./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.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 24a2674686e3cd976907355f3a5c851b85884bd28355ffc3fa271cccc21387fd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:42:29,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:42:29,370 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:42:29,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:42:29,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:42:29,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:42:29,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:42:29,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:42:29,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:42:29,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:42:29,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:42:29,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:42:29,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:42:29,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:42:29,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:42:29,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:42:29,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:42:29,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:42:29,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:42:29,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:42:29,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:42:29,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:42:29,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:42:29,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:42:29,433 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:42:29,433 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:42:29,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:42:29,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:42:29,434 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:42:29,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:42:29,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:42:29,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:42:29,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:42:29,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:42:29,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:42:29,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:42:29,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:42:29,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:42:29,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:42:29,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:42:29,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:42:29,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:42:29,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24a2674686e3cd976907355f3a5c851b85884bd28355ffc3fa271cccc21387fd [2024-11-16 09:42:29,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:42:29,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:42:29,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:42:29,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:42:29,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:42:29,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-16 09:42:31,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:42:31,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:42:31,622 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-16 09:42:31,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b675d40cb/733f5e598254459684b0549efe54e543/FLAGf9af632f2 [2024-11-16 09:42:31,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b675d40cb/733f5e598254459684b0549efe54e543 [2024-11-16 09:42:31,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:42:31,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:42:31,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:42:31,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:42:31,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:42:31,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:42:31" (1/1) ... [2024-11-16 09:42:31,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:31, skipping insertion in model container [2024-11-16 09:42:31,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:42:31" (1/1) ... [2024-11-16 09:42:31,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:42:32,266 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[11742,11755] [2024-11-16 09:42:32,365 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[17297,17310] [2024-11-16 09:42:33,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:42:33,058 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:42:33,088 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[11742,11755] [2024-11-16 09:42:33,096 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c[17297,17310] [2024-11-16 09:42:33,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:42:33,498 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:42:33,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33 WrapperNode [2024-11-16 09:42:33,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:42:33,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:42:33,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:42:33,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:42:33,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:33,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:33,921 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5093 [2024-11-16 09:42:33,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:42:33,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:42:33,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:42:33,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:42:33,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:33,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,178 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 09:42:34,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,343 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:42:34,490 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:42:34,490 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:42:34,491 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:42:34,492 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (1/1) ... [2024-11-16 09:42:34,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:42:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:34,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 09:42:34,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 09:42:34,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:42:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:42:34,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:42:34,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:42:34,713 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:42:34,715 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:42:38,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2128: havoc calculate_output_#t~ret37#1; [2024-11-16 09:42:38,914 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3607: havoc calculate_output2_#t~ret38#1; [2024-11-16 09:42:38,915 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5097: havoc calculate_output3_#t~ret39#1; [2024-11-16 09:42:39,119 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-16 09:42:39,119 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:42:39,152 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:42:39,153 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:42:39,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:42:39 BoogieIcfgContainer [2024-11-16 09:42:39,153 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:42:39,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:42:39,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:42:39,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:42:39,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:42:31" (1/3) ... [2024-11-16 09:42:39,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce9a91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:42:39, skipping insertion in model container [2024-11-16 09:42:39,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:42:33" (2/3) ... [2024-11-16 09:42:39,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce9a91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:42:39, skipping insertion in model container [2024-11-16 09:42:39,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:42:39" (3/3) ... [2024-11-16 09:42:39,166 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-16 09:42:39,182 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:42:39,182 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:42:39,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:42:39,295 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;@6f1cce8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:42:39,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:42:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 906 states, 903 states have (on average 1.8981173864894796) internal successors, (1714), 905 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:39,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:42:39,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:39,317 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] [2024-11-16 09:42:39,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:39,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:39,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1666129978, now seen corresponding path program 1 times [2024-11-16 09:42:39,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:39,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317686785] [2024-11-16 09:42:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:39,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:39,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317686785] [2024-11-16 09:42:39,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317686785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:39,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:39,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:42:39,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645500057] [2024-11-16 09:42:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:39,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:42:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:39,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:42:39,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:42:39,661 INFO L87 Difference]: Start difference. First operand has 906 states, 903 states have (on average 1.8981173864894796) internal successors, (1714), 905 states have internal predecessors, (1714), 0 states have call successors, (0), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:39,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:39,759 INFO L93 Difference]: Finished difference Result 1771 states and 3354 transitions. [2024-11-16 09:42:39,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:42:39,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 09:42:39,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:39,784 INFO L225 Difference]: With dead ends: 1771 [2024-11-16 09:42:39,785 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 09:42:39,790 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 [2024-11-16 09:42:39,793 INFO L432 NwaCegarLoop]: 1643 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:39,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:39,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 09:42:39,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-11-16 09:42:39,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 836 states have (on average 1.888755980861244) internal successors, (1579), 837 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1579 transitions. [2024-11-16 09:42:39,887 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1579 transitions. Word has length 26 [2024-11-16 09:42:39,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:39,888 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1579 transitions. [2024-11-16 09:42:39,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:39,888 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1579 transitions. [2024-11-16 09:42:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 09:42:39,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:39,891 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] [2024-11-16 09:42:39,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:42:39,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:39,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:39,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1257305753, now seen corresponding path program 1 times [2024-11-16 09:42:39,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:39,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057246523] [2024-11-16 09:42:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:39,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:40,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057246523] [2024-11-16 09:42:40,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057246523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:40,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:40,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:42:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100914388] [2024-11-16 09:42:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:40,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:42:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:42:40,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:42:40,150 INFO L87 Difference]: Start difference. First operand 838 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:40,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:40,263 INFO L93 Difference]: Finished difference Result 887 states and 1653 transitions. [2024-11-16 09:42:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:42:40,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-16 09:42:40,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:40,268 INFO L225 Difference]: With dead ends: 887 [2024-11-16 09:42:40,269 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 09:42:40,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:42:40,271 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 4695 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:40,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6272 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 09:42:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-11-16 09:42:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 836 states have (on average 1.8516746411483254) internal successors, (1548), 837 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1548 transitions. [2024-11-16 09:42:40,296 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1548 transitions. Word has length 26 [2024-11-16 09:42:40,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:40,297 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1548 transitions. [2024-11-16 09:42:40,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1548 transitions. [2024-11-16 09:42:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:42:40,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:40,299 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] [2024-11-16 09:42:40,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:42:40,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:40,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1499292071, now seen corresponding path program 1 times [2024-11-16 09:42:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:40,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537357869] [2024-11-16 09:42:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:40,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:40,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:40,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537357869] [2024-11-16 09:42:40,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537357869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:40,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:40,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:40,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023072765] [2024-11-16 09:42:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:40,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:42:40,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:40,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:42:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:42:40,537 INFO L87 Difference]: Start difference. First operand 838 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:46,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:46,140 INFO L93 Difference]: Finished difference Result 3097 states and 5861 transitions. [2024-11-16 09:42:46,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:42:46,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-16 09:42:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:46,153 INFO L225 Difference]: With dead ends: 3097 [2024-11-16 09:42:46,153 INFO L226 Difference]: Without dead ends: 2342 [2024-11-16 09:42:46,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:42:46,156 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 2433 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:46,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 807 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-16 09:42:46,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-16 09:42:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 2342. [2024-11-16 09:42:46,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 2340 states have (on average 1.5658119658119658) internal successors, (3664), 2341 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3664 transitions. [2024-11-16 09:42:46,207 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 3664 transitions. Word has length 50 [2024-11-16 09:42:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:46,207 INFO L471 AbstractCegarLoop]: Abstraction has 2342 states and 3664 transitions. [2024-11-16 09:42:46,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 3664 transitions. [2024-11-16 09:42:46,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 09:42:46,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:46,211 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] [2024-11-16 09:42:46,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:42:46,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:46,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2143625797, now seen corresponding path program 1 times [2024-11-16 09:42:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376238330] [2024-11-16 09:42:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:46,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:46,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:46,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376238330] [2024-11-16 09:42:46,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376238330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:46,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:46,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90361043] [2024-11-16 09:42:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:46,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:46,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:46,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:46,388 INFO L87 Difference]: Start difference. First operand 2342 states and 3664 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:46,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:46,623 INFO L93 Difference]: Finished difference Result 2792 states and 4364 transitions. [2024-11-16 09:42:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:42:46,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 09:42:46,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:46,633 INFO L225 Difference]: With dead ends: 2792 [2024-11-16 09:42:46,633 INFO L226 Difference]: Without dead ends: 2747 [2024-11-16 09:42:46,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-16 09:42:46,638 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 7986 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7986 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:46,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7986 Valid, 2698 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:46,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2024-11-16 09:42:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2384. [2024-11-16 09:42:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5659109991603695) internal successors, (3730), 2383 states have internal predecessors, (3730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3730 transitions. [2024-11-16 09:42:46,687 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3730 transitions. Word has length 56 [2024-11-16 09:42:46,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:46,689 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3730 transitions. [2024-11-16 09:42:46,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:46,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3730 transitions. [2024-11-16 09:42:46,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 09:42:46,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:46,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:46,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:42:46,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:46,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:46,694 INFO L85 PathProgramCache]: Analyzing trace with hash -445695587, now seen corresponding path program 1 times [2024-11-16 09:42:46,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:46,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134215211] [2024-11-16 09:42:46,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:46,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:47,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:47,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134215211] [2024-11-16 09:42:47,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134215211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:47,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:47,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:47,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914675527] [2024-11-16 09:42:47,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:47,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:47,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:47,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:47,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:47,007 INFO L87 Difference]: Start difference. First operand 2384 states and 3730 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:47,184 INFO L93 Difference]: Finished difference Result 2474 states and 3868 transitions. [2024-11-16 09:42:47,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:47,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-16 09:42:47,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:47,192 INFO L225 Difference]: With dead ends: 2474 [2024-11-16 09:42:47,193 INFO L226 Difference]: Without dead ends: 2387 [2024-11-16 09:42:47,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-16 09:42:47,195 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 5980 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5980 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:47,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5980 Valid, 1806 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2024-11-16 09:42:47,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2384. [2024-11-16 09:42:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 2382 states have (on average 1.5654911838790933) internal successors, (3729), 2383 states have internal predecessors, (3729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3729 transitions. [2024-11-16 09:42:47,238 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3729 transitions. Word has length 58 [2024-11-16 09:42:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:47,238 INFO L471 AbstractCegarLoop]: Abstraction has 2384 states and 3729 transitions. [2024-11-16 09:42:47,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3729 transitions. [2024-11-16 09:42:47,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 09:42:47,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:47,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:47,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:42:47,241 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:47,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash 792157896, now seen corresponding path program 1 times [2024-11-16 09:42:47,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:47,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818850184] [2024-11-16 09:42:47,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:47,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:47,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:47,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818850184] [2024-11-16 09:42:47,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818850184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:47,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:47,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:47,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145144221] [2024-11-16 09:42:47,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:47,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:47,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:47,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:47,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:47,338 INFO L87 Difference]: Start difference. First operand 2384 states and 3729 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:47,377 INFO L93 Difference]: Finished difference Result 2546 states and 3979 transitions. [2024-11-16 09:42:47,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:47,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-16 09:42:47,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:47,388 INFO L225 Difference]: With dead ends: 2546 [2024-11-16 09:42:47,388 INFO L226 Difference]: Without dead ends: 2459 [2024-11-16 09:42:47,389 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 [2024-11-16 09:42:47,392 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 1486 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1610 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 [2024-11-16 09:42:47,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1610 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-16 09:42:47,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2456. [2024-11-16 09:42:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 2454 states have (on average 1.5643846780766095) internal successors, (3839), 2455 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3839 transitions. [2024-11-16 09:42:47,438 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3839 transitions. Word has length 59 [2024-11-16 09:42:47,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:47,439 INFO L471 AbstractCegarLoop]: Abstraction has 2456 states and 3839 transitions. [2024-11-16 09:42:47,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3839 transitions. [2024-11-16 09:42:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:47,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:47,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:47,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:42:47,440 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:47,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash -771995553, now seen corresponding path program 1 times [2024-11-16 09:42:47,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:47,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430056469] [2024-11-16 09:42:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:47,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:47,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:47,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:47,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430056469] [2024-11-16 09:42:47,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430056469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:47,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:47,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:47,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658927477] [2024-11-16 09:42:47,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:47,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:47,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:47,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:47,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:47,512 INFO L87 Difference]: Start difference. First operand 2456 states and 3839 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:47,545 INFO L93 Difference]: Finished difference Result 2758 states and 4301 transitions. [2024-11-16 09:42:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:47,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:47,555 INFO L225 Difference]: With dead ends: 2758 [2024-11-16 09:42:47,556 INFO L226 Difference]: Without dead ends: 2599 [2024-11-16 09:42:47,557 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 [2024-11-16 09:42:47,558 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 1498 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:47,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-16 09:42:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2596. [2024-11-16 09:42:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2594 states have (on average 1.561295296838859) internal successors, (4050), 2595 states have internal predecessors, (4050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 4050 transitions. [2024-11-16 09:42:47,658 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 4050 transitions. Word has length 60 [2024-11-16 09:42:47,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:47,658 INFO L471 AbstractCegarLoop]: Abstraction has 2596 states and 4050 transitions. [2024-11-16 09:42:47,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 4050 transitions. [2024-11-16 09:42:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:47,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:47,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:47,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:42:47,660 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:47,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:47,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1773405281, now seen corresponding path program 1 times [2024-11-16 09:42:47,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:47,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338676120] [2024-11-16 09:42:47,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:47,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338676120] [2024-11-16 09:42:47,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338676120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:47,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:47,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255922822] [2024-11-16 09:42:47,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:47,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:47,731 INFO L87 Difference]: Start difference. First operand 2596 states and 4050 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:47,769 INFO L93 Difference]: Finished difference Result 3162 states and 4906 transitions. [2024-11-16 09:42:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:47,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:47,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:47,779 INFO L225 Difference]: With dead ends: 3162 [2024-11-16 09:42:47,779 INFO L226 Difference]: Without dead ends: 2863 [2024-11-16 09:42:47,781 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 [2024-11-16 09:42:47,782 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 1496 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:47,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:47,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2024-11-16 09:42:47,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2860. [2024-11-16 09:42:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2858 states have (on average 1.5535339398180545) internal successors, (4440), 2859 states have internal predecessors, (4440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4440 transitions. [2024-11-16 09:42:47,841 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4440 transitions. Word has length 60 [2024-11-16 09:42:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:47,842 INFO L471 AbstractCegarLoop]: Abstraction has 2860 states and 4440 transitions. [2024-11-16 09:42:47,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4440 transitions. [2024-11-16 09:42:47,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:47,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:47,843 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] [2024-11-16 09:42:47,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:42:47,843 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:47,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1787855137, now seen corresponding path program 1 times [2024-11-16 09:42:47,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:47,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165813808] [2024-11-16 09:42:47,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:47,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:47,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:47,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165813808] [2024-11-16 09:42:47,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165813808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:47,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:47,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:47,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613031825] [2024-11-16 09:42:47,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:47,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:47,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:47,908 INFO L87 Difference]: Start difference. First operand 2860 states and 4440 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:47,952 INFO L93 Difference]: Finished difference Result 3922 states and 6020 transitions. [2024-11-16 09:42:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:47,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:47,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:47,967 INFO L225 Difference]: With dead ends: 3922 [2024-11-16 09:42:47,967 INFO L226 Difference]: Without dead ends: 3359 [2024-11-16 09:42:47,969 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 [2024-11-16 09:42:47,971 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 1494 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:47,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2024-11-16 09:42:48,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3356. [2024-11-16 09:42:48,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3354 states have (on average 1.5372689326177698) internal successors, (5156), 3355 states have internal predecessors, (5156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 5156 transitions. [2024-11-16 09:42:48,046 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 5156 transitions. Word has length 60 [2024-11-16 09:42:48,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:48,046 INFO L471 AbstractCegarLoop]: Abstraction has 3356 states and 5156 transitions. [2024-11-16 09:42:48,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 5156 transitions. [2024-11-16 09:42:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:48,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:48,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:48,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:42:48,048 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:48,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:48,048 INFO L85 PathProgramCache]: Analyzing trace with hash 303747615, now seen corresponding path program 1 times [2024-11-16 09:42:48,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:48,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909821154] [2024-11-16 09:42:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:48,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:48,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:48,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909821154] [2024-11-16 09:42:48,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909821154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:48,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:48,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:48,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238584491] [2024-11-16 09:42:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:48,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:48,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:48,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:48,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:48,117 INFO L87 Difference]: Start difference. First operand 3356 states and 5156 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:48,178 INFO L93 Difference]: Finished difference Result 5346 states and 8056 transitions. [2024-11-16 09:42:48,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:48,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:48,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:48,194 INFO L225 Difference]: With dead ends: 5346 [2024-11-16 09:42:48,194 INFO L226 Difference]: Without dead ends: 4287 [2024-11-16 09:42:48,196 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 [2024-11-16 09:42:48,197 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 1492 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:48,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:48,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2024-11-16 09:42:48,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 4284. [2024-11-16 09:42:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4282 states have (on average 1.508640822045773) internal successors, (6460), 4283 states have internal predecessors, (6460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 6460 transitions. [2024-11-16 09:42:48,303 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 6460 transitions. Word has length 60 [2024-11-16 09:42:48,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:48,303 INFO L471 AbstractCegarLoop]: Abstraction has 4284 states and 6460 transitions. [2024-11-16 09:42:48,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 6460 transitions. [2024-11-16 09:42:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:48,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:48,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:48,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:42:48,305 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:48,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:48,306 INFO L85 PathProgramCache]: Analyzing trace with hash -220529440, now seen corresponding path program 1 times [2024-11-16 09:42:48,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:48,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332138195] [2024-11-16 09:42:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:48,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:48,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:48,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332138195] [2024-11-16 09:42:48,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332138195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:48,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:48,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:42:48,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694650935] [2024-11-16 09:42:48,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:48,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:42:48,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:48,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:42:48,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:42:48,515 INFO L87 Difference]: Start difference. First operand 4284 states and 6460 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:48,683 INFO L93 Difference]: Finished difference Result 4383 states and 6590 transitions. [2024-11-16 09:42:48,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:42:48,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:48,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:48,695 INFO L225 Difference]: With dead ends: 4383 [2024-11-16 09:42:48,696 INFO L226 Difference]: Without dead ends: 4380 [2024-11-16 09:42:48,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:42:48,698 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 0 mSDsluCounter, 9239 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10781 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:48,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10781 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2024-11-16 09:42:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4380. [2024-11-16 09:42:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 4378 states have (on average 1.4938328003654637) internal successors, (6540), 4379 states have internal predecessors, (6540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 6540 transitions. [2024-11-16 09:42:48,823 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 6540 transitions. Word has length 60 [2024-11-16 09:42:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:48,823 INFO L471 AbstractCegarLoop]: Abstraction has 4380 states and 6540 transitions. [2024-11-16 09:42:48,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 6540 transitions. [2024-11-16 09:42:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-16 09:42:48,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:48,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:42:48,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:42:48,825 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:48,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash -489921249, now seen corresponding path program 1 times [2024-11-16 09:42:48,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:48,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231750051] [2024-11-16 09:42:48,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:48,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:48,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:48,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231750051] [2024-11-16 09:42:48,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231750051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:48,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:48,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468928655] [2024-11-16 09:42:48,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:48,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:48,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:48,890 INFO L87 Difference]: Start difference. First operand 4380 states and 6540 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:48,986 INFO L93 Difference]: Finished difference Result 6629 states and 9748 transitions. [2024-11-16 09:42:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-16 09:42:48,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:48,997 INFO L225 Difference]: With dead ends: 6629 [2024-11-16 09:42:48,998 INFO L226 Difference]: Without dead ends: 5442 [2024-11-16 09:42:49,001 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 [2024-11-16 09:42:49,002 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1500 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:49,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5442 states. [2024-11-16 09:42:49,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5442 to 5439. [2024-11-16 09:42:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5437 states have (on average 1.4712157439764577) internal successors, (7999), 5438 states have internal predecessors, (7999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7999 transitions. [2024-11-16 09:42:49,161 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7999 transitions. Word has length 60 [2024-11-16 09:42:49,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:49,161 INFO L471 AbstractCegarLoop]: Abstraction has 5439 states and 7999 transitions. [2024-11-16 09:42:49,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:49,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7999 transitions. [2024-11-16 09:42:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:49,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:49,165 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] [2024-11-16 09:42:49,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:42:49,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:49,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:49,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1750020549, now seen corresponding path program 1 times [2024-11-16 09:42:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:49,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406636550] [2024-11-16 09:42:49,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:49,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:42:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406636550] [2024-11-16 09:42:49,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406636550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:49,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:49,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476482166] [2024-11-16 09:42:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:49,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:49,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:49,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:49,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:49,369 INFO L87 Difference]: Start difference. First operand 5439 states and 7999 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 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) [2024-11-16 09:42:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:49,809 INFO L93 Difference]: Finished difference Result 21825 states and 30923 transitions. [2024-11-16 09:42:49,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:49,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 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 81 [2024-11-16 09:42:49,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:49,844 INFO L225 Difference]: With dead ends: 21825 [2024-11-16 09:42:49,844 INFO L226 Difference]: Without dead ends: 18686 [2024-11-16 09:42:49,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:49,855 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 6339 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:49,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3641 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:49,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18686 states. [2024-11-16 09:42:50,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18686 to 8575. [2024-11-16 09:42:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8575 states, 8573 states have (on average 1.4406858742563864) internal successors, (12351), 8574 states have internal predecessors, (12351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8575 states to 8575 states and 12351 transitions. [2024-11-16 09:42:50,236 INFO L78 Accepts]: Start accepts. Automaton has 8575 states and 12351 transitions. Word has length 81 [2024-11-16 09:42:50,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:50,237 INFO L471 AbstractCegarLoop]: Abstraction has 8575 states and 12351 transitions. [2024-11-16 09:42:50,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 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) [2024-11-16 09:42:50,237 INFO L276 IsEmpty]: Start isEmpty. Operand 8575 states and 12351 transitions. [2024-11-16 09:42:50,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:50,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:50,240 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] [2024-11-16 09:42:50,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:42:50,240 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:50,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:50,241 INFO L85 PathProgramCache]: Analyzing trace with hash 748610821, now seen corresponding path program 1 times [2024-11-16 09:42:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:50,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092980962] [2024-11-16 09:42:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:50,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:42:50,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:50,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092980962] [2024-11-16 09:42:50,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092980962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:50,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:50,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:50,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901352786] [2024-11-16 09:42:50,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:50,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:50,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:50,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:50,410 INFO L87 Difference]: Start difference. First operand 8575 states and 12351 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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) [2024-11-16 09:42:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:50,878 INFO L93 Difference]: Finished difference Result 24961 states and 35275 transitions. [2024-11-16 09:42:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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 81 [2024-11-16 09:42:50,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:50,917 INFO L225 Difference]: With dead ends: 24961 [2024-11-16 09:42:50,917 INFO L226 Difference]: Without dead ends: 21822 [2024-11-16 09:42:50,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:50,930 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 6358 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6358 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:50,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6358 Valid, 3596 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21822 states. [2024-11-16 09:42:51,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21822 to 13295. [2024-11-16 09:42:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13295 states, 13293 states have (on average 1.4178138870081998) internal successors, (18847), 13294 states have internal predecessors, (18847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:51,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13295 states to 13295 states and 18847 transitions. [2024-11-16 09:42:51,394 INFO L78 Accepts]: Start accepts. Automaton has 13295 states and 18847 transitions. Word has length 81 [2024-11-16 09:42:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:51,394 INFO L471 AbstractCegarLoop]: Abstraction has 13295 states and 18847 transitions. [2024-11-16 09:42:51,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 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) [2024-11-16 09:42:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 13295 states and 18847 transitions. [2024-11-16 09:42:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:51,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:51,397 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] [2024-11-16 09:42:51,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:42:51,397 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:51,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:51,398 INFO L85 PathProgramCache]: Analyzing trace with hash 734160965, now seen corresponding path program 1 times [2024-11-16 09:42:51,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:51,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372251118] [2024-11-16 09:42:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:51,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:51,550 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:42:51,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:51,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372251118] [2024-11-16 09:42:51,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372251118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:51,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:51,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:51,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601230045] [2024-11-16 09:42:51,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:51,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:51,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:51,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:51,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:51,553 INFO L87 Difference]: Start difference. First operand 13295 states and 18847 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:52,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:52,081 INFO L93 Difference]: Finished difference Result 28097 states and 39627 transitions. [2024-11-16 09:42:52,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:52,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 09:42:52,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:52,132 INFO L225 Difference]: With dead ends: 28097 [2024-11-16 09:42:52,132 INFO L226 Difference]: Without dead ends: 24958 [2024-11-16 09:42:52,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:52,147 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 6403 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6403 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:52,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6403 Valid, 3570 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:52,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24958 states. [2024-11-16 09:42:52,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24958 to 16431. [2024-11-16 09:42:52,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16431 states, 16429 states have (on average 1.412076206707651) internal successors, (23199), 16430 states have internal predecessors, (23199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16431 states to 16431 states and 23199 transitions. [2024-11-16 09:42:52,692 INFO L78 Accepts]: Start accepts. Automaton has 16431 states and 23199 transitions. Word has length 81 [2024-11-16 09:42:52,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:52,692 INFO L471 AbstractCegarLoop]: Abstraction has 16431 states and 23199 transitions. [2024-11-16 09:42:52,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 16431 states and 23199 transitions. [2024-11-16 09:42:52,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:52,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:52,695 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] [2024-11-16 09:42:52,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:42:52,696 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:52,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1469203579, now seen corresponding path program 1 times [2024-11-16 09:42:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:52,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177021763] [2024-11-16 09:42:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:52,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:42:52,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:52,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177021763] [2024-11-16 09:42:52,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177021763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:52,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:52,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:52,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181207007] [2024-11-16 09:42:52,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:52,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:52,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:52,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:52,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:52,859 INFO L87 Difference]: Start difference. First operand 16431 states and 23199 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:53,522 INFO L93 Difference]: Finished difference Result 31233 states and 43979 transitions. [2024-11-16 09:42:53,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:53,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 09:42:53,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:53,580 INFO L225 Difference]: With dead ends: 31233 [2024-11-16 09:42:53,580 INFO L226 Difference]: Without dead ends: 28094 [2024-11-16 09:42:53,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:53,592 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 6346 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6346 SdHoareTripleChecker+Valid, 3659 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:53,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6346 Valid, 3659 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28094 states. [2024-11-16 09:42:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28094 to 19567. [2024-11-16 09:42:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19567 states, 19565 states have (on average 1.4081778686429849) internal successors, (27551), 19566 states have internal predecessors, (27551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19567 states to 19567 states and 27551 transitions. [2024-11-16 09:42:54,227 INFO L78 Accepts]: Start accepts. Automaton has 19567 states and 27551 transitions. Word has length 81 [2024-11-16 09:42:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:54,228 INFO L471 AbstractCegarLoop]: Abstraction has 19567 states and 27551 transitions. [2024-11-16 09:42:54,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 19567 states and 27551 transitions. [2024-11-16 09:42:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 09:42:54,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:54,232 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] [2024-11-16 09:42:54,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:42:54,232 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:54,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2032094853, now seen corresponding path program 1 times [2024-11-16 09:42:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:54,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045941365] [2024-11-16 09:42:54,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:42:54,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:54,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045941365] [2024-11-16 09:42:54,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045941365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:54,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:54,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:42:54,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890396726] [2024-11-16 09:42:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:54,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:42:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:42:54,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:42:54,429 INFO L87 Difference]: Start difference. First operand 19567 states and 27551 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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) [2024-11-16 09:42:54,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:54,964 INFO L93 Difference]: Finished difference Result 32577 states and 45867 transitions. [2024-11-16 09:42:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:42:54,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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 81 [2024-11-16 09:42:54,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:55,021 INFO L225 Difference]: With dead ends: 32577 [2024-11-16 09:42:55,022 INFO L226 Difference]: Without dead ends: 30334 [2024-11-16 09:42:55,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:42:55,036 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 6329 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6329 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:55,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6329 Valid, 3765 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:42:55,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30334 states. [2024-11-16 09:42:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30334 to 21807. [2024-11-16 09:42:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21807 states, 21805 states have (on average 1.407337766567301) internal successors, (30687), 21806 states have internal predecessors, (30687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:55,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21807 states to 21807 states and 30687 transitions. [2024-11-16 09:42:55,688 INFO L78 Accepts]: Start accepts. Automaton has 21807 states and 30687 transitions. Word has length 81 [2024-11-16 09:42:55,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:55,689 INFO L471 AbstractCegarLoop]: Abstraction has 21807 states and 30687 transitions. [2024-11-16 09:42:55,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 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) [2024-11-16 09:42:55,689 INFO L276 IsEmpty]: Start isEmpty. Operand 21807 states and 30687 transitions. [2024-11-16 09:42:55,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:42:55,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:55,696 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] [2024-11-16 09:42:55,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:42:55,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:55,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash 431928103, now seen corresponding path program 1 times [2024-11-16 09:42:55,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:55,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61370665] [2024-11-16 09:42:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:55,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:55,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:55,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61370665] [2024-11-16 09:42:55,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61370665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:55,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:55,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:55,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881968298] [2024-11-16 09:42:55,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:55,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:55,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:55,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:55,795 INFO L87 Difference]: Start difference. First operand 21807 states and 30687 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-11-16 09:42:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:56,105 INFO L93 Difference]: Finished difference Result 36394 states and 51097 transitions. [2024-11-16 09:42:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 83 [2024-11-16 09:42:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:56,129 INFO L225 Difference]: With dead ends: 36394 [2024-11-16 09:42:56,129 INFO L226 Difference]: Without dead ends: 16887 [2024-11-16 09:42:56,150 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 [2024-11-16 09:42:56,151 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 48 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:56,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3126 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:56,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2024-11-16 09:42:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 16877. [2024-11-16 09:42:56,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16877 states, 16875 states have (on average 1.4097185185185186) internal successors, (23789), 16876 states have internal predecessors, (23789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16877 states to 16877 states and 23789 transitions. [2024-11-16 09:42:56,632 INFO L78 Accepts]: Start accepts. Automaton has 16877 states and 23789 transitions. Word has length 83 [2024-11-16 09:42:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:56,632 INFO L471 AbstractCegarLoop]: Abstraction has 16877 states and 23789 transitions. [2024-11-16 09:42:56,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-11-16 09:42:56,632 INFO L276 IsEmpty]: Start isEmpty. Operand 16877 states and 23789 transitions. [2024-11-16 09:42:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 09:42:56,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:56,635 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] [2024-11-16 09:42:56,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:42:56,636 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:56,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:56,636 INFO L85 PathProgramCache]: Analyzing trace with hash 922394599, now seen corresponding path program 1 times [2024-11-16 09:42:56,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:56,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612365770] [2024-11-16 09:42:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:56,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:56,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:56,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612365770] [2024-11-16 09:42:56,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612365770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:56,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:56,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365532372] [2024-11-16 09:42:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:56,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:56,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:56,765 INFO L87 Difference]: Start difference. First operand 16877 states and 23789 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-11-16 09:42:56,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:56,934 INFO L93 Difference]: Finished difference Result 24163 states and 33881 transitions. [2024-11-16 09:42:56,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:56,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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 83 [2024-11-16 09:42:56,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:56,947 INFO L225 Difference]: With dead ends: 24163 [2024-11-16 09:42:56,948 INFO L226 Difference]: Without dead ends: 9600 [2024-11-16 09:42:56,963 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 [2024-11-16 09:42:56,963 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 43 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:56,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:56,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2024-11-16 09:42:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9597. [2024-11-16 09:42:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9597 states, 9595 states have (on average 1.4170922355393434) internal successors, (13597), 9596 states have internal predecessors, (13597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9597 states to 9597 states and 13597 transitions. [2024-11-16 09:42:57,220 INFO L78 Accepts]: Start accepts. Automaton has 9597 states and 13597 transitions. Word has length 83 [2024-11-16 09:42:57,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:57,220 INFO L471 AbstractCegarLoop]: Abstraction has 9597 states and 13597 transitions. [2024-11-16 09:42:57,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 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) [2024-11-16 09:42:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9597 states and 13597 transitions. [2024-11-16 09:42:57,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 09:42:57,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:57,222 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] [2024-11-16 09:42:57,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:42:57,223 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:57,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:57,223 INFO L85 PathProgramCache]: Analyzing trace with hash -297319383, now seen corresponding path program 1 times [2024-11-16 09:42:57,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:57,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981194130] [2024-11-16 09:42:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:57,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:57,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981194130] [2024-11-16 09:42:57,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981194130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:57,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:57,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555403603] [2024-11-16 09:42:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:57,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:57,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:57,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:57,312 INFO L87 Difference]: Start difference. First operand 9597 states and 13597 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:57,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:57,410 INFO L93 Difference]: Finished difference Result 13243 states and 18593 transitions. [2024-11-16 09:42:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:57,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-16 09:42:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:57,418 INFO L225 Difference]: With dead ends: 13243 [2024-11-16 09:42:57,418 INFO L226 Difference]: Without dead ends: 5960 [2024-11-16 09:42:57,425 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 [2024-11-16 09:42:57,425 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 38 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:57,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3096 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2024-11-16 09:42:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 5957. [2024-11-16 09:42:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5957 states, 5955 states have (on average 1.436272040302267) internal successors, (8553), 5956 states have internal predecessors, (8553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:57,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5957 states to 5957 states and 8553 transitions. [2024-11-16 09:42:57,537 INFO L78 Accepts]: Start accepts. Automaton has 5957 states and 8553 transitions. Word has length 85 [2024-11-16 09:42:57,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:57,538 INFO L471 AbstractCegarLoop]: Abstraction has 5957 states and 8553 transitions. [2024-11-16 09:42:57,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:57,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5957 states and 8553 transitions. [2024-11-16 09:42:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 09:42:57,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:57,540 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] [2024-11-16 09:42:57,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:42:57,540 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:57,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash 191522960, now seen corresponding path program 1 times [2024-11-16 09:42:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:57,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369506405] [2024-11-16 09:42:57,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:57,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:57,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:57,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369506405] [2024-11-16 09:42:57,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369506405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:57,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:57,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:57,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897083425] [2024-11-16 09:42:57,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:57,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:57,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:57,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:57,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:57,642 INFO L87 Difference]: Start difference. First operand 5957 states and 8553 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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) [2024-11-16 09:42:57,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:57,734 INFO L93 Difference]: Finished difference Result 7783 states and 11027 transitions. [2024-11-16 09:42:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:57,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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 87 [2024-11-16 09:42:57,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:57,740 INFO L225 Difference]: With dead ends: 7783 [2024-11-16 09:42:57,740 INFO L226 Difference]: Without dead ends: 4140 [2024-11-16 09:42:57,744 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 [2024-11-16 09:42:57,745 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 35 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:57,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3081 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:57,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2024-11-16 09:42:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4137. [2024-11-16 09:42:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 4135 states have (on average 1.4648125755743653) internal successors, (6057), 4136 states have internal predecessors, (6057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 6057 transitions. [2024-11-16 09:42:57,812 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 6057 transitions. Word has length 87 [2024-11-16 09:42:57,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:57,812 INFO L471 AbstractCegarLoop]: Abstraction has 4137 states and 6057 transitions. [2024-11-16 09:42:57,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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) [2024-11-16 09:42:57,812 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 6057 transitions. [2024-11-16 09:42:57,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-16 09:42:57,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:57,814 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] [2024-11-16 09:42:57,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:42:57,814 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:57,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:57,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1515941399, now seen corresponding path program 1 times [2024-11-16 09:42:57,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:57,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618520952] [2024-11-16 09:42:57,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:57,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:57,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:57,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618520952] [2024-11-16 09:42:57,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618520952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:42:57,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:42:57,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:42:57,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808891220] [2024-11-16 09:42:57,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:42:57,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:42:57,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:42:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:42:57,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:42:57,895 INFO L87 Difference]: Start difference. First operand 4137 states and 6057 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) [2024-11-16 09:42:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:42:57,934 INFO L93 Difference]: Finished difference Result 5053 states and 7283 transitions. [2024-11-16 09:42:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:42:57,934 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 [2024-11-16 09:42:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:42:57,939 INFO L225 Difference]: With dead ends: 5053 [2024-11-16 09:42:57,939 INFO L226 Difference]: Without dead ends: 3230 [2024-11-16 09:42:57,941 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 [2024-11-16 09:42:57,942 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 32 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:42:57,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3066 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:42:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2024-11-16 09:42:57,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 3227. [2024-11-16 09:42:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3225 states have (on average 1.4951937984496124) internal successors, (4822), 3226 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:42:57,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 4822 transitions. [2024-11-16 09:42:57,990 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 4822 transitions. Word has length 89 [2024-11-16 09:42:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:42:57,990 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 4822 transitions. [2024-11-16 09:42:57,990 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) [2024-11-16 09:42:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 4822 transitions. [2024-11-16 09:42:57,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-16 09:42:57,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:42:57,992 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] [2024-11-16 09:42:57,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:42:57,992 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:42:57,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:42:57,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1152435390, now seen corresponding path program 1 times [2024-11-16 09:42:57,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:42:57,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016495556] [2024-11-16 09:42:57,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:57,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:42:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:58,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:42:58,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016495556] [2024-11-16 09:42:58,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016495556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:42:58,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510909218] [2024-11-16 09:42:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:42:58,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:42:58,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:42:58,504 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) [2024-11-16 09:42:58,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 09:42:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:42:58,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 09:42:58,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:42:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:42:59,520 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:00,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510909218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:00,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-16 09:43:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313274357] [2024-11-16 09:43:00,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:00,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:43:00,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:00,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:43:00,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:43:00,877 INFO L87 Difference]: Start difference. First operand 3227 states and 4822 transitions. Second operand has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:04,063 INFO L93 Difference]: Finished difference Result 7304 states and 10106 transitions. [2024-11-16 09:43:04,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-16 09:43:04,064 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 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 [2024-11-16 09:43:04,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:04,073 INFO L225 Difference]: With dead ends: 7304 [2024-11-16 09:43:04,074 INFO L226 Difference]: Without dead ends: 6391 [2024-11-16 09:43:04,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=891, Invalid=3531, Unknown=0, NotChecked=0, Total=4422 [2024-11-16 09:43:04,078 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 18317 mSDsluCounter, 17139 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18317 SdHoareTripleChecker+Valid, 18647 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:04,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18317 Valid, 18647 Invalid, 1226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:43:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6391 states. [2024-11-16 09:43:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6391 to 5773. [2024-11-16 09:43:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5773 states, 5771 states have (on average 1.4044359729682898) internal successors, (8105), 5772 states have internal predecessors, (8105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5773 states to 5773 states and 8105 transitions. [2024-11-16 09:43:04,248 INFO L78 Accepts]: Start accepts. Automaton has 5773 states and 8105 transitions. Word has length 91 [2024-11-16 09:43:04,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:04,248 INFO L471 AbstractCegarLoop]: Abstraction has 5773 states and 8105 transitions. [2024-11-16 09:43:04,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.40625) internal successors, (237), 32 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:04,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5773 states and 8105 transitions. [2024-11-16 09:43:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 09:43:04,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:04,251 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] [2024-11-16 09:43:04,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 09:43:04,452 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,SelfDestructingSolverStorable22 [2024-11-16 09:43:04,452 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:04,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:04,453 INFO L85 PathProgramCache]: Analyzing trace with hash -220981848, now seen corresponding path program 1 times [2024-11-16 09:43:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:04,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336818035] [2024-11-16 09:43:04,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:04,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:05,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:05,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336818035] [2024-11-16 09:43:05,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336818035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:05,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675240540] [2024-11-16 09:43:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:05,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:05,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:05,004 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) [2024-11-16 09:43:05,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 09:43:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:05,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 09:43:05,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:05,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:06,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675240540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:06,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:06,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-16 09:43:06,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578249888] [2024-11-16 09:43:06,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:06,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:43:06,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:43:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:43:06,698 INFO L87 Difference]: Start difference. First operand 5773 states and 8105 transitions. Second operand has 32 states, 32 states have (on average 7.4375) internal successors, (238), 32 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:10,487 INFO L93 Difference]: Finished difference Result 34263 states and 44909 transitions. [2024-11-16 09:43:10,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-16 09:43:10,487 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.4375) internal successors, (238), 32 states have internal predecessors, (238), 0 states have call successors, (0), 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 92 [2024-11-16 09:43:10,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:10,518 INFO L225 Difference]: With dead ends: 34263 [2024-11-16 09:43:10,518 INFO L226 Difference]: Without dead ends: 30804 [2024-11-16 09:43:10,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2333 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1378, Invalid=6994, Unknown=0, NotChecked=0, Total=8372 [2024-11-16 09:43:10,531 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 17038 mSDsluCounter, 14948 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17038 SdHoareTripleChecker+Valid, 16506 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:10,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17038 Valid, 16506 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:43:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30804 states. [2024-11-16 09:43:11,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30804 to 15821. [2024-11-16 09:43:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15821 states, 15819 states have (on average 1.311650546810797) internal successors, (20749), 15820 states have internal predecessors, (20749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15821 states to 15821 states and 20749 transitions. [2024-11-16 09:43:11,045 INFO L78 Accepts]: Start accepts. Automaton has 15821 states and 20749 transitions. Word has length 92 [2024-11-16 09:43:11,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:11,045 INFO L471 AbstractCegarLoop]: Abstraction has 15821 states and 20749 transitions. [2024-11-16 09:43:11,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.4375) internal successors, (238), 32 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:11,045 INFO L276 IsEmpty]: Start isEmpty. Operand 15821 states and 20749 transitions. [2024-11-16 09:43:11,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 09:43:11,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:11,048 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] [2024-11-16 09:43:11,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:43:11,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-16 09:43:11,249 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:11,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:11,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1801100071, now seen corresponding path program 1 times [2024-11-16 09:43:11,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:11,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539605892] [2024-11-16 09:43:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:11,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:11,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:11,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539605892] [2024-11-16 09:43:11,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539605892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:11,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909776532] [2024-11-16 09:43:11,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:11,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:11,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:11,588 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) [2024-11-16 09:43:11,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 09:43:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:11,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:43:11,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:12,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:12,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909776532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:12,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:12,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-16 09:43:12,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749253683] [2024-11-16 09:43:12,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:12,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 09:43:12,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:12,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 09:43:12,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-16 09:43:12,757 INFO L87 Difference]: Start difference. First operand 15821 states and 20749 transitions. Second operand has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:13,628 INFO L93 Difference]: Finished difference Result 43894 states and 56611 transitions. [2024-11-16 09:43:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:43:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 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 [2024-11-16 09:43:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:13,660 INFO L225 Difference]: With dead ends: 43894 [2024-11-16 09:43:13,660 INFO L226 Difference]: Without dead ends: 30387 [2024-11-16 09:43:13,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:43:13,674 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 9086 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9086 SdHoareTripleChecker+Valid, 5087 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:13,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9086 Valid, 5087 