./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.client_server.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9ed0841be1ae1dee8e84f0ca737866704342db1241d2484eefbe911736856543 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 06:06:36,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 06:06:36,435 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 06:06:36,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 06:06:36,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 06:06:36,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 06:06:36,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 06:06:36,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 06:06:36,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 06:06:36,486 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 06:06:36,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 06:06:36,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 06:06:36,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 06:06:36,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 06:06:36,494 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 06:06:36,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 06:06:36,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 06:06:36,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 06:06:36,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 06:06:36,496 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 06:06:36,496 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 06:06:36,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 06:06:36,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 06:06:36,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 06:06:36,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 06:06:36,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 06:06:36,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 06:06:36,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 06:06:36,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 06:06:36,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:06:36,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 06:06:36,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 06:06:36,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 06:06:36,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 06:06:36,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 06:06:36,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 06:06:36,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 06:06:36,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 06:06:36,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 06:06:36,505 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ed0841be1ae1dee8e84f0ca737866704342db1241d2484eefbe911736856543 [2024-10-14 06:06:36,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 06:06:36,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 06:06:36,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 06:06:36,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 06:06:36,886 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 06:06:36,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2024-10-14 06:06:38,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 06:06:39,435 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 06:06:39,440 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.client_server.c [2024-10-14 06:06:39,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9acbc16/652e29ec25164024ba0bdc198944ab3a/FLAG986fe2c72 [2024-10-14 06:06:39,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9acbc16/652e29ec25164024ba0bdc198944ab3a [2024-10-14 06:06:39,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 06:06:39,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 06:06:39,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 06:06:39,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 06:06:39,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 06:06:39,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:06:39" (1/1) ... [2024-10-14 06:06:39,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e8677a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:39, skipping insertion in model container [2024-10-14 06:06:39,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:06:39" (1/1) ... [2024-10-14 06:06:39,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 06:06:39,913 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.client_server.c[1253,1266] [2024-10-14 06:06:40,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:06:40,130 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 06:06:40,143 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.client_server.c[1253,1266] [2024-10-14 06:06:40,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:06:40,368 INFO L204 MainTranslator]: Completed translation [2024-10-14 06:06:40,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40 WrapperNode [2024-10-14 06:06:40,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 06:06:40,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 06:06:40,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 06:06:40,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 06:06:40,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,544 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 861 [2024-10-14 06:06:40,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 06:06:40,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 06:06:40,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 06:06:40,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 06:06:40,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,664 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 06:06:40,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 06:06:40,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 06:06:40,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 06:06:40,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 06:06:40,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (1/1) ... [2024-10-14 06:06:40,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:06:40,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:06:40,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 06:06:40,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 06:06:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 06:06:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 06:06:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 06:06:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 06:06:41,065 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 06:06:41,068 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 06:06:42,122 INFO L? ?]: Removed 563 outVars from TransFormulas that were not future-live. [2024-10-14 06:06:42,123 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 06:06:42,175 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 06:06:42,177 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 06:06:42,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:06:42 BoogieIcfgContainer [2024-10-14 06:06:42,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 06:06:42,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 06:06:42,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 06:06:42,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 06:06:42,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:06:39" (1/3) ... [2024-10-14 06:06:42,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c96c612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:06:42, skipping insertion in model container [2024-10-14 06:06:42,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:06:40" (2/3) ... [2024-10-14 06:06:42,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c96c612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:06:42, skipping insertion in model container [2024-10-14 06:06:42,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:06:42" (3/3) ... [2024-10-14 06:06:42,190 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.client_server.c [2024-10-14 06:06:42,216 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 06:06:42,216 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 06:06:42,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 06:06:42,328 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;@4cbac64a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 06:06:42,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 06:06:42,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 205 states have (on average 1.502439024390244) internal successors, (308), 206 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 06:06:42,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:42,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:42,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:42,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash -86165545, now seen corresponding path program 1 times [2024-10-14 06:06:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:42,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299367227] [2024-10-14 06:06:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:42,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:43,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:43,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:43,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299367227] [2024-10-14 06:06:43,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299367227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:43,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:43,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:06:43,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394578773] [2024-10-14 06:06:43,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:43,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:06:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:06:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:06:43,492 INFO L87 Difference]: Start difference. First operand has 207 states, 205 states have (on average 1.502439024390244) internal successors, (308), 206 states have internal predecessors, (308), 0 states have call successors, (0), 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 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:43,596 INFO L93 Difference]: Finished difference Result 394 states and 588 transitions. [2024-10-14 06:06:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:43,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-10-14 06:06:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:43,614 INFO L225 Difference]: With dead ends: 394 [2024-10-14 06:06:43,615 INFO L226 Difference]: Without dead ends: 208 [2024-10-14 06:06:43,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:06:43,624 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:43,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 904 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:06:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-14 06:06:43,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-10-14 06:06:43,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.4879227053140096) internal successors, (308), 207 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:43,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 308 transitions. [2024-10-14 06:06:43,697 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 308 transitions. Word has length 40 [2024-10-14 06:06:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:43,698 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 308 transitions. [2024-10-14 06:06:43,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 308 transitions. [2024-10-14 06:06:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 06:06:43,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:43,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:43,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 06:06:43,703 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:43,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:43,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1625530788, now seen corresponding path program 1 times [2024-10-14 06:06:43,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:43,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035951958] [2024-10-14 06:06:43,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:43,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:44,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035951958] [2024-10-14 06:06:44,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035951958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:44,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:44,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:06:44,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656589594] [2024-10-14 06:06:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:44,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:06:44,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:44,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:06:44,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:06:44,216 INFO L87 Difference]: Start difference. First operand 208 states and 308 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:44,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:44,254 INFO L93 Difference]: Finished difference Result 397 states and 588 transitions. [2024-10-14 06:06:44,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:44,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-10-14 06:06:44,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:44,257 INFO L225 Difference]: With dead ends: 397 [2024-10-14 06:06:44,257 INFO L226 Difference]: Without dead ends: 210 [2024-10-14 06:06:44,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:06:44,259 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 0 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:44,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 901 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:06:44,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-14 06:06:44,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-10-14 06:06:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.4832535885167464) internal successors, (310), 209 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:44,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 310 transitions. [2024-10-14 06:06:44,273 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 310 transitions. Word has length 41 [2024-10-14 06:06:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:44,274 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 310 transitions. [2024-10-14 06:06:44,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:44,275 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 310 transitions. [2024-10-14 06:06:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 06:06:44,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:44,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:44,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 06:06:44,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:44,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash 2048848464, now seen corresponding path program 1 times [2024-10-14 06:06:44,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:44,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116974651] [2024-10-14 06:06:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:44,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:45,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:45,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116974651] [2024-10-14 06:06:45,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116974651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:45,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:45,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:06:45,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076264136] [2024-10-14 06:06:45,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:45,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:06:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:06:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:45,127 INFO L87 Difference]: Start difference. First operand 210 states and 310 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:45,208 INFO L93 Difference]: Finished difference Result 407 states and 601 transitions. [2024-10-14 06:06:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:06:45,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-10-14 06:06:45,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:45,212 INFO L225 Difference]: With dead ends: 407 [2024-10-14 06:06:45,214 INFO L226 Difference]: Without dead ends: 218 [2024-10-14 06:06:45,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:45,216 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 5 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:45,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1493 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:45,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-14 06:06:45,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2024-10-14 06:06:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.4766355140186915) internal successors, (316), 214 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 316 transitions. [2024-10-14 06:06:45,242 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 316 transitions. Word has length 42 [2024-10-14 06:06:45,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:45,243 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 316 transitions. [2024-10-14 06:06:45,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:45,243 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 316 transitions. [2024-10-14 06:06:45,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 06:06:45,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:45,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:45,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 06:06:45,245 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:45,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 868544739, now seen corresponding path program 1 times [2024-10-14 06:06:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:45,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997644696] [2024-10-14 06:06:45,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:45,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:46,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:46,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997644696] [2024-10-14 06:06:46,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997644696] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:46,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:46,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:06:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036464285] [2024-10-14 06:06:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:46,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:06:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:06:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:46,034 INFO L87 Difference]: Start difference. First operand 215 states and 316 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:46,153 INFO L93 Difference]: Finished difference Result 418 states and 614 transitions. [2024-10-14 06:06:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:06:46,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-14 06:06:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:46,155 INFO L225 Difference]: With dead ends: 418 [2024-10-14 06:06:46,156 INFO L226 Difference]: Without dead ends: 224 [2024-10-14 06:06:46,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:46,159 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 7 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:46,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1764 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-14 06:06:46,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 219. [2024-10-14 06:06:46,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.4724770642201834) internal successors, (321), 218 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 321 transitions. [2024-10-14 06:06:46,181 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 321 transitions. Word has length 43 [2024-10-14 06:06:46,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:46,182 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 321 transitions. [2024-10-14 06:06:46,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:46,182 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 321 transitions. [2024-10-14 06:06:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 06:06:46,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:46,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:46,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 06:06:46,184 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:46,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1434738262, now seen corresponding path program 1 times [2024-10-14 06:06:46,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:46,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178003167] [2024-10-14 06:06:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:46,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:46,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:46,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178003167] [2024-10-14 06:06:46,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178003167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:46,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:46,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:06:46,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827009228] [2024-10-14 06:06:46,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:46,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:46,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:46,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:46,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:46,775 INFO L87 Difference]: Start difference. First operand 219 states and 321 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:46,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:46,918 INFO L93 Difference]: Finished difference Result 421 states and 617 transitions. [2024-10-14 06:06:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:06:46,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-14 06:06:46,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:46,922 INFO L225 Difference]: With dead ends: 421 [2024-10-14 06:06:46,922 INFO L226 Difference]: Without dead ends: 223 [2024-10-14 06:06:46,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:46,924 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 277 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:46,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 855 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-14 06:06:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 222. [2024-10-14 06:06:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.4660633484162895) internal successors, (324), 221 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 324 transitions. [2024-10-14 06:06:46,943 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 324 transitions. Word has length 43 [2024-10-14 06:06:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:46,943 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 324 transitions. [2024-10-14 06:06:46,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 324 transitions. [2024-10-14 06:06:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 06:06:46,945 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:46,945 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:46,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 06:06:46,945 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:46,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:46,946 INFO L85 PathProgramCache]: Analyzing trace with hash 37332173, now seen corresponding path program 1 times [2024-10-14 06:06:46,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:46,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24212754] [2024-10-14 06:06:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:46,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24212754] [2024-10-14 06:06:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24212754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:48,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:48,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:06:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461855429] [2024-10-14 06:06:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:48,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:06:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:06:48,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:06:48,834 INFO L87 Difference]: Start difference. First operand 222 states and 324 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:49,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:49,130 INFO L93 Difference]: Finished difference Result 548 states and 796 transitions. [2024-10-14 06:06:49,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 06:06:49,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-10-14 06:06:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:49,133 INFO L225 Difference]: With dead ends: 548 [2024-10-14 06:06:49,133 INFO L226 Difference]: Without dead ends: 347 [2024-10-14 06:06:49,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:06:49,135 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 460 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:49,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1968 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:06:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-14 06:06:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 226. [2024-10-14 06:06:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4622222222222223) internal successors, (329), 225 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 329 transitions. [2024-10-14 06:06:49,143 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 329 transitions. Word has length 44 [2024-10-14 06:06:49,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:49,143 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 329 transitions. [2024-10-14 06:06:49,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:49,143 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 329 transitions. [2024-10-14 06:06:49,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 06:06:49,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:49,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:49,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 06:06:49,145 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:49,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash -669029722, now seen corresponding path program 1 times [2024-10-14 06:06:49,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:49,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780850734] [2024-10-14 06:06:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:50,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:50,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780850734] [2024-10-14 06:06:50,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780850734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:50,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:50,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:06:50,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934841913] [2024-10-14 06:06:50,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:50,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:06:50,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:06:50,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:06:50,099 INFO L87 Difference]: Start difference. First operand 226 states and 329 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:50,355 INFO L93 Difference]: Finished difference Result 563 states and 817 transitions. [2024-10-14 06:06:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 06:06:50,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-10-14 06:06:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:50,357 INFO L225 Difference]: With dead ends: 563 [2024-10-14 06:06:50,357 INFO L226 Difference]: Without dead ends: 362 [2024-10-14 06:06:50,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-10-14 06:06:50,358 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 682 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:50,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1944 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-14 06:06:50,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 226. [2024-10-14 06:06:50,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4577777777777778) internal successors, (328), 225 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 328 transitions. [2024-10-14 06:06:50,363 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 328 transitions. Word has length 44 [2024-10-14 06:06:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:50,363 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 328 transitions. [2024-10-14 06:06:50,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 328 transitions. [2024-10-14 06:06:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 06:06:50,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:50,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:50,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 06:06:50,365 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:50,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1436347285, now seen corresponding path program 1 times [2024-10-14 06:06:50,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:50,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120283136] [2024-10-14 06:06:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:50,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:50,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:50,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120283136] [2024-10-14 06:06:50,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120283136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:50,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:50,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:06:50,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89226269] [2024-10-14 06:06:50,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:50,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:06:50,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:50,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:06:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:50,773 INFO L87 Difference]: Start difference. First operand 226 states and 328 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:50,828 INFO L93 Difference]: Finished difference Result 436 states and 634 transitions. [2024-10-14 06:06:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:06:50,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-14 06:06:50,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:50,830 INFO L225 Difference]: With dead ends: 436 [2024-10-14 06:06:50,831 INFO L226 Difference]: Without dead ends: 235 [2024-10-14 06:06:50,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:50,832 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 7 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:50,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1474 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:06:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-10-14 06:06:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 230. [2024-10-14 06:06:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.4541484716157205) internal successors, (333), 229 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 333 transitions. [2024-10-14 06:06:50,839 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 333 transitions. Word has length 45 [2024-10-14 06:06:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:50,839 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 333 transitions. [2024-10-14 06:06:50,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:50,839 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 333 transitions. [2024-10-14 06:06:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 06:06:50,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:50,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:50,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 06:06:50,840 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:50,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:50,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1700677678, now seen corresponding path program 1 times [2024-10-14 06:06:50,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:50,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610700634] [2024-10-14 06:06:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:50,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:51,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:51,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610700634] [2024-10-14 06:06:51,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610700634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:51,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:51,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:51,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502551504] [2024-10-14 06:06:51,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:51,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:06:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:51,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:06:51,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:51,465 INFO L87 Difference]: Start difference. First operand 230 states and 333 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:51,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:51,620 INFO L93 Difference]: Finished difference Result 616 states and 893 transitions. [2024-10-14 06:06:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:06:51,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2024-10-14 06:06:51,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:51,625 INFO L225 Difference]: With dead ends: 616 [2024-10-14 06:06:51,625 INFO L226 Difference]: Without dead ends: 411 [2024-10-14 06:06:51,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:06:51,627 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 794 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:51,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1122 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:51,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-14 06:06:51,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 235. [2024-10-14 06:06:51,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 1.4444444444444444) internal successors, (338), 234 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:51,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 338 transitions. [2024-10-14 06:06:51,636 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 338 transitions. Word has length 45 [2024-10-14 06:06:51,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:51,636 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 338 transitions. [2024-10-14 06:06:51,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:51,637 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 338 transitions. [2024-10-14 06:06:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 06:06:51,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:51,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:51,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 06:06:51,637 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:51,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash 694999266, now seen corresponding path program 1 times [2024-10-14 06:06:51,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:51,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552000418] [2024-10-14 06:06:51,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:51,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:52,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:52,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552000418] [2024-10-14 06:06:52,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552000418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:52,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:52,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:06:52,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284771318] [2024-10-14 06:06:52,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:52,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:06:52,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:52,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:06:52,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:52,162 INFO L87 Difference]: Start difference. First operand 235 states and 338 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:52,233 INFO L93 Difference]: Finished difference Result 449 states and 649 transitions. [2024-10-14 06:06:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:06:52,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-14 06:06:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:52,235 INFO L225 Difference]: With dead ends: 449 [2024-10-14 06:06:52,235 INFO L226 Difference]: Without dead ends: 244 [2024-10-14 06:06:52,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:52,236 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 7 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:52,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1474 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:52,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-14 06:06:52,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 239. [2024-10-14 06:06:52,242 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) [2024-10-14 06:06:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 343 transitions. [2024-10-14 06:06:52,243 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 343 transitions. Word has length 46 [2024-10-14 06:06:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:52,244 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 343 transitions. [2024-10-14 06:06:52,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 343 transitions. [2024-10-14 06:06:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 06:06:52,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:52,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:52,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 06:06:52,246 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:52,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:52,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1828612603, now seen corresponding path program 1 times [2024-10-14 06:06:52,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:52,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284672650] [2024-10-14 06:06:52,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:52,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:53,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:53,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284672650] [2024-10-14 06:06:53,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284672650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:53,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:53,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:53,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233453944] [2024-10-14 06:06:53,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:53,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:06:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:53,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:06:53,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:53,175 INFO L87 Difference]: Start difference. First operand 239 states and 343 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:53,323 INFO L93 Difference]: Finished difference Result 554 states and 796 transitions. [2024-10-14 06:06:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:06:53,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-14 06:06:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:53,325 INFO L225 Difference]: With dead ends: 554 [2024-10-14 06:06:53,325 INFO L226 Difference]: Without dead ends: 345 [2024-10-14 06:06:53,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:53,327 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 552 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:53,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1137 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-10-14 06:06:53,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 247. [2024-10-14 06:06:53,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.4308943089430894) internal successors, (352), 246 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 352 transitions. [2024-10-14 06:06:53,333 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 352 transitions. Word has length 46 [2024-10-14 06:06:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:53,333 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 352 transitions. [2024-10-14 06:06:53,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 352 transitions. [2024-10-14 06:06:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 06:06:53,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:53,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:53,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 06:06:53,334 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:53,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:53,335 INFO L85 PathProgramCache]: Analyzing trace with hash -251337577, now seen corresponding path program 1 times [2024-10-14 06:06:53,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:53,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894502544] [2024-10-14 06:06:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:53,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:54,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:54,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894502544] [2024-10-14 06:06:54,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894502544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:54,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:54,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:06:54,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474881552] [2024-10-14 06:06:54,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:54,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:06:54,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:54,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:06:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:06:54,007 INFO L87 Difference]: Start difference. First operand 247 states and 352 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:54,162 INFO L93 Difference]: Finished difference Result 470 states and 675 transitions. [2024-10-14 06:06:54,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:06:54,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-14 06:06:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:54,167 INFO L225 Difference]: With dead ends: 470 [2024-10-14 06:06:54,167 INFO L226 Difference]: Without dead ends: 258 [2024-10-14 06:06:54,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:06:54,168 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 9 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:54,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2050 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-10-14 06:06:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 254. [2024-10-14 06:06:54,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4308300395256917) internal successors, (362), 253 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 362 transitions. [2024-10-14 06:06:54,182 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 362 transitions. Word has length 46 [2024-10-14 06:06:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:54,183 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 362 transitions. [2024-10-14 06:06:54,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 362 transitions. [2024-10-14 06:06:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 06:06:54,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:54,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:54,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 06:06:54,184 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:54,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1574597565, now seen corresponding path program 1 times [2024-10-14 06:06:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92010780] [2024-10-14 06:06:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:54,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:55,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:55,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92010780] [2024-10-14 06:06:55,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92010780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:55,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:55,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:06:55,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168297192] [2024-10-14 06:06:55,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:55,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:06:55,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:55,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:06:55,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:55,184 INFO L87 Difference]: Start difference. First operand 254 states and 362 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:55,274 INFO L93 Difference]: Finished difference Result 482 states and 692 transitions. [2024-10-14 06:06:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:06:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-14 06:06:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:55,276 INFO L225 Difference]: With dead ends: 482 [2024-10-14 06:06:55,276 INFO L226 Difference]: Without dead ends: 263 [2024-10-14 06:06:55,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:55,277 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 7 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:55,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1764 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:55,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-10-14 06:06:55,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 258. [2024-10-14 06:06:55,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 1.4280155642023347) internal successors, (367), 257 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 367 transitions. [2024-10-14 06:06:55,290 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 367 transitions. Word has length 47 [2024-10-14 06:06:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:55,290 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 367 transitions. [2024-10-14 06:06:55,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 367 transitions. [2024-10-14 06:06:55,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 06:06:55,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:55,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:55,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 06:06:55,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:55,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2064711431, now seen corresponding path program 1 times [2024-10-14 06:06:55,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:55,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304410668] [2024-10-14 06:06:55,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:55,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:56,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:56,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:56,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304410668] [2024-10-14 06:06:56,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304410668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:56,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:56,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-14 06:06:56,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123063808] [2024-10-14 06:06:56,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:56,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 06:06:56,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:56,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 06:06:56,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2024-10-14 06:06:56,242 INFO L87 Difference]: Start difference. First operand 258 states and 367 transitions. Second operand has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:56,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:56,649 INFO L93 Difference]: Finished difference Result 520 states and 744 transitions. [2024-10-14 06:06:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 06:06:56,649 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-14 06:06:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:56,651 INFO L225 Difference]: With dead ends: 520 [2024-10-14 06:06:56,651 INFO L226 Difference]: Without dead ends: 297 [2024-10-14 06:06:56,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2024-10-14 06:06:56,652 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 25 mSDsluCounter, 4693 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4971 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:56,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4971 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:06:56,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-14 06:06:56,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 292. [2024-10-14 06:06:56,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.429553264604811) internal successors, (416), 291 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 416 transitions. [2024-10-14 06:06:56,657 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 416 transitions. Word has length 47 [2024-10-14 06:06:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:56,658 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 416 transitions. [2024-10-14 06:06:56,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.473684210526316) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 416 transitions. [2024-10-14 06:06:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 06:06:56,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:56,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:56,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 06:06:56,659 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:56,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:56,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1859490268, now seen corresponding path program 1 times [2024-10-14 06:06:56,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:56,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715839906] [2024-10-14 06:06:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:57,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:57,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715839906] [2024-10-14 06:06:57,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715839906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:57,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:57,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:06:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223550308] [2024-10-14 06:06:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:57,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:06:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:57,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:06:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:06:57,537 INFO L87 Difference]: Start difference. First operand 292 states and 416 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:57,788 INFO L93 Difference]: Finished difference Result 662 states and 946 transitions. [2024-10-14 06:06:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:06:57,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-14 06:06:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:57,790 INFO L225 Difference]: With dead ends: 662 [2024-10-14 06:06:57,790 INFO L226 Difference]: Without dead ends: 405 [2024-10-14 06:06:57,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:06:57,792 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 551 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:57,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1780 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:06:57,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-10-14 06:06:57,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 297. [2024-10-14 06:06:57,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.4256756756756757) internal successors, (422), 296 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 422 transitions. [2024-10-14 06:06:57,799 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 422 transitions. Word has length 47 [2024-10-14 06:06:57,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:57,800 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 422 transitions. [2024-10-14 06:06:57,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 422 transitions. [2024-10-14 06:06:57,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 06:06:57,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:57,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:57,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 06:06:57,801 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:57,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash 949598840, now seen corresponding path program 1 times [2024-10-14 06:06:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:57,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390873908] [2024-10-14 06:06:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:57,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:58,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:58,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390873908] [2024-10-14 06:06:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390873908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:58,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:58,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 06:06:58,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598822921] [2024-10-14 06:06:58,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:58,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 06:06:58,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:58,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 06:06:58,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:06:58,470 INFO L87 Difference]: Start difference. First operand 297 states and 422 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:58,688 INFO L93 Difference]: Finished difference Result 557 states and 797 transitions. [2024-10-14 06:06:58,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 06:06:58,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-14 06:06:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:58,691 INFO L225 Difference]: With dead ends: 557 [2024-10-14 06:06:58,691 INFO L226 Difference]: Without dead ends: 300 [2024-10-14 06:06:58,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:06:58,692 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 14 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:58,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2921 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:06:58,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-14 06:06:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 298. [2024-10-14 06:06:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.4208754208754208) internal successors, (422), 297 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:58,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 422 transitions. [2024-10-14 06:06:58,700 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 422 transitions. Word has length 47 [2024-10-14 06:06:58,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:58,700 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 422 transitions. [2024-10-14 06:06:58,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 12 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 422 transitions. [2024-10-14 06:06:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 06:06:58,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:58,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:58,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 06:06:58,701 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:58,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1351396649, now seen corresponding path program 1 times [2024-10-14 06:06:58,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:58,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460223105] [2024-10-14 06:06:58,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:58,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:06:59,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:59,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460223105] [2024-10-14 06:06:59,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460223105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:59,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:59,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061643367] [2024-10-14 06:06:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:59,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:06:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:06:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:59,341 INFO L87 Difference]: Start difference. First operand 298 states and 422 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:59,493 INFO L93 Difference]: Finished difference Result 693 states and 991 transitions. [2024-10-14 06:06:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:06:59,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-10-14 06:06:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:59,496 INFO L225 Difference]: With dead ends: 693 [2024-10-14 06:06:59,496 INFO L226 Difference]: Without dead ends: 435 [2024-10-14 06:06:59,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:06:59,498 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 648 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:59,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1118 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:59,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-14 06:06:59,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 306. [2024-10-14 06:06:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.4131147540983606) internal successors, (431), 305 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:59,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 431 transitions. [2024-10-14 06:06:59,504 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 431 transitions. Word has length 48 [2024-10-14 06:06:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:59,504 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 431 transitions. [2024-10-14 06:06:59,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:06:59,504 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 431 transitions. [2024-10-14 06:06:59,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 06:06:59,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:59,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:59,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 06:06:59,505 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:59,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash -99108559, now seen corresponding path program 1 times [2024-10-14 06:06:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:59,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662616455] [2024-10-14 06:06:59,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:59,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:00,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:00,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662616455] [2024-10-14 06:07:00,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662616455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:00,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:00,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 06:07:00,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246824109] [2024-10-14 06:07:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:00,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 06:07:00,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:00,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 06:07:00,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-10-14 06:07:00,389 INFO L87 Difference]: Start difference. First operand 306 states and 431 transitions. Second operand has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:00,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:00,787 INFO L93 Difference]: Finished difference Result 569 states and 809 transitions. [2024-10-14 06:07:00,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 06:07:00,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-10-14 06:07:00,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:00,790 INFO L225 Difference]: With dead ends: 569 [2024-10-14 06:07:00,790 INFO L226 Difference]: Without dead ends: 311 [2024-10-14 06:07:00,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2024-10-14 06:07:00,791 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 24 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:00,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4918 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:07:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-10-14 06:07:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 307. [2024-10-14 06:07:00,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.411764705882353) internal successors, (432), 306 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:00,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 432 transitions. [2024-10-14 06:07:00,798 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 432 transitions. Word has length 48 [2024-10-14 06:07:00,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:00,798 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 432 transitions. [2024-10-14 06:07:00,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 432 transitions. [2024-10-14 06:07:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 06:07:00,799 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:00,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:00,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 06:07:00,800 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:00,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:00,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1310032837, now seen corresponding path program 1 times [2024-10-14 06:07:00,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:00,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938679675] [2024-10-14 06:07:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:00,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:01,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:01,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:01,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938679675] [2024-10-14 06:07:01,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938679675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:01,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:01,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 06:07:01,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198420602] [2024-10-14 06:07:01,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:01,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 06:07:01,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:01,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 06:07:01,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-10-14 06:07:01,568 INFO L87 Difference]: Start difference. First operand 307 states and 432 transitions. Second operand has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:01,919 INFO L93 Difference]: Finished difference Result 570 states and 810 transitions. [2024-10-14 06:07:01,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 06:07:01,920 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-10-14 06:07:01,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:01,921 INFO L225 Difference]: With dead ends: 570 [2024-10-14 06:07:01,922 INFO L226 Difference]: Without dead ends: 308 [2024-10-14 06:07:01,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-10-14 06:07:01,923 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 19 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:01,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4078 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 06:07:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-10-14 06:07:01,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 305. [2024-10-14 06:07:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.4111842105263157) internal successors, (429), 304 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 429 transitions. [2024-10-14 06:07:01,931 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 429 transitions. Word has length 48 [2024-10-14 06:07:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:01,931 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 429 transitions. [2024-10-14 06:07:01,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 429 transitions. [2024-10-14 06:07:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 06:07:01,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:01,933 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:01,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 06:07:01,934 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:01,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2138095795, now seen corresponding path program 1 times [2024-10-14 06:07:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:01,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403273283] [2024-10-14 06:07:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 06:07:08,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:08,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403273283] [2024-10-14 06:07:08,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403273283] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 06:07:08,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103672763] [2024-10-14 06:07:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 06:07:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:07:08,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 06:07:08,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 06:07:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:09,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-14 06:07:09,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 06:07:10,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:10,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 06:07:10,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103672763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:10,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 06:07:10,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2024-10-14 06:07:10,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040665838] [2024-10-14 06:07:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:10,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:07:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:10,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:07:10,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-10-14 06:07:10,199 INFO L87 Difference]: Start difference. First operand 305 states and 429 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:10,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:10,719 INFO L93 Difference]: Finished difference Result 629 states and 899 transitions. [2024-10-14 06:07:10,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:07:10,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-10-14 06:07:10,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:10,721 INFO L225 Difference]: With dead ends: 629 [2024-10-14 06:07:10,722 INFO L226 Difference]: Without dead ends: 369 [2024-10-14 06:07:10,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-14 06:07:10,723 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 347 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:10,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 751 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:07:10,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-10-14 06:07:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 310. [2024-10-14 06:07:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4077669902912622) internal successors, (435), 309 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 435 transitions. [2024-10-14 06:07:10,731 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 435 transitions. Word has length 142 [2024-10-14 06:07:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:10,731 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 435 transitions. [2024-10-14 06:07:10,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 435 transitions. [2024-10-14 06:07:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 06:07:10,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:10,733 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:10,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 06:07:10,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 06:07:10,939 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:10,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:10,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1888748472, now seen corresponding path program 1 times [2024-10-14 06:07:10,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:10,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901529715] [2024-10-14 06:07:10,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:10,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 06:07:14,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901529715] [2024-10-14 06:07:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901529715] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 06:07:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334585341] [2024-10-14 06:07:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:14,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 06:07:14,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:07:14,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 06:07:14,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 06:07:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:15,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-14 06:07:15,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 06:07:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:15,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 06:07:15,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334585341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 06:07:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-10-14 06:07:15,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051155468] [2024-10-14 06:07:15,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 06:07:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 06:07:15,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-14 06:07:15,935 INFO L87 Difference]: Start difference. First operand 310 states and 435 transitions. Second operand has 8 states, 8 states have (on average 17.875) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:16,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:16,538 INFO L93 Difference]: Finished difference Result 770 states and 1101 transitions. [2024-10-14 06:07:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 06:07:16,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-10-14 06:07:16,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:16,540 INFO L225 Difference]: With dead ends: 770 [2024-10-14 06:07:16,541 INFO L226 Difference]: Without dead ends: 505 [2024-10-14 06:07:16,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-10-14 06:07:16,542 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 846 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:16,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 985 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:07:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-10-14 06:07:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 363. [2024-10-14 06:07:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.4005524861878453) internal successors, (507), 362 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 507 transitions. [2024-10-14 06:07:16,548 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 507 transitions. Word has length 143 [2024-10-14 06:07:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:16,548 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 507 transitions. [2024-10-14 06:07:16,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 507 transitions. [2024-10-14 06:07:16,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 06:07:16,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:16,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:16,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 06:07:16,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 06:07:16,751 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:16,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:16,752 INFO L85 PathProgramCache]: Analyzing trace with hash 504277142, now seen corresponding path program 1 times [2024-10-14 06:07:16,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:16,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867413640] [2024-10-14 06:07:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:16,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:18,829 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:18,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:18,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867413640] [2024-10-14 06:07:18,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867413640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:18,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:18,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:07:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871871534] [2024-10-14 06:07:18,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:18,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:07:18,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:18,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:07:18,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:07:18,832 INFO L87 Difference]: Start difference. First operand 363 states and 507 transitions. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:19,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:19,070 INFO L93 Difference]: Finished difference Result 721 states and 1026 transitions. [2024-10-14 06:07:19,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:07:19,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-10-14 06:07:19,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:19,072 INFO L225 Difference]: With dead ends: 721 [2024-10-14 06:07:19,073 INFO L226 Difference]: Without dead ends: 456 [2024-10-14 06:07:19,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-10-14 06:07:19,076 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 545 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:19,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1792 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:07:19,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-10-14 06:07:19,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 374. [2024-10-14 06:07:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 1.4021447721179625) internal successors, (523), 373 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 523 transitions. [2024-10-14 06:07:19,087 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 523 transitions. Word has length 144 [2024-10-14 06:07:19,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:19,088 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 523 transitions. [2024-10-14 06:07:19,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 8 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 523 transitions. [2024-10-14 06:07:19,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 06:07:19,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:19,090 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:19,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 06:07:19,090 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:19,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:19,091 INFO L85 PathProgramCache]: Analyzing trace with hash 890894447, now seen corresponding path program 1 times [2024-10-14 06:07:19,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:19,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044292902] [2024-10-14 06:07:19,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:19,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044292902] [2024-10-14 06:07:20,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044292902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:20,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:20,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:07:20,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220839484] [2024-10-14 06:07:20,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:20,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:07:20,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:20,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:07:20,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:07:20,754 INFO L87 Difference]: Start difference. First operand 374 states and 523 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:21,107 INFO L93 Difference]: Finished difference Result 650 states and 919 transitions. [2024-10-14 06:07:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:07:21,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-10-14 06:07:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:21,109 INFO L225 Difference]: With dead ends: 650 [2024-10-14 06:07:21,110 INFO L226 Difference]: Without dead ends: 380 [2024-10-14 06:07:21,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:07:21,111 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 250 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:21,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 768 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 06:07:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-10-14 06:07:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2024-10-14 06:07:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.4005305039787799) internal successors, (528), 377 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 528 transitions. [2024-10-14 06:07:21,119 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 528 transitions. Word has length 144 [2024-10-14 06:07:21,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:21,119 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 528 transitions. [2024-10-14 06:07:21,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 528 transitions. [2024-10-14 06:07:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 06:07:21,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:21,121 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:21,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 06:07:21,121 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:21,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1232030200, now seen corresponding path program 1 times [2024-10-14 06:07:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:21,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805190710] [2024-10-14 06:07:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:21,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:28,012 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 06:07:28,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:28,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805190710] [2024-10-14 06:07:28,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805190710] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 06:07:28,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067956477] [2024-10-14 06:07:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:28,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 06:07:28,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:07:28,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 06:07:28,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 06:07:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:28,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-10-14 06:07:28,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 06:07:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:29,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 06:07:29,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067956477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:29,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 06:07:29,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 25 [2024-10-14 06:07:29,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192719796] [2024-10-14 06:07:29,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:29,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 06:07:29,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:29,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 06:07:29,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2024-10-14 06:07:29,469 INFO L87 Difference]: Start difference. First operand 378 states and 528 transitions. Second operand has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:30,316 INFO L93 Difference]: Finished difference Result 788 states and 1122 transitions. [2024-10-14 06:07:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 06:07:30,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-10-14 06:07:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:30,320 INFO L225 Difference]: With dead ends: 788 [2024-10-14 06:07:30,320 INFO L226 Difference]: Without dead ends: 520 [2024-10-14 06:07:30,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2024-10-14 06:07:30,321 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 574 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:30,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1438 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 06:07:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-10-14 06:07:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 409. [2024-10-14 06:07:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 1.4019607843137254) internal successors, (572), 408 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 572 transitions. [2024-10-14 06:07:30,333 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 572 transitions. Word has length 144 [2024-10-14 06:07:30,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:30,333 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 572 transitions. [2024-10-14 06:07:30,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 10 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:30,334 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 572 transitions. [2024-10-14 06:07:30,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 06:07:30,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:30,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:30,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 06:07:30,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 06:07:30,541 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:30,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1053371743, now seen corresponding path program 1 times [2024-10-14 06:07:30,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:30,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021396874] [2024-10-14 06:07:30,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:30,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:31,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:31,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021396874] [2024-10-14 06:07:31,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021396874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:31,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:31,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:07:31,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206758170] [2024-10-14 06:07:31,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:31,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:07:31,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:31,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:07:31,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:07:31,075 INFO L87 Difference]: Start difference. First operand 409 states and 572 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:31,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:31,310 INFO L93 Difference]: Finished difference Result 926 states and 1311 transitions. [2024-10-14 06:07:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:07:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-14 06:07:31,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:31,313 INFO L225 Difference]: With dead ends: 926 [2024-10-14 06:07:31,313 INFO L226 Difference]: Without dead ends: 417 [2024-10-14 06:07:31,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:07:31,314 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 138 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:31,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1657 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:07:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-14 06:07:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 413. [2024-10-14 06:07:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.3980582524271845) internal successors, (576), 412 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:31,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 576 transitions. [2024-10-14 06:07:31,324 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 576 transitions. Word has length 145 [2024-10-14 06:07:31,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:31,325 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 576 transitions. [2024-10-14 06:07:31,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 576 transitions. [2024-10-14 06:07:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 06:07:31,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:31,327 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:31,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 06:07:31,327 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:31,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:31,328 INFO L85 PathProgramCache]: Analyzing trace with hash 382550363, now seen corresponding path program 1 times [2024-10-14 06:07:31,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:31,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003047593] [2024-10-14 06:07:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:31,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:32,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003047593] [2024-10-14 06:07:32,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003047593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:32,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:32,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:07:32,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496382151] [2024-10-14 06:07:32,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:32,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:07:32,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:32,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:07:32,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:07:32,529 INFO L87 Difference]: Start difference. First operand 413 states and 576 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:32,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:32,709 INFO L93 Difference]: Finished difference Result 688 states and 969 transitions. [2024-10-14 06:07:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:07:32,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-14 06:07:32,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:32,711 INFO L225 Difference]: With dead ends: 688 [2024-10-14 06:07:32,713 INFO L226 Difference]: Without dead ends: 411 [2024-10-14 06:07:32,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:07:32,714 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 2 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:32,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 976 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:07:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-14 06:07:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2024-10-14 06:07:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.395121951219512) internal successors, (572), 410 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 572 transitions. [2024-10-14 06:07:32,725 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 572 transitions. Word has length 145 [2024-10-14 06:07:32,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:32,725 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 572 transitions. [2024-10-14 06:07:32,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:32,726 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 572 transitions. [2024-10-14 06:07:32,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 06:07:32,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:32,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:32,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 06:07:32,728 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:32,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:32,728 INFO L85 PathProgramCache]: Analyzing trace with hash -881532432, now seen corresponding path program 1 times [2024-10-14 06:07:32,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:32,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517024299] [2024-10-14 06:07:32,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:32,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:34,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:34,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517024299] [2024-10-14 06:07:34,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517024299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:34,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:07:34,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:07:34,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488699809] [2024-10-14 06:07:34,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:34,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:07:34,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:07:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:07:34,191 INFO L87 Difference]: Start difference. First operand 411 states and 572 transitions. Second operand has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:34,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:34,382 INFO L93 Difference]: Finished difference Result 768 states and 1086 transitions. [2024-10-14 06:07:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:07:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-14 06:07:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:34,385 INFO L225 Difference]: With dead ends: 768 [2024-10-14 06:07:34,385 INFO L226 Difference]: Without dead ends: 499 [2024-10-14 06:07:34,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-14 06:07:34,388 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 735 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:34,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 1383 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:07:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-10-14 06:07:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 439. [2024-10-14 06:07:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.3972602739726028) internal successors, (612), 438 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 612 transitions. [2024-10-14 06:07:34,405 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 612 transitions. Word has length 145 [2024-10-14 06:07:34,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:34,405 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 612 transitions. [2024-10-14 06:07:34,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.11111111111111) internal successors, (145), 8 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:34,406 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 612 transitions. [2024-10-14 06:07:34,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 06:07:34,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:34,407 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:34,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 06:07:34,408 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:34,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:34,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1363963873, now seen corresponding path program 1 times [2024-10-14 06:07:34,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:34,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163048268] [2024-10-14 06:07:34,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:34,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:07:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:40,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:07:40,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163048268] [2024-10-14 06:07:40,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163048268] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 06:07:40,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212613556] [2024-10-14 06:07:40,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:40,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 06:07:40,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:07:40,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 06:07:40,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 06:07:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:07:41,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-10-14 06:07:41,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 06:07:42,799 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:07:42,799 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 06:07:42,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212613556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:07:42,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 06:07:42,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [17] total 34 [2024-10-14 06:07:42,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847694935] [2024-10-14 06:07:42,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:07:42,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 06:07:42,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:07:42,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 06:07:42,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1068, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 06:07:42,802 INFO L87 Difference]: Start difference. First operand 439 states and 612 transitions. Second operand has 19 states, 19 states have (on average 7.631578947368421) internal successors, (145), 18 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:44,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:07:44,160 INFO L93 Difference]: Finished difference Result 1032 states and 1457 transitions. [2024-10-14 06:07:44,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 06:07:44,161 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.631578947368421) internal successors, (145), 18 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-14 06:07:44,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:07:44,164 INFO L225 Difference]: With dead ends: 1032 [2024-10-14 06:07:44,164 INFO L226 Difference]: Without dead ends: 675 [2024-10-14 06:07:44,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=189, Invalid=1791, Unknown=0, NotChecked=0, Total=1980 [2024-10-14 06:07:44,166 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 481 mSDsluCounter, 2110 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:07:44,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 2307 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 06:07:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-10-14 06:07:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 573. [2024-10-14 06:07:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 1.416083916083916) internal successors, (810), 572 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:44,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 810 transitions. [2024-10-14 06:07:44,179 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 810 transitions. Word has length 145 [2024-10-14 06:07:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:07:44,180 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 810 transitions. [2024-10-14 06:07:44,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.631578947368421) internal successors, (145), 18 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:07:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 810 transitions. [2024-10-14 06:07:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-14 06:07:44,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:07:44,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:07:44,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 06:07:44,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-14 06:07:44,387 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:07:44,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:07:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash -778678341, now seen corresponding path program 1 times [2024-10-14 06:07:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:07:44,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701341803] [2024-10-14 06:07:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:07:44,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms