,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1220 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:33,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2024-10-11 07:01:33,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2549. [2024-10-11 07:01:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2548 states have (on average 1.3096546310832025) internal successors, (3337), 2548 states have internal predecessors, (3337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3337 transitions. [2024-10-11 07:01:33,753 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3337 transitions. Word has length 58 [2024-10-11 07:01:33,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:33,753 INFO L471 AbstractCegarLoop]: Abstraction has 2549 states and 3337 transitions. [2024-10-11 07:01:33,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 13 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) [2024-10-11 07:01:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3337 transitions. [2024-10-11 07:01:33,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:33,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:33,756 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:33,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-11 07:01:33,756 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:33,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:33,756 INFO L85 PathProgramCache]: Analyzing trace with hash 840674657, now seen corresponding path program 1 times [2024-10-11 07:01:33,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:33,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187739307] [2024-10-11 07:01:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:33,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:34,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:34,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187739307] [2024-10-11 07:01:34,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187739307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:34,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:34,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 07:01:34,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517364491] [2024-10-11 07:01:34,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:34,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 07:01:34,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:34,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 07:01:34,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-11 07:01:34,089 INFO L87 Difference]: Start difference. First operand 2549 states and 3337 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 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) [2024-10-11 07:01:34,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:34,245 INFO L93 Difference]: Finished difference Result 3512 states and 4688 transitions. [2024-10-11 07:01:34,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 07:01:34,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 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 [2024-10-11 07:01:34,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:34,248 INFO L225 Difference]: With dead ends: 3512 [2024-10-11 07:01:34,248 INFO L226 Difference]: Without dead ends: 2759 [2024-10-11 07:01:34,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-11 07:01:34,250 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 162 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:34,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 702 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:34,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2024-10-11 07:01:34,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2539. [2024-10-11 07:01:34,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 1.3077226162332545) internal successors, (3319), 2538 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 3319 transitions. [2024-10-11 07:01:34,270 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 3319 transitions. Word has length 58 [2024-10-11 07:01:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:34,270 INFO L471 AbstractCegarLoop]: Abstraction has 2539 states and 3319 transitions. [2024-10-11 07:01:34,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 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) [2024-10-11 07:01:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 3319 transitions. [2024-10-11 07:01:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:34,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:34,272 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:34,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-10-11 07:01:34,272 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:34,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1974287994, now seen corresponding path program 1 times [2024-10-11 07:01:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912158647] [2024-10-11 07:01:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:34,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:35,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912158647] [2024-10-11 07:01:35,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912158647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:35,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:35,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 07:01:35,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546406082] [2024-10-11 07:01:35,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:35,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 07:01:35,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 07:01:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-10-11 07:01:35,190 INFO L87 Difference]: Start difference. First operand 2539 states and 3319 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 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) [2024-10-11 07:01:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:35,615 INFO L93 Difference]: Finished difference Result 3533 states and 4728 transitions. [2024-10-11 07:01:35,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-11 07:01:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 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 [2024-10-11 07:01:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:35,618 INFO L225 Difference]: With dead ends: 3533 [2024-10-11 07:01:35,618 INFO L226 Difference]: Without dead ends: 2734 [2024-10-11 07:01:35,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:01:35,619 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 344 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:35,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1753 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2024-10-11 07:01:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2441. [2024-10-11 07:01:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2440 states have (on average 1.3065573770491803) internal successors, (3188), 2440 states have internal predecessors, (3188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:35,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3188 transitions. [2024-10-11 07:01:35,639 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3188 transitions. Word has length 58 [2024-10-11 07:01:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:35,640 INFO L471 AbstractCegarLoop]: Abstraction has 2441 states and 3188 transitions. [2024-10-11 07:01:35,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 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) [2024-10-11 07:01:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3188 transitions. [2024-10-11 07:01:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:35,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:35,642 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:35,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-10-11 07:01:35,643 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:35,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:35,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1681129946, now seen corresponding path program 1 times [2024-10-11 07:01:35,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:35,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338057368] [2024-10-11 07:01:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:36,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:36,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338057368] [2024-10-11 07:01:36,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338057368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:36,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:36,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-11 07:01:36,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057745473] [2024-10-11 07:01:36,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:36,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 07:01:36,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 07:01:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:01:36,241 INFO L87 Difference]: Start difference. First operand 2441 states and 3188 transitions. Second operand has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 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) [2024-10-11 07:01:36,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:36,640 INFO L93 Difference]: Finished difference Result 3388 states and 4508 transitions. [2024-10-11 07:01:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 07:01:36,641 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 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 [2024-10-11 07:01:36,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:36,643 