./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 70ca1bfdbf6f4157e1339cfca82c678bf19a6299fc4637582e6399e1c79061a2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 05:01:34,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 05:01:34,869 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 05:01:34,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 05:01:34,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 05:01:34,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 05:01:34,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 05:01:34,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 05:01:34,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 05:01:34,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 05:01:34,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 05:01:34,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 05:01:34,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 05:01:34,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 05:01:34,905 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 05:01:34,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 05:01:34,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 05:01:34,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 05:01:34,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 05:01:34,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 05:01:34,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 05:01:34,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 05:01:34,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 05:01:34,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 05:01:34,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 05:01:34,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 05:01:34,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 05:01:34,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 05:01:34,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 05:01:34,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 05:01:34,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 05:01:34,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 05:01:34,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:01:34,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 05:01:34,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 05:01:34,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 05:01:34,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 05:01:34,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 05:01:34,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 05:01:34,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 05:01:34,915 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 05:01:34,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 05:01:34,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ca1bfdbf6f4157e1339cfca82c678bf19a6299fc4637582e6399e1c79061a2 [2024-10-14 05:01:35,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 05:01:35,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 05:01:35,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 05:01:35,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 05:01:35,203 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 05:01:35,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-10-14 05:01:36,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 05:01:37,067 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 05:01:37,068 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-10-14 05:01:37,111 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b34c46c16/d9db7e1322714fa787dbbfd5896fd5f3/FLAGcdd84838e [2024-10-14 05:01:37,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b34c46c16/d9db7e1322714fa787dbbfd5896fd5f3 [2024-10-14 05:01:37,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 05:01:37,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 05:01:37,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 05:01:37,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 05:01:37,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 05:01:37,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:01:37" (1/1) ... [2024-10-14 05:01:37,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52728d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:37, skipping insertion in model container [2024-10-14 05:01:37,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:01:37" (1/1) ... [2024-10-14 05:01:37,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 05:01:37,648 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[15510,15523] [2024-10-14 05:01:37,669 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[17385,17398] [2024-10-14 05:01:38,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:01:38,374 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 05:01:38,420 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[15510,15523] [2024-10-14 05:01:38,427 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c[17385,17398] [2024-10-14 05:01:38,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:01:38,851 INFO L204 MainTranslator]: Completed translation [2024-10-14 05:01:38,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38 WrapperNode [2024-10-14 05:01:38,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 05:01:38,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 05:01:38,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 05:01:38,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 05:01:38,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:38,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,335 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-10-14 05:01:39,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 05:01:39,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 05:01:39,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 05:01:39,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 05:01:39,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,564 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 05:01:39,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 05:01:39,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 05:01:39,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 05:01:39,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 05:01:39,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (1/1) ... [2024-10-14 05:01:39,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:01:39,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:01:39,950 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 05:01:39,953 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 05:01:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 05:01:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 05:01:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 05:01:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 05:01:40,110 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 05:01:40,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 05:01:44,392 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-10-14 05:01:44,393 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 05:01:44,491 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 05:01:44,491 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 05:01:44,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:01:44 BoogieIcfgContainer [2024-10-14 05:01:44,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 05:01:44,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 05:01:44,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 05:01:44,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 05:01:44,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:01:37" (1/3) ... [2024-10-14 05:01:44,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c55e407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:01:44, skipping insertion in model container [2024-10-14 05:01:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:01:38" (2/3) ... [2024-10-14 05:01:44,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c55e407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:01:44, skipping insertion in model container [2024-10-14 05:01:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:01:44" (3/3) ... [2024-10-14 05:01:44,502 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label00.c [2024-10-14 05:01:44,522 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 05:01:44,523 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 05:01:44,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 05:01:44,627 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;@1012e9c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 05:01:44,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 05:01:44,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 05:01:44,648 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:44,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:44,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:44,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:44,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1909186540, now seen corresponding path program 1 times [2024-10-14 05:01:44,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:44,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403020828] [2024-10-14 05:01:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:44,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:44,884 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 05:01:44,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403020828] [2024-10-14 05:01:44,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403020828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:44,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:44,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:01:44,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781160279] [2024-10-14 05:01:44,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:44,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 05:01:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:44,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 05:01:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 05:01:44,914 INFO L87 Difference]: Start difference. First operand has 851 states, 848 states have (on average 1.9728773584905661) internal successors, (1673), 850 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 05:01:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:45,027 INFO L93 Difference]: Finished difference Result 1657 states and 3259 transitions. [2024-10-14 05:01:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 05:01:45,031 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-10-14 05:01:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:45,054 INFO L225 Difference]: With dead ends: 1657 [2024-10-14 05:01:45,054 INFO L226 Difference]: Without dead ends: 847 [2024-10-14 05:01:45,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 05:01:45,069 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:45,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1601 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:45,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-10-14 05:01:45,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2024-10-14 05:01:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 845 states have (on average 1.8958579881656805) internal successors, (1602), 846 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states 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 05:01:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1602 transitions. [2024-10-14 05:01:45,161 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1602 transitions. Word has length 15 [2024-10-14 05:01:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:45,161 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1602 transitions. [2024-10-14 05:01:45,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 05:01:45,162 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1602 transitions. [2024-10-14 05:01:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 05:01:45,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:45,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:45,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 05:01:45,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:45,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:45,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1919677999, now seen corresponding path program 1 times [2024-10-14 05:01:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960204905] [2024-10-14 05:01:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:45,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:45,315 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 05:01:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:45,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960204905] [2024-10-14 05:01:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960204905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:45,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:01:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556064627] [2024-10-14 05:01:45,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:45,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:45,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:45,323 INFO L87 Difference]: Start difference. First operand 847 states and 1602 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 05:01:48,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:48,459 INFO L93 Difference]: Finished difference Result 2351 states and 4475 transitions. [2024-10-14 05:01:48,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:48,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-10-14 05:01:48,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:48,467 INFO L225 Difference]: With dead ends: 2351 [2024-10-14 05:01:48,467 INFO L226 Difference]: Without dead ends: 1598 [2024-10-14 05:01:48,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:48,470 INFO L432 NwaCegarLoop]: 581 mSDtfsCounter, 966 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:48,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 588 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-14 05:01:48,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-10-14 05:01:48,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2024-10-14 05:01:48,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1596 states have (on average 1.6472431077694236) internal successors, (2629), 1597 