./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label06.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 6ccc8126940cf3f46bcb3993cc3f2567a1d57b3d9eef9ad8f60ee950111ffdfc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:47:44,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:47:44,599 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:47:44,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:47:44,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:47:44,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:47:44,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:47:44,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:47:44,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:47:44,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:47:44,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:47:44,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:47:44,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:47:44,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:47:44,636 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:47:44,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:47:44,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:47:44,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:47:44,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:47:44,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:47:44,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:47:44,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:47:44,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:47:44,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:47:44,639 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:47:44,639 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:47:44,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:47:44,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:47:44,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:47:44,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:47:44,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:47:44,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:47:44,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:47:44,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:47:44,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:47:44,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:47:44,642 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:47:44,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:47:44,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:47:44,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:47:44,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:47:44,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:47:44,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ccc8126940cf3f46bcb3993cc3f2567a1d57b3d9eef9ad8f60ee950111ffdfc [2024-11-22 03:47:44,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:47:44,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:47:44,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:47:44,888 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:47:44,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:47:44,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label06.c [2024-11-22 03:47:46,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:47:46,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:47:46,696 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label06.c [2024-11-22 03:47:46,730 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be469b66c/06ec38dfe38f43e69e03caaada93f4ff/FLAG1a1669733 [2024-11-22 03:47:46,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be469b66c/06ec38dfe38f43e69e03caaada93f4ff [2024-11-22 03:47:46,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:47:46,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:47:46,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:47:46,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:47:46,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:47:46,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:47:46" (1/1) ... [2024-11-22 03:47:46,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54b2b86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:46, skipping insertion in model container [2024-11-22 03:47:46,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:47:46" (1/1) ... [2024-11-22 03:47:46,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:47:47,271 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.4.ufo.BOUNDED-8.pals+Problem12_label06.c[8616,8629] [2024-11-22 03:47:47,298 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.4.ufo.BOUNDED-8.pals+Problem12_label06.c[11433,11446] [2024-11-22 03:47:47,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:47:47,802 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:47:47,835 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.4.ufo.BOUNDED-8.pals+Problem12_label06.c[8616,8629] [2024-11-22 03:47:47,841 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.4.ufo.BOUNDED-8.pals+Problem12_label06.c[11433,11446] [2024-11-22 03:47:48,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:47:48,279 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:47:48,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48 WrapperNode [2024-11-22 03:47:48,279 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:47:48,280 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:47:48,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:47:48,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:47:48,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,580 INFO L138 Inliner]: procedures = 34, calls = 20, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 5039 [2024-11-22 03:47:48,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:47:48,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:47:48,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:47:48,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:47:48,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,774 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]. [2024-11-22 03:47:48,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:47:48,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:47:48,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:47:48,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:47:48,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (1/1) ... [2024-11-22 03:47:48,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:47:48,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:47:48,980 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) [2024-11-22 03:47:48,984 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 [2024-11-22 03:47:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:47:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:47:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:47:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:47:49,161 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:47:49,163 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:47:52,292 INFO L? ?]: Removed 737 outVars from TransFormulas that were not future-live. [2024-11-22 03:47:52,293 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:47:52,331 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:47:52,331 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 03:47:52,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:47:52 BoogieIcfgContainer [2024-11-22 03:47:52,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:47:52,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:47:52,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:47:52,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:47:52,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:47:46" (1/3) ... [2024-11-22 03:47:52,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@896bb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:47:52, skipping insertion in model container [2024-11-22 03:47:52,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:47:48" (2/3) ... [2024-11-22 03:47:52,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@896bb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:47:52, skipping insertion in model container [2024-11-22 03:47:52,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:47:52" (3/3) ... [2024-11-22 03:47:52,345 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals+Problem12_label06.c [2024-11-22 03:47:52,369 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:47:52,370 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 03:47:52,510 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:47:52,517 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;@3da5c933, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:47:52,518 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 03:47:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 885 states, 882 states have (on average 1.9058956916099774) internal successors, (1681), 884 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 03:47:52,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:52,532 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] [2024-11-22 03:47:52,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:52,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1141430702, now seen corresponding path program 1 times [2024-11-22 03:47:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026995342] [2024-11-22 03:47:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:52,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:52,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026995342] [2024-11-22 03:47:52,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026995342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:52,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:52,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:47:52,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583085933] [2024-11-22 03:47:52,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:52,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:47:52,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:52,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:47:52,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:47:52,765 INFO L87 Difference]: Start difference. First operand has 885 states, 882 states have (on average 1.9058956916099774) internal successors, (1681), 884 states have internal predecessors, (1681), 0 states have call successors, (0), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:52,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:52,831 INFO L93 Difference]: Finished difference Result 1741 states and 3308 transitions. [2024-11-22 03:47:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:47:52,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-22 03:47:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:52,856 INFO L225 Difference]: With dead ends: 1741 [2024-11-22 03:47:52,856 INFO L226 Difference]: Without dead ends: 819 [2024-11-22 03:47:52,863 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 [2024-11-22 03:47:52,866 INFO L432 NwaCegarLoop]: 1615 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, 1615 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 [2024-11-22 03:47:52,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-22 03:47:52,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2024-11-22 03:47:52,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 817 states have (on average 1.894736842105263) internal successors, (1548), 818 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) [2024-11-22 03:47:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1548 transitions. [2024-11-22 03:47:52,954 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1548 transitions. Word has length 22 [2024-11-22 03:47:52,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:52,954 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1548 transitions. [2024-11-22 03:47:52,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:52,955 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1548 transitions. [2024-11-22 03:47:52,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 03:47:52,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:52,956 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] [2024-11-22 03:47:52,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 03:47:52,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:52,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:52,957 INFO L85 PathProgramCache]: Analyzing trace with hash 120362348, now seen corresponding path program 1 times [2024-11-22 03:47:52,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:52,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151453544] [2024-11-22 03:47:52,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:52,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:53,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:53,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151453544] [2024-11-22 03:47:53,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151453544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:53,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:53,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:47:53,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707095262] [2024-11-22 03:47:53,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:53,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:47:53,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:53,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:47:53,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:47:53,172 INFO L87 Difference]: Start difference. First operand 819 states and 1548 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:53,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:53,264 INFO L93 Difference]: Finished difference Result 895 states and 1666 transitions. [2024-11-22 03:47:53,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:47:53,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-11-22 03:47:53,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:53,268 INFO L225 Difference]: With dead ends: 895 [2024-11-22 03:47:53,268 INFO L226 Difference]: Without dead ends: 855 [2024-11-22 03:47:53,269 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 [2024-11-22 03:47:53,269 INFO L432 NwaCegarLoop]: 1544 mSDtfsCounter, 56 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 6147 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:53,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 6147 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:47:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-22 03:47:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 819. [2024-11-22 03:47:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 817 states have (on average 1.8665850673194615) internal successors, (1525), 818 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1525 transitions. [2024-11-22 03:47:53,288 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1525 transitions. Word has length 22 [2024-11-22 03:47:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:53,288 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1525 transitions. [2024-11-22 03:47:53,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1525 transitions. [2024-11-22 03:47:53,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 03:47:53,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:53,290 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] [2024-11-22 03:47:53,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 03:47:53,290 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:53,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1481273845, now seen corresponding path program 1 times [2024-11-22 03:47:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:53,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113766171] [2024-11-22 03:47:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:53,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:53,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:53,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:53,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113766171] [2024-11-22 03:47:53,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113766171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:53,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:53,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 03:47:53,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238739838] [2024-11-22 03:47:53,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:53,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:47:53,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:53,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:47:53,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:53,361 INFO L87 Difference]: Start difference. First operand 819 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:56,186 INFO L93 Difference]: Finished difference Result 2323 states and 4398 transitions. [2024-11-22 03:47:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:47:56,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-22 03:47:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:56,195 INFO L225 Difference]: With dead ends: 2323 [2024-11-22 03:47:56,195 INFO L226 Difference]: Without dead ends: 1570 [2024-11-22 03:47:56,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:56,198 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 880 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:56,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 514 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-22 03:47:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-22 03:47:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2024-11-22 03:47:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1568 states have (on average 1.6275510204081634) internal successors, (2552), 1569 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2552 transitions. [2024-11-22 03:47:56,223 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2552 transitions. Word has length 24 [2024-11-22 03:47:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:56,223 INFO L471 AbstractCegarLoop]: Abstraction has 1570 states and 2552 transitions. [2024-11-22 03:47:56,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2552 transitions. [2024-11-22 03:47:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-22 03:47:56,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:56,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:56,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 03:47:56,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:56,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:56,227 INFO L85 PathProgramCache]: Analyzing trace with hash 550762215, now seen corresponding path program 1 times [2024-11-22 03:47:56,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:56,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603409030] [2024-11-22 03:47:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:56,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:56,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603409030] [2024-11-22 03:47:56,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603409030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:56,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:47:56,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744406639] [2024-11-22 03:47:56,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:56,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:47:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:56,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:47:56,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:47:56,347 INFO L87 Difference]: Start difference. First operand 1570 states and 2552 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:56,475 INFO L93 Difference]: Finished difference Result 1858 states and 3008 transitions. [2024-11-22 03:47:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 03:47:56,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-22 03:47:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:56,480 INFO L225 Difference]: With dead ends: 1858 [2024-11-22 03:47:56,480 INFO L226 Difference]: Without dead ends: 1822 [2024-11-22 03:47:56,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 03:47:56,482 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 6262 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6262 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:56,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6262 Valid, 2187 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:47:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2024-11-22 03:47:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1604. [2024-11-22 03:47:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1602 states have (on average 1.626716604244694) internal successors, (2606), 1603 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2606 transitions. [2024-11-22 03:47:56,507 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2606 transitions. Word has length 44 [2024-11-22 03:47:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:56,508 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2606 transitions. [2024-11-22 03:47:56,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2606 transitions. [2024-11-22 03:47:56,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 03:47:56,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:56,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:56,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 03:47:56,512 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:56,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:56,512 INFO L85 PathProgramCache]: Analyzing trace with hash -414187945, now seen corresponding path program 1 times [2024-11-22 03:47:56,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:56,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475009249] [2024-11-22 03:47:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:56,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:56,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:56,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475009249] [2024-11-22 03:47:56,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475009249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:56,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:56,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:47:56,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722485242] [2024-11-22 03:47:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:56,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:47:56,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:56,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:47:56,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:56,573 INFO L87 Difference]: Start difference. First operand 1604 states and 2606 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:56,601 INFO L93 Difference]: Finished difference Result 1733 states and 2809 transitions. [2024-11-22 03:47:56,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:47:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-22 03:47:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:56,607 INFO L225 Difference]: With dead ends: 1733 [2024-11-22 03:47:56,607 INFO L226 Difference]: Without dead ends: 1663 [2024-11-22 03:47:56,608 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 [2024-11-22 03:47:56,609 INFO L432 NwaCegarLoop]: 1523 mSDtfsCounter, 1474 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1575 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 [2024-11-22 03:47:56,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1575 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-22 03:47:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1661. [2024-11-22 03:47:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1659 states have (on average 1.623869801084991) internal successors, (2694), 1660 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2694 transitions. [2024-11-22 03:47:56,632 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2694 transitions. Word has length 46 [2024-11-22 03:47:56,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:56,634 INFO L471 AbstractCegarLoop]: Abstraction has 1661 states and 2694 transitions. [2024-11-22 03:47:56,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2694 transitions. [2024-11-22 03:47:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 03:47:56,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:56,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:56,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 03:47:56,637 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:56,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:56,637 INFO L85 PathProgramCache]: Analyzing trace with hash -347694433, now seen corresponding path program 1 times [2024-11-22 03:47:56,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:56,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730416971] [2024-11-22 03:47:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:56,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:56,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:56,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730416971] [2024-11-22 03:47:56,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730416971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:56,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:56,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:47:56,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335303915] [2024-11-22 03:47:56,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:56,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:47:56,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:56,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:47:56,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:47:56,811 INFO L87 Difference]: Start difference. First operand 1661 states and 2694 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:56,919 INFO L93 Difference]: Finished difference Result 1790 states and 2894 transitions. [2024-11-22 03:47:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:47:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-22 03:47:56,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:56,924 INFO L225 Difference]: With dead ends: 1790 [2024-11-22 03:47:56,925 INFO L226 Difference]: Without dead ends: 1663 [2024-11-22 03:47:56,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-22 03:47:56,926 INFO L432 NwaCegarLoop]: 1519 mSDtfsCounter, 4446 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4446 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:56,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4446 Valid, 1678 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:56,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-22 03:47:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1661. [2024-11-22 03:47:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1659 states have (on average 1.622664255575648) internal successors, (2692), 1660 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2692 transitions. [2024-11-22 03:47:56,953 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2692 transitions. Word has length 46 [2024-11-22 03:47:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:56,954 INFO L471 AbstractCegarLoop]: Abstraction has 1661 states and 2692 transitions. [2024-11-22 03:47:56,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2692 transitions. [2024-11-22 03:47:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-22 03:47:56,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:56,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:56,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 03:47:56,955 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:56,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:56,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1691651312, now seen corresponding path program 1 times [2024-11-22 03:47:56,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:56,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571177369] [2024-11-22 03:47:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:56,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:57,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:57,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571177369] [2024-11-22 03:47:57,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571177369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:57,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:57,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 03:47:57,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075313438] [2024-11-22 03:47:57,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:57,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 03:47:57,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 03:47:57,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 03:47:57,210 INFO L87 Difference]: Start difference. First operand 1661 states and 2692 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:57,243 INFO L93 Difference]: Finished difference Result 1669 states and 2701 transitions. [2024-11-22 03:47:57,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 03:47:57,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-22 03:47:57,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:57,248 INFO L225 Difference]: With dead ends: 1669 [2024-11-22 03:47:57,248 INFO L226 Difference]: Without dead ends: 1667 [2024-11-22 03:47:57,249 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 [2024-11-22 03:47:57,249 INFO L432 NwaCegarLoop]: 1522 mSDtfsCounter, 0 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:57,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6079 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2024-11-22 03:47:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1667. [2024-11-22 03:47:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1665 states have (on average 1.61981981981982) internal successors, (2697), 1666 states have internal predecessors, (2697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2697 transitions. [2024-11-22 03:47:57,276 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2697 transitions. Word has length 47 [2024-11-22 03:47:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:57,277 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2697 transitions. [2024-11-22 03:47:57,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2697 transitions. [2024-11-22 03:47:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 03:47:57,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:57,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:57,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 03:47:57,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:57,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1538886047, now seen corresponding path program 1 times [2024-11-22 03:47:57,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165796534] [2024-11-22 03:47:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:57,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:57,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:57,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165796534] [2024-11-22 03:47:57,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165796534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:57,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:57,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:47:57,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008410107] [2024-11-22 03:47:57,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:57,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:47:57,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:57,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:47:57,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:57,334 INFO L87 Difference]: Start difference. First operand 1667 states and 2697 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:57,367 INFO L93 Difference]: Finished difference Result 1813 states and 2918 transitions. [2024-11-22 03:47:57,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:47:57,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-22 03:47:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:57,373 INFO L225 Difference]: With dead ends: 1813 [2024-11-22 03:47:57,373 INFO L226 Difference]: Without dead ends: 1737 [2024-11-22 03:47:57,373 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 [2024-11-22 03:47:57,374 INFO L432 NwaCegarLoop]: 1567 mSDtfsCounter, 1486 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1625 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 [2024-11-22 03:47:57,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1625 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2024-11-22 03:47:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1735. [2024-11-22 03:47:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1733 states have (on average 1.6145412579342182) internal successors, (2798), 1734 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2798 transitions. [2024-11-22 03:47:57,401 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2798 transitions. Word has length 48 [2024-11-22 03:47:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:57,401 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2798 transitions. [2024-11-22 03:47:57,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2798 transitions. [2024-11-22 03:47:57,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 03:47:57,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:57,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:57,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 03:47:57,402 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:57,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:57,403 INFO L85 PathProgramCache]: Analyzing trace with hash 561679263, now seen corresponding path program 1 times [2024-11-22 03:47:57,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:57,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781429778] [2024-11-22 03:47:57,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:57,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:57,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781429778] [2024-11-22 03:47:57,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781429778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:57,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:57,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:47:57,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167456761] [2024-11-22 03:47:57,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:57,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:47:57,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:57,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:47:57,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:57,452 INFO L87 Difference]: Start difference. First operand 1735 states and 2798 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:57,476 INFO L93 Difference]: Finished difference Result 2109 states and 3358 transitions. [2024-11-22 03:47:57,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:47:57,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-22 03:47:57,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:57,481 INFO L225 Difference]: With dead ends: 2109 [2024-11-22 03:47:57,481 INFO L226 Difference]: Without dead ends: 1910 [2024-11-22 03:47:57,484 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 [2024-11-22 03:47:57,485 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 1482 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1625 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 [2024-11-22 03:47:57,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1625 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2024-11-22 03:47:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1908. [2024-11-22 03:47:57,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1906 states have (on average 1.6002098635886675) internal successors, (3050), 1907 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 3050 transitions. [2024-11-22 03:47:57,511 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 3050 transitions. Word has length 48 [2024-11-22 03:47:57,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:57,512 INFO L471 AbstractCegarLoop]: Abstraction has 1908 states and 3050 transitions. [2024-11-22 03:47:57,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 3050 transitions. [2024-11-22 03:47:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 03:47:57,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:57,513 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:57,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 03:47:57,513 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:57,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:57,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1952355169, now seen corresponding path program 1 times [2024-11-22 03:47:57,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:57,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121873660] [2024-11-22 03:47:57,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:57,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:57,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:57,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121873660] [2024-11-22 03:47:57,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121873660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:57,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:57,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:47:57,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707414657] [2024-11-22 03:47:57,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:57,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:47:57,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:47:57,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:57,562 INFO L87 Difference]: Start difference. First operand 1908 states and 3050 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:57,588 INFO L93 Difference]: Finished difference Result 2604 states and 4072 transitions. [2024-11-22 03:47:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:47:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-22 03:47:57,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:57,594 INFO L225 Difference]: With dead ends: 2604 [2024-11-22 03:47:57,594 INFO L226 Difference]: Without dead ends: 2232 [2024-11-22 03:47:57,595 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 [2024-11-22 03:47:57,595 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 1480 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1627 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 [2024-11-22 03:47:57,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1627 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2024-11-22 03:47:57,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2230. [2024-11-22 03:47:57,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2230 states, 2228 states have (on average 1.573608617594255) internal successors, (3506), 2229 states have internal predecessors, (3506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 3506 transitions. [2024-11-22 03:47:57,628 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 3506 transitions. Word has length 48 [2024-11-22 03:47:57,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:57,628 INFO L471 AbstractCegarLoop]: Abstraction has 2230 states and 3506 transitions. [2024-11-22 03:47:57,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 3506 transitions. [2024-11-22 03:47:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 03:47:57,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:57,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:47:57,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 03:47:57,629 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:57,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1517819233, now seen corresponding path program 1 times [2024-11-22 03:47:57,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:57,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046749549] [2024-11-22 03:47:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:57,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:57,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:47:57,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:57,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046749549] [2024-11-22 03:47:57,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046749549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:57,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:57,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:47:57,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395171864] [2024-11-22 03:47:57,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:57,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:47:57,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:57,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:47:57,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:47:57,667 INFO L87 Difference]: Start difference. First operand 2230 states and 3506 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:57,700 INFO L93 Difference]: Finished difference Result 3522 states and 5356 transitions. [2024-11-22 03:47:57,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:47:57,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-22 03:47:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:57,708 INFO L225 Difference]: With dead ends: 3522 [2024-11-22 03:47:57,708 INFO L226 Difference]: Without dead ends: 2828 [2024-11-22 03:47:57,710 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 [2024-11-22 03:47:57,710 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 1484 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1631 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 [2024-11-22 03:47:57,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1631 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:57,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2024-11-22 03:47:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2826. [2024-11-22 03:47:57,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2824 states have (on average 1.5304532577903682) internal successors, (4322), 2825 states have internal predecessors, (4322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 4322 transitions. [2024-11-22 03:47:57,760 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 4322 transitions. Word has length 48 [2024-11-22 03:47:57,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:57,761 INFO L471 AbstractCegarLoop]: Abstraction has 2826 states and 4322 transitions. [2024-11-22 03:47:57,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 4322 transitions. [2024-11-22 03:47:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:47:57,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:57,762 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] [2024-11-22 03:47:57,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 03:47:57,762 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:57,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash 879514788, now seen corresponding path program 1 times [2024-11-22 03:47:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264089345] [2024-11-22 03:47:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:47:57,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:57,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264089345] [2024-11-22 03:47:57,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264089345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:57,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:57,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:47:57,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159114303] [2024-11-22 03:47:57,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:57,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:47:57,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:57,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:47:57,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:47:57,868 INFO L87 Difference]: Start difference. First operand 2826 states and 4322 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:57,998 INFO L93 Difference]: Finished difference Result 7916 states and 11511 transitions. [2024-11-22 03:47:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:47:57,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-22 03:47:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:58,028 INFO L225 Difference]: With dead ends: 7916 [2024-11-22 03:47:58,028 INFO L226 Difference]: Without dead ends: 6986 [2024-11-22 03:47:58,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:47:58,035 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4645 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4645 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:58,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4645 Valid, 3320 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6986 states. [2024-11-22 03:47:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6986 to 3938. [2024-11-22 03:47:58,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3936 states have (on average 1.4923780487804879) internal successors, (5874), 3937 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5874 transitions. [2024-11-22 03:47:58,136 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5874 transitions. Word has length 65 [2024-11-22 03:47:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:58,136 INFO L471 AbstractCegarLoop]: Abstraction has 3938 states and 5874 transitions. [2024-11-22 03:47:58,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:58,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5874 transitions. [2024-11-22 03:47:58,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:47:58,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:58,137 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] [2024-11-22 03:47:58,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 03:47:58,138 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:58,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash -97691996, now seen corresponding path program 1 times [2024-11-22 03:47:58,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:58,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597535805] [2024-11-22 03:47:58,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 03:47:58,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:58,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597535805] [2024-11-22 03:47:58,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597535805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:58,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:58,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:47:58,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604329325] [2024-11-22 03:47:58,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:58,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:47:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:47:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:47:58,227 INFO L87 Difference]: Start difference. First operand 3938 states and 5874 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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) [2024-11-22 03:47:58,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:58,434 INFO L93 Difference]: Finished difference Result 9204 states and 13319 transitions. [2024-11-22 03:47:58,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:47:58,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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 65 [2024-11-22 03:47:58,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:58,447 INFO L225 Difference]: With dead ends: 9204 [2024-11-22 03:47:58,447 INFO L226 Difference]: Without dead ends: 7914 [2024-11-22 03:47:58,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:47:58,451 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4683 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:58,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 3323 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:58,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7914 states. [2024-11-22 03:47:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7914 to 5690. [2024-11-22 03:47:58,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5688 states have (on average 1.461673699015471) internal successors, (8314), 5689 states have internal predecessors, (8314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:58,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 8314 transitions. [2024-11-22 03:47:58,560 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 8314 transitions. Word has length 65 [2024-11-22 03:47:58,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:58,561 INFO L471 AbstractCegarLoop]: Abstraction has 5690 states and 8314 transitions. [2024-11-22 03:47:58,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 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) [2024-11-22 03:47:58,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 8314 transitions. [2024-11-22 03:47:58,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:47:58,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:58,562 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] [2024-11-22 03:47:58,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 03:47:58,562 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:58,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:58,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1683240868, now seen corresponding path program 1 times [2024-11-22 03:47:58,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:58,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549642298] [2024-11-22 03:47:58,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:58,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:58,645 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 03:47:58,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549642298] [2024-11-22 03:47:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549642298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:58,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:58,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:47:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881991902] [2024-11-22 03:47:58,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:58,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:47:58,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:58,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:47:58,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:47:58,647 INFO L87 Difference]: Start difference. First operand 5690 states and 8314 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2024-11-22 03:47:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:58,818 INFO L93 Difference]: Finished difference Result 10492 states and 15119 transitions. [2024-11-22 03:47:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:47:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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 65 [2024-11-22 03:47:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:58,833 INFO L225 Difference]: With dead ends: 10492 [2024-11-22 03:47:58,833 INFO L226 Difference]: Without dead ends: 9202 [2024-11-22 03:47:58,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:47:58,839 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 4677 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4677 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:58,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4677 Valid, 3339 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:47:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2024-11-22 03:47:58,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 6978. [2024-11-22 03:47:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6978 states, 6976 states have (on average 1.4498279816513762) internal successors, (10114), 6977 states have internal predecessors, (10114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:58,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6978 states to 6978 states and 10114 transitions. [2024-11-22 03:47:58,982 INFO L78 Accepts]: Start accepts. Automaton has 6978 states and 10114 transitions. Word has length 65 [2024-11-22 03:47:58,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:47:58,982 INFO L471 AbstractCegarLoop]: Abstraction has 6978 states and 10114 transitions. [2024-11-22 03:47:58,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2024-11-22 03:47:58,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6978 states and 10114 transitions. [2024-11-22 03:47:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 03:47:58,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:47:58,983 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] [2024-11-22 03:47:58,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 03:47:58,984 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:47:58,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:47:58,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2117776804, now seen corresponding path program 1 times [2024-11-22 03:47:58,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:47:58,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621399747] [2024-11-22 03:47:58,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:47:58,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:47:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:47:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 03:47:59,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:47:59,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621399747] [2024-11-22 03:47:59,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621399747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:47:59,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:47:59,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 03:47:59,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950698105] [2024-11-22 03:47:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:47:59,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 03:47:59,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:47:59,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 03:47:59,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 03:47:59,152 INFO L87 Difference]: Start difference. First operand 6978 states and 10114 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:47:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:47:59,611 INFO L93 Difference]: Finished difference Result 11780 states and 16919 transitions. [2024-11-22 03:47:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 03:47:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-22 03:47:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:47:59,638 INFO L225 Difference]: With dead ends: 11780 [2024-11-22 03:47:59,641 INFO L226 Difference]: Without dead ends: 10490 [2024-11-22 03:47:59,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 03:47:59,648 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 4647 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4647 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:47:59,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4647 Valid, 3375 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:47:59,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10490 states. [2024-11-22 03:48:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10490 to 8266. [2024-11-22 03:48:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8264 states have (on average 1.441674733785092) internal successors, (11914), 8265 states have internal predecessors, (11914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 11914 transitions. [2024-11-22 03:48:00,136 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 11914 transitions. Word has length 65 [2024-11-22 03:48:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:00,136 INFO L471 AbstractCegarLoop]: Abstraction has 8266 states and 11914 transitions. [2024-11-22 03:48:00,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 11914 transitions. [2024-11-22 03:48:00,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 03:48:00,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:00,142 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] [2024-11-22 03:48:00,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 03:48:00,142 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:00,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:00,143 INFO L85 PathProgramCache]: Analyzing trace with hash -999421060, now seen corresponding path program 1 times [2024-11-22 03:48:00,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:00,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850540704] [2024-11-22 03:48:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:00,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:00,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850540704] [2024-11-22 03:48:00,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850540704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:48:00,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:48:00,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:48:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477408206] [2024-11-22 03:48:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:48:00,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:48:00,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:48:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:48:00,314 INFO L87 Difference]: Start difference. First operand 8266 states and 11914 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:00,611 INFO L93 Difference]: Finished difference Result 14998 states and 21332 transitions. [2024-11-22 03:48:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:48:00,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-22 03:48:00,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:00,637 INFO L225 Difference]: With dead ends: 14998 [2024-11-22 03:48:00,641 INFO L226 Difference]: Without dead ends: 8268 [2024-11-22 03:48:00,653 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 [2024-11-22 03:48:00,660 INFO L432 NwaCegarLoop]: 1551 mSDtfsCounter, 37 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3064 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 [2024-11-22 03:48:00,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3064 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:48:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8268 states. [2024-11-22 03:48:01,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8268 to 8266. [2024-11-22 03:48:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8266 states, 8264 states have (on average 1.4266698935140367) internal successors, (11790), 8265 states have internal predecessors, (11790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8266 states to 8266 states and 11790 transitions. [2024-11-22 03:48:01,120 INFO L78 Accepts]: Start accepts. Automaton has 8266 states and 11790 transitions. Word has length 66 [2024-11-22 03:48:01,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:01,120 INFO L471 AbstractCegarLoop]: Abstraction has 8266 states and 11790 transitions. [2024-11-22 03:48:01,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8266 states and 11790 transitions. [2024-11-22 03:48:01,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 03:48:01,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:01,125 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] [2024-11-22 03:48:01,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 03:48:01,125 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:01,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:01,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1980195300, now seen corresponding path program 1 times [2024-11-22 03:48:01,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:01,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559743804] [2024-11-22 03:48:01,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:01,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:01,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:01,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559743804] [2024-11-22 03:48:01,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559743804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:48:01,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:48:01,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:48:01,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974185201] [2024-11-22 03:48:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:48:01,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:48:01,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:01,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:48:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:48:01,280 INFO L87 Difference]: Start difference. First operand 8266 states and 11790 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:01,430 INFO L93 Difference]: Finished difference Result 10839 states and 15374 transitions. [2024-11-22 03:48:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:48:01,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-22 03:48:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:01,444 INFO L225 Difference]: With dead ends: 10839 [2024-11-22 03:48:01,445 INFO L226 Difference]: Without dead ends: 4109 [2024-11-22 03:48:01,460 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 [2024-11-22 03:48:01,460 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 31 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3061 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 [2024-11-22 03:48:01,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3061 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:48:01,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2024-11-22 03:48:01,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4101. [2024-11-22 03:48:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4099 states have (on average 1.4708465479385215) internal successors, (6029), 4100 states have internal predecessors, (6029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 6029 transitions. [2024-11-22 03:48:01,631 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 6029 transitions. Word has length 67 [2024-11-22 03:48:01,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:01,631 INFO L471 AbstractCegarLoop]: Abstraction has 4101 states and 6029 transitions. [2024-11-22 03:48:01,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 6029 transitions. [2024-11-22 03:48:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 03:48:01,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:01,633 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] [2024-11-22 03:48:01,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 03:48:01,633 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:01,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash 823701102, now seen corresponding path program 1 times [2024-11-22 03:48:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:01,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10754413] [2024-11-22 03:48:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:01,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:01,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10754413] [2024-11-22 03:48:01,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10754413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:48:01,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:48:01,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:48:01,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160739729] [2024-11-22 03:48:01,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:48:01,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:48:01,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:01,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:48:01,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:48:01,782 INFO L87 Difference]: Start difference. First operand 4101 states and 6029 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:01,868 INFO L93 Difference]: Finished difference Result 5381 states and 7791 transitions. [2024-11-22 03:48:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:48:01,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-22 03:48:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:01,877 INFO L225 Difference]: With dead ends: 5381 [2024-11-22 03:48:01,877 INFO L226 Difference]: Without dead ends: 2827 [2024-11-22 03:48:01,885 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 [2024-11-22 03:48:01,885 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 33 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3040 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 [2024-11-22 03:48:01,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3040 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:48:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-22 03:48:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2825. [2024-11-22 03:48:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2825 states, 2823 states have (on average 1.5044279135671272) internal successors, (4247), 2824 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 4247 transitions. [2024-11-22 03:48:01,984 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 4247 transitions. Word has length 68 [2024-11-22 03:48:01,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:01,984 INFO L471 AbstractCegarLoop]: Abstraction has 2825 states and 4247 transitions. [2024-11-22 03:48:01,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:01,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 4247 transitions. [2024-11-22 03:48:01,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 03:48:01,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:01,989 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] [2024-11-22 03:48:01,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 03:48:01,989 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:01,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:01,990 INFO L85 PathProgramCache]: Analyzing trace with hash -447735840, now seen corresponding path program 1 times [2024-11-22 03:48:01,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:01,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681084130] [2024-11-22 03:48:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:01,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:02,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:02,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681084130] [2024-11-22 03:48:02,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681084130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:48:02,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 03:48:02,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 03:48:02,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471299612] [2024-11-22 03:48:02,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:48:02,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 03:48:02,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 03:48:02,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 03:48:02,105 INFO L87 Difference]: Start difference. First operand 2825 states and 4247 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:02,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:02,131 INFO L93 Difference]: Finished difference Result 3467 states and 5118 transitions. [2024-11-22 03:48:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 03:48:02,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-22 03:48:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:02,135 INFO L225 Difference]: With dead ends: 3467 [2024-11-22 03:48:02,135 INFO L226 Difference]: Without dead ends: 2189 [2024-11-22 03:48:02,137 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 [2024-11-22 03:48:02,137 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 30 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3025 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 [2024-11-22 03:48:02,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3025 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:48:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-11-22 03:48:02,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2187. [2024-11-22 03:48:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2187 states, 2185 states have (on average 1.5409610983981694) internal successors, (3367), 2186 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:02,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3367 transitions. [2024-11-22 03:48:02,186 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3367 transitions. Word has length 70 [2024-11-22 03:48:02,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:02,186 INFO L471 AbstractCegarLoop]: Abstraction has 2187 states and 3367 transitions. [2024-11-22 03:48:02,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3367 transitions. [2024-11-22 03:48:02,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 03:48:02,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:02,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:48:02,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 03:48:02,187 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:02,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:02,187 INFO L85 PathProgramCache]: Analyzing trace with hash -164665390, now seen corresponding path program 1 times [2024-11-22 03:48:02,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:02,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851133085] [2024-11-22 03:48:02,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:02,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 03:48:02,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:02,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851133085] [2024-11-22 03:48:02,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851133085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:48:02,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355179582] [2024-11-22 03:48:02,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:02,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:02,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:48:02,379 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) [2024-11-22 03:48:02,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:48:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:02,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 03:48:02,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:48:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:02,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:48:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:03,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355179582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:48:03,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:48:03,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 6] total 13 [2024-11-22 03:48:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215513587] [2024-11-22 03:48:03,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:48:03,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 03:48:03,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 03:48:03,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-11-22 03:48:03,094 INFO L87 Difference]: Start difference. First operand 2187 states and 3367 transitions. Second operand has 13 states, 13 states have (on average 15.307692307692308) internal successors, (199), 13 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:03,390 INFO L93 Difference]: Finished difference Result 4996 states and 7019 transitions. [2024-11-22 03:48:03,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 03:48:03,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.307692307692308) internal successors, (199), 13 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-22 03:48:03,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:03,396 INFO L225 Difference]: With dead ends: 4996 [2024-11-22 03:48:03,397 INFO L226 Difference]: Without dead ends: 4319 [2024-11-22 03:48:03,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2024-11-22 03:48:03,398 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 3235 mSDsluCounter, 6515 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 8114 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:48:03,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3235 Valid, 8114 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:48:03,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4319 states. [2024-11-22 03:48:03,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4319 to 3961. [2024-11-22 03:48:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3961 states, 3959 states have (on average 1.4190452134377367) internal successors, (5618), 3960 states have internal predecessors, (5618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3961 states to 3961 states and 5618 transitions. [2024-11-22 03:48:03,474 INFO L78 Accepts]: Start accepts. Automaton has 3961 states and 5618 transitions. Word has length 72 [2024-11-22 03:48:03,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:03,474 INFO L471 AbstractCegarLoop]: Abstraction has 3961 states and 5618 transitions. [2024-11-22 03:48:03,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.307692307692308) internal successors, (199), 13 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3961 states and 5618 transitions. [2024-11-22 03:48:03,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 03:48:03,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:03,475 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] [2024-11-22 03:48:03,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 03:48:03,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:03,680 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:03,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash -790906490, now seen corresponding path program 1 times [2024-11-22 03:48:03,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:03,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155354642] [2024-11-22 03:48:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:03,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:05,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:05,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155354642] [2024-11-22 03:48:05,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155354642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:48:05,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958229972] [2024-11-22 03:48:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:05,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:48:05,240 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) [2024-11-22 03:48:05,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 03:48:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:05,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 03:48:05,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:48:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:05,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:48:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:06,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958229972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:48:06,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:48:06,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-11-22 03:48:06,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465043005] [2024-11-22 03:48:06,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:48:06,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-22 03:48:06,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:06,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-22 03:48:06,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=987, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 03:48:06,748 INFO L87 Difference]: Start difference. First operand 3961 states and 5618 transitions. Second operand has 34 states, 34 states have (on average 5.735294117647059) internal successors, (195), 34 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:10,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:10,334 INFO L93 Difference]: Finished difference Result 12542 states and 16886 transitions. [2024-11-22 03:48:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-22 03:48:10,335 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.735294117647059) internal successors, (195), 34 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-22 03:48:10,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:10,350 INFO L225 Difference]: With dead ends: 12542 [2024-11-22 03:48:10,350 INFO L226 Difference]: Without dead ends: 10179 [2024-11-22 03:48:10,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1675 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1260, Invalid=5546, Unknown=0, NotChecked=0, Total=6806 [2024-11-22 03:48:10,358 INFO L432 NwaCegarLoop]: 1495 mSDtfsCounter, 23172 mSDsluCounter, 9605 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23172 SdHoareTripleChecker+Valid, 11100 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 03:48:10,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23172 Valid, 11100 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 03:48:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2024-11-22 03:48:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 9932. [2024-11-22 03:48:10,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9932 states, 9930 states have (on average 1.3367573011077543) internal successors, (13274), 9931 states have internal predecessors, (13274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9932 states to 9932 states and 13274 transitions. [2024-11-22 03:48:10,555 INFO L78 Accepts]: Start accepts. Automaton has 9932 states and 13274 transitions. Word has length 73 [2024-11-22 03:48:10,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:10,556 INFO L471 AbstractCegarLoop]: Abstraction has 9932 states and 13274 transitions. [2024-11-22 03:48:10,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.735294117647059) internal successors, (195), 34 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:10,557 INFO L276 IsEmpty]: Start isEmpty. Operand 9932 states and 13274 transitions. [2024-11-22 03:48:10,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 03:48:10,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:10,558 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 03:48:10,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 03:48:10,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-22 03:48:10,763 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:10,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:10,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1110377720, now seen corresponding path program 1 times [2024-11-22 03:48:10,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:10,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135660352] [2024-11-22 03:48:10,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:10,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:12,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135660352] [2024-11-22 03:48:12,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135660352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:48:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911043753] [2024-11-22 03:48:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:12,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:12,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:48:12,261 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) [2024-11-22 03:48:12,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 03:48:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:12,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 03:48:12,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:48:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:12,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:48:13,260 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:13,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911043753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:48:13,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:48:13,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-22 03:48:13,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299857457] [2024-11-22 03:48:13,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:48:13,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 03:48:13,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:13,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 03:48:13,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2024-11-22 03:48:13,262 INFO L87 Difference]: Start difference. First operand 9932 states and 13274 transitions. Second operand has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:13,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:13,996 INFO L93 Difference]: Finished difference Result 26540 states and 34769 transitions. [2024-11-22 03:48:13,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 03:48:13,996 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-22 03:48:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:14,025 INFO L225 Difference]: With dead ends: 26540 [2024-11-22 03:48:14,025 INFO L226 Difference]: Without dead ends: 18742 [2024-11-22 03:48:14,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2024-11-22 03:48:14,038 INFO L432 NwaCegarLoop]: 1498 mSDtfsCounter, 16584 mSDsluCounter, 4725 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16584 SdHoareTripleChecker+Valid, 6223 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 03:48:14,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16584 Valid, 6223 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 03:48:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18742 states. [2024-11-22 03:48:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18742 to 18540. [2024-11-22 03:48:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18540 states, 18538 states have (on average 1.2977128061279535) internal successors, (24057), 18539 states have internal predecessors, (24057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18540 states to 18540 states and 24057 transitions. [2024-11-22 03:48:14,429 INFO L78 Accepts]: Start accepts. Automaton has 18540 states and 24057 transitions. Word has length 73 [2024-11-22 03:48:14,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:14,429 INFO L471 AbstractCegarLoop]: Abstraction has 18540 states and 24057 transitions. [2024-11-22 03:48:14,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.730769230769231) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:14,429 INFO L276 IsEmpty]: Start isEmpty. Operand 18540 states and 24057 transitions. [2024-11-22 03:48:14,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 03:48:14,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:14,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:48:14,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 