INFO L225 Difference]: With dead ends: 3388 [2024-10-11 07:01:36,643 INFO L226 Difference]: Without dead ends: 2645 [2024-10-11 07:01:36,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-11 07:01:36,644 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 109 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:36,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1306 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 07:01:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2024-10-11 07:01:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2574. [2024-10-11 07:01:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2573 states have (on average 1.3031480761756704) internal successors, (3353), 2573 states have internal predecessors, (3353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3353 transitions. [2024-10-11 07:01:36,664 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3353 transitions. Word has length 58 [2024-10-11 07:01:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:36,664 INFO L471 AbstractCegarLoop]: Abstraction has 2574 states and 3353 transitions. [2024-10-11 07:01:36,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 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) [2024-10-11 07:01:36,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3353 transitions. [2024-10-11 07:01:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:36,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:36,666 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:36,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-10-11 07:01:36,666 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:36,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1818077126, now seen corresponding path program 1 times [2024-10-11 07:01:36,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:36,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639634905] [2024-10-11 07:01:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:36,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:37,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:37,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639634905] [2024-10-11 07:01:37,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639634905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:37,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:37,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 07:01:37,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906341370] [2024-10-11 07:01:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:37,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 07:01:37,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:37,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 07:01:37,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:01:37,316 INFO L87 Difference]: Start difference. First operand 2574 states and 3353 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 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) [2024-10-11 07:01:37,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:37,744 INFO L93 Difference]: Finished difference Result 3973 states and 5306 transitions. [2024-10-11 07:01:37,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 07:01:37,744 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 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 [2024-10-11 07:01:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:37,747 INFO L225 Difference]: With dead ends: 3973 [2024-10-11 07:01:37,747 INFO L226 Difference]: Without dead ends: 3232 [2024-10-11 07:01:37,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2024-10-11 07:01:37,748 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 171 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:37,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1476 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2024-10-11 07:01:37,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2800. [2024-10-11 07:01:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 2799 states have (on average 1.307609860664523) internal successors, (3660), 2799 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 3660 transitions. [2024-10-11 07:01:37,767 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 3660 transitions. Word has length 58 [2024-10-11 07:01:37,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:37,767 INFO L471 AbstractCegarLoop]: Abstraction has 2800 states and 3660 transitions. [2024-10-11 07:01:37,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 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) [2024-10-11 07:01:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 3660 transitions. [2024-10-11 07:01:37,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:37,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:37,770 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:37,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-10-11 07:01:37,770 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:37,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:37,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1616010707, now seen corresponding path program 1 times [2024-10-11 07:01:37,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:37,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397684286] [2024-10-11 07:01:37,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:37,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:37,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:37,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397684286] [2024-10-11 07:01:37,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397684286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:37,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:37,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 07:01:37,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290723579] [2024-10-11 07:01:37,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:37,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 07:01:37,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:37,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 07:01:37,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:01:37,885 INFO L87 Difference]: Start difference. First operand 2800 states and 3660 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 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) [2024-10-11 07:01:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:38,003 INFO L93 Difference]: Finished difference Result 3656 states and 4877 transitions. [2024-10-11 07:01:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 07:01:38,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 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 [2024-10-11 07:01:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:38,006 INFO L225 Difference]: With dead ends: 3656 [2024-10-11 07:01:38,006 INFO L226 Difference]: Without dead ends: 2479 [2024-10-11 07:01:38,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 07:01:38,007 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 126 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:38,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 362 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 07:01:38,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2024-10-11 07:01:38,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2470. [2024-10-11 07:01:38,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.3098420413122722) internal successors, (3234), 2469 states have internal predecessors, (3234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:38,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3234 transitions. [2024-10-11 07:01:38,022 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3234 transitions. Word has length 58 [2024-10-11 07:01:38,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:38,022 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3234 transitions. [2024-10-11 07:01:38,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 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) [2024-10-11 07:01:38,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3234 transitions. [2024-10-11 07:01:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:38,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:38,024 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:38,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-10-11 07:01:38,024 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:38,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 964760518, now seen corresponding path program 1 times [2024-10-11 07:01:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:38,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066741438] [2024-10-11 07:01:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:38,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:38,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:38,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066741438] [2024-10-11 07:01:38,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066741438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:38,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:38,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-11 07:01:38,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533388848] [2024-10-11 07:01:38,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:38,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 07:01:38,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 07:01:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2024-10-11 07:01:38,663 INFO L87 Difference]: Start difference. First operand 2470 states and 3234 