./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.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_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/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_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/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_c47cf9db-6281-4e97-a461-064b60cd5eda/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 21d3b5f5f45e838fe2a280802b5788520d014c57271d384acd297e13beb553d8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:32:57,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:32:57,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 03:32:57,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:32:57,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:32:57,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:32:57,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:32:57,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:32:57,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:32:57,280 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:32:57,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:32:57,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:32:57,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:32:57,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:32:57,283 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:32:57,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:32:57,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:32:57,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:32:57,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:32:57,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:32:57,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:32:57,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:32:57,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:32:57,288 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:32:57,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:32:57,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:32:57,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:32:57,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:32:57,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:32:57,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:32:57,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:32:57,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:32:57,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:32:57,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:32:57,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:32:57,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:32:57,293 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:32:57,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:32:57,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:32:57,293 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_c47cf9db-6281-4e97-a461-064b60cd5eda/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21d3b5f5f45e838fe2a280802b5788520d014c57271d384acd297e13beb553d8 [2023-11-29 03:32:57,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:32:57,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:32:57,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:32:57,547 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:32:57,548 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:32:57,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2023-11-29 03:33:00,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:33:00,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:33:00,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c [2023-11-29 03:33:00,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/data/18496f1d2/8f49c711c974480ebd2bfc482c48e222/FLAGfee724737 [2023-11-29 03:33:00,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/data/18496f1d2/8f49c711c974480ebd2bfc482c48e222 [2023-11-29 03:33:00,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:33:00,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:33:00,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:33:00,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:33:00,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:33:00,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:33:00" (1/1) ... [2023-11-29 03:33:00,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f5503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:00, skipping insertion in model container [2023-11-29 03:33:00,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:33:00" (1/1) ... [2023-11-29 03:33:00,590 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:33:00,756 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_c47cf9db-6281-4e97-a461-064b60cd5eda/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c[1254,1267] [2023-11-29 03:33:00,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:33:00,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:33:00,923 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_c47cf9db-6281-4e97-a461-064b60cd5eda/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_ibuf.c[1254,1267] [2023-11-29 03:33:00,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:33:01,005 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:33:01,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01 WrapperNode [2023-11-29 03:33:01,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:33:01,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:33:01,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:33:01,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:33:01,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,289 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1930 [2023-11-29 03:33:01,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:33:01,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:33:01,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:33:01,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:33:01,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,377 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 03:33:01,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:33:01,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:33:01,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:33:01,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:33:01,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (1/1) ... [2023-11-29 03:33:01,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:33:01,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:33:01,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:33:01,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:33:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:33:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:33:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:33:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:33:01,744 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:33:01,746 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:33:03,316 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:33:03,382 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:33:03,382 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:33:03,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:33:03 BoogieIcfgContainer [2023-11-29 03:33:03,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:33:03,386 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:33:03,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:33:03,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:33:03,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:33:00" (1/3) ... [2023-11-29 03:33:03,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2e2575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:33:03, skipping insertion in model container [2023-11-29 03:33:03,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:33:01" (2/3) ... [2023-11-29 03:33:03,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2e2575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:33:03, skipping insertion in model container [2023-11-29 03:33:03,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:33:03" (3/3) ... [2023-11-29 03:33:03,393 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_ibuf.c [2023-11-29 03:33:03,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:33:03,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:33:03,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:33:03,485 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;@3be097ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:33:03,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:33:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 408 states have (on average 1.6666666666666667) internal successors, (680), 409 states have internal predecessors, (680), 0 states have call successors, (0), 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 03:33:03,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 03:33:03,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:03,502 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] [2023-11-29 03:33:03,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:03,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1347477357, now seen corresponding path program 1 times [2023-11-29 03:33:03,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:03,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289485690] [2023-11-29 03:33:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:04,328 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 03:33:04,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:04,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289485690] [2023-11-29 03:33:04,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289485690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:04,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:04,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:04,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359672113] [2023-11-29 03:33:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:04,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:33:04,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:33:04,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:04,369 INFO L87 Difference]: Start difference. First operand has 410 states, 408 states have (on average 1.6666666666666667) internal successors, (680), 409 states have internal predecessors, (680), 0 states have call successors, (0), 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 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 03:33:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:04,531 INFO L93 Difference]: Finished difference Result 1214 states and 2018 transitions. [2023-11-29 03:33:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:33:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-11-29 03:33:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:04,551 INFO L225 Difference]: With dead ends: 1214 [2023-11-29 03:33:04,552 INFO L226 Difference]: Without dead ends: 811 [2023-11-29 03:33:04,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:04,560 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 1856 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:04,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2208 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:04,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2023-11-29 03:33:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 411. [2023-11-29 03:33:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.6560975609756097) internal successors, (679), 410 states have internal predecessors, (679), 0 states have call successors, (0), 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 03:33:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 679 transitions. [2023-11-29 03:33:04,623 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 679 transitions. Word has length 52 [2023-11-29 03:33:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:04,623 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 679 transitions. [2023-11-29 03:33:04,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 03:33:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 679 transitions. [2023-11-29 03:33:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 03:33:04,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:04,626 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] [2023-11-29 03:33:04,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:33:04,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:04,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1402384667, now seen corresponding path program 1 times [2023-11-29 03:33:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:04,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228166895] [2023-11-29 03:33:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:05,206 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 03:33:05,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:05,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228166895] [2023-11-29 03:33:05,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228166895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:05,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:05,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:05,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818513368] [2023-11-29 03:33:05,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:05,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:33:05,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:05,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:33:05,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:33:05,210 INFO L87 Difference]: Start difference. First operand 411 states and 679 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 03:33:05,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:05,430 INFO L93 Difference]: Finished difference Result 1222 states and 2018 transitions. [2023-11-29 03:33:05,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:33:05,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-11-29 03:33:05,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:05,436 INFO L225 Difference]: With dead ends: 1222 [2023-11-29 03:33:05,437 INFO L226 Difference]: Without dead ends: 818 [2023-11-29 03:33:05,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:33:05,439 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 1916 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:05,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 2130 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:05,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-11-29 03:33:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 413. [2023-11-29 03:33:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.6529126213592233) internal successors, (681), 412 states have internal predecessors, (681), 0 states have call successors, (0), 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 03:33:05,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 681 transitions. [2023-11-29 03:33:05,458 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 681 transitions. Word has length 53 [2023-11-29 03:33:05,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:05,459 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 681 transitions. [2023-11-29 03:33:05,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 03:33:05,459 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 681 transitions. [2023-11-29 03:33:05,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 03:33:05,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:05,461 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] [2023-11-29 03:33:05,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:33:05,462 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:05,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:05,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2031031125, now seen corresponding path program 1 times [2023-11-29 03:33:05,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:05,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900694674] [2023-11-29 03:33:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:05,876 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 03:33:05,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:05,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900694674] [2023-11-29 03:33:05,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900694674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:05,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:05,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:33:05,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140187626] [2023-11-29 03:33:05,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:05,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:33:05,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:05,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:33:05,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:33:05,879 INFO L87 Difference]: Start difference. First operand 413 states and 681 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 03:33:06,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:06,047 INFO L93 Difference]: Finished difference Result 1241 states and 2047 transitions. [2023-11-29 03:33:06,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:33:06,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-11-29 03:33:06,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:06,053 INFO L225 Difference]: With dead ends: 1241 [2023-11-29 03:33:06,053 INFO L226 Difference]: Without dead ends: 835 [2023-11-29 03:33:06,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:33:06,056 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 3337 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3337 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:06,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3337 Valid, 2681 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:06,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-11-29 03:33:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 431. [2023-11-29 03:33:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.6488372093023256) internal successors, (709), 430 states have internal predecessors, (709), 0 states have call successors, (0), 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 03:33:06,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 709 transitions. [2023-11-29 03:33:06,069 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 709 transitions. Word has length 54 [2023-11-29 03:33:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:06,070 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 709 transitions. [2023-11-29 03:33:06,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 03:33:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 709 transitions. [2023-11-29 03:33:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 03:33:06,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:06,072 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] [2023-11-29 03:33:06,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:33:06,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:06,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1184427357, now seen corresponding path program 1 times [2023-11-29 03:33:06,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:06,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654485225] [2023-11-29 03:33:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:06,475 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 03:33:06,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654485225] [2023-11-29 03:33:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654485225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:06,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:06,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965339356] [2023-11-29 03:33:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:06,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:33:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:33:06,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:06,477 INFO L87 Difference]: Start difference. First operand 431 states and 709 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 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 03:33:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:06,692 INFO L93 Difference]: Finished difference Result 1633 states and 2691 transitions. [2023-11-29 03:33:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:33:06,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-11-29 03:33:06,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:06,699 INFO L225 Difference]: With dead ends: 1633 [2023-11-29 03:33:06,699 INFO L226 Difference]: Without dead ends: 1227 [2023-11-29 03:33:06,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:33:06,702 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 5167 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5167 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:06,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5167 Valid, 3365 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:06,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-11-29 03:33:06,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 451. [2023-11-29 03:33:06,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.6444444444444444) internal successors, (740), 450 states have internal predecessors, (740), 0 states have call successors, (0), 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 03:33:06,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 740 transitions. [2023-11-29 03:33:06,717 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 740 transitions. Word has length 55 [2023-11-29 03:33:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:06,718 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 740 transitions. [2023-11-29 03:33:06,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 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 03:33:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 740 transitions. [2023-11-29 03:33:06,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:33:06,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:06,719 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] [2023-11-29 03:33:06,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:33:06,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:06,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:06,720 INFO L85 PathProgramCache]: Analyzing trace with hash -602978037, now seen corresponding path program 1 times [2023-11-29 03:33:06,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:06,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434436344] [2023-11-29 03:33:06,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:06,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:07,027 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 03:33:07,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:07,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434436344] [2023-11-29 03:33:07,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434436344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:07,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:07,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:07,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804592192] [2023-11-29 03:33:07,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:07,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:33:07,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:07,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:33:07,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:07,031 INFO L87 Difference]: Start difference. First operand 451 states and 740 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:07,107 INFO L93 Difference]: Finished difference Result 1264 states and 2077 transitions. [2023-11-29 03:33:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:33:07,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-11-29 03:33:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:07,112 INFO L225 Difference]: With dead ends: 1264 [2023-11-29 03:33:07,112 INFO L226 Difference]: Without dead ends: 823 [2023-11-29 03:33:07,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:07,114 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 2657 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:07,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 2009 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2023-11-29 03:33:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 451. [2023-11-29 03:33:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.6422222222222222) internal successors, (739), 450 states have internal predecessors, (739), 0 states have call successors, (0), 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 03:33:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 739 transitions. [2023-11-29 03:33:07,126 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 739 transitions. Word has length 56 [2023-11-29 03:33:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:07,126 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 739 transitions. [2023-11-29 03:33:07,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 739 transitions. [2023-11-29 03:33:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 03:33:07,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:07,128 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] [2023-11-29 03:33:07,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:33:07,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:07,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:07,129 INFO L85 PathProgramCache]: Analyzing trace with hash 725201431, now seen corresponding path program 1 times [2023-11-29 03:33:07,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:07,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264722198] [2023-11-29 03:33:07,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:07,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:07,974 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 03:33:07,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:07,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264722198] [2023-11-29 03:33:07,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264722198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:07,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:07,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:33:07,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211695496] [2023-11-29 03:33:07,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:07,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:33:07,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:07,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:33:07,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:33:07,977 INFO L87 Difference]: Start difference. First operand 451 states and 739 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 03:33:09,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:09,537 INFO L93 Difference]: Finished difference Result 2892 states and 4744 transitions. [2023-11-29 03:33:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:33:09,537 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-29 03:33:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:09,550 INFO L225 Difference]: With dead ends: 2892 [2023-11-29 03:33:09,550 INFO L226 Difference]: Without dead ends: 2457 [2023-11-29 03:33:09,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-11-29 03:33:09,552 INFO L413 NwaCegarLoop]: 1302 mSDtfsCounter, 9243 mSDsluCounter, 11103 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9243 SdHoareTripleChecker+Valid, 12405 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:09,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9243 Valid, 12405 Invalid, 411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:33:09,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2023-11-29 03:33:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 463. [2023-11-29 03:33:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.6363636363636365) internal successors, (756), 462 states have internal predecessors, (756), 0 states have call successors, (0), 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 03:33:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 756 transitions. [2023-11-29 03:33:09,588 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 756 transitions. Word has length 57 [2023-11-29 03:33:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:09,588 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 756 transitions. [2023-11-29 03:33:09,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 03:33:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 756 transitions. [2023-11-29 03:33:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 03:33:09,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:09,590 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] [2023-11-29 03:33:09,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:33:09,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:09,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash 244121173, now seen corresponding path program 1 times [2023-11-29 03:33:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414710113] [2023-11-29 03:33:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:10,131 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 03:33:10,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:10,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414710113] [2023-11-29 03:33:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414710113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:10,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:10,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410016978] [2023-11-29 03:33:10,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:33:10,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:33:10,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:10,134 INFO L87 Difference]: Start difference. First operand 463 states and 756 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 03:33:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:10,337 INFO L93 Difference]: Finished difference Result 1651 states and 2715 transitions. [2023-11-29 03:33:10,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:33:10,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-11-29 03:33:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:10,344 INFO L225 Difference]: With dead ends: 1651 [2023-11-29 03:33:10,344 INFO L226 Difference]: Without dead ends: 1245 [2023-11-29 03:33:10,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:33:10,346 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 5100 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 3489 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:10,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 3489 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:10,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2023-11-29 03:33:10,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 486. [2023-11-29 03:33:10,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.6309278350515464) internal successors, (791), 485 states have internal predecessors, (791), 0 states have call successors, (0), 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 03:33:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 791 transitions. [2023-11-29 03:33:10,380 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 791 transitions. Word has length 57 [2023-11-29 03:33:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:10,381 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 791 transitions. [2023-11-29 03:33:10,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 03:33:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 791 transitions. [2023-11-29 03:33:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 03:33:10,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:10,382 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] [2023-11-29 03:33:10,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:33:10,383 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:10,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1478619029, now seen corresponding path program 1 times [2023-11-29 03:33:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593151367] [2023-11-29 03:33:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:10,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:10,753 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 03:33:10,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:10,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593151367] [2023-11-29 03:33:10,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593151367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:10,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:10,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:33:10,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118606235] [2023-11-29 03:33:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:10,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:33:10,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:10,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:33:10,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:33:10,756 INFO L87 Difference]: Start difference. First operand 486 states and 791 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:10,902 INFO L93 Difference]: Finished difference Result 1302 states and 2133 transitions. [2023-11-29 03:33:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:33:10,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-11-29 03:33:10,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:10,907 INFO L225 Difference]: With dead ends: 1302 [2023-11-29 03:33:10,907 INFO L226 Difference]: Without dead ends: 865 [2023-11-29 03:33:10,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:33:10,909 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 3338 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:10,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 2699 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:10,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2023-11-29 03:33:10,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 486. [2023-11-29 03:33:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.6288659793814433) internal successors, (790), 485 states have internal predecessors, (790), 0 states have call successors, (0), 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 03:33:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 790 transitions. [2023-11-29 03:33:10,924 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 790 transitions. Word has length 58 [2023-11-29 03:33:10,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:10,925 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 790 transitions. [2023-11-29 03:33:10,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:10,925 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 790 transitions. [2023-11-29 03:33:10,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:33:10,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:10,926 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] [2023-11-29 03:33:10,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:33:10,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:10,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1497888451, now seen corresponding path program 1 times [2023-11-29 03:33:10,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531978481] [2023-11-29 03:33:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:10,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:11,113 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 03:33:11,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:11,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531978481] [2023-11-29 03:33:11,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531978481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:11,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:11,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:11,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552776710] [2023-11-29 03:33:11,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:11,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:33:11,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:11,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:33:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:33:11,116 INFO L87 Difference]: Start difference. First operand 486 states and 790 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:11,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:11,144 INFO L93 Difference]: Finished difference Result 490 states and 794 transitions. [2023-11-29 03:33:11,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:33:11,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-11-29 03:33:11,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:11,147 INFO L225 Difference]: With dead ends: 490 [2023-11-29 03:33:11,148 INFO L226 Difference]: Without dead ends: 488 [2023-11-29 03:33:11,148 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 03:33:11,149 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 1 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:11,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2014 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:11,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-29 03:33:11,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-11-29 03:33:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 487 states have (on average 1.626283367556468) internal successors, (792), 487 states have internal predecessors, (792), 0 states have call successors, (0), 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 03:33:11,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 792 transitions. [2023-11-29 03:33:11,166 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 792 transitions. Word has length 59 [2023-11-29 03:33:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:11,166 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 792 transitions. [2023-11-29 03:33:11,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:11,167 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 792 transitions. [2023-11-29 03:33:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:33:11,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:11,168 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] [2023-11-29 03:33:11,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:33:11,168 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:11,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:11,169 INFO L85 PathProgramCache]: Analyzing trace with hash -808373039, now seen corresponding path program 1 times [2023-11-29 03:33:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:11,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867747785] [2023-11-29 03:33:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:11,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:11,542 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 03:33:11,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:11,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867747785] [2023-11-29 03:33:11,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867747785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:11,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:11,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:11,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071096359] [2023-11-29 03:33:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:11,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:33:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:11,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:33:11,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:11,544 INFO L87 Difference]: Start difference. First operand 488 states and 792 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:11,693 INFO L93 Difference]: Finished difference Result 1351 states and 2206 transitions. [2023-11-29 03:33:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:33:11,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-11-29 03:33:11,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:11,701 INFO L225 Difference]: With dead ends: 1351 [2023-11-29 03:33:11,701 INFO L226 Difference]: Without dead ends: 885 [2023-11-29 03:33:11,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:33:11,703 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 4010 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4010 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:11,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4010 Valid, 2728 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:11,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-11-29 03:33:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 485. [2023-11-29 03:33:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 1.621900826446281) internal successors, (785), 484 states have internal predecessors, (785), 0 states have call successors, (0), 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 03:33:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 785 transitions. [2023-11-29 03:33:11,722 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 785 transitions. Word has length 60 [2023-11-29 03:33:11,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:11,722 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 785 transitions. [2023-11-29 03:33:11,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:11,722 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 785 transitions. [2023-11-29 03:33:11,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:33:11,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:11,723 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] [2023-11-29 03:33:11,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:33:11,723 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:11,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:11,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1164451855, now seen corresponding path program 1 times [2023-11-29 03:33:11,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:11,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606122642] [2023-11-29 03:33:11,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:11,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:12,065 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 03:33:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:12,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606122642] [2023-11-29 03:33:12,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606122642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:12,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:12,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:33:12,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677768425] [2023-11-29 03:33:12,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:12,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:12,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:12,068 INFO L87 Difference]: Start difference. First operand 485 states and 785 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:33:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:12,515 INFO L93 Difference]: Finished difference Result 2669 states and 4350 transitions. [2023-11-29 03:33:12,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:12,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-11-29 03:33:12,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:12,527 INFO L225 Difference]: With dead ends: 2669 [2023-11-29 03:33:12,528 INFO L226 Difference]: Without dead ends: 2221 [2023-11-29 03:33:12,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:33:12,530 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 4622 mSDsluCounter, 7289 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4622 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:12,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4622 Valid, 8625 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2023-11-29 03:33:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 495. [2023-11-29 03:33:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.6133603238866396) internal successors, (797), 494 states have internal predecessors, (797), 0 states have call successors, (0), 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 03:33:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 797 transitions. [2023-11-29 03:33:12,557 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 797 transitions. Word has length 61 [2023-11-29 03:33:12,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:12,558 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 797 transitions. [2023-11-29 03:33:12,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:33:12,558 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 797 transitions. [2023-11-29 03:33:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 03:33:12,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:12,559 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] [2023-11-29 03:33:12,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:33:12,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:12,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1631631731, now seen corresponding path program 1 times [2023-11-29 03:33:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:12,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054952542] [2023-11-29 03:33:12,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:12,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:12,963 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 03:33:12,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054952542] [2023-11-29 03:33:12,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054952542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:12,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:12,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:33:12,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122885217] [2023-11-29 03:33:12,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:12,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:12,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:12,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:12,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:12,966 INFO L87 Difference]: Start difference. First operand 495 states and 797 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:33:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:13,242 INFO L93 Difference]: Finished difference Result 1325 states and 2155 transitions. [2023-11-29 03:33:13,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:33:13,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-11-29 03:33:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:13,249 INFO L225 Difference]: With dead ends: 1325 [2023-11-29 03:33:13,249 INFO L226 Difference]: Without dead ends: 875 [2023-11-29 03:33:13,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:33:13,251 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 4596 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4596 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:13,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4596 Valid, 2692 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-11-29 03:33:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 495. [2023-11-29 03:33:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.6093117408906883) internal successors, (795), 494 states have internal predecessors, (795), 0 states have call successors, (0), 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 03:33:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 795 transitions. [2023-11-29 03:33:13,275 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 795 transitions. Word has length 61 [2023-11-29 03:33:13,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:13,275 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 795 transitions. [2023-11-29 03:33:13,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:33:13,276 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 795 transitions. [2023-11-29 03:33:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:33:13,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:13,277 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] [2023-11-29 03:33:13,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:33:13,277 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:13,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:13,278 INFO L85 PathProgramCache]: Analyzing trace with hash -368989621, now seen corresponding path program 1 times [2023-11-29 03:33:13,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:13,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160595076] [2023-11-29 03:33:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:13,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:13,992 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 03:33:13,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:13,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160595076] [2023-11-29 03:33:13,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160595076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:13,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:13,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:33:13,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887354086] [2023-11-29 03:33:13,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:13,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:33:13,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:13,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:33:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:33:13,995 INFO L87 Difference]: Start difference. First operand 495 states and 795 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:14,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:14,463 INFO L93 Difference]: Finished difference Result 1742 states and 2820 transitions. [2023-11-29 03:33:14,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:33:14,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 03:33:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:14,469 INFO L225 Difference]: With dead ends: 1742 [2023-11-29 03:33:14,469 INFO L226 Difference]: Without dead ends: 1272 [2023-11-29 03:33:14,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:33:14,471 INFO L413 NwaCegarLoop]: 1283 mSDtfsCounter, 4002 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:14,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4002 Valid, 5890 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:33:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-29 03:33:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 497. [2023-11-29 03:33:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.6048387096774193) internal successors, (796), 496 states have internal predecessors, (796), 0 states have call successors, (0), 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 03:33:14,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 796 transitions. [2023-11-29 03:33:14,486 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 796 transitions. Word has length 62 [2023-11-29 03:33:14,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:14,487 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 796 transitions. [2023-11-29 03:33:14,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 796 transitions. [2023-11-29 03:33:14,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:33:14,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:14,488 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] [2023-11-29 03:33:14,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:33:14,488 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:14,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:14,488 INFO L85 PathProgramCache]: Analyzing trace with hash -74831247, now seen corresponding path program 1 times [2023-11-29 03:33:14,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:14,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696796021] [2023-11-29 03:33:14,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:14,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:14,624 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 03:33:14,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:14,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696796021] [2023-11-29 03:33:14,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696796021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:14,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:14,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:33:14,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383010197] [2023-11-29 03:33:14,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:14,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:33:14,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:14,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:33:14,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:33:14,627 INFO L87 Difference]: Start difference. First operand 497 states and 796 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:14,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:14,743 INFO L93 Difference]: Finished difference Result 1324 states and 2143 transitions. [2023-11-29 03:33:14,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:33:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 03:33:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:14,747 INFO L225 Difference]: With dead ends: 1324 [2023-11-29 03:33:14,747 INFO L226 Difference]: Without dead ends: 853 [2023-11-29 03:33:14,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 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 03:33:14,749 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 3290 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:14,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3290 Valid, 2674 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-11-29 03:33:14,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 493. [2023-11-29 03:33:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.6016260162601625) internal successors, (788), 492 states have internal predecessors, (788), 0 states have call successors, (0), 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 03:33:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 788 transitions. [2023-11-29 03:33:14,763 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 788 transitions. Word has length 62 [2023-11-29 03:33:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:14,764 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 788 transitions. [2023-11-29 03:33:14,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 788 transitions. [2023-11-29 03:33:14,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:33:14,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:14,765 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] [2023-11-29 03:33:14,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 03:33:14,765 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:14,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash -856475369, now seen corresponding path program 1 times [2023-11-29 03:33:14,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:14,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524880633] [2023-11-29 03:33:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:14,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:15,125 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 03:33:15,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:15,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524880633] [2023-11-29 03:33:15,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524880633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:15,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:15,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:33:15,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517435215] [2023-11-29 03:33:15,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:15,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:33:15,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:15,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:33:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:33:15,127 INFO L87 Difference]: Start difference. First operand 493 states and 788 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:15,898 INFO L93 Difference]: Finished difference Result 1806 states and 2928 transitions. [2023-11-29 03:33:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:33:15,898 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 03:33:15,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:15,904 INFO L225 Difference]: With dead ends: 1806 [2023-11-29 03:33:15,904 INFO L226 Difference]: Without dead ends: 1336 [2023-11-29 03:33:15,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:33:15,906 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 5930 mSDsluCounter, 5219 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5930 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:15,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5930 Valid, 5883 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:33:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2023-11-29 03:33:15,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 501. [2023-11-29 03:33:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.594) internal successors, (797), 500 states have internal predecessors, (797), 0 states have call successors, (0), 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 03:33:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 797 transitions. [2023-11-29 03:33:15,923 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 797 transitions. Word has length 62 [2023-11-29 03:33:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:15,924 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 797 transitions. [2023-11-29 03:33:15,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 797 transitions. [2023-11-29 03:33:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:33:15,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:15,925 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] [2023-11-29 03:33:15,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 03:33:15,925 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:15,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash 691526017, now seen corresponding path program 1 times [2023-11-29 03:33:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940707005] [2023-11-29 03:33:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:16,725 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 03:33:16,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:16,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940707005] [2023-11-29 03:33:16,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940707005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:16,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:16,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:33:16,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509994206] [2023-11-29 03:33:16,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:16,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:33:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:33:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:33:16,730 INFO L87 Difference]: Start difference. First operand 501 states and 797 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 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 03:33:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:16,899 INFO L93 Difference]: Finished difference Result 1334 states and 2148 transitions. [2023-11-29 03:33:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:33:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-11-29 03:33:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:16,905 INFO L225 Difference]: With dead ends: 1334 [2023-11-29 03:33:16,905 INFO L226 Difference]: Without dead ends: 845 [2023-11-29 03:33:16,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:33:16,907 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 3256 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 5353 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:16,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 5353 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:16,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-11-29 03:33:16,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 487. [2023-11-29 03:33:16,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.6008230452674896) internal successors, (778), 486 states have internal predecessors, (778), 0 states have call successors, (0), 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 03:33:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 778 transitions. [2023-11-29 03:33:16,921 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 778 transitions. Word has length 63 [2023-11-29 03:33:16,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:16,922 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 778 transitions. [2023-11-29 03:33:16,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 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 03:33:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 778 transitions. [2023-11-29 03:33:16,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:33:16,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:16,922 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] [2023-11-29 03:33:16,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 03:33:16,923 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:16,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:16,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1587980339, now seen corresponding path program 1 times [2023-11-29 03:33:16,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:16,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837713602] [2023-11-29 03:33:16,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:17,158 