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states 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 05:01:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2629 transitions. [2024-10-14 05:01:48,514 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2629 transitions. Word has length 15 [2024-10-14 05:01:48,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:48,515 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2629 transitions. [2024-10-14 05:01:48,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 05:01:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2629 transitions. [2024-10-14 05:01:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 05:01:48,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:48,518 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] [2024-10-14 05:01:48,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 05:01:48,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:48,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:48,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1430428717, now seen corresponding path program 1 times [2024-10-14 05:01:48,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:48,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958645863] [2024-10-14 05:01:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:48,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:48,704 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 05:01:48,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:48,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958645863] [2024-10-14 05:01:48,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958645863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:48,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:48,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:01:48,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569874804] [2024-10-14 05:01:48,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:48,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:01:48,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:48,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:01:48,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:01:48,710 INFO L87 Difference]: Start difference. First operand 1598 states and 2629 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 05:01:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:48,791 INFO L93 Difference]: Finished difference Result 1650 states and 2711 transitions. [2024-10-14 05:01:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:01:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-14 05:01:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:48,798 INFO L225 Difference]: With dead ends: 1650 [2024-10-14 05:01:48,799 INFO L226 Difference]: Without dead ends: 1598 [2024-10-14 05:01:48,802 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 05:01:48,803 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:48,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4753 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:01:48,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2024-10-14 05:01:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2024-10-14 05:01:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1596 states have (on average 1.6221804511278195) internal successors, (2589), 1597 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states 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 05:01:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2589 transitions. [2024-10-14 05:01:48,838 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2589 transitions. Word has length 23 [2024-10-14 05:01:48,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:48,838 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2589 transitions. [2024-10-14 05:01:48,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 05:01:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2589 transitions. [2024-10-14 05:01:48,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 05:01:48,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:48,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:48,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 05:01:48,843 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:48,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:48,844 INFO L85 PathProgramCache]: Analyzing trace with hash 270250855, now seen corresponding path program 1 times [2024-10-14 05:01:48,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:48,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698296355] [2024-10-14 05:01:48,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:48,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:49,132 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 05:01:49,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:49,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698296355] [2024-10-14 05:01:49,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698296355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:49,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:49,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:01:49,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062787855] [2024-10-14 05:01:49,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:49,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:01:49,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:49,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:01:49,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:01:49,136 INFO L87 Difference]: Start difference. First operand 1598 states and 2589 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:49,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:49,457 INFO L93 Difference]: Finished difference Result 2186 states and 3537 transitions. [2024-10-14 05:01:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 05:01:49,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-14 05:01:49,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:49,466 INFO L225 Difference]: With dead ends: 2186 [2024-10-14 05:01:49,467 INFO L226 Difference]: Without dead ends: 2137 [2024-10-14 05:01:49,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:01:49,469 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 9829 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9829 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:49,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9829 Valid, 3039 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:01:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2024-10-14 05:01:49,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 1645. [2024-10-14 05:01:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1643 states have (on average 1.6220328667072428) internal successors, (2665), 1644 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states 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 05:01:49,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2665 transitions. [2024-10-14 05:01:49,510 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2665 transitions. Word has length 62 [2024-10-14 05:01:49,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:49,510 INFO L471 AbstractCegarLoop]: Abstraction has 1645 states and 2665 transitions. [2024-10-14 05:01:49,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2665 transitions. [2024-10-14 05:01:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 05:01:49,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:49,513 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:49,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 05:01:49,513 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:49,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1880202711, now seen corresponding path program 1 times [2024-10-14 05:01:49,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:49,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582943452] [2024-10-14 05:01:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:49,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:49,612 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 05:01:49,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:49,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582943452] [2024-10-14 05:01:49,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582943452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:49,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:49,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:49,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347121612] [2024-10-14 05:01:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:49,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:49,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:49,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:49,615 INFO L87 Difference]: Start difference. First operand 1645 states and 2665 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:49,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:49,657 INFO L93 Difference]: Finished difference Result 1826 states and 2956 transitions. [2024-10-14 05:01:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:49,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-14 05:01:49,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:49,666 INFO L225 Difference]: With dead ends: 1826 [2024-10-14 05:01:49,666 INFO L226 Difference]: Without dead ends: 1730 [2024-10-14 05:01:49,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:49,668 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 1490 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:49,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1626 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-10-14 05:01:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1726. [2024-10-14 05:01:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.6200696055684454) internal successors, (2793), 1725 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2793 transitions. [2024-10-14 05:01:49,704 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2793 transitions. Word has length 64 [2024-10-14 05:01:49,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:49,706 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2793 transitions. [2024-10-14 05:01:49,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2793 transitions. [2024-10-14 05:01:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 05:01:49,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:49,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:49,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 05:01:49,709 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:49,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1882347663, now seen corresponding path program 1 times [2024-10-14 05:01:49,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:49,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656198469] [2024-10-14 05:01:49,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:49,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:50,075 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 05:01:50,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:50,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656198469] [2024-10-14 05:01:50,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656198469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:50,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:50,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:01:50,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020676020] [2024-10-14 05:01:50,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:50,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:01:50,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:50,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:01:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:01:50,078 INFO L87 Difference]: Start difference. First operand 1726 states and 2793 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:50,338 INFO L93 Difference]: Finished difference Result 1905 states and 3077 transitions. [2024-10-14 05:01:50,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:01:50,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-14 05:01:50,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:50,350 INFO L225 Difference]: With dead ends: 1905 [2024-10-14 05:01:50,350 INFO L226 Difference]: Without dead ends: 1728 [2024-10-14 05:01:50,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-14 05:01:50,352 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 7505 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7505 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:50,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7505 Valid, 1924 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:01:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-10-14 05:01:50,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2024-10-14 05:01:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.618909512761021) internal successors, (2791), 1725 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states 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 05:01:50,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2791 transitions. [2024-10-14 05:01:50,437 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2791 transitions. Word has length 64 [2024-10-14 05:01:50,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:50,437 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2791 transitions. [2024-10-14 05:01:50,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2791 transitions. [2024-10-14 05:01:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 05:01:50,438 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:50,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:50,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 05:01:50,439 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:50,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:50,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1905436323, now seen corresponding path program 1 times [2024-10-14 05:01:50,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:50,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346776404] [2024-10-14 05:01:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:50,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:50,658 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 05:01:50,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:50,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346776404] [2024-10-14 05:01:50,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346776404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:50,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:50,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:01:50,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897991884] [2024-10-14 05:01:50,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:50,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:01:50,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:50,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:01:50,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:01:50,661 INFO L87 Difference]: Start difference. First operand 1726 states and 2791 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:50,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:50,705 INFO L93 Difference]: Finished difference Result 1732 states and 2798 transitions. [2024-10-14 05:01:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:01:50,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-14 05:01:50,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:50,713 INFO L225 Difference]: With dead ends: 1732 [2024-10-14 05:01:50,713 INFO L226 Difference]: Without dead ends: 1730 [2024-10-14 05:01:50,714 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 05:01:50,715 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 0 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4666 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:50,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4666 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-10-14 05:01:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1730. [2024-10-14 05:01:50,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1728 states have (on average 1.6168981481481481) internal successors, (2794), 1729 states have internal predecessors, (2794), 0 states have call successors, (0), 0 states 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 05:01:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2794 transitions. [2024-10-14 05:01:50,755 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2794 transitions. Word has length 65 [2024-10-14 05:01:50,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:50,756 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2794 transitions. [2024-10-14 05:01:50,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2794 transitions. [2024-10-14 05:01:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:01:50,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:50,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:50,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 05:01:50,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:50,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:50,759 INFO L85 PathProgramCache]: Analyzing trace with hash -280645265, now seen corresponding path program 1 times [2024-10-14 05:01:50,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:50,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187117341] [2024-10-14 05:01:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:50,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:50,841 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 05:01:50,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:50,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187117341] [2024-10-14 05:01:50,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187117341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:50,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:50,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:50,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223347890] [2024-10-14 05:01:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:50,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:50,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:50,844 INFO L87 Difference]: Start difference. First operand 1730 states and 2794 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:50,882 INFO L93 Difference]: Finished difference Result 2076 states and 3334 transitions. [2024-10-14 05:01:50,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:50,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 05:01:50,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:50,890 INFO L225 Difference]: With dead ends: 2076 [2024-10-14 05:01:50,890 INFO L226 Difference]: Without dead ends: 1895 [2024-10-14 05:01:50,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:50,892 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1503 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:50,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1691 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-10-14 05:01:50,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2024-10-14 05:01:50,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1891 states have (on average 1.6102591221575886) internal successors, (3045), 1892 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states 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 05:01:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 3045 transitions. [2024-10-14 05:01:50,935 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 3045 transitions. Word has length 66 [2024-10-14 05:01:50,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:50,935 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 3045 transitions. [2024-10-14 05:01:50,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:50,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 3045 transitions. [2024-10-14 05:01:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:01:50,939 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:50,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:50,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 05:01:50,940 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:50,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash -240701329, now seen corresponding path program 1 times [2024-10-14 05:01:50,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:50,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758986600] [2024-10-14 05:01:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:50,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:51,032 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 05:01:51,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:51,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758986600] [2024-10-14 05:01:51,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758986600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:51,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:51,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579476743] [2024-10-14 05:01:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:51,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:51,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,035 INFO L87 Difference]: Start difference. First operand 1893 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:51,078 INFO L93 Difference]: Finished difference Result 2549 states and 4059 transitions. [2024-10-14 05:01:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:51,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 05:01:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:51,087 INFO L225 Difference]: With dead ends: 2549 [2024-10-14 05:01:51,088 INFO L226 Difference]: Without dead ends: 2205 [2024-10-14 05:01:51,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,092 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1501 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:51,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:51,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2024-10-14 05:01:51,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2203. [2024-10-14 05:01:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 2201 states have (on average 1.5970013630168105) internal successors, (3515), 2202 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states 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 05:01:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3515 transitions. [2024-10-14 05:01:51,142 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3515 transitions. Word has length 66 [2024-10-14 05:01:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:51,142 INFO L471 AbstractCegarLoop]: Abstraction has 2203 states and 3515 transitions. [2024-10-14 05:01:51,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3515 transitions. [2024-10-14 05:01:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:01:51,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:51,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:51,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 05:01:51,144 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:51,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:51,148 INFO L85 PathProgramCache]: Analyzing trace with hash -866357393, now seen corresponding path program 1 times [2024-10-14 05:01:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:51,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997101797] [2024-10-14 05:01:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:51,207 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 05:01:51,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:51,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997101797] [2024-10-14 05:01:51,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997101797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:51,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:51,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:51,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004859585] [2024-10-14 05:01:51,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:51,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:51,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:51,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:51,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,210 INFO L87 Difference]: Start difference. First operand 2203 states and 3515 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:51,262 INFO L93 Difference]: Finished difference Result 3447 states and 5413 transitions. [2024-10-14 05:01:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:51,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 05:01:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:51,273 INFO L225 Difference]: With dead ends: 3447 [2024-10-14 05:01:51,273 INFO L226 Difference]: Without dead ends: 2793 [2024-10-14 05:01:51,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,276 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 1499 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:51,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1695 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:51,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2024-10-14 05:01:51,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2791. [2024-10-14 05:01:51,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2789 states have (on average 1.5743994263176766) internal successors, (4391), 2790 states have internal predecessors, (4391), 0 states have call successors, (0), 0 states 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 05:01:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4391 transitions. [2024-10-14 05:01:51,343 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4391 transitions. Word has length 66 [2024-10-14 05:01:51,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:51,344 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 4391 transitions. [2024-10-14 05:01:51,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4391 transitions. [2024-10-14 05:01:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:01:51,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:51,345 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:51,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 05:01:51,346 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:51,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash 22376047, now seen corresponding path program 1 times [2024-10-14 05:01:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:51,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145366603] [2024-10-14 05:01:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:51,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:51,398 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 05:01:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145366603] [2024-10-14 05:01:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145366603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:51,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:51,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:51,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939332255] [2024-10-14 05:01:51,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:51,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:51,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,400 INFO L87 Difference]: Start difference. First operand 2791 states and 4391 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:51,470 INFO L93 Difference]: Finished difference Result 5147 states and 7929 transitions. [2024-10-14 05:01:51,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:51,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 05:01:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:51,485 INFO L225 Difference]: With dead ends: 5147 [2024-10-14 05:01:51,485 INFO L226 Difference]: Without dead ends: 3905 [2024-10-14 05:01:51,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,489 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1497 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:51,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2024-10-14 05:01:51,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3903. [2024-10-14 05:01:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3901 states have (on average 1.5419123301717508) internal successors, (6015), 3902 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states 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 05:01:51,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 6015 transitions. [2024-10-14 05:01:51,596 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 6015 transitions. Word has length 66 [2024-10-14 05:01:51,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:51,596 INFO L471 AbstractCegarLoop]: Abstraction has 3903 states and 6015 transitions. [2024-10-14 05:01:51,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 6015 transitions. [2024-10-14 05:01:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 05:01:51,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:51,597 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:51,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 05:01:51,598 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:51,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash -12062097, now seen corresponding path program 1 times [2024-10-14 05:01:51,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:51,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346798107] [2024-10-14 05:01:51,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:51,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:51,700 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 05:01:51,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:51,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346798107] [2024-10-14 05:01:51,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346798107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:51,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:51,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:51,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042482295] [2024-10-14 05:01:51,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:51,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:51,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:51,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,703 INFO L87 Difference]: Start difference. First operand 3903 states and 6015 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:51,850 INFO L93 Difference]: Finished difference Result 8355 states and 12577 transitions. [2024-10-14 05:01:51,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:51,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 05:01:51,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:51,870 INFO L225 Difference]: With dead ends: 8355 [2024-10-14 05:01:51,870 INFO L226 Difference]: Without dead ends: 6001 [2024-10-14 05:01:51,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:51,877 INFO L432 NwaCegarLoop]: 1614 mSDtfsCounter, 1505 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:51,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:51,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6001 states. [2024-10-14 05:01:52,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6001 to 5999. [2024-10-14 05:01:52,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5997 states have (on average 1.5019176254794064) internal successors, (9007), 5998 states have internal predecessors, (9007), 0 states have call successors, (0), 0 states 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 05:01:52,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 9007 transitions. [2024-10-14 05:01:52,103 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 9007 transitions. Word has length 66 [2024-10-14 05:01:52,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:52,104 INFO L471 AbstractCegarLoop]: Abstraction has 5999 states and 9007 transitions. [2024-10-14 05:01:52,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 9007 transitions. [2024-10-14 05:01:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 05:01:52,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:52,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:01:52,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 05:01:52,106 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:52,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1491592148, now seen corresponding path program 1 times [2024-10-14 05:01:52,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:52,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214240485] [2024-10-14 05:01:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:52,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:52,177 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 05:01:52,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:52,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214240485] [2024-10-14 05:01:52,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214240485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:52,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:52,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:01:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047730877] [2024-10-14 05:01:52,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:52,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:01:52,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:01:52,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:52,181 INFO L87 Difference]: Start difference. First operand 5999 states and 9007 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:52,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:52,353 INFO L93 Difference]: Finished difference Result 10614 states and 15861 transitions. [2024-10-14 05:01:52,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:01:52,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-14 05:01:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:52,377 INFO L225 Difference]: With dead ends: 10614 [2024-10-14 05:01:52,377 INFO L226 Difference]: Without dead ends: 8115 [2024-10-14 05:01:52,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:01:52,384 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1504 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:52,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:01:52,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2024-10-14 05:01:52,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 8113. [2024-10-14 05:01:52,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8113 states, 8111 states have (on average 1.485513500184934) internal successors, (12049), 8112 states have internal predecessors, (12049), 0 states have call successors, (0), 0 states 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 05:01:52,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8113 states to 8113 states and 12049 transitions. [2024-10-14 05:01:52,613 INFO L78 Accepts]: Start accepts. Automaton has 8113 states and 12049 transitions. Word has length 68 [2024-10-14 05:01:52,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:52,613 INFO L471 AbstractCegarLoop]: Abstraction has 8113 states and 12049 transitions. [2024-10-14 05:01:52,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:52,614 INFO L276 IsEmpty]: Start isEmpty. Operand 8113 states and 12049 transitions. [2024-10-14 05:01:52,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:01:52,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:52,617 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:01:52,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 05:01:52,617 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:52,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:52,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1535692104, now seen corresponding path program 1 times [2024-10-14 05:01:52,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:52,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169976098] [2024-10-14 05:01:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 05:01:52,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:52,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169976098] [2024-10-14 05:01:52,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169976098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:52,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:52,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:01:52,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116692118] [2024-10-14 05:01:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:52,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:01:52,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:52,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:01:52,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:01:52,813 INFO L87 Difference]: Start difference. First operand 8113 states and 12049 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 05:01:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:53,786 INFO L93 Difference]: Finished difference Result 48831 states and 71160 transitions. [2024-10-14 05:01:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:01:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 86 [2024-10-14 05:01:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:53,882 INFO L225 Difference]: With dead ends: 48831 [2024-10-14 05:01:53,883 INFO L226 Difference]: Without dead ends: 42269 [2024-10-14 05:01:53,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:01:53,911 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8086 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8086 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:53,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8086 Valid, 3866 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:01:53,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42269 states. [2024-10-14 05:01:54,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42269 to 14673. [2024-10-14 05:01:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14673 states, 14671 states have (on average 1.4647263308567924) internal successors, (21489), 14672 states have internal predecessors, (21489), 0 states have call successors, (0), 0 states 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 05:01:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14673 states to 14673 states and 21489 transitions. [2024-10-14 05:01:54,708 INFO L78 Accepts]: Start accepts. Automaton has 14673 states and 21489 transitions. Word has length 86 [2024-10-14 05:01:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:54,709 INFO L471 AbstractCegarLoop]: Abstraction has 14673 states and 21489 transitions. [2024-10-14 05:01:54,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 05:01:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14673 states and 21489 transitions. [2024-10-14 05:01:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:01:54,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:54,712 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:01:54,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 05:01:54,713 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:54,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:54,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1575636040, now seen corresponding path program 1 times [2024-10-14 05:01:54,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:54,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709078297] [2024-10-14 05:01:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:54,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 05:01:54,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:54,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709078297] [2024-10-14 05:01:54,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709078297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:54,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:54,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:01:54,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085280939] [2024-10-14 05:01:54,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:54,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:01:54,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:54,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:01:54,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:01:54,919 INFO L87 Difference]: Start difference. First operand 14673 states and 21489 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:56,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:56,142 INFO L93 Difference]: Finished difference Result 55391 states and 80600 transitions. [2024-10-14 05:01:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:01:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 05:01:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:56,238 INFO L225 Difference]: With dead ends: 55391 [2024-10-14 05:01:56,239 INFO L226 Difference]: Without dead ends: 48829 [2024-10-14 05:01:56,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:01:56,271 INFO L432 NwaCegarLoop]: 1631 mSDtfsCounter, 8134 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8134 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:56,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8134 Valid, 3790 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:01:56,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48829 states. [2024-10-14 05:01:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48829 to 24529. [2024-10-14 05:01:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24529 states, 24527 states have (on average 1.4501977412647287) internal successors, (35569), 24528 states have internal predecessors, (35569), 0 states have call successors, (0), 0 states 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 05:01:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24529 states to 24529 states and 35569 transitions. [2024-10-14 05:01:57,630 INFO L78 Accepts]: Start accepts. Automaton has 24529 states and 35569 transitions. Word has length 86 [2024-10-14 05:01:57,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:01:57,630 INFO L471 AbstractCegarLoop]: Abstraction has 24529 states and 35569 transitions. [2024-10-14 05:01:57,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:57,631 INFO L276 IsEmpty]: Start isEmpty. Operand 24529 states and 35569 transitions. [2024-10-14 05:01:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:01:57,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:01:57,635 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:01:57,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 05:01:57,635 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:01:57,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:01:57,636 INFO L85 PathProgramCache]: Analyzing trace with hash 949979976, now seen corresponding path program 1 times [2024-10-14 05:01:57,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:01:57,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172720330] [2024-10-14 05:01:57,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:01:57,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:01:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:01:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 05:01:57,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:01:57,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172720330] [2024-10-14 05:01:57,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172720330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:01:57,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:01:57,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:01:57,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673891865] [2024-10-14 05:01:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:01:57,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:01:57,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:01:57,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:01:57,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:01:57,844 INFO L87 Difference]: Start difference. First operand 24529 states and 35569 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:01:59,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:01:59,087 INFO L93 Difference]: Finished difference Result 61951 states and 90040 transitions. [2024-10-14 05:01:59,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:01:59,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 05:01:59,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:01:59,205 INFO L225 Difference]: With dead ends: 61951 [2024-10-14 05:01:59,205 INFO L226 Difference]: Without dead ends: 55389 [2024-10-14 05:01:59,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:01:59,238 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 8187 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8187 SdHoareTripleChecker+Valid, 3768 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:01:59,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8187 Valid, 3768 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:01:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55389 states. [2024-10-14 05:02:00,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55389 to 31089. [2024-10-14 05:02:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31089 states, 31087 states have (on average 1.4478399330910026) internal successors, (45009), 31088 states have internal predecessors, (45009), 0 states have call successors, (0), 0 states 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 05:02:00,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31089 states to 31089 states and 45009 transitions. [2024-10-14 05:02:00,379 INFO L78 Accepts]: Start accepts. Automaton has 31089 states and 45009 transitions. Word has length 86 [2024-10-14 05:02:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:00,379 INFO L471 AbstractCegarLoop]: Abstraction has 31089 states and 45009 transitions. [2024-10-14 05:02:00,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:02:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 31089 states and 45009 transitions. [2024-10-14 05:02:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:02:00,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:00,384 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:00,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 05:02:00,385 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:00,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1838713416, now seen corresponding path program 1 times [2024-10-14 05:02:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:00,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784670280] [2024-10-14 05:02:00,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:00,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 05:02:00,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:00,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784670280] [2024-10-14 05:02:00,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784670280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:00,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:00,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:02:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750627755] [2024-10-14 05:02:00,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:02:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:00,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:02:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:02:00,584 INFO L87 Difference]: Start difference. First operand 31089 states and 45009 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:02:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:02,000 INFO L93 Difference]: Finished difference Result 68511 states and 99480 transitions. [2024-10-14 05:02:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:02:02,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-14 05:02:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:02,121 INFO L225 Difference]: With dead ends: 68511 [2024-10-14 05:02:02,121 INFO L226 Difference]: Without dead ends: 61949 [2024-10-14 05:02:02,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:02:02,139 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8094 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8094 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:02,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8094 Valid, 3853 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:02:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61949 states. [2024-10-14 05:02:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61949 to 37649. [2024-10-14 05:02:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37649 states, 37647 states have (on average 1.4463038223497224) internal successors, (54449), 37648 states have internal predecessors, (54449), 0 states have call successors, (0), 0 states 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 05:02:03,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37649 states to 37649 states and 54449 transitions. [2024-10-14 05:02:03,809 INFO L78 Accepts]: Start accepts. Automaton has 37649 states and 54449 transitions. Word has length 86 [2024-10-14 05:02:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:03,810 INFO L471 AbstractCegarLoop]: Abstraction has 37649 states and 54449 transitions. [2024-10-14 05:02:03,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:02:03,810 INFO L276 IsEmpty]: Start isEmpty. Operand 37649 states and 54449 transitions. [2024-10-14 05:02:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:02:03,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:03,813 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:03,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 05:02:03,814 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:03,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1804275272, now seen corresponding path program 1 times [2024-10-14 05:02:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350196450] [2024-10-14 05:02:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:03,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:04,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 05:02:04,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350196450] [2024-10-14 05:02:04,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350196450] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:04,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:04,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:02:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108472979] [2024-10-14 05:02:04,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:04,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:02:04,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:04,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:02:04,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:02:04,012 INFO L87 Difference]: Start difference. First operand 37649 states and 54449 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 05:02:05,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:05,353 INFO L93 Difference]: Finished difference Result 75071 states and 108920 transitions. [2024-10-14 05:02:05,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:02:05,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 86 [2024-10-14 05:02:05,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:05,465 INFO L225 Difference]: With dead ends: 75071 [2024-10-14 05:02:05,466 INFO L226 Difference]: Without dead ends: 68509 [2024-10-14 05:02:05,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:02:05,492 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8030 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8030 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:05,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8030 Valid, 4006 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:02:05,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68509 states. [2024-10-14 05:02:06,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68509 to 44209. [2024-10-14 05:02:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44209 states, 44207 states have (on average 1.4452236071210443) internal successors, (63889), 44208 states have internal predecessors, (63889), 0 states have call successors, (0), 0 states 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 05:02:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44209 states to 44209 states and 63889 transitions. [2024-10-14 05:02:07,036 INFO L78 Accepts]: Start accepts. Automaton has 44209 states and 63889 transitions. Word has length 86 [2024-10-14 05:02:07,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:07,038 INFO L471 AbstractCegarLoop]: Abstraction has 44209 states and 63889 transitions. [2024-10-14 05:02:07,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 05:02:07,038 INFO L276 IsEmpty]: Start isEmpty. Operand 44209 states and 63889 transitions. [2024-10-14 05:02:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-14 05:02:07,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:07,044 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:07,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 05:02:07,045 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:07,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:07,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1740095646, now seen corresponding path program 1 times [2024-10-14 05:02:07,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:07,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750348452] [2024-10-14 05:02:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:07,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:07,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:07,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750348452] [2024-10-14 05:02:07,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750348452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:07,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:07,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:07,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394034325] [2024-10-14 05:02:07,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:07,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:07,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:07,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:07,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:07,146 INFO L87 Difference]: Start difference. First operand 44209 states and 63889 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 05:02:10,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:10,859 INFO L93 Difference]: Finished difference Result 47215 states and 68816 transitions. [2024-10-14 05:02:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:10,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-10-14 05:02:10,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:10,921 INFO L225 Difference]: With dead ends: 47215 [2024-10-14 05:02:10,921 INFO L226 Difference]: Without dead ends: 45711 [2024-10-14 05:02:10,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:10,934 INFO L432 NwaCegarLoop]: 1269 mSDtfsCounter, 753 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 3098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:10,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1398 Invalid, 3098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-14 05:02:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45711 states. [2024-10-14 05:02:11,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45711 to 45711. [2024-10-14 05:02:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45711 states, 45709 states have (on average 1.4449014417291999) internal successors, (66045), 45710 states have internal predecessors, (66045), 0 states have call successors, (0), 0 states 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 05:02:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45711 states to 45711 states and 66045 transitions. [2024-10-14 05:02:12,067 INFO L78 Accepts]: Start accepts. Automaton has 45711 states and 66045 transitions. Word has length 86 [2024-10-14 05:02:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:12,068 INFO L471 AbstractCegarLoop]: Abstraction has 45711 states and 66045 transitions. [2024-10-14 05:02:12,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 05:02:12,068 INFO L276 IsEmpty]: Start isEmpty. Operand 45711 states and 66045 transitions. [2024-10-14 05:02:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 05:02:12,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:12,072 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:12,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 05:02:12,073 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:12,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:12,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1799324112, now seen corresponding path program 1 times [2024-10-14 05:02:12,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:12,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291737137] [2024-10-14 05:02:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:12,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:12,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291737137] [2024-10-14 05:02:12,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291737137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:12,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:12,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:12,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539840885] [2024-10-14 05:02:12,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:12,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:12,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:12,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:12,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:12,190 INFO L87 Difference]: Start difference. First operand 45711 states and 66045 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 05:02:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:13,187 INFO L93 Difference]: Finished difference Result 75688 states and 109749 transitions. [2024-10-14 05:02:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:13,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-10-14 05:02:13,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:13,238 INFO L225 Difference]: With dead ends: 75688 [2024-10-14 05:02:13,239 INFO L226 Difference]: Without dead ends: 33030 [2024-10-14 05:02:13,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:13,276 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 58 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:13,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3152 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:02:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33030 states. [2024-10-14 05:02:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33030 to 33028. [2024-10-14 05:02:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33028 states, 33026 states have (on average 1.452007509235148) internal successors, (47954), 33027 states have internal predecessors, (47954), 0 states have call successors, (0), 0 states 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 05:02:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33028 states to 33028 states and 47954 transitions. [2024-10-14 05:02:14,253 INFO L78 Accepts]: Start accepts. Automaton has 33028 states and 47954 transitions. Word has length 88 [2024-10-14 05:02:14,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:14,253 INFO L471 AbstractCegarLoop]: Abstraction has 33028 states and 47954 transitions. [2024-10-14 05:02:14,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 05:02:14,253 INFO L276 IsEmpty]: Start isEmpty. Operand 33028 states and 47954 transitions. [2024-10-14 05:02:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 05:02:14,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:14,256 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:14,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 05:02:14,256 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:14,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:14,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1059885715, now seen corresponding path program 1 times [2024-10-14 05:02:14,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:14,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212867305] [2024-10-14 05:02:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:14,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:14,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 05:02:14,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:14,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212867305] [2024-10-14 05:02:14,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212867305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:14,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:14,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 05:02:14,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591608409] [2024-10-14 05:02:14,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:14,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 05:02:14,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:14,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 05:02:14,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 05:02:14,439 INFO L87 Difference]: Start difference. First operand 33028 states and 47954 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 05:02:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:15,754 INFO L93 Difference]: Finished difference Result 60690 states and 88281 transitions. [2024-10-14 05:02:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 05:02:15,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 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 88 [2024-10-14 05:02:15,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:15,821 INFO L225 Difference]: With dead ends: 60690 [2024-10-14 05:02:15,822 INFO L226 Difference]: Without dead ends: 56080 [2024-10-14 05:02:15,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-14 05:02:15,838 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 8040 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8040 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:15,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8040 Valid, 3949 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:02:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56080 states. [2024-10-14 05:02:16,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56080 to 37636. [2024-10-14 05:02:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37636 states, 37634 states have (on average 1.4510814688845193) internal successors, (54610), 37635 states have internal predecessors, (54610), 0 states have call successors, (0), 0 states 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 05:02:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37636 states to 37636 states and 54610 transitions. [2024-10-14 05:02:17,043 INFO L78 Accepts]: Start accepts. Automaton has 37636 states and 54610 transitions. Word has length 88 [2024-10-14 05:02:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:17,043 INFO L471 AbstractCegarLoop]: Abstraction has 37636 states and 54610 transitions. [2024-10-14 05:02:17,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 05:02:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 37636 states and 54610 transitions. [2024-10-14 05:02:17,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 05:02:17,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:17,048 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:17,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 05:02:17,048 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:17,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:17,049 INFO L85 PathProgramCache]: Analyzing trace with hash -192668114, now seen corresponding path program 1 times [2024-10-14 05:02:17,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:17,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190099181] [2024-10-14 05:02:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:17,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:17,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190099181] [2024-10-14 05:02:17,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190099181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:17,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:17,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:17,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040695987] [2024-10-14 05:02:17,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:17,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:17,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:17,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:17,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:17,173 INFO L87 Difference]: Start difference. First operand 37636 states and 54610 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 05:02:17,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:17,940 INFO L93 Difference]: Finished difference Result 54920 states and 79572 transitions. [2024-10-14 05:02:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:17,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-14 05:02:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:17,974 INFO L225 Difference]: With dead ends: 54920 [2024-10-14 05:02:17,974 INFO L226 Difference]: Without dead ends: 20358 [2024-10-14 05:02:17,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:17,995 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 53 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:17,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3137 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:02:18,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20358 states. [2024-10-14 05:02:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20358 to 20356. [2024-10-14 05:02:18,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20356 states, 20354 states have (on average 1.4449248305001474) internal successors, (29410), 20355 states have internal predecessors, (29410), 0 states have call successors, (0), 0 states 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 05:02:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20356 states to 20356 states and 29410 transitions. [2024-10-14 05:02:18,552 INFO L78 Accepts]: Start accepts. Automaton has 20356 states and 29410 transitions. Word has length 89 [2024-10-14 05:02:18,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:18,552 INFO L471 AbstractCegarLoop]: Abstraction has 20356 states and 29410 transitions. [2024-10-14 05:02:18,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 05:02:18,552 INFO L276 IsEmpty]: Start isEmpty. Operand 20356 states and 29410 transitions. [2024-10-14 05:02:18,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 05:02:18,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:18,554 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:18,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 05:02:18,555 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:18,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash -72525939, now seen corresponding path program 1 times [2024-10-14 05:02:18,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:18,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020413970] [2024-10-14 05:02:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:18,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:18,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:18,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020413970] [2024-10-14 05:02:18,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020413970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:18,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:18,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:02:18,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954473357] [2024-10-14 05:02:18,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:18,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:18,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:18,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:18,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:18,633 INFO L87 Difference]: Start difference. First operand 20356 states and 29410 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 05:02:21,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:21,597 INFO L93 Difference]: Finished difference Result 26368 states and 38650 transitions. [2024-10-14 05:02:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-14 05:02:21,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:21,621 INFO L225 Difference]: With dead ends: 26368 [2024-10-14 05:02:21,621 INFO L226 Difference]: Without dead ends: 23362 [2024-10-14 05:02:21,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:21,629 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 850 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:21,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 620 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 05:02:21,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23362 states. [2024-10-14 05:02:22,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23362 to 23360. [2024-10-14 05:02:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23360 states, 23358 states have (on average 1.4124068841510404) internal successors, (32991), 23359 states have internal predecessors, (32991), 0 states have call successors, (0), 0 states 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 05:02:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23360 states to 23360 states and 32991 transitions. [2024-10-14 05:02:22,330 INFO L78 Accepts]: Start accepts. Automaton has 23360 states and 32991 transitions. Word has length 89 [2024-10-14 05:02:22,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:22,330 INFO L471 AbstractCegarLoop]: Abstraction has 23360 states and 32991 transitions. [2024-10-14 05:02:22,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 05:02:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 23360 states and 32991 transitions. [2024-10-14 05:02:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 05:02:22,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:22,333 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:22,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 05:02:22,334 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:22,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash 855162280, now seen corresponding path program 1 times [2024-10-14 05:02:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024625222] [2024-10-14 05:02:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:22,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:22,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024625222] [2024-10-14 05:02:22,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024625222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:22,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:22,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:02:22,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075269193] [2024-10-14 05:02:22,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:22,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:22,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:22,417 INFO L87 Difference]: Start difference. First operand 23360 states and 32991 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 05:02:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:25,422 INFO L93 Difference]: Finished difference Result 35380 states and 49393 transitions. [2024-10-14 05:02:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:25,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-10-14 05:02:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:25,455 INFO L225 Difference]: With dead ends: 35380 [2024-10-14 05:02:25,455 INFO L226 Difference]: Without dead ends: 29370 [2024-10-14 05:02:25,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:25,468 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 1039 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:25,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 715 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 05:02:25,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29370 states. [2024-10-14 05:02:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29370 to 29368. [2024-10-14 05:02:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29368 states, 29366 states have (on average 1.3677382006401961) internal successors, (40165), 29367 states have internal predecessors, (40165), 0 states have call successors, (0), 0 states 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 05:02:26,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29368 states to 29368 states and 40165 transitions. [2024-10-14 05:02:26,081 INFO L78 Accepts]: Start accepts. Automaton has 29368 states and 40165 transitions. Word has length 90 [2024-10-14 05:02:26,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:26,081 INFO L471 AbstractCegarLoop]: Abstraction has 29368 states and 40165 transitions. [2024-10-14 05:02:26,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 05:02:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 29368 states and 40165 transitions. [2024-10-14 05:02:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:02:26,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:26,084 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:26,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 05:02:26,085 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:26,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash -251569188, now seen corresponding path program 1 times [2024-10-14 05:02:26,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:26,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632236185] [2024-10-14 05:02:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:26,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:26,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:26,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632236185] [2024-10-14 05:02:26,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632236185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:26,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:26,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:26,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358999980] [2024-10-14 05:02:26,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:26,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:26,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:26,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:26,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:26,172 INFO L87 Difference]: Start difference. First operand 29368 states and 40165 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 05:02:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:26,476 INFO L93 Difference]: Finished difference Result 38012 states and 52527 transitions. [2024-10-14 05:02:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-10-14 05:02:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:26,499 INFO L225 Difference]: With dead ends: 38012 [2024-10-14 05:02:26,500 INFO L226 Difference]: Without dead ends: 20730 [2024-10-14 05:02:26,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:26,512 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 50 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:26,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3122 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:02:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20730 states. [2024-10-14 05:02:26,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20730 to 20728. [2024-10-14 05:02:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20728 states, 20726 states have (on average 1.3357618450255717) internal successors, (27685), 20727 states have internal predecessors, (27685), 0 states have call successors, (0), 0 states 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 05:02:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20728 states to 20728 states and 27685 transitions. [2024-10-14 05:02:26,806 INFO L78 Accepts]: Start accepts. Automaton has 20728 states and 27685 transitions. Word has length 91 [2024-10-14 05:02:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:26,806 INFO L471 AbstractCegarLoop]: Abstraction has 20728 states and 27685 transitions. [2024-10-14 05:02:26,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 05:02:26,806 INFO L276 IsEmpty]: Start isEmpty. Operand 20728 states and 27685 transitions. [2024-10-14 05:02:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 05:02:26,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:26,808 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:26,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 05:02:26,809 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:26,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:26,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1008841974, now seen corresponding path program 1 times [2024-10-14 05:02:26,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:26,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677781687] [2024-10-14 05:02:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:26,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:26,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677781687] [2024-10-14 05:02:26,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677781687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:26,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:26,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:26,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455730705] [2024-10-14 05:02:26,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:26,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:26,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:26,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:26,911 INFO L87 Difference]: Start difference. First operand 20728 states and 27685 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 05:02:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:27,087 INFO L93 Difference]: Finished difference Result 25052 states and 33807 transitions. [2024-10-14 05:02:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:27,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-10-14 05:02:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:27,109 INFO L225 Difference]: With dead ends: 25052 [2024-10-14 05:02:27,109 INFO L226 Difference]: Without dead ends: 16410 [2024-10-14 05:02:27,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:27,121 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 47 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:27,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:02:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16410 states. [2024-10-14 05:02:27,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16410 to 16408. [2024-10-14 05:02:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16408 states, 16406 states have (on average 1.3108009264903084) internal successors, (21505), 16407 states have internal predecessors, (21505), 0 states have call successors, (0), 0 states 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 05:02:27,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16408 states to 16408 states and 21505 transitions. [2024-10-14 05:02:27,483 INFO L78 Accepts]: Start accepts. Automaton has 16408 states and 21505 transitions. Word has length 93 [2024-10-14 05:02:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:27,484 INFO L471 AbstractCegarLoop]: Abstraction has 16408 states and 21505 transitions. [2024-10-14 05:02:27,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 05:02:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 16408 states and 21505 transitions. [2024-10-14 05:02:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 05:02:27,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:27,485 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:27,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 05:02:27,486 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:27,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash -2134258760, now seen corresponding path program 1 times [2024-10-14 05:02:27,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:27,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529820911] [2024-10-14 05:02:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:27,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529820911] [2024-10-14 05:02:27,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529820911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:27,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:27,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:27,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706236205] [2024-10-14 05:02:27,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:27,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:27,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:27,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:27,574 INFO L87 Difference]: Start difference. First operand 16408 states and 21505 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 05:02:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:27,689 INFO L93 Difference]: Finished difference Result 18572 states and 24537 transitions. [2024-10-14 05:02:27,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:27,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-10-14 05:02:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:27,708 INFO L225 Difference]: With dead ends: 18572 [2024-10-14 05:02:27,708 INFO L226 Difference]: Without dead ends: 14250 [2024-10-14 05:02:27,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:27,715 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 44 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:27,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3092 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:02:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14250 states. [2024-10-14 05:02:27,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14250 to 14248. [2024-10-14 05:02:27,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14248 states, 14246 states have (on average 1.2947494033412887) internal successors, (18445), 14247 states have internal predecessors, (18445), 0 states have call successors, (0), 0 states 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 05:02:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14248 states to 14248 states and 18445 transitions. [2024-10-14 05:02:27,871 INFO L78 Accepts]: Start accepts. Automaton has 14248 states and 18445 transitions. Word has length 95 [2024-10-14 05:02:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:27,872 INFO L471 AbstractCegarLoop]: Abstraction has 14248 states and 18445 transitions. [2024-10-14 05:02:27,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 05:02:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 14248 states and 18445 transitions. [2024-10-14 05:02:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-14 05:02:27,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:27,873 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:27,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 05:02:27,874 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:27,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:27,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1081426458, now seen corresponding path program 1 times [2024-10-14 05:02:27,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:27,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616458028] [2024-10-14 05:02:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:27,958 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:27,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:27,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616458028] [2024-10-14 05:02:27,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616458028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:02:27,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:02:27,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:02:27,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408777549] [2024-10-14 05:02:27,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:02:27,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:02:27,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:27,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:02:27,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:27,961 INFO L87 Difference]: Start difference. First operand 14248 states and 18445 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 05:02:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:28,091 INFO L93 Difference]: Finished difference Result 15332 states and 19947 transitions. [2024-10-14 05:02:28,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:02:28,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-10-14 05:02:28,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:28,110 INFO L225 Difference]: With dead ends: 15332 [2024-10-14 05:02:28,110 INFO L226 Difference]: Without dead ends: 13170 [2024-10-14 05:02:28,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:02:28,115 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 41 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:28,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3077 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:02:28,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13170 states. [2024-10-14 05:02:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13170 to 13168. [2024-10-14 05:02:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13168 states, 13166 states have (on average 1.2858878930578763) internal successors, (16930), 13167 states have internal predecessors, (16930), 0 states have call successors, (0), 0 states 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 05:02:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13168 states to 13168 states and 16930 transitions. [2024-10-14 05:02:28,251 INFO L78 Accepts]: Start accepts. Automaton has 13168 states and 16930 transitions. Word has length 97 [2024-10-14 05:02:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:28,252 INFO L471 AbstractCegarLoop]: Abstraction has 13168 states and 16930 transitions. [2024-10-14 05:02:28,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 05:02:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 13168 states and 16930 transitions. [2024-10-14 05:02:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 05:02:28,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:28,253 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:28,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 05:02:28,253 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:28,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:28,254 INFO L85 PathProgramCache]: Analyzing trace with hash -905969260, now seen corresponding path program 1 times [2024-10-14 05:02:28,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:28,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421520878] [2024-10-14 05:02:28,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:28,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:28,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421520878] [2024-10-14 05:02:28,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421520878] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:02:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536085624] [2024-10-14 05:02:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:28,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:02:28,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:02:28,687 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 05:02:28,689 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 05:02:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:28,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 05:02:28,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:02:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:29,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:02:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:30,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536085624] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:02:30,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:02:30,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-10-14 05:02:30,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918231971] [2024-10-14 05:02:30,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:02:30,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-14 05:02:30,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:30,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-14 05:02:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-10-14 05:02:30,778 INFO L87 Difference]: Start difference. First operand 13168 states and 16930 transitions. Second operand has 25 states, 25 states have (on average 10.8) internal successors, (270), 24 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 05:02:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:32,406 INFO L93 Difference]: Finished difference Result 17682 states and 23147 transitions. [2024-10-14 05:02:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-14 05:02:32,407 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.8) internal successors, (270), 24 states have internal predecessors, (270), 0 states have call successors, (0), 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 99 [2024-10-14 05:02:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:32,428 INFO L225 Difference]: With dead ends: 17682 [2024-10-14 05:02:32,428 INFO L226 Difference]: Without dead ends: 16600 [2024-10-14 05:02:32,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=588, Invalid=2274, Unknown=0, NotChecked=0, Total=2862 [2024-10-14 05:02:32,437 INFO L432 NwaCegarLoop]: 1507 mSDtfsCounter, 20962 mSDsluCounter, 5022 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20962 SdHoareTripleChecker+Valid, 6529 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:32,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20962 Valid, 6529 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 05:02:32,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16600 states. [2024-10-14 05:02:32,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16600 to 16528. [2024-10-14 05:02:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16528 states, 16526 states have (on average 1.2976521844366453) internal successors, (21445), 16527 states have internal predecessors, (21445), 0 states have call successors, (0), 0 states 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 05:02:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16528 states to 16528 states and 21445 transitions. [2024-10-14 05:02:32,733 INFO L78 Accepts]: Start accepts. Automaton has 16528 states and 21445 transitions. Word has length 99 [2024-10-14 05:02:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:32,734 INFO L471 AbstractCegarLoop]: Abstraction has 16528 states and 21445 transitions. [2024-10-14 05:02:32,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.8) internal successors, (270), 24 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 05:02:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 16528 states and 21445 transitions. [2024-10-14 05:02:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 05:02:32,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:32,736 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:32,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 05:02:32,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-14 05:02:32,941 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:32,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:32,942 INFO L85 PathProgramCache]: Analyzing trace with hash 472492477, now seen corresponding path program 1 times [2024-10-14 05:02:32,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:32,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134169639] [2024-10-14 05:02:32,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:34,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:34,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134169639] [2024-10-14 05:02:34,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134169639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:02:34,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326928968] [2024-10-14 05:02:34,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:34,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:02:34,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:02:34,401 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 05:02:34,402 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 05:02:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:34,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 05:02:34,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:02:35,086 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:35,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:02:35,825 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:35,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326928968] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:02:35,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:02:35,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-10-14 05:02:35,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409058768] [2024-10-14 05:02:35,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:02:35,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 05:02:35,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:35,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 05:02:35,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650 [2024-10-14 05:02:35,828 INFO L87 Difference]: Start difference. First operand 16528 states and 21445 transitions. Second operand has 26 states, 26 states have (on average 9.807692307692308) internal successors, (255), 25 states have internal predecessors, (255), 0 states have call successors, (0), 0 states 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 05:02:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:36,519 INFO L93 Difference]: Finished difference Result 25774 states and 33988 transitions. [2024-10-14 05:02:36,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 05:02:36,520 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.807692307692308) internal successors, (255), 25 states have internal predecessors, (255), 0 states have call successors, (0), 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 100 [2024-10-14 05:02:36,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:36,547 INFO L225 Difference]: With dead ends: 25774 [2024-10-14 05:02:36,547 INFO L226 Difference]: Without dead ends: 21332 [2024-10-14 05:02:36,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=917, Unknown=0, NotChecked=0, Total=1190 [2024-10-14 05:02:36,559 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 12570 mSDsluCounter, 4925 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12570 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:36,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12570 Valid, 6446 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 05:02:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21332 states. [2024-10-14 05:02:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21332 to 21208. [2024-10-14 05:02:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21208 states, 21206 states have (on average 1.3026973498066585) internal successors, (27625), 21207 states have internal predecessors, (27625), 0 states have call successors, (0), 0 states 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 05:02:36,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21208 states to 21208 states and 27625 transitions. [2024-10-14 05:02:36,918 INFO L78 Accepts]: Start accepts. Automaton has 21208 states and 27625 transitions. Word has length 100 [2024-10-14 05:02:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:02:36,919 INFO L471 AbstractCegarLoop]: Abstraction has 21208 states and 27625 transitions. [2024-10-14 05:02:36,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.807692307692308) internal successors, (255), 25 states have internal predecessors, (255), 0 states have call successors, (0), 0 states 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 05:02:36,919 INFO L276 IsEmpty]: Start isEmpty. Operand 21208 states and 27625 transitions. [2024-10-14 05:02:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 05:02:36,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:02:36,920 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 05:02:36,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 05:02:37,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:02:37,121 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:02:37,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:02:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash 391414082, now seen corresponding path program 1 times [2024-10-14 05:02:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:02:37,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305917779] [2024-10-14 05:02:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:02:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:38,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:02:38,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305917779] [2024-10-14 05:02:38,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305917779] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 05:02:38,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331597373] [2024-10-14 05:02:38,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:02:38,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 05:02:38,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:02:38,290 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 05:02:38,292 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 05:02:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:02:38,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 05:02:38,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 05:02:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:38,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 05:02:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:02:39,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331597373] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 05:02:39,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 05:02:39,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-10-14 05:02:39,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686738897] [2024-10-14 05:02:39,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 05:02:39,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-14 05:02:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:02:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-14 05:02:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-10-14 05:02:39,668 INFO L87 Difference]: Start difference. First operand 21208 states and 27625 transitions. Second operand has 29 states, 29 states have (on average 9.689655172413794) internal successors, (281), 28 states have internal predecessors, (281), 0 states have call successors, (0), 0 states 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 05:02:44,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:02:44,281 INFO L93 Difference]: Finished difference Result 66582 states and 88712 transitions. [2024-10-14 05:02:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-14 05:02:44,282 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.689655172413794) internal successors, (281), 28 states have internal predecessors, (281), 0 states have call successors, (0), 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 101 [2024-10-14 05:02:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:02:44,347 INFO L225 Difference]: With dead ends: 66582 [2024-10-14 05:02:44,347 INFO L226 Difference]: Without dead ends: 57460 [2024-10-14 05:02:44,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1084, Invalid=4028, Unknown=0, NotChecked=0, Total=5112 [2024-10-14 05:02:44,372 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 23511 mSDsluCounter, 7013 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23511 SdHoareTripleChecker+Valid, 8562 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 05:02:44,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23511 Valid, 8562 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 05:02:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57460 states.