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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) [2024-10-11 07:01:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:39,019 INFO L93 Difference]: Finished difference Result 4260 states and 5721 transitions. [2024-10-11 07:01:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 07:01:39,020 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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 [2024-10-11 07:01:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:39,024 INFO L225 Difference]: With dead ends: 4260 [2024-10-11 07:01:39,024 INFO L226 Difference]: Without dead ends: 3481 [2024-10-11 07:01:39,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-10-11 07:01:39,027 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 352 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:39,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1400 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:39,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2024-10-11 07:01:39,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 2531. [2024-10-11 07:01:39,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2530 states have (on average 1.3134387351778656) internal successors, (3323), 2530 states have internal predecessors, (3323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:39,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3323 transitions. [2024-10-11 07:01:39,053 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3323 transitions. Word has length 58 [2024-10-11 07:01:39,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:39,053 INFO L471 AbstractCegarLoop]: Abstraction has 2531 states and 3323 transitions. [2024-10-11 07:01:39,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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) [2024-10-11 07:01:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3323 transitions. [2024-10-11 07:01:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:39,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:39,056 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:39,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-10-11 07:01:39,056 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:39,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:39,057 INFO L85 PathProgramCache]: Analyzing trace with hash -333207368, now seen corresponding path program 1 times [2024-10-11 07:01:39,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:39,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365071999] [2024-10-11 07:01:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:39,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:40,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:40,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:40,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365071999] [2024-10-11 07:01:40,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365071999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:40,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:40,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-11 07:01:40,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727808940] [2024-10-11 07:01:40,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:40,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 07:01:40,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 07:01:40,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:01:40,018 INFO L87 Difference]: Start difference. First operand 2531 states and 3323 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 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) [2024-10-11 07:01:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:40,338 INFO L93 Difference]: Finished difference Result 3558 states and 4754 transitions. [2024-10-11 07:01:40,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 07:01:40,338 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 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 [2024-10-11 07:01:40,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:40,341 INFO L225 Difference]: With dead ends: 3558 [2024-10-11 07:01:40,341 INFO L226 Difference]: Without dead ends: 2764 [2024-10-11 07:01:40,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2024-10-11 07:01:40,343 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 146 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:40,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1620 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:40,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-10-11 07:01:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2566. [2024-10-11 07:01:40,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2565 states have (on average 1.3138401559454191) internal successors, (3370), 2565 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3370 transitions. [2024-10-11 07:01:40,363 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3370 transitions. Word has length 58 [2024-10-11 07:01:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:40,363 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3370 transitions. [2024-10-11 07:01:40,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 21 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) [2024-10-11 07:01:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3370 transitions. [2024-10-11 07:01:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:40,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:40,365 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:40,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-10-11 07:01:40,366 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:40,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:40,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1311510369, now seen corresponding path program 1 times [2024-10-11 07:01:40,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:40,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526649416] [2024-10-11 07:01:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:01:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 07:01:40,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:01:40,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526649416] [2024-10-11 07:01:40,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526649416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:01:40,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:01:40,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 07:01:40,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402664852] [2024-10-11 07:01:40,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:01:40,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 07:01:40,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:01:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 07:01:40,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-11 07:01:40,833 INFO L87 Difference]: Start difference. First operand 2566 states and 3370 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 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) [2024-10-11 07:01:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:01:41,180 INFO L93 Difference]: Finished difference Result 4068 states and 5451 transitions. [2024-10-11 07:01:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 07:01:41,180 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 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 [2024-10-11 07:01:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:01:41,183 INFO L225 Difference]: With dead ends: 4068 [2024-10-11 07:01:41,183 INFO L226 Difference]: Without dead ends: 3274 [2024-10-11 07:01:41,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-11 07:01:41,184 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 297 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 07:01:41,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1490 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 07:01:41,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2024-10-11 07:01:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 2764. [2024-10-11 07:01:41,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 1.3137893593919652) internal successors, (3630), 2763 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 07:01:41,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3630 transitions. [2024-10-11 07:01:41,212 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3630 transitions. Word has length 58 [2024-10-11 07:01:41,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:01:41,212 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 3630 transitions. [2024-10-11 07:01:41,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 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) [2024-10-11 07:01:41,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3630 transitions. [2024-10-11 07:01:41,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 07:01:41,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:01:41,215 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 07:01:41,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-10-11 07:01:41,215 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:01:41,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:01:41,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2103231658, now seen corresponding path program 1 times [2024-10-11 07:01:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:01:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45623327] [2024-10-11 07:01:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:01:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:01:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat