./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal166.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal166.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0971b174b8810682d28b06351a18d327ff3f4e512eb1d264b24d2865d57cb99f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:04:23,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:04:24,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 05:04:24,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:04:24,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:04:24,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:04:24,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:04:24,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:04:24,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:04:24,067 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:04:24,067 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:04:24,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:04:24,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:04:24,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:04:24,070 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:04:24,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:04:24,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:04:24,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:04:24,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:04:24,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:04:24,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:04:24,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:04:24,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:04:24,074 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:04:24,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:04:24,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:04:24,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:04:24,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:04:24,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:04:24,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:04:24,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:04:24,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:04:24,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:04:24,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:04:24,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:04:24,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:04:24,079 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:04:24,079 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:04:24,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:04:24,079 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0971b174b8810682d28b06351a18d327ff3f4e512eb1d264b24d2865d57cb99f [2023-11-29 05:04:24,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:04:24,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:04:24,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:04:24,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:04:24,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:04:24,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal166.c [2023-11-29 05:04:27,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:04:27,810 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:04:27,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal166.c [2023-11-29 05:04:27,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/data/bb21611bf/7014d11be017405f9e4e58fd9f833ff8/FLAGfdb401608 [2023-11-29 05:04:27,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/data/bb21611bf/7014d11be017405f9e4e58fd9f833ff8 [2023-11-29 05:04:27,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:04:27,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:04:27,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:04:27,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:04:27,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:04:27,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:04:27" (1/1) ... [2023-11-29 05:04:27,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698e38cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:27, skipping insertion in model container [2023-11-29 05:04:27,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:04:27" (1/1) ... [2023-11-29 05:04:28,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:04:28,352 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal166.c[1246,1259] [2023-11-29 05:04:29,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:04:29,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:04:29,570 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal166.c[1246,1259] [2023-11-29 05:04:30,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:04:30,583 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:04:30,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30 WrapperNode [2023-11-29 05:04:30,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:04:30,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:04:30,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:04:30,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:04:30,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:30,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:33,487 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44856 [2023-11-29 05:04:33,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:04:33,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:04:33,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:04:33,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:04:33,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:33,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:34,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:34,552 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]. [2023-11-29 05:04:34,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:34,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:35,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:35,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:35,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:35,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:36,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:04:36,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:04:36,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:04:36,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:04:36,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (1/1) ... [2023-11-29 05:04:36,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:04:36,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:04:36,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:04:36,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7eee00-defe-4793-ad29-cc41f32af731/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:04:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:04:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:04:36,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:04:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:04:37,870 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:04:37,872 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:05:04,040 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:05:04,607 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:05:04,607 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:05:04,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:05:04 BoogieIcfgContainer [2023-11-29 05:05:04,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:05:04,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:05:04,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:05:04,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:05:04,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:04:27" (1/3) ... [2023-11-29 05:05:04,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f612d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:05:04, skipping insertion in model container [2023-11-29 05:05:04,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:04:30" (2/3) ... [2023-11-29 05:05:04,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f612d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:05:04, skipping insertion in model container [2023-11-29 05:05:04,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:05:04" (3/3) ... [2023-11-29 05:05:04,622 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal166.c [2023-11-29 05:05:04,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:05:04,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:05:04,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:05:04,958 INFO L357 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, mHoare=true, 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;@9b2c20d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:05:04,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:05:04,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 9911 states, 9909 states have (on average 1.6670703400948632) internal successors, (16519), 9910 states have internal predecessors, (16519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2023-11-29 05:05:05,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:05,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:05,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:05,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:05,022 INFO L85 PathProgramCache]: Analyzing trace with hash -990020967, now seen corresponding path program 1 times [2023-11-29 05:05:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52237515] [2023-11-29 05:05:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:16,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52237515] [2023-11-29 05:05:16,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52237515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:16,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:16,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:05:16,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455055819] [2023-11-29 05:05:16,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:16,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:05:16,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:16,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:05:16,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:05:16,639 INFO L87 Difference]: Start difference. First operand has 9911 states, 9909 states have (on average 1.6670703400948632) internal successors, (16519), 9910 states have internal predecessors, (16519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:17,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:17,065 INFO L93 Difference]: Finished difference Result 19710 states and 32854 transitions. [2023-11-29 05:05:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:05:17,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 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 548 [2023-11-29 05:05:17,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:17,128 INFO L225 Difference]: With dead ends: 19710 [2023-11-29 05:05:17,128 INFO L226 Difference]: Without dead ends: 9911 [2023-11-29 05:05:17,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:05:17,147 INFO L413 NwaCegarLoop]: 16512 mSDtfsCounter, 1 mSDsluCounter, 33019 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49531 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:17,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49531 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:05:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9911 states. [2023-11-29 05:05:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9911 to 9911. [2023-11-29 05:05:17,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9911 states, 9910 states have (on average 1.6667003027245206) internal successors, (16517), 9910 states have internal predecessors, (16517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9911 states to 9911 states and 16517 transitions. [2023-11-29 05:05:17,399 INFO L78 Accepts]: Start accepts. Automaton has 9911 states and 16517 transitions. Word has length 548 [2023-11-29 05:05:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:17,401 INFO L495 AbstractCegarLoop]: Abstraction has 9911 states and 16517 transitions. [2023-11-29 05:05:17,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9911 states and 16517 transitions. [2023-11-29 05:05:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2023-11-29 05:05:17,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:17,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:17,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:05:17,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:17,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash -624150693, now seen corresponding path program 1 times [2023-11-29 05:05:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:17,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663660797] [2023-11-29 05:05:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:18,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:18,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:18,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663660797] [2023-11-29 05:05:18,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663660797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:18,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:18,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:05:18,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733471995] [2023-11-29 05:05:18,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:18,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:05:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:18,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:05:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:05:18,827 INFO L87 Difference]: Start difference. First operand 9911 states and 16517 transitions. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:19,199 INFO L93 Difference]: Finished difference Result 19713 states and 32852 transitions. [2023-11-29 05:05:19,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:05:19,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 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 549 [2023-11-29 05:05:19,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:19,242 INFO L225 Difference]: With dead ends: 19713 [2023-11-29 05:05:19,242 INFO L226 Difference]: Without dead ends: 9914 [2023-11-29 05:05:19,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:05:19,253 INFO L413 NwaCegarLoop]: 16512 mSDtfsCounter, 1 mSDsluCounter, 33017 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49529 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:19,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49529 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:05:19,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9914 states. [2023-11-29 05:05:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9914 to 9913. [2023-11-29 05:05:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9913 states, 9912 states have (on average 1.6665657788539145) internal successors, (16519), 9912 states have internal predecessors, (16519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:19,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9913 states to 9913 states and 16519 transitions. [2023-11-29 05:05:19,436 INFO L78 Accepts]: Start accepts. Automaton has 9913 states and 16519 transitions. Word has length 549 [2023-11-29 05:05:19,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:19,437 INFO L495 AbstractCegarLoop]: Abstraction has 9913 states and 16519 transitions. [2023-11-29 05:05:19,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 9913 states and 16519 transitions. [2023-11-29 05:05:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2023-11-29 05:05:19,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:19,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:19,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:05:19,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:19,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:19,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1915735795, now seen corresponding path program 1 times [2023-11-29 05:05:19,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:19,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103369115] [2023-11-29 05:05:19,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:19,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:29,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:29,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103369115] [2023-11-29 05:05:29,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103369115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:29,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:29,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:05:29,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290520107] [2023-11-29 05:05:29,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:29,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:05:29,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:05:29,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:05:29,279 INFO L87 Difference]: Start difference. First operand 9913 states and 16519 transitions. Second operand has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:31,223 INFO L93 Difference]: Finished difference Result 30212 states and 50346 transitions. [2023-11-29 05:05:31,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:05:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 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 550 [2023-11-29 05:05:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:31,278 INFO L225 Difference]: With dead ends: 30212 [2023-11-29 05:05:31,279 INFO L226 Difference]: Without dead ends: 20411 [2023-11-29 05:05:31,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:05:31,297 INFO L413 NwaCegarLoop]: 17595 mSDtfsCounter, 82448 mSDsluCounter, 49330 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82448 SdHoareTripleChecker+Valid, 66925 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:31,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82448 Valid, 66925 Invalid, 295 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:05:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20411 states. [2023-11-29 05:05:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20411 to 10611. [2023-11-29 05:05:31,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10611 states, 10610 states have (on average 1.6664467483506127) internal successors, (17681), 10610 states have internal predecessors, (17681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10611 states to 10611 states and 17681 transitions. [2023-11-29 05:05:31,606 INFO L78 Accepts]: Start accepts. Automaton has 10611 states and 17681 transitions. Word has length 550 [2023-11-29 05:05:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:31,607 INFO L495 AbstractCegarLoop]: Abstraction has 10611 states and 17681 transitions. [2023-11-29 05:05:31,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.66666666666667) internal successors, (550), 5 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 10611 states and 17681 transitions. [2023-11-29 05:05:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-11-29 05:05:31,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:31,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:31,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:05:31,621 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:31,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash 465150527, now seen corresponding path program 1 times [2023-11-29 05:05:31,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:31,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4545949] [2023-11-29 05:05:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:31,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:38,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:38,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4545949] [2023-11-29 05:05:38,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4545949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:38,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:38,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:05:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012258186] [2023-11-29 05:05:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:38,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:05:38,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:38,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:05:38,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:05:38,794 INFO L87 Difference]: Start difference. First operand 10611 states and 17681 transitions. Second operand has 9 states, 9 states have (on average 61.22222222222222) internal successors, (551), 8 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:42,133 INFO L93 Difference]: Finished difference Result 40005 states and 66668 transitions. [2023-11-29 05:05:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:05:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 61.22222222222222) internal successors, (551), 8 states have internal predecessors, (551), 0 states have call successors, (0), 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 551 [2023-11-29 05:05:42,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:42,171 INFO L225 Difference]: With dead ends: 40005 [2023-11-29 05:05:42,171 INFO L226 Difference]: Without dead ends: 30204 [2023-11-29 05:05:42,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-11-29 05:05:42,186 INFO L413 NwaCegarLoop]: 33826 mSDtfsCounter, 115099 mSDsluCounter, 118016 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115099 SdHoareTripleChecker+Valid, 151842 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:42,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115099 Valid, 151842 Invalid, 797 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:05:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30204 states. [2023-11-29 05:05:42,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30204 to 10615. [2023-11-29 05:05:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10615 states, 10614 states have (on average 1.666384021104202) internal successors, (17687), 10614 states have internal predecessors, (17687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10615 states to 10615 states and 17687 transitions. [2023-11-29 05:05:42,485 INFO L78 Accepts]: Start accepts. Automaton has 10615 states and 17687 transitions. Word has length 551 [2023-11-29 05:05:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:42,486 INFO L495 AbstractCegarLoop]: Abstraction has 10615 states and 17687 transitions. [2023-11-29 05:05:42,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 61.22222222222222) internal successors, (551), 8 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 10615 states and 17687 transitions. [2023-11-29 05:05:42,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-11-29 05:05:42,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:42,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:42,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:05:42,501 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:42,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:42,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2054809407, now seen corresponding path program 1 times [2023-11-29 05:05:42,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:42,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758392677] [2023-11-29 05:05:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:42,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:05:53,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:53,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758392677] [2023-11-29 05:05:53,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758392677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:53,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:53,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:05:53,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628472474] [2023-11-29 05:05:53,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:53,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:05:53,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:05:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:05:53,428 INFO L87 Difference]: Start difference. First operand 10615 states and 17687 transitions. Second operand has 8 states, 8 states have (on average 68.875) internal successors, (551), 7 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:55,088 INFO L93 Difference]: Finished difference Result 42084 states and 70120 transitions. [2023-11-29 05:05:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:05:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 68.875) internal successors, (551), 7 states have internal predecessors, (551), 0 states have call successors, (0), 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 551 [2023-11-29 05:05:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:55,121 INFO L225 Difference]: With dead ends: 42084 [2023-11-29 05:05:55,122 INFO L226 Difference]: Without dead ends: 31860 [2023-11-29 05:05:55,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:05:55,138 INFO L413 NwaCegarLoop]: 16916 mSDtfsCounter, 130374 mSDsluCounter, 84053 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130374 SdHoareTripleChecker+Valid, 100969 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:55,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130374 Valid, 100969 Invalid, 337 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:05:55,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31860 states. [2023-11-29 05:05:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31860 to 11057. [2023-11-29 05:05:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11057 states, 11056 states have (on average 1.6659732272069465) internal successors, (18419), 11056 states have internal predecessors, (18419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11057 states to 11057 states and 18419 transitions. [2023-11-29 05:05:55,336 INFO L78 Accepts]: Start accepts. Automaton has 11057 states and 18419 transitions. Word has length 551 [2023-11-29 05:05:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:55,337 INFO L495 AbstractCegarLoop]: Abstraction has 11057 states and 18419 transitions. [2023-11-29 05:05:55,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.875) internal successors, (551), 7 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 11057 states and 18419 transitions. [2023-11-29 05:05:55,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-11-29 05:05:55,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:55,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:55,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:05:55,341 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:55,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2125094741, now seen corresponding path program 1 times [2023-11-29 05:05:55,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:55,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489042495] [2023-11-29 05:05:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:01,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:01,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489042495] [2023-11-29 05:06:01,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489042495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:01,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:01,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:06:01,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411792534] [2023-11-29 05:06:01,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:01,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:06:01,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:01,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:06:01,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:06:01,564 INFO L87 Difference]: Start difference. First operand 11057 states and 18419 transitions. Second operand has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 7 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:02,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:02,490 INFO L93 Difference]: Finished difference Result 41891 states and 69789 transitions. [2023-11-29 05:06:02,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:06:02,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 7 states have internal predecessors, (552), 0 states have call successors, (0), 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 552 [2023-11-29 05:06:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:02,529 INFO L225 Difference]: With dead ends: 41891 [2023-11-29 05:06:02,529 INFO L226 Difference]: Without dead ends: 31857 [2023-11-29 05:06:02,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:06:02,546 INFO L413 NwaCegarLoop]: 33217 mSDtfsCounter, 81509 mSDsluCounter, 67745 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81509 SdHoareTripleChecker+Valid, 100962 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:02,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81509 Valid, 100962 Invalid, 52 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:06:02,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31857 states. [2023-11-29 05:06:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31857 to 11877. [2023-11-29 05:06:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11877 states, 11876 states have (on average 1.6656281576288312) internal successors, (19781), 11876 states have internal predecessors, (19781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11877 states to 11877 states and 19781 transitions. [2023-11-29 05:06:02,861 INFO L78 Accepts]: Start accepts. Automaton has 11877 states and 19781 transitions. Word has length 552 [2023-11-29 05:06:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:02,862 INFO L495 AbstractCegarLoop]: Abstraction has 11877 states and 19781 transitions. [2023-11-29 05:06:02,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 7 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 11877 states and 19781 transitions. [2023-11-29 05:06:02,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-11-29 05:06:02,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:02,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:02,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:06:02,871 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:02,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:02,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1554222267, now seen corresponding path program 1 times [2023-11-29 05:06:02,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:02,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694281894] [2023-11-29 05:06:02,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:02,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:13,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:13,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694281894] [2023-11-29 05:06:13,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694281894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:13,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:13,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:06:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093109404] [2023-11-29 05:06:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:13,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:06:13,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:13,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:06:13,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:06:13,029 INFO L87 Difference]: Start difference. First operand 11877 states and 19781 transitions. Second operand has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:26,047 INFO L93 Difference]: Finished difference Result 34413 states and 57315 transitions. [2023-11-29 05:06:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:06:26,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 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 552 [2023-11-29 05:06:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:26,073 INFO L225 Difference]: With dead ends: 34413 [2023-11-29 05:06:26,073 INFO L226 Difference]: Without dead ends: 23151 [2023-11-29 05:06:26,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:06:26,087 INFO L413 NwaCegarLoop]: 27902 mSDtfsCounter, 32584 mSDsluCounter, 97703 mSDsCounter, 0 mSdLazyCounter, 22280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32584 SdHoareTripleChecker+Valid, 125605 SdHoareTripleChecker+Invalid, 22282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:26,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32584 Valid, 125605 Invalid, 22282 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [2 Valid, 22280 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-11-29 05:06:26,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23151 states. [2023-11-29 05:06:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23151 to 11887. [2023-11-29 05:06:26,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11887 states, 11886 states have (on average 1.665236412586236) internal successors, (19793), 11886 states have internal predecessors, (19793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11887 states to 11887 states and 19793 transitions. [2023-11-29 05:06:26,255 INFO L78 Accepts]: Start accepts. Automaton has 11887 states and 19793 transitions. Word has length 552 [2023-11-29 05:06:26,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:26,255 INFO L495 AbstractCegarLoop]: Abstraction has 11887 states and 19793 transitions. [2023-11-29 05:06:26,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:26,256 INFO L276 IsEmpty]: Start isEmpty. Operand 11887 states and 19793 transitions. [2023-11-29 05:06:26,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-11-29 05:06:26,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:26,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:26,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:06:26,261 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:26,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:26,261 INFO L85 PathProgramCache]: Analyzing trace with hash -657991097, now seen corresponding path program 1 times [2023-11-29 05:06:26,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262572564] [2023-11-29 05:06:26,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:26,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:39,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262572564] [2023-11-29 05:06:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262572564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:39,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:39,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:06:39,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900371225] [2023-11-29 05:06:39,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:39,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:06:39,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:39,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:06:39,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:06:39,602 INFO L87 Difference]: Start difference. First operand 11887 states and 19793 transitions. Second operand has 10 states, 10 states have (on average 55.2) internal successors, (552), 9 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:47,272 INFO L93 Difference]: Finished difference Result 74347 states and 123829 transitions. [2023-11-29 05:06:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 05:06:47,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 55.2) internal successors, (552), 9 states have internal predecessors, (552), 0 states have call successors, (0), 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 552 [2023-11-29 05:06:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:47,329 INFO L225 Difference]: With dead ends: 74347 [2023-11-29 05:06:47,329 INFO L226 Difference]: Without dead ends: 62626 [2023-11-29 05:06:47,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2023-11-29 05:06:47,349 INFO L413 NwaCegarLoop]: 15898 mSDtfsCounter, 341741 mSDsluCounter, 95328 mSDsCounter, 0 mSdLazyCounter, 4867 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341741 SdHoareTripleChecker+Valid, 111226 SdHoareTripleChecker+Invalid, 4880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:47,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341741 Valid, 111226 Invalid, 4880 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [13 Valid, 4867 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-29 05:06:47,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62626 states. [2023-11-29 05:06:47,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62626 to 12773. [2023-11-29 05:06:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12773 states, 12772 states have (on average 1.664970247416223) internal successors, (21265), 12772 states have internal predecessors, (21265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12773 states to 12773 states and 21265 transitions. [2023-11-29 05:06:47,677 INFO L78 Accepts]: Start accepts. Automaton has 12773 states and 21265 transitions. Word has length 552 [2023-11-29 05:06:47,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:47,677 INFO L495 AbstractCegarLoop]: Abstraction has 12773 states and 21265 transitions. [2023-11-29 05:06:47,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.2) internal successors, (552), 9 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 12773 states and 21265 transitions. [2023-11-29 05:06:47,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-11-29 05:06:47,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:47,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:47,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:06:47,683 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:47,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:47,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1184623441, now seen corresponding path program 1 times [2023-11-29 05:06:47,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:47,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046743539] [2023-11-29 05:06:47,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:47,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:55,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:06:55,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:55,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046743539] [2023-11-29 05:06:55,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046743539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:55,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:55,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:06:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640521251] [2023-11-29 05:06:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:55,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:06:55,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:55,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:06:55,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:06:55,973 INFO L87 Difference]: Start difference. First operand 12773 states and 21265 transitions. Second operand has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:58,316 INFO L93 Difference]: Finished difference Result 35996 states and 59932 transitions. [2023-11-29 05:06:58,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:06:58,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 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 552 [2023-11-29 05:06:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:58,336 INFO L225 Difference]: With dead ends: 35996 [2023-11-29 05:06:58,336 INFO L226 Difference]: Without dead ends: 24055 [2023-11-29 05:06:58,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:06:58,347 INFO L413 NwaCegarLoop]: 16211 mSDtfsCounter, 48983 mSDsluCounter, 64714 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48983 SdHoareTripleChecker+Valid, 80925 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:58,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48983 Valid, 80925 Invalid, 1995 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 05:06:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24055 states. [2023-11-29 05:06:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24055 to 12335. [2023-11-29 05:06:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12335 states, 12334 states have (on average 1.6647478514674883) internal successors, (20533), 12334 states have internal predecessors, (20533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12335 states to 12335 states and 20533 transitions. [2023-11-29 05:06:58,529 INFO L78 Accepts]: Start accepts. Automaton has 12335 states and 20533 transitions. Word has length 552 [2023-11-29 05:06:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:58,529 INFO L495 AbstractCegarLoop]: Abstraction has 12335 states and 20533 transitions. [2023-11-29 05:06:58,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.85714285714286) internal successors, (552), 6 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 12335 states and 20533 transitions. [2023-11-29 05:06:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:06:58,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:58,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:58,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:06:58,535 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:58,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1015388905, now seen corresponding path program 1 times [2023-11-29 05:06:58,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329979335] [2023-11-29 05:06:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:04,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:04,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329979335] [2023-11-29 05:07:04,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329979335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:04,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:04,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:07:04,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056779182] [2023-11-29 05:07:04,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:04,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:07:04,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:07:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:07:04,700 INFO L87 Difference]: Start difference. First operand 12335 states and 20533 transitions. Second operand has 8 states, 8 states have (on average 69.125) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:13,861 INFO L93 Difference]: Finished difference Result 34512 states and 57446 transitions. [2023-11-29 05:07:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:07:13,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:07:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:13,881 INFO L225 Difference]: With dead ends: 34512 [2023-11-29 05:07:13,881 INFO L226 Difference]: Without dead ends: 23417 [2023-11-29 05:07:13,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2023-11-29 05:07:13,891 INFO L413 NwaCegarLoop]: 14967 mSDtfsCounter, 65302 mSDsluCounter, 60299 mSDsCounter, 0 mSdLazyCounter, 10113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65302 SdHoareTripleChecker+Valid, 75266 SdHoareTripleChecker+Invalid, 10115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:13,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65302 Valid, 75266 Invalid, 10115 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 10113 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-29 05:07:13,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23417 states. [2023-11-29 05:07:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23417 to 12605. [2023-11-29 05:07:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12605 states, 12604 states have (on average 1.6636781973976515) internal successors, (20969), 12604 states have internal predecessors, (20969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:14,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12605 states to 12605 states and 20969 transitions. [2023-11-29 05:07:14,063 INFO L78 Accepts]: Start accepts. Automaton has 12605 states and 20969 transitions. Word has length 553 [2023-11-29 05:07:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:14,063 INFO L495 AbstractCegarLoop]: Abstraction has 12605 states and 20969 transitions. [2023-11-29 05:07:14,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 12605 states and 20969 transitions. [2023-11-29 05:07:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:07:14,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:14,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:14,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 05:07:14,068 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:07:14,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:14,069 INFO L85 PathProgramCache]: Analyzing trace with hash -77863539, now seen corresponding path program 1 times [2023-11-29 05:07:14,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:14,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576437915] [2023-11-29 05:07:14,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:14,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:21,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:21,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576437915] [2023-11-29 05:07:21,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576437915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:21,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:21,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:07:21,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045314988] [2023-11-29 05:07:21,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:21,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:07:21,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:21,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:07:21,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:07:21,429 INFO L87 Difference]: Start difference. First operand 12605 states and 20969 transitions. Second operand has 7 states, 7 states have (on average 79.0) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:27,969 INFO L93 Difference]: Finished difference Result 23821 states and 39641 transitions. [2023-11-29 05:07:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:07:27,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 79.0) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:07:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:27,979 INFO L225 Difference]: With dead ends: 23821 [2023-11-29 05:07:27,980 INFO L226 Difference]: Without dead ends: 12605 [2023-11-29 05:07:27,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:07:27,987 INFO L413 NwaCegarLoop]: 14360 mSDtfsCounter, 32587 mSDsluCounter, 43544 mSDsCounter, 0 mSdLazyCounter, 10642 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32587 SdHoareTripleChecker+Valid, 57904 SdHoareTripleChecker+Invalid, 10644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:27,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32587 Valid, 57904 Invalid, 10644 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 10642 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 05:07:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12605 states. [2023-11-29 05:07:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12605 to 12605. [2023-11-29 05:07:28,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12605 states, 12604 states have (on average 1.663519517613456) internal successors, (20967), 12604 states have internal predecessors, (20967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12605 states to 12605 states and 20967 transitions. [2023-11-29 05:07:28,104 INFO L78 Accepts]: Start accepts. Automaton has 12605 states and 20967 transitions. Word has length 553 [2023-11-29 05:07:28,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:28,104 INFO L495 AbstractCegarLoop]: Abstraction has 12605 states and 20967 transitions. [2023-11-29 05:07:28,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.0) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:28,105 INFO L276 IsEmpty]: Start isEmpty. Operand 12605 states and 20967 transitions. [2023-11-29 05:07:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:07:28,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:28,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:28,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 05:07:28,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:07:28,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:28,109 INFO L85 PathProgramCache]: Analyzing trace with hash -385409649, now seen corresponding path program 1 times [2023-11-29 05:07:28,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:28,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289057803] [2023-11-29 05:07:28,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:28,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:07:40,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:07:40,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:07:40,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289057803] [2023-11-29 05:07:40,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289057803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:07:40,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:07:40,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:07:40,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125546787] [2023-11-29 05:07:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:07:40,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:07:40,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:07:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:07:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:07:40,792 INFO L87 Difference]: Start difference. First operand 12605 states and 20967 transitions. Second operand has 8 states, 8 states have (on average 69.125) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:46,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:07:46,957 INFO L93 Difference]: Finished difference Result 42447 states and 70671 transitions. [2023-11-29 05:07:46,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 05:07:46,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:07:46,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:07:46,984 INFO L225 Difference]: With dead ends: 42447 [2023-11-29 05:07:46,984 INFO L226 Difference]: Without dead ends: 31633 [2023-11-29 05:07:46,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:07:46,994 INFO L413 NwaCegarLoop]: 30537 mSDtfsCounter, 65873 mSDsluCounter, 108340 mSDsCounter, 0 mSdLazyCounter, 5386 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65873 SdHoareTripleChecker+Valid, 138877 SdHoareTripleChecker+Invalid, 5388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:07:46,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65873 Valid, 138877 Invalid, 5388 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [2 Valid, 5386 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 05:07:47,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31633 states. [2023-11-29 05:07:47,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31633 to 13013. [2023-11-29 05:07:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13013 states, 13012 states have (on average 1.663464494312942) internal successors, (21645), 13012 states have internal predecessors, (21645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13013 states to 13013 states and 21645 transitions. [2023-11-29 05:07:47,194 INFO L78 Accepts]: Start accepts. Automaton has 13013 states and 21645 transitions. Word has length 553 [2023-11-29 05:07:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:07:47,195 INFO L495 AbstractCegarLoop]: Abstraction has 13013 states and 21645 transitions. [2023-11-29 05:07:47,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:07:47,195 INFO L276 IsEmpty]: Start isEmpty. Operand 13013 states and 21645 transitions. [2023-11-29 05:07:47,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:07:47,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:07:47,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:07:47,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 05:07:47,201 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:07:47,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:07:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash -810832449, now seen corresponding path program 1 times [2023-11-29 05:07:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:07:47,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293073759] [2023-11-29 05:07:47,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:07:47,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:07:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:08:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:08:00,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:08:00,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293073759] [2023-11-29 05:08:00,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293073759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:08:00,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:08:00,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:08:00,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608379534] [2023-11-29 05:08:00,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:08:00,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:08:00,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:08:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:08:00,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:08:00,483 INFO L87 Difference]: Start difference. First operand 13013 states and 21645 transitions. Second operand has 9 states, 9 states have (on average 61.44444444444444) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:05,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:05,784 INFO L93 Difference]: Finished difference Result 42860 states and 71357 transitions. [2023-11-29 05:08:05,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:08:05,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 61.44444444444444) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:08:05,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:05,811 INFO L225 Difference]: With dead ends: 42860 [2023-11-29 05:08:05,811 INFO L226 Difference]: Without dead ends: 32046 [2023-11-29 05:08:05,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:08:05,822 INFO L413 NwaCegarLoop]: 31035 mSDtfsCounter, 82374 mSDsluCounter, 93601 mSDsCounter, 0 mSdLazyCounter, 3193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82374 SdHoareTripleChecker+Valid, 124636 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:05,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82374 Valid, 124636 Invalid, 3193 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 3193 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 05:08:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32046 states. [2023-11-29 05:08:05,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32046 to 13020. [2023-11-29 05:08:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13020 states, 13019 states have (on average 1.6633381980182809) internal successors, (21655), 13019 states have internal predecessors, (21655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:06,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13020 states to 13020 states and 21655 transitions. [2023-11-29 05:08:06,022 INFO L78 Accepts]: Start accepts. Automaton has 13020 states and 21655 transitions. Word has length 553 [2023-11-29 05:08:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:06,023 INFO L495 AbstractCegarLoop]: Abstraction has 13020 states and 21655 transitions. [2023-11-29 05:08:06,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 61.44444444444444) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:06,023 INFO L276 IsEmpty]: Start isEmpty. Operand 13020 states and 21655 transitions. [2023-11-29 05:08:06,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:08:06,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:06,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:06,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 05:08:06,029 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:08:06,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:06,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1337464793, now seen corresponding path program 1 times [2023-11-29 05:08:06,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:08:06,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252023968] [2023-11-29 05:08:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:08:06,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:08:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:08:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:08:09,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:08:09,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252023968] [2023-11-29 05:08:09,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252023968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:08:09,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:08:09,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:08:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320367568] [2023-11-29 05:08:09,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:08:09,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:08:09,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:08:09,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:08:09,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:08:09,333 INFO L87 Difference]: Start difference. First operand 13020 states and 21655 transitions. Second operand has 5 states, 5 states have (on average 110.6) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:10,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:10,593 INFO L93 Difference]: Finished difference Result 25347 states and 42164 transitions. [2023-11-29 05:08:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:08:10,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:08:10,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:10,603 INFO L225 Difference]: With dead ends: 25347 [2023-11-29 05:08:10,604 INFO L226 Difference]: Without dead ends: 13028 [2023-11-29 05:08:10,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:08:10,610 INFO L413 NwaCegarLoop]: 16131 mSDtfsCounter, 16408 mSDsluCounter, 32219 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16408 SdHoareTripleChecker+Valid, 48350 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:10,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16408 Valid, 48350 Invalid, 1198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:08:10,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13028 states. [2023-11-29 05:08:10,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13028 to 13026. [2023-11-29 05:08:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13026 states, 13025 states have (on average 1.663186180422265) internal successors, (21663), 13025 states have internal predecessors, (21663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13026 states to 13026 states and 21663 transitions. [2023-11-29 05:08:10,724 INFO L78 Accepts]: Start accepts. Automaton has 13026 states and 21663 transitions. Word has length 553 [2023-11-29 05:08:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:10,724 INFO L495 AbstractCegarLoop]: Abstraction has 13026 states and 21663 transitions. [2023-11-29 05:08:10,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 13026 states and 21663 transitions. [2023-11-29 05:08:10,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:08:10,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:10,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:10,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 05:08:10,729 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:08:10,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash 535966377, now seen corresponding path program 1 times [2023-11-29 05:08:10,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:08:10,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614488037] [2023-11-29 05:08:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:08:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:08:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:08:22,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:08:22,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:08:22,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614488037] [2023-11-29 05:08:22,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614488037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:08:22,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:08:22,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:08:22,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491908372] [2023-11-29 05:08:22,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:08:22,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:08:22,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:08:22,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:08:22,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:08:22,617 INFO L87 Difference]: Start difference. First operand 13026 states and 21663 transitions. Second operand has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:26,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:26,887 INFO L93 Difference]: Finished difference Result 57850 states and 96174 transitions. [2023-11-29 05:08:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:08:26,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:08:26,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:26,908 INFO L225 Difference]: With dead ends: 57850 [2023-11-29 05:08:26,908 INFO L226 Difference]: Without dead ends: 24511 [2023-11-29 05:08:26,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-29 05:08:26,925 INFO L413 NwaCegarLoop]: 19199 mSDtfsCounter, 124644 mSDsluCounter, 115928 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124644 SdHoareTripleChecker+Valid, 135127 SdHoareTripleChecker+Invalid, 2054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:26,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124644 Valid, 135127 Invalid, 2054 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [265 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 05:08:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24511 states. [2023-11-29 05:08:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24511 to 13472. [2023-11-29 05:08:27,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13472 states, 13471 states have (on average 1.6630539677826441) internal successors, (22403), 13471 states have internal predecessors, (22403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 22403 transitions. [2023-11-29 05:08:27,099 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 22403 transitions. Word has length 553 [2023-11-29 05:08:27,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:27,099 INFO L495 AbstractCegarLoop]: Abstraction has 13472 states and 22403 transitions. [2023-11-29 05:08:27,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 22403 transitions. [2023-11-29 05:08:27,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:08:27,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:27,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:27,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:08:27,104 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:08:27,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:27,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1761190133, now seen corresponding path program 1 times [2023-11-29 05:08:27,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:08:27,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155196089] [2023-11-29 05:08:27,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:08:27,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:08:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:08:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:08:34,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:08:34,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155196089] [2023-11-29 05:08:34,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155196089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:08:34,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:08:34,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:08:34,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298362029] [2023-11-29 05:08:34,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:08:34,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:08:34,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:08:34,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:08:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:08:34,393 INFO L87 Difference]: Start difference. First operand 13472 states and 22403 transitions. Second operand has 7 states, 7 states have (on average 79.0) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:08:37,818 INFO L93 Difference]: Finished difference Result 26019 states and 43276 transitions. [2023-11-29 05:08:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:08:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 79.0) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 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 553 [2023-11-29 05:08:37,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:08:37,830 INFO L225 Difference]: With dead ends: 26019 [2023-11-29 05:08:37,830 INFO L226 Difference]: Without dead ends: 13474 [2023-11-29 05:08:37,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:08:37,837 INFO L413 NwaCegarLoop]: 15781 mSDtfsCounter, 32742 mSDsluCounter, 47531 mSDsCounter, 0 mSdLazyCounter, 3361 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32742 SdHoareTripleChecker+Valid, 63312 SdHoareTripleChecker+Invalid, 3364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:08:37,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32742 Valid, 63312 Invalid, 3364 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 3361 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 05:08:37,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13474 states. [2023-11-29 05:08:37,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13474 to 13472. [2023-11-29 05:08:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13472 states, 13471 states have (on average 1.6629055007052187) internal successors, (22401), 13471 states have internal predecessors, (22401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 22401 transitions. [2023-11-29 05:08:37,988 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 22401 transitions. Word has length 553 [2023-11-29 05:08:37,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:08:37,988 INFO L495 AbstractCegarLoop]: Abstraction has 13472 states and 22401 transitions. [2023-11-29 05:08:37,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.0) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:08:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 22401 transitions. [2023-11-29 05:08:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-11-29 05:08:37,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:08:37,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:08:37,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 05:08:37,995 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:08:37,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:08:37,995 INFO L85 PathProgramCache]: Analyzing trace with hash 112241037, now seen corresponding path program 1 times [2023-11-29 05:08:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:08:37,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961096740] [2023-11-29 05:08:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:08:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:09:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:14:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:14:57,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:14:57,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961096740] [2023-11-29 05:14:57,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961096740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:14:57,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:14:57,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2023-11-29 05:14:57,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447925826] [2023-11-29 05:14:57,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:14:57,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2023-11-29 05:14:57,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:14:57,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2023-11-29 05:14:57,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=559, Invalid=11213, Unknown=0, NotChecked=0, Total=11772 [2023-11-29 05:14:57,999 INFO L87 Difference]: Start difference. First operand 13472 states and 22401 transitions. Second operand has 109 states, 109 states have (on average 5.073394495412844) internal successors, (553), 108 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)