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 03:33:17,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:17,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837713602] [2023-11-29 03:33:17,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837713602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:17,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:17,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:33:17,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435175135] [2023-11-29 03:33:17,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:17,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:17,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:17,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:17,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:17,161 INFO L87 Difference]: Start difference. First operand 487 states and 778 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:17,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:17,539 INFO L93 Difference]: Finished difference Result 2677 states and 4345 transitions. [2023-11-29 03:33:17,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:17,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 03:33:17,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:17,549 INFO L225 Difference]: With dead ends: 2677 [2023-11-29 03:33:17,549 INFO L226 Difference]: Without dead ends: 2222 [2023-11-29 03:33:17,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:33:17,552 INFO L413 NwaCegarLoop]: 1352 mSDtfsCounter, 3974 mSDsluCounter, 6717 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3974 SdHoareTripleChecker+Valid, 8069 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:17,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3974 Valid, 8069 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:17,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2023-11-29 03:33:17,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 497. [2023-11-29 03:33:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.592741935483871) internal successors, (790), 496 states have internal predecessors, (790), 0 states have call successors, (0), 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 03:33:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 790 transitions. [2023-11-29 03:33:17,573 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 790 transitions. Word has length 64 [2023-11-29 03:33:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:17,573 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 790 transitions. [2023-11-29 03:33:17,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:17,573 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 790 transitions. [2023-11-29 03:33:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:33:17,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:17,574 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] [2023-11-29 03:33:17,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 03:33:17,574 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:17,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:17,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1164333617, now seen corresponding path program 1 times [2023-11-29 03:33:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:17,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223294440] [2023-11-29 03:33:17,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:17,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:18,544 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 03:33:18,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:18,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223294440] [2023-11-29 03:33:18,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223294440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:18,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:18,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 03:33:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729959994] [2023-11-29 03:33:18,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:18,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:33:18,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:18,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:33:18,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:33:18,547 INFO L87 Difference]: Start difference. First operand 497 states and 790 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:19,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:19,468 INFO L93 Difference]: Finished difference Result 1342 states and 2168 transitions. [2023-11-29 03:33:19,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:33:19,468 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 03:33:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:19,472 INFO L225 Difference]: With dead ends: 1342 [2023-11-29 03:33:19,472 INFO L226 Difference]: Without dead ends: 876 [2023-11-29 03:33:19,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:33:19,473 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 5848 mSDsluCounter, 7291 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5848 SdHoareTripleChecker+Valid, 7961 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:19,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5848 Valid, 7961 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:33:19,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2023-11-29 03:33:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 492. [2023-11-29 03:33:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.5947046843177188) internal successors, (783), 491 states have internal predecessors, (783), 0 states have call successors, (0), 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 03:33:19,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 783 transitions. [2023-11-29 03:33:19,494 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 783 transitions. Word has length 64 [2023-11-29 03:33:19,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:19,494 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 783 transitions. [2023-11-29 03:33:19,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 13 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:19,494 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 783 transitions. [2023-11-29 03:33:19,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:33:19,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:19,495 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] [2023-11-29 03:33:19,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 03:33:19,496 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:19,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:19,496 INFO L85 PathProgramCache]: Analyzing trace with hash -713719707, now seen corresponding path program 1 times [2023-11-29 03:33:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:19,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105511613] [2023-11-29 03:33:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:19,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:19,817 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 03:33:19,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:19,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105511613] [2023-11-29 03:33:19,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105511613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:19,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:19,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:33:19,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130920097] [2023-11-29 03:33:19,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:19,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:19,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:19,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:19,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:19,819 INFO L87 Difference]: Start difference. First operand 492 states and 783 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:20,186 INFO L93 Difference]: Finished difference Result 2726 states and 4413 transitions. [2023-11-29 03:33:20,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:20,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-29 03:33:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:20,197 INFO L225 Difference]: With dead ends: 2726 [2023-11-29 03:33:20,197 INFO L226 Difference]: Without dead ends: 2272 [2023-11-29 03:33:20,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:33:20,199 INFO L413 NwaCegarLoop]: 1355 mSDtfsCounter, 3980 mSDsluCounter, 5427 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3980 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:20,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3980 Valid, 6782 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:20,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2023-11-29 03:33:20,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 502. [2023-11-29 03:33:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 501 states have (on average 1.5888223552894212) internal successors, (796), 501 states have internal predecessors, (796), 0 states have call successors, (0), 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 03:33:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 796 transitions. [2023-11-29 03:33:20,224 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 796 transitions. Word has length 65 [2023-11-29 03:33:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:20,224 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 796 transitions. [2023-11-29 03:33:20,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 796 transitions. [2023-11-29 03:33:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:33:20,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:20,225 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] [2023-11-29 03:33:20,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 03:33:20,225 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:20,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:20,226 INFO L85 PathProgramCache]: Analyzing trace with hash -786106265, now seen corresponding path program 1 times [2023-11-29 03:33:20,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:20,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301155564] [2023-11-29 03:33:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:20,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:20,537 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 03:33:20,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:20,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301155564] [2023-11-29 03:33:20,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301155564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:20,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:20,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:20,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069875792] [2023-11-29 03:33:20,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:20,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:33:20,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:33:20,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:33:20,540 INFO L87 Difference]: Start difference. First operand 502 states and 796 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:20,632 INFO L93 Difference]: Finished difference Result 1364 states and 2199 transitions. [2023-11-29 03:33:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:33:20,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-29 03:33:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:20,636 INFO L225 Difference]: With dead ends: 1364 [2023-11-29 03:33:20,636 INFO L226 Difference]: Without dead ends: 902 [2023-11-29 03:33:20,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:20,638 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 2638 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:20,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 2016 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:20,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-11-29 03:33:20,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 502. [2023-11-29 03:33:20,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 501 states have (on average 1.5848303393213572) internal successors, (794), 501 states have internal predecessors, (794), 0 states have call successors, (0), 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 03:33:20,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 794 transitions. [2023-11-29 03:33:20,657 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 794 transitions. Word has length 65 [2023-11-29 03:33:20,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:20,657 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 794 transitions. [2023-11-29 03:33:20,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:20,657 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 794 transitions. [2023-11-29 03:33:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:33:20,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:20,658 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] [2023-11-29 03:33:20,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 03:33:20,658 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:20,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1108086493, now seen corresponding path program 1 times [2023-11-29 03:33:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:20,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987417048] [2023-11-29 03:33:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:21,506 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 03:33:21,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:21,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987417048] [2023-11-29 03:33:21,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987417048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:21,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:21,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:33:21,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688771651] [2023-11-29 03:33:21,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:21,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:33:21,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:21,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:33:21,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:33:21,509 INFO L87 Difference]: Start difference. First operand 502 states and 794 transitions. Second operand has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:22,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:22,382 INFO L93 Difference]: Finished difference Result 1771 states and 2864 transitions. [2023-11-29 03:33:22,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:33:22,383 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-29 03:33:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:22,385 INFO L225 Difference]: With dead ends: 1771 [2023-11-29 03:33:22,385 INFO L226 Difference]: Without dead ends: 1306 [2023-11-29 03:33:22,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=241, Invalid=815, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 03:33:22,387 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 7742 mSDsluCounter, 13598 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7742 SdHoareTripleChecker+Valid, 14274 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:22,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7742 Valid, 14274 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:33:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2023-11-29 03:33:22,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 497. [2023-11-29 03:33:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.5866935483870968) internal successors, (787), 496 states have internal predecessors, (787), 0 states have call successors, (0), 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 03:33:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 787 transitions. [2023-11-29 03:33:22,406 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 787 transitions. Word has length 65 [2023-11-29 03:33:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:22,406 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 787 transitions. [2023-11-29 03:33:22,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 16 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:22,406 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 787 transitions. [2023-11-29 03:33:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 03:33:22,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:22,407 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] [2023-11-29 03:33:22,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 03:33:22,408 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:22,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1862088435, now seen corresponding path program 1 times [2023-11-29 03:33:22,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:22,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719870487] [2023-11-29 03:33:22,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:22,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:22,632 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 03:33:22,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:22,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719870487] [2023-11-29 03:33:22,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719870487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:22,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:22,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:33:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629575233] [2023-11-29 03:33:22,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:22,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:22,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:22,634 INFO L87 Difference]: Start difference. First operand 497 states and 787 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:23,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:23,020 INFO L93 Difference]: Finished difference Result 2751 states and 4444 transitions. [2023-11-29 03:33:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-29 03:33:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:23,024 INFO L225 Difference]: With dead ends: 2751 [2023-11-29 03:33:23,025 INFO L226 Difference]: Without dead ends: 2304 [2023-11-29 03:33:23,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:33:23,027 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 3966 mSDsluCounter, 6129 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 7495 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:23,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3966 Valid, 7495 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2023-11-29 03:33:23,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 516. [2023-11-29 03:33:23,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.5805825242718448) internal successors, (814), 515 states have internal predecessors, (814), 0 states have call successors, (0), 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 03:33:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 814 transitions. [2023-11-29 03:33:23,048 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 814 transitions. Word has length 66 [2023-11-29 03:33:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:23,048 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 814 transitions. [2023-11-29 03:33:23,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 814 transitions. [2023-11-29 03:33:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 03:33:23,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:23,049 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] [2023-11-29 03:33:23,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 03:33:23,050 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:23,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:23,050 INFO L85 PathProgramCache]: Analyzing trace with hash -634613775, now seen corresponding path program 1 times [2023-11-29 03:33:23,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:23,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997924497] [2023-11-29 03:33:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:23,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:23,210 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 03:33:23,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:23,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997924497] [2023-11-29 03:33:23,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997924497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:23,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:23,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:33:23,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973603633] [2023-11-29 03:33:23,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:23,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:33:23,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:23,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:33:23,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:33:23,213 INFO L87 Difference]: Start difference. First operand 516 states and 814 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:23,312 INFO L93 Difference]: Finished difference Result 1387 states and 2230 transitions. [2023-11-29 03:33:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:33:23,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-29 03:33:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:23,314 INFO L225 Difference]: With dead ends: 1387 [2023-11-29 03:33:23,314 INFO L226 Difference]: Without dead ends: 919 [2023-11-29 03:33:23,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:33:23,315 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 3274 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3274 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:23,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3274 Valid, 2693 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:23,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-29 03:33:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 508. [2023-11-29 03:33:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 507 states have (on average 1.5739644970414202) internal successors, (798), 507 states have internal predecessors, (798), 0 states have call successors, (0), 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 03:33:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 798 transitions. [2023-11-29 03:33:23,330 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 798 transitions. Word has length 66 [2023-11-29 03:33:23,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:23,330 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 798 transitions. [2023-11-29 03:33:23,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:23,331 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 798 transitions. [2023-11-29 03:33:23,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 03:33:23,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:23,331 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] [2023-11-29 03:33:23,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 03:33:23,332 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:23,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1160488561, now seen corresponding path program 1 times [2023-11-29 03:33:23,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:23,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599295909] [2023-11-29 03:33:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:23,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:23,910 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 03:33:23,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599295909] [2023-11-29 03:33:23,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599295909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:23,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:23,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:33:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775838933] [2023-11-29 03:33:23,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:23,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:33:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:23,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:33:23,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:33:23,912 INFO L87 Difference]: Start difference. First operand 508 states and 798 transitions. Second operand has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:26,478 INFO L93 Difference]: Finished difference Result 4804 states and 7792 transitions. [2023-11-29 03:33:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 03:33:26,479 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-29 03:33:26,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:26,484 INFO L225 Difference]: With dead ends: 4804 [2023-11-29 03:33:26,485 INFO L226 Difference]: Without dead ends: 4341 [2023-11-29 03:33:26,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=759, Invalid=2901, Unknown=0, NotChecked=0, Total=3660 [2023-11-29 03:33:26,487 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 13096 mSDsluCounter, 20124 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13096 SdHoareTripleChecker+Valid, 20873 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:26,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13096 Valid, 20873 Invalid, 840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:33:26,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2023-11-29 03:33:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 537. [2023-11-29 03:33:26,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.5708955223880596) internal successors, (842), 536 states have internal predecessors, (842), 0 states have call successors, (0), 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 03:33:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 842 transitions. [2023-11-29 03:33:26,516 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 842 transitions. Word has length 66 [2023-11-29 03:33:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:26,516 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 842 transitions. [2023-11-29 03:33:26,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 842 transitions. [2023-11-29 03:33:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 03:33:26,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:26,517 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] [2023-11-29 03:33:26,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 03:33:26,518 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:26,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:26,518 INFO L85 PathProgramCache]: Analyzing trace with hash -392351477, now seen corresponding path program 1 times [2023-11-29 03:33:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:26,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56905921] [2023-11-29 03:33:26,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:26,718 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 03:33:26,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:26,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56905921] [2023-11-29 03:33:26,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56905921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:26,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:26,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:33:26,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996834843] [2023-11-29 03:33:26,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:26,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:26,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:26,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:26,720 INFO L87 Difference]: Start difference. First operand 537 states and 842 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:27,078 INFO L93 Difference]: Finished difference Result 2961 states and 4750 transitions. [2023-11-29 03:33:27,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-29 03:33:27,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:27,083 INFO L225 Difference]: With dead ends: 2961 [2023-11-29 03:33:27,083 INFO L226 Difference]: Without dead ends: 2481 [2023-11-29 03:33:27,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:33:27,085 INFO L413 NwaCegarLoop]: 1373 mSDtfsCounter, 3967 mSDsluCounter, 6212 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3967 SdHoareTripleChecker+Valid, 7585 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:27,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3967 Valid, 7585 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2023-11-29 03:33:27,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 557. [2023-11-29 03:33:27,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 1.5629496402877698) internal successors, (869), 556 states have internal predecessors, (869), 0 states have call successors, (0), 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 03:33:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 869 transitions. [2023-11-29 03:33:27,115 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 869 transitions. Word has length 67 [2023-11-29 03:33:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:27,115 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 869 transitions. [2023-11-29 03:33:27,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 869 transitions. [2023-11-29 03:33:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 03:33:27,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:27,116 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] [2023-11-29 03:33:27,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 03:33:27,117 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:27,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash 952612773, now seen corresponding path program 1 times [2023-11-29 03:33:27,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:27,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180019448] [2023-11-29 03:33:27,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:27,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:27,398 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 03:33:27,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:27,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180019448] [2023-11-29 03:33:27,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180019448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:27,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:27,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:27,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104317477] [2023-11-29 03:33:27,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:27,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:33:27,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:27,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:33:27,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:33:27,401 INFO L87 Difference]: Start difference. First operand 557 states and 869 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:27,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:27,588 INFO L93 Difference]: Finished difference Result 1991 states and 3183 transitions. [2023-11-29 03:33:27,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:33:27,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-29 03:33:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:27,590 INFO L225 Difference]: With dead ends: 1991 [2023-11-29 03:33:27,590 INFO L226 Difference]: Without dead ends: 1488 [2023-11-29 03:33:27,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:33:27,592 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 5242 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5242 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:27,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5242 Valid, 3418 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2023-11-29 03:33:27,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 551. [2023-11-29 03:33:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 1.5581818181818181) internal successors, (857), 550 states have internal predecessors, (857), 0 states have call successors, (0), 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 03:33:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 857 transitions. [2023-11-29 03:33:27,617 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 857 transitions. Word has length 67 [2023-11-29 03:33:27,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:27,617 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 857 transitions. [2023-11-29 03:33:27,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:27,617 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 857 transitions. [2023-11-29 03:33:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 03:33:27,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:27,618 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] [2023-11-29 03:33:27,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 03:33:27,619 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:27,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash -526364983, now seen corresponding path program 1 times [2023-11-29 03:33:27,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:27,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338783008] [2023-11-29 03:33:27,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:27,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:28,919 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 03:33:28,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:28,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338783008] [2023-11-29 03:33:28,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338783008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:28,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:28,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2023-11-29 03:33:28,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130715802] [2023-11-29 03:33:28,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:28,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 03:33:28,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:28,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 03:33:28,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2023-11-29 03:33:28,921 INFO L87 Difference]: Start difference. First operand 551 states and 857 transitions. Second operand has 25 states, 25 states have (on average 2.68) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:32,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:32,336 INFO L93 Difference]: Finished difference Result 1953 states and 3124 transitions. [2023-11-29 03:33:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 03:33:32,337 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-29 03:33:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:32,338 INFO L225 Difference]: With dead ends: 1953 [2023-11-29 03:33:32,339 INFO L226 Difference]: Without dead ends: 1455 [2023-11-29 03:33:32,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=621, Invalid=2685, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 03:33:32,340 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 10964 mSDsluCounter, 20076 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10964 SdHoareTripleChecker+Valid, 20765 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:32,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10964 Valid, 20765 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:33:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2023-11-29 03:33:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 544. [2023-11-29 03:33:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 543 states have (on average 1.561694290976059) internal successors, (848), 543 states have internal predecessors, (848), 0 states have call successors, (0), 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 03:33:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 848 transitions. [2023-11-29 03:33:32,356 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 848 transitions. Word has length 67 [2023-11-29 03:33:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:32,357 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 848 transitions. [2023-11-29 03:33:32,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 848 transitions. [2023-11-29 03:33:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:33:32,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:32,357 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] [2023-11-29 03:33:32,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 03:33:32,358 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:32,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1678484505, now seen corresponding path program 1 times [2023-11-29 03:33:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:32,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051198463] [2023-11-29 03:33:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:32,602 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 03:33:32,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:32,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051198463] [2023-11-29 03:33:32,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051198463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:32,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:32,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:33:32,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695731615] [2023-11-29 03:33:32,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:32,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:33:32,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:32,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:33:32,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:33:32,604 INFO L87 Difference]: Start difference. First operand 544 states and 848 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:32,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:32,987 INFO L93 Difference]: Finished difference Result 2988 states and 4787 transitions. [2023-11-29 03:33:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:33:32,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-29 03:33:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:32,992 INFO L225 Difference]: With dead ends: 2988 [2023-11-29 03:33:32,992 INFO L226 Difference]: Without dead ends: 2503 [2023-11-29 03:33:32,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:33:32,994 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 4609 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:32,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4609 Valid, 5621 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2503 states. [2023-11-29 03:33:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2503 to 557. [2023-11-29 03:33:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 1.5575539568345325) internal successors, (866), 556 states have internal predecessors, (866), 0 states have call successors, (0), 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 03:33:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 866 transitions. [2023-11-29 03:33:33,027 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 866 transitions. Word has length 68 [2023-11-29 03:33:33,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:33,027 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 866 transitions. [2023-11-29 03:33:33,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 866 transitions. [2023-11-29 03:33:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:33:33,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:33,028 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] [2023-11-29 03:33:33,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 03:33:33,028 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:33,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:33,029 INFO L85 PathProgramCache]: Analyzing trace with hash -498278143, now seen corresponding path program 1 times [2023-11-29 03:33:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:33,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319013032] [2023-11-29 03:33:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:33,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:33,156 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 03:33:33,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:33,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319013032] [2023-11-29 03:33:33,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319013032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:33,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:33,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:33:33,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890636747] [2023-11-29 03:33:33,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:33,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:33:33,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:33:33,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:33:33,158 INFO L87 Difference]: Start difference. First operand 557 states and 866 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:33,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:33,195 INFO L93 Difference]: Finished difference Result 1053 states and 1665 transitions. [2023-11-29 03:33:33,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:33:33,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-29 03:33:33,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:33,197 INFO L225 Difference]: With dead ends: 1053 [2023-11-29 03:33:33,197 INFO L226 Difference]: Without dead ends: 560 [2023-11-29 03:33:33,198 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 03:33:33,199 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 1 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:33,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2012 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:33:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-29 03:33:33,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2023-11-29 03:33:33,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.5555555555555556) internal successors, (868), 558 states have internal predecessors, (868), 0 states have call successors, (0), 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 03:33:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 868 transitions. [2023-11-29 03:33:33,222 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 868 transitions. Word has length 68 [2023-11-29 03:33:33,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:33,223 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 868 transitions. [2023-11-29 03:33:33,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 868 transitions. [2023-11-29 03:33:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:33:33,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:33,224 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] [2023-11-29 03:33:33,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 03:33:33,224 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:33,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:33,224 INFO L85 PathProgramCache]: Analyzing trace with hash -114512243, now seen corresponding path program 1 times [2023-11-29 03:33:33,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:33,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239490359] [2023-11-29 03:33:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:33,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:33,471 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 03:33:33,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:33,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239490359] [2023-11-29 03:33:33,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239490359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:33,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:33,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:33:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170214940] [2023-11-29 03:33:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:33:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:33,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:33:33,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:33:33,474 INFO L87 Difference]: Start difference. First operand 559 states and 868 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:33,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:33,631 INFO L93 Difference]: Finished difference Result 2070 states and 3295 transitions. [2023-11-29 03:33:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:33:33,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-29 03:33:33,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:33,634 INFO L225 Difference]: With dead ends: 2070 [2023-11-29 03:33:33,635 INFO L226 Difference]: Without dead ends: 1575 [2023-11-29 03:33:33,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:33:33,636 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3894 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3894 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:33,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3894 Valid, 2901 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:33:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2023-11-29 03:33:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 604. [2023-11-29 03:33:33,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 603 states have (on average 1.5472636815920398) internal successors, (933), 603 states have internal predecessors, (933), 0 states have call successors, (0), 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 03:33:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 933 transitions. [2023-11-29 03:33:33,664 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 933 transitions. Word has length 68 [2023-11-29 03:33:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:33,664 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 933 transitions. [2023-11-29 03:33:33,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 933 transitions. [2023-11-29 03:33:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:33:33,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:33,665 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] [2023-11-29 03:33:33,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 03:33:33,665 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:33,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:33,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1028134889, now seen corresponding path program 1 times [2023-11-29 03:33:33,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:33,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572671329] [2023-11-29 03:33:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:33,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:35,340 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 03:33:35,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:35,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572671329] [2023-11-29 03:33:35,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572671329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:35,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:35,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2023-11-29 03:33:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85406909] [2023-11-29 03:33:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:35,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 03:33:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:35,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 03:33:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=698, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:33:35,343 INFO L87 Difference]: Start difference. First operand 604 states and 933 transitions. Second operand has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:51,388 INFO L93 Difference]: Finished difference Result 1657 states and 2621 transitions. [2023-11-29 03:33:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 03:33:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-11-29 03:33:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:51,391 INFO L225 Difference]: With dead ends: 1657 [2023-11-29 03:33:51,391 INFO L226 Difference]: Without dead ends: 1112 [2023-11-29 03:33:51,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=789, Invalid=3501, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 03:33:51,394 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 11532 mSDsluCounter, 15169 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11532 SdHoareTripleChecker+Valid, 15856 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:51,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11532 Valid, 15856 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 03:33:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-11-29 03:33:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 599. [2023-11-29 03:33:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 1.5501672240802675) internal successors, (927), 598 states have internal predecessors, (927), 0 states have call successors, (0), 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 03:33:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 927 transitions. [2023-11-29 03:33:51,418 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 927 transitions. Word has length 68 [2023-11-29 03:33:51,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:51,419 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 927 transitions. [2023-11-29 03:33:51,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:33:51,419 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 927 transitions. [2023-11-29 03:33:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 03:33:51,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:51,420 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] [2023-11-29 03:33:51,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 03:33:51,420 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:51,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:51,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1522814573, now seen corresponding path program 1 times [2023-11-29 03:33:51,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:51,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947844649] [2023-11-29 03:33:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:51,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:52,660 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 03:33:52,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:52,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947844649] [2023-11-29 03:33:52,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947844649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:52,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:52,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2023-11-29 03:33:52,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244025986] [2023-11-29 03:33:52,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:52,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 03:33:52,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:52,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 03:33:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=866, Unknown=0, NotChecked=0, Total=930 [2023-11-29 03:33:52,662 INFO L87 Difference]: Start difference. First operand 599 states and 927 transitions. Second operand has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 30 states have internal predecessors, (69), 0 states have call successors, (0), 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 03:33:57,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:33:57,319 INFO L93 Difference]: Finished difference Result 2196 states and 3485 transitions. [2023-11-29 03:33:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 03:33:57,320 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 30 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-11-29 03:33:57,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:33:57,322 INFO L225 Difference]: With dead ends: 2196 [2023-11-29 03:33:57,323 INFO L226 Difference]: Without dead ends: 1656 [2023-11-29 03:33:57,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=977, Invalid=4425, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 03:33:57,325 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 12886 mSDsluCounter, 27488 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12886 SdHoareTripleChecker+Valid, 28179 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:33:57,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12886 Valid, 28179 Invalid, 725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:33:57,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2023-11-29 03:33:57,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 602. [2023-11-29 03:33:57,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 601 states have (on average 1.5474209650582362) internal successors, (930), 601 states have internal predecessors, (930), 0 states have call successors, (0), 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 03:33:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 930 transitions. [2023-11-29 03:33:57,343 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 930 transitions. Word has length 69 [2023-11-29 03:33:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:33:57,343 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 930 transitions. [2023-11-29 03:33:57,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 30 states have internal predecessors, (69), 0 states have call successors, (0), 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 03:33:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 930 transitions. [2023-11-29 03:33:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 03:33:57,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:33:57,344 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] [2023-11-29 03:33:57,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 03:33:57,345 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:33:57,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:33:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1915841583, now seen corresponding path program 1 times [2023-11-29 03:33:57,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:33:57,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65752679] [2023-11-29 03:33:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:33:57,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:33:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:33:58,453 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 03:33:58,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:33:58,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65752679] [2023-11-29 03:33:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65752679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:33:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:33:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2023-11-29 03:33:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727233058] [2023-11-29 03:33:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:33:58,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 03:33:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:33:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 03:33:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=869, Unknown=0, NotChecked=0, Total=930 [2023-11-29 03:33:58,455 INFO L87 Difference]: Start difference. First operand 602 states and 930 transitions. Second operand has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 30 states have internal predecessors, (69), 0 states have call successors, (0), 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 03:34:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:03,493 INFO L93 Difference]: Finished difference Result 1673 states and 2646 transitions. [2023-11-29 03:34:03,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 03:34:03,493 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 30 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-11-29 03:34:03,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:03,495 INFO L225 Difference]: With dead ends: 1673 [2023-11-29 03:34:03,495 INFO L226 Difference]: Without dead ends: 1133 [2023-11-29 03:34:03,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=959, Invalid=4443, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 03:34:03,498 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 12714 mSDsluCounter, 18021 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12714 SdHoareTripleChecker+Valid, 18716 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:03,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12714 Valid, 18716 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:34:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-11-29 03:34:03,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 604. [2023-11-29 03:34:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 603 states have (on average 1.5456053067993367) internal successors, (932), 603 states have internal predecessors, (932), 0 states have call successors, (0), 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 03:34:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 932 transitions. [2023-11-29 03:34:03,517 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 932 transitions. Word has length 69 [2023-11-29 03:34:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:03,517 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 932 transitions. [2023-11-29 03:34:03,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.225806451612903) internal successors, (69), 30 states have internal predecessors, (69), 0 states have call successors, (0), 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 03:34:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 932 transitions. [2023-11-29 03:34:03,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-11-29 03:34:03,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:03,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:03,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 03:34:03,521 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:03,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1453270853, now seen corresponding path program 1 times [2023-11-29 03:34:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120996289] [2023-11-29 03:34:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:03,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:05,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:05,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120996289] [2023-11-29 03:34:05,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120996289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:05,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:05,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:34:05,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291358971] [2023-11-29 03:34:05,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:05,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:34:05,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:05,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:34:05,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:34:05,287 INFO L87 Difference]: Start difference. First operand 604 states and 932 transitions. Second operand has 8 states, 8 states have (on average 42.125) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 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 03:34:05,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:05,507 INFO L93 Difference]: Finished difference Result 2183 states and 3487 transitions. [2023-11-29 03:34:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:34:05,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 42.125) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 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 337 [2023-11-29 03:34:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:05,510 INFO L225 Difference]: With dead ends: 2183 [2023-11-29 03:34:05,510 INFO L226 Difference]: Without dead ends: 1643 [2023-11-29 03:34:05,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:34:05,511 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 4492 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4492 SdHoareTripleChecker+Valid, 5014 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:05,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4492 Valid, 5014 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2023-11-29 03:34:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 907. [2023-11-29 03:34:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 906 states have (on average 1.5805739514348787) internal successors, (1432), 906 states have internal predecessors, (1432), 0 states have call successors, (0), 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 03:34:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1432 transitions. [2023-11-29 03:34:05,531 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1432 transitions. Word has length 337 [2023-11-29 03:34:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:05,532 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 1432 transitions. [2023-11-29 03:34:05,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 42.125) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 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 03:34:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1432 transitions. [2023-11-29 03:34:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-11-29 03:34:05,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:05,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:05,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 03:34:05,535 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:05,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:05,535 INFO L85 PathProgramCache]: Analyzing trace with hash -267386669, now seen corresponding path program 1 times [2023-11-29 03:34:05,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:05,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687891154] [2023-11-29 03:34:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:05,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:34:08,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:08,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687891154] [2023-11-29 03:34:08,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687891154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:08,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:08,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:34:08,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248728909] [2023-11-29 03:34:08,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:08,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:34:08,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:08,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:34:08,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:34:08,675 INFO L87 Difference]: Start difference. First operand 907 states and 1432 transitions. Second operand has 10 states, 10 states have (on average 33.8) internal successors, (338), 10 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:09,402 INFO L93 Difference]: Finished difference Result 3217 states and 5118 transitions. [2023-11-29 03:34:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:34:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.8) internal successors, (338), 10 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2023-11-29 03:34:09,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:09,405 INFO L225 Difference]: With dead ends: 3217 [2023-11-29 03:34:09,405 INFO L226 Difference]: Without dead ends: 2677 [2023-11-29 03:34:09,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:34:09,406 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 8069 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8069 SdHoareTripleChecker+Valid, 3356 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:09,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8069 Valid, 3356 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:34:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2023-11-29 03:34:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 1006. [2023-11-29 03:34:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1005 states have (on average 1.5731343283582089) internal successors, (1581), 1005 states have internal predecessors, (1581), 0 states have call successors, (0), 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 03:34:09,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1581 transitions. [2023-11-29 03:34:09,431 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1581 transitions. Word has length 338 [2023-11-29 03:34:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:09,432 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1581 transitions. [2023-11-29 03:34:09,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.8) internal successors, (338), 10 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1581 transitions. [2023-11-29 03:34:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-11-29 03:34:09,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:09,435 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:09,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 03:34:09,435 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:09,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:09,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1194902553, now seen corresponding path program 1 times [2023-11-29 03:34:09,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:09,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634786956] [2023-11-29 03:34:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:09,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:11,574 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:34:11,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:11,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634786956] [2023-11-29 03:34:11,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634786956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:11,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:11,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:34:11,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946827166] [2023-11-29 03:34:11,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:11,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:34:11,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:11,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:34:11,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:34:11,576 INFO L87 Difference]: Start difference. First operand 1006 states and 1581 transitions. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 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 03:34:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:11,948 INFO L93 Difference]: Finished difference Result 2866 states and 4531 transitions. [2023-11-29 03:34:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:34:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 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 339 [2023-11-29 03:34:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:11,951 INFO L225 Difference]: With dead ends: 2866 [2023-11-29 03:34:11,951 INFO L226 Difference]: Without dead ends: 2227 [2023-11-29 03:34:11,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:34:11,952 INFO L413 NwaCegarLoop]: 1307 mSDtfsCounter, 3326 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3326 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:11,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3326 Valid, 3321 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:11,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2023-11-29 03:34:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 1082. [2023-11-29 03:34:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 1081 states have (on average 1.5679925994449584) internal successors, (1695), 1081 states have internal predecessors, (1695), 0 states have call successors, (0), 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 03:34:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1695 transitions. [2023-11-29 03:34:11,977 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1695 transitions. Word has length 339 [2023-11-29 03:34:11,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:11,977 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1695 transitions. [2023-11-29 03:34:11,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 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 03:34:11,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1695 transitions. [2023-11-29 03:34:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-11-29 03:34:11,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:11,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:11,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 03:34:11,981 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:11,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:11,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1054353943, now seen corresponding path program 1 times [2023-11-29 03:34:11,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:11,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546555684] [2023-11-29 03:34:11,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:11,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:14,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:14,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546555684] [2023-11-29 03:34:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546555684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:14,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:14,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:34:14,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747855902] [2023-11-29 03:34:14,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:14,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:34:14,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:14,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:34:14,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:34:14,845 INFO L87 Difference]: Start difference. First operand 1082 states and 1695 transitions. Second operand has 10 states, 10 states have (on average 33.9) internal successors, (339), 9 states have internal predecessors, (339), 0 states have call successors, (0), 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 03:34:15,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:15,379 INFO L93 Difference]: Finished difference Result 4416 states and 6985 transitions. [2023-11-29 03:34:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:34:15,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 33.9) internal successors, (339), 9 states have internal predecessors, (339), 0 states have call successors, (0), 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 339 [2023-11-29 03:34:15,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:15,383 INFO L225 Difference]: With dead ends: 4416 [2023-11-29 03:34:15,383 INFO L226 Difference]: Without dead ends: 3462 [2023-11-29 03:34:15,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:34:15,385 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 6888 mSDsluCounter, 6747 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6888 SdHoareTripleChecker+Valid, 8189 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:15,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6888 Valid, 8189 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:15,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2023-11-29 03:34:15,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 1102. [2023-11-29 03:34:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 1.5676657584014533) internal successors, (1726), 1101 states have internal predecessors, (1726), 0 states have call successors, (0), 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 03:34:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1726 transitions. [2023-11-29 03:34:15,419 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1726 transitions. Word has length 339 [2023-11-29 03:34:15,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:15,419 INFO L495 AbstractCegarLoop]: Abstraction has 1102 states and 1726 transitions. [2023-11-29 03:34:15,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 33.9) internal successors, (339), 9 states have internal predecessors, (339), 0 states have call successors, (0), 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 03:34:15,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1726 transitions. [2023-11-29 03:34:15,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-29 03:34:15,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:15,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:15,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 03:34:15,422 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:15,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:15,423 INFO L85 PathProgramCache]: Analyzing trace with hash 160349191, now seen corresponding path program 1 times [2023-11-29 03:34:15,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:15,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260497987] [2023-11-29 03:34:15,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:15,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:15,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:15,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260497987] [2023-11-29 03:34:15,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260497987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:15,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:15,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:34:15,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778832130] [2023-11-29 03:34:15,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:15,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:34:15,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:15,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:34:15,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:34:15,917 INFO L87 Difference]: Start difference. First operand 1102 states and 1726 transitions. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:15,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:15,995 INFO L93 Difference]: Finished difference Result 3037 states and 4813 transitions. [2023-11-29 03:34:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:34:15,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 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 340 [2023-11-29 03:34:15,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:15,997 INFO L225 Difference]: With dead ends: 3037 [2023-11-29 03:34:15,997 INFO L226 Difference]: Without dead ends: 2079 [2023-11-29 03:34:15,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:34:15,999 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1326 mSDsluCounter, 2821 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:15,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 3643 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:34:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2023-11-29 03:34:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1117. [2023-11-29 03:34:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1116 states have (on average 1.5654121863799284) internal successors, (1747), 1116 states have internal predecessors, (1747), 0 states have call successors, (0), 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 03:34:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1747 transitions. [2023-11-29 03:34:16,024 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1747 transitions. Word has length 340 [2023-11-29 03:34:16,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:16,024 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1747 transitions. [2023-11-29 03:34:16,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:16,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1747 transitions. [2023-11-29 03:34:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-29 03:34:16,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:16,027 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:16,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 03:34:16,027 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:16,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash 362586081, now seen corresponding path program 1 times [2023-11-29 03:34:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016371732] [2023-11-29 03:34:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:18,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:18,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016371732] [2023-11-29 03:34:18,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016371732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:18,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:18,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:34:18,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693729057] [2023-11-29 03:34:18,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:18,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:34:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:18,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:34:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:34:18,745 INFO L87 Difference]: Start difference. First operand 1117 states and 1747 transitions. Second operand has 11 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:19,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:19,520 INFO L93 Difference]: Finished difference Result 4991 states and 7837 transitions. [2023-11-29 03:34:19,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 03:34:19,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 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 340 [2023-11-29 03:34:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:19,524 INFO L225 Difference]: With dead ends: 4991 [2023-11-29 03:34:19,524 INFO L226 Difference]: Without dead ends: 4263 [2023-11-29 03:34:19,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=233, Invalid=759, Unknown=0, NotChecked=0, Total=992 [2023-11-29 03:34:19,526 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 5363 mSDsluCounter, 11218 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5363 SdHoareTripleChecker+Valid, 12475 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:19,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5363 Valid, 12475 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:34:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2023-11-29 03:34:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 1411. [2023-11-29 03:34:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1410 states have (on average 1.548936170212766) internal successors, (2184), 1410 states have internal predecessors, (2184), 0 states have call successors, (0), 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 03:34:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 2184 transitions. [2023-11-29 03:34:19,567 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 2184 transitions. Word has length 340 [2023-11-29 03:34:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:19,568 INFO L495 AbstractCegarLoop]: Abstraction has 1411 states and 2184 transitions. [2023-11-29 03:34:19,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 30.90909090909091) internal successors, (340), 11 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 2184 transitions. [2023-11-29 03:34:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-29 03:34:19,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:19,571 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:19,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 03:34:19,571 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:19,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:19,572 INFO L85 PathProgramCache]: Analyzing trace with hash -569650565, now seen corresponding path program 1 times [2023-11-29 03:34:19,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:19,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217269838] [2023-11-29 03:34:19,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:19,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:34:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:22,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217269838] [2023-11-29 03:34:22,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217269838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:22,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:22,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:34:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250325248] [2023-11-29 03:34:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:22,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:34:22,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:34:22,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:34:22,539 INFO L87 Difference]: Start difference. First operand 1411 states and 2184 transitions. Second operand has 8 states, 8 states have (on average 42.5) internal successors, (340), 8 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:23,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:23,260 INFO L93 Difference]: Finished difference Result 3343 states and 5225 transitions. [2023-11-29 03:34:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:34:23,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 42.5) internal successors, (340), 8 states have internal predecessors, (340), 0 states have call successors, (0), 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 340 [2023-11-29 03:34:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:23,264 INFO L225 Difference]: With dead ends: 3343 [2023-11-29 03:34:23,264 INFO L226 Difference]: Without dead ends: 2329 [2023-11-29 03:34:23,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:34:23,266 INFO L413 NwaCegarLoop]: 1256 mSDtfsCounter, 4019 mSDsluCounter, 4532 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4019 SdHoareTripleChecker+Valid, 5788 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:23,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4019 Valid, 5788 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:34:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2023-11-29 03:34:23,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 1271. [2023-11-29 03:34:23,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 1.5511811023622046) internal