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 09:43:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30387 states. [2024-11-16 09:43:14,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30387 to 30029. [2024-11-16 09:43:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30029 states, 30027 states have (on average 1.2792819795517367) internal successors, (38413), 30028 states have internal predecessors, (38413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:14,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30029 states to 30029 states and 38413 transitions. [2024-11-16 09:43:14,576 INFO L78 Accepts]: Start accepts. Automaton has 30029 states and 38413 transitions. Word has length 93 [2024-11-16 09:43:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:14,576 INFO L471 AbstractCegarLoop]: Abstraction has 30029 states and 38413 transitions. [2024-11-16 09:43:14,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:14,576 INFO L276 IsEmpty]: Start isEmpty. Operand 30029 states and 38413 transitions. [2024-11-16 09:43:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:43:14,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:14,581 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] [2024-11-16 09:43:14,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:43:14,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:14,782 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:14,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:14,782 INFO L85 PathProgramCache]: Analyzing trace with hash -470700893, now seen corresponding path program 1 times [2024-11-16 09:43:14,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:14,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487592726] [2024-11-16 09:43:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:15,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:15,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487592726] [2024-11-16 09:43:15,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487592726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458976405] [2024-11-16 09:43:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:15,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:15,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:15,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:43:15,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:43:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:15,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 09:43:15,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:16,550 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:17,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458976405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:17,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:17,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 32 [2024-11-16 09:43:17,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74927083] [2024-11-16 09:43:17,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:17,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:43:17,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:17,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:43:17,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:43:17,645 INFO L87 Difference]: Start difference. First operand 30029 states and 38413 transitions. Second operand has 32 states, 32 states have (on average 8.0625) internal successors, (258), 32 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:22,701 INFO L93 Difference]: Finished difference Result 65002 states and 82833 transitions. [2024-11-16 09:43:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-16 09:43:22,701 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.0625) internal successors, (258), 32 states have internal predecessors, (258), 0 states have call successors, (0), 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 94 [2024-11-16 09:43:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:22,754 INFO L225 Difference]: With dead ends: 65002 [2024-11-16 09:43:22,754 INFO L226 Difference]: Without dead ends: 49831 [2024-11-16 09:43:22,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2299 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1665, Invalid=6345, Unknown=0, NotChecked=0, Total=8010 [2024-11-16 09:43:22,772 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 13869 mSDsluCounter, 20081 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13869 SdHoareTripleChecker+Valid, 21602 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:22,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13869 Valid, 21602 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:43:22,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49831 states. [2024-11-16 09:43:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49831 to 24997. [2024-11-16 09:43:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24997 states, 24995 states have (on average 1.282616523304661) internal successors, (32059), 24996 states have internal predecessors, (32059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24997 states to 24997 states and 32059 transitions. [2024-11-16 09:43:23,934 INFO L78 Accepts]: Start accepts. Automaton has 24997 states and 32059 transitions. Word has length 94 [2024-11-16 09:43:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:23,934 INFO L471 AbstractCegarLoop]: Abstraction has 24997 states and 32059 transitions. [2024-11-16 09:43:23,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.0625) internal successors, (258), 32 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 24997 states and 32059 transitions. [2024-11-16 09:43:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 09:43:23,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:23,938 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] [2024-11-16 09:43:23,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 09:43:24,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 09:43:24,139 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:24,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1230569113, now seen corresponding path program 1 times [2024-11-16 09:43:24,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:24,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587582034] [2024-11-16 09:43:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:24,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:24,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:24,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587582034] [2024-11-16 09:43:24,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587582034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:24,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796959059] [2024-11-16 09:43:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:24,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:24,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:24,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:43:24,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 09:43:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:24,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-16 09:43:24,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:25,779 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:26,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796959059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:26,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:26,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31 [2024-11-16 09:43:26,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31705440] [2024-11-16 09:43:26,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:26,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-16 09:43:26,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:26,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-16 09:43:26,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:43:26,387 INFO L87 Difference]: Start difference. First operand 24997 states and 32059 transitions. Second operand has 31 states, 31 states have (on average 7.645161290322581) internal successors, (237), 31 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:28,658 INFO L93 Difference]: Finished difference Result 44935 states and 57191 transitions. [2024-11-16 09:43:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 09:43:28,659 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.645161290322581) internal successors, (237), 31 states have internal predecessors, (237), 0 states have call successors, (0), 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 [2024-11-16 09:43:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:28,696 INFO L225 Difference]: With dead ends: 44935 [2024-11-16 09:43:28,697 INFO L226 Difference]: Without dead ends: 34924 [2024-11-16 09:43:28,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=507, Invalid=2043, Unknown=0, NotChecked=0, Total=2550 [2024-11-16 09:43:28,711 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 16489 mSDsluCounter, 18446 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16489 SdHoareTripleChecker+Valid, 19981 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:43:28,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16489 Valid, 19981 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 09:43:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34924 states. [2024-11-16 09:43:29,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34924 to 21845. [2024-11-16 09:43:29,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21845 states, 21843 states have (on average 1.2877809824657784) internal successors, (28129), 21844 states have internal predecessors, (28129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21845 states to 21845 states and 28129 transitions. [2024-11-16 09:43:29,421 INFO L78 Accepts]: Start accepts. Automaton has 21845 states and 28129 transitions. Word has length 95 [2024-11-16 09:43:29,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:29,421 INFO L471 AbstractCegarLoop]: Abstraction has 21845 states and 28129 transitions. [2024-11-16 09:43:29,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.645161290322581) internal successors, (237), 31 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:43:29,422 INFO L276 IsEmpty]: Start isEmpty. Operand 21845 states and 28129 transitions. [2024-11-16 09:43:29,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:43:29,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:29,423 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, 1] [2024-11-16 09:43:29,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 09:43:29,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 09:43:29,624 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:29,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:29,624 INFO L85 PathProgramCache]: Analyzing trace with hash 903225191, now seen corresponding path program 1 times [2024-11-16 09:43:29,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:29,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445416814] [2024-11-16 09:43:29,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:29,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:43:32,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445416814] [2024-11-16 09:43:32,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445416814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:43:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136302258] [2024-11-16 09:43:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:32,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:43:32,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:32,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:43:32,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 09:43:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:32,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 09:43:32,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:43:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:43:32,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:43:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:43:32,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136302258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:43:32,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:43:32,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 6, 4] total 35 [2024-11-16 09:43:32,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103051972] [2024-11-16 09:43:32,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:43:32,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-16 09:43:32,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:32,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-16 09:43:32,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2024-11-16 09:43:32,631 INFO L87 Difference]: Start difference. First operand 21845 states and 28129 transitions. Second operand has 35 states, 35 states have (on average 7.571428571428571) internal successors, (265), 35 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)