03:48:14,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:14,636 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:14,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:14,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1917258732, now seen corresponding path program 1 times [2024-11-22 03:48:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:14,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627031517] [2024-11-22 03:48:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:14,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:15,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:15,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627031517] [2024-11-22 03:48:15,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627031517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:48:15,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158673904] [2024-11-22 03:48:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:15,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:15,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:48:15,162 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) [2024-11-22 03:48:15,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 03:48:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:15,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 03:48:15,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:48:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:15,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:48:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158673904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:48:16,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:48:16,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-22 03:48:16,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245727007] [2024-11-22 03:48:16,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:48:16,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 03:48:16,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 03:48:16,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-22 03:48:16,222 INFO L87 Difference]: Start difference. First operand 18540 states and 24057 transitions. Second operand has 22 states, 22 states have (on average 7.0) internal successors, (154), 21 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:17,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:17,212 INFO L93 Difference]: Finished difference Result 48331 states and 61921 transitions. [2024-11-22 03:48:17,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 03:48:17,212 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.0) internal successors, (154), 21 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-22 03:48:17,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:17,265 INFO L225 Difference]: With dead ends: 48331 [2024-11-22 03:48:17,265 INFO L226 Difference]: Without dead ends: 32220 [2024-11-22 03:48:17,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2024-11-22 03:48:17,284 INFO L432 NwaCegarLoop]: 1498 mSDtfsCounter, 15245 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15245 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 03:48:17,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15245 Valid, 4692 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 03:48:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32220 states. [2024-11-22 03:48:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32220 to 32216. [2024-11-22 03:48:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32216 states, 32214 states have (on average 1.2799714409883902) internal successors, (41233), 32215 states have internal predecessors, (41233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:18,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32216 states to 32216 states and 41233 transitions. [2024-11-22 03:48:18,304 INFO L78 Accepts]: Start accepts. Automaton has 32216 states and 41233 transitions. Word has length 74 [2024-11-22 03:48:18,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:18,305 INFO L471 AbstractCegarLoop]: Abstraction has 32216 states and 41233 transitions. [2024-11-22 03:48:18,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.0) internal successors, (154), 21 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 32216 states and 41233 transitions. [2024-11-22 03:48:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 03:48:18,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:18,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:48:18,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 03:48:18,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:18,507 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:18,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1897348188, now seen corresponding path program 1 times [2024-11-22 03:48:18,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:18,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797908104] [2024-11-22 03:48:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:18,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:19,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797908104] [2024-11-22 03:48:19,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797908104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:48:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356626177] [2024-11-22 03:48:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:19,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:19,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:48:19,053 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) [2024-11-22 03:48:19,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 03:48:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:19,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 03:48:19,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:48:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:19,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:48:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:20,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356626177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:48:20,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:48:20,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 32 [2024-11-22 03:48:20,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415713691] [2024-11-22 03:48:20,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:48:20,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-22 03:48:20,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-22 03:48:20,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=865, Unknown=0, NotChecked=0, Total=992 [2024-11-22 03:48:20,357 INFO L87 Difference]: Start difference. First operand 32216 states and 41233 transitions. Second operand has 32 states, 32 states have (on average 5.625) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:48:22,994 INFO L93 Difference]: Finished difference Result 61940 states and 79452 transitions. [2024-11-22 03:48:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 03:48:22,994 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.625) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-22 03:48:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:48:23,059 INFO L225 Difference]: With dead ends: 61940 [2024-11-22 03:48:23,059 INFO L226 Difference]: Without dead ends: 50812 [2024-11-22 03:48:23,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=516, Invalid=1934, Unknown=0, NotChecked=0, Total=2450 [2024-11-22 03:48:23,087 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 8627 mSDsluCounter, 15163 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8627 SdHoareTripleChecker+Valid, 16679 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 03:48:23,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8627 Valid, 16679 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 03:48:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50812 states. [2024-11-22 03:48:24,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50812 to 29484. [2024-11-22 03:48:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29484 states, 29482 states have (on average 1.2782036496845532) internal successors, (37684), 29483 states have internal predecessors, (37684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:24,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29484 states to 29484 states and 37684 transitions. [2024-11-22 03:48:24,288 INFO L78 Accepts]: Start accepts. Automaton has 29484 states and 37684 transitions. Word has length 74 [2024-11-22 03:48:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:48:24,290 INFO L471 AbstractCegarLoop]: Abstraction has 29484 states and 37684 transitions. [2024-11-22 03:48:24,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.625) internal successors, (180), 32 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 03:48:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 29484 states and 37684 transitions. [2024-11-22 03:48:24,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 03:48:24,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:48:24,294 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:48:24,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 03:48:24,495 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,SelfDestructingSolverStorable23 [2024-11-22 03:48:24,495 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:48:24,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:48:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash 655774848, now seen corresponding path program 1 times [2024-11-22 03:48:24,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:48:24,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484374460] [2024-11-22 03:48:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:24,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:48:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:24,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:48:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484374460] [2024-11-22 03:48:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484374460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:48:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686127239] [2024-11-22 03:48:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:48:24,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:48:24,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:48:24,719 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) [2024-11-22 03:48:24,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 03:48:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:48:24,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-22 03:48:24,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:48:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:35,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 03:48:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 03:48:41,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686127239] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 03:48:41,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 03:48:41,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 29] total 64 [2024-11-22 03:48:41,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943058149] [2024-11-22 03:48:41,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 03:48:41,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-22 03:48:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:48:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-22 03:48:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=751, Invalid=3281, Unknown=0, NotChecked=0, Total=4032 [2024-11-22 03:48:41,711 INFO L87 Difference]: Start difference. First operand 29484 states and 37684 transitions. Second operand has 64 states, 64 states have (on average 3.1875) internal successors, (204), 64 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)