successors, (1970), 1270 states have internal predecessors, (1970), 0 states have call successors, (0), 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 03:34:23,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1970 transitions. [2023-11-29 03:34:23,308 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1970 transitions. Word has length 340 [2023-11-29 03:34:23,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:23,308 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 1970 transitions. [2023-11-29 03:34:23,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 42.5) internal successors, (340), 8 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:23,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1970 transitions. [2023-11-29 03:34:23,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-29 03:34:23,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:23,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:23,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 03:34:23,311 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:23,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:23,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2015173963, now seen corresponding path program 1 times [2023-11-29 03:34:23,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:23,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108680450] [2023-11-29 03:34:23,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:23,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:25,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:25,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108680450] [2023-11-29 03:34:25,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108680450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:25,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:25,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:34:25,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926215594] [2023-11-29 03:34:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:25,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:34:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:34:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:34:25,934 INFO L87 Difference]: Start difference. First operand 1271 states and 1970 transitions. Second operand has 7 states, 7 states have (on average 48.57142857142857) internal successors, (340), 7 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:26,239 INFO L93 Difference]: Finished difference Result 4486 states and 7010 transitions. [2023-11-29 03:34:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:34:26,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.57142857142857) internal successors, (340), 7 states have internal predecessors, (340), 0 states have call successors, (0), 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 340 [2023-11-29 03:34:26,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:26,242 INFO L225 Difference]: With dead ends: 4486 [2023-11-29 03:34:26,242 INFO L226 Difference]: Without dead ends: 3603 [2023-11-29 03:34:26,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:34:26,244 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 3362 mSDsluCounter, 4912 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:26,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 6684 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2023-11-29 03:34:26,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 1929. [2023-11-29 03:34:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.5612033195020747) internal successors, (3010), 1928 states have internal predecessors, (3010), 0 states have call successors, (0), 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 03:34:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 3010 transitions. [2023-11-29 03:34:26,287 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 3010 transitions. Word has length 340 [2023-11-29 03:34:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:26,288 INFO L495 AbstractCegarLoop]: Abstraction has 1929 states and 3010 transitions. [2023-11-29 03:34:26,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.57142857142857) internal successors, (340), 7 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 3010 transitions. [2023-11-29 03:34:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2023-11-29 03:34:26,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:26,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:26,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 03:34:26,291 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:26,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:26,292 INFO L85 PathProgramCache]: Analyzing trace with hash 739840613, now seen corresponding path program 1 times [2023-11-29 03:34:26,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:26,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243780930] [2023-11-29 03:34:26,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:26,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:29,277 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 03:34:29,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:29,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243780930] [2023-11-29 03:34:29,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243780930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:29,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:29,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:34:29,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866939367] [2023-11-29 03:34:29,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:29,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:34:29,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:29,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:34:29,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:34:29,280 INFO L87 Difference]: Start difference. First operand 1929 states and 3010 transitions. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:29,374 INFO L93 Difference]: Finished difference Result 3386 states and 5284 transitions. [2023-11-29 03:34:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:34:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 341 [2023-11-29 03:34:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:29,377 INFO L225 Difference]: With dead ends: 3386 [2023-11-29 03:34:29,377 INFO L226 Difference]: Without dead ends: 1929 [2023-11-29 03:34:29,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:34:29,378 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 1310 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:29,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 725 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:34:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2023-11-29 03:34:29,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1929. [2023-11-29 03:34:29,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.5518672199170125) internal successors, (2992), 1928 states have internal predecessors, (2992), 0 states have call successors, (0), 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 03:34:29,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2992 transitions. [2023-11-29 03:34:29,416 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2992 transitions. Word has length 341 [2023-11-29 03:34:29,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:29,416 INFO L495 AbstractCegarLoop]: Abstraction has 1929 states and 2992 transitions. [2023-11-29 03:34:29,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 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 03:34:29,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2992 transitions. [2023-11-29 03:34:29,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-29 03:34:29,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:29,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:29,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 03:34:29,420 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:29,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:29,420 INFO L85 PathProgramCache]: Analyzing trace with hash -800333213, now seen corresponding path program 1 times [2023-11-29 03:34:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220291158] [2023-11-29 03:34:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:32,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:32,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220291158] [2023-11-29 03:34:32,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220291158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:32,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:32,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:34:32,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738847983] [2023-11-29 03:34:32,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:32,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:34:32,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:34:32,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:34:32,047 INFO L87 Difference]: Start difference. First operand 1929 states and 2992 transitions. Second operand has 11 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 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 03:34:32,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:32,844 INFO L93 Difference]: Finished difference Result 7085 states and 11031 transitions. [2023-11-29 03:34:32,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 03:34:32,844 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 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 342 [2023-11-29 03:34:32,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:32,848 INFO L225 Difference]: With dead ends: 7085 [2023-11-29 03:34:32,848 INFO L226 Difference]: Without dead ends: 5622 [2023-11-29 03:34:32,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=270, Invalid=786, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 03:34:32,850 INFO L413 NwaCegarLoop]: 1898 mSDtfsCounter, 4215 mSDsluCounter, 12311 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 14209 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:32,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 14209 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:34:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5622 states. [2023-11-29 03:34:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5622 to 1929. [2023-11-29 03:34:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.5508298755186722) internal successors, (2990), 1928 states have internal predecessors, (2990), 0 states have call successors, (0), 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 03:34:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2990 transitions. [2023-11-29 03:34:32,901 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2990 transitions. Word has length 342 [2023-11-29 03:34:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:32,902 INFO L495 AbstractCegarLoop]: Abstraction has 1929 states and 2990 transitions. [2023-11-29 03:34:32,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.09090909090909) internal successors, (342), 11 states have internal predecessors, (342), 0 states have call successors, (0), 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 03:34:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2990 transitions. [2023-11-29 03:34:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-11-29 03:34:32,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:32,905 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:32,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 03:34:32,905 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:32,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:32,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1328064269, now seen corresponding path program 1 times [2023-11-29 03:34:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:32,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993720822] [2023-11-29 03:34:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:35,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:35,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993720822] [2023-11-29 03:34:35,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993720822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:35,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:35,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:34:35,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167333390] [2023-11-29 03:34:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:35,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:34:35,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:35,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:34:35,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:34:35,052 INFO L87 Difference]: Start difference. First operand 1929 states and 2990 transitions. Second operand has 10 states, 10 states have (on average 34.3) internal successors, (343), 10 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:35,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:35,570 INFO L93 Difference]: Finished difference Result 5272 states and 8253 transitions. [2023-11-29 03:34:35,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:34:35,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.3) internal successors, (343), 10 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2023-11-29 03:34:35,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:35,573 INFO L225 Difference]: With dead ends: 5272 [2023-11-29 03:34:35,574 INFO L226 Difference]: Without dead ends: 3815 [2023-11-29 03:34:35,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:34:35,576 INFO L413 NwaCegarLoop]: 1261 mSDtfsCounter, 3377 mSDsluCounter, 9465 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 10726 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:35,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 10726 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:34:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2023-11-29 03:34:35,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 1842. [2023-11-29 03:34:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 1.5562194459532863) internal successors, (2865), 1841 states have internal predecessors, (2865), 0 states have call successors, (0), 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 03:34:35,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2865 transitions. [2023-11-29 03:34:35,621 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2865 transitions. Word has length 343 [2023-11-29 03:34:35,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:35,621 INFO L495 AbstractCegarLoop]: Abstraction has 1842 states and 2865 transitions. [2023-11-29 03:34:35,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.3) internal successors, (343), 10 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:35,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2865 transitions. [2023-11-29 03:34:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-11-29 03:34:35,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:35,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:35,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 03:34:35,626 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:35,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 996726181, now seen corresponding path program 1 times [2023-11-29 03:34:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:35,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308788656] [2023-11-29 03:34:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:35,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:39,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:39,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308788656] [2023-11-29 03:34:39,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308788656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:39,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:39,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:34:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246490743] [2023-11-29 03:34:39,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:39,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:34:39,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:39,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:34:39,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:34:39,242 INFO L87 Difference]: Start difference. First operand 1842 states and 2865 transitions. Second operand has 12 states, 12 states have (on average 28.583333333333332) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:39,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:39,675 INFO L93 Difference]: Finished difference Result 4823 states and 7511 transitions. [2023-11-29 03:34:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:34:39,676 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 28.583333333333332) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2023-11-29 03:34:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:39,679 INFO L225 Difference]: With dead ends: 4823 [2023-11-29 03:34:39,679 INFO L226 Difference]: Without dead ends: 3372 [2023-11-29 03:34:39,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:34:39,681 INFO L413 NwaCegarLoop]: 1200 mSDtfsCounter, 5490 mSDsluCounter, 5399 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5490 SdHoareTripleChecker+Valid, 6599 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:39,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5490 Valid, 6599 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2023-11-29 03:34:39,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 1926. [2023-11-29 03:34:39,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1925 states have (on average 1.5589610389610389) internal successors, (3001), 1925 states have internal predecessors, (3001), 0 states have call successors, (0), 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 03:34:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 3001 transitions. [2023-11-29 03:34:39,723 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 3001 transitions. Word has length 343 [2023-11-29 03:34:39,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:39,723 INFO L495 AbstractCegarLoop]: Abstraction has 1926 states and 3001 transitions. [2023-11-29 03:34:39,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 28.583333333333332) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:39,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 3001 transitions. [2023-11-29 03:34:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-11-29 03:34:39,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:39,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:39,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 03:34:39,726 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:39,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:39,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1367427749, now seen corresponding path program 1 times [2023-11-29 03:34:39,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:39,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682281918] [2023-11-29 03:34:39,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:42,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:42,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682281918] [2023-11-29 03:34:42,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682281918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:42,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:42,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:34:42,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207124426] [2023-11-29 03:34:42,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:42,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:34:42,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:42,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:34:42,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:34:42,116 INFO L87 Difference]: Start difference. First operand 1926 states and 3001 transitions. Second operand has 11 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:42,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:42,602 INFO L93 Difference]: Finished difference Result 8249 states and 12874 transitions. [2023-11-29 03:34:42,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 03:34:42,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2023-11-29 03:34:42,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:42,607 INFO L225 Difference]: With dead ends: 8249 [2023-11-29 03:34:42,607 INFO L226 Difference]: Without dead ends: 6706 [2023-11-29 03:34:42,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:34:42,610 INFO L413 NwaCegarLoop]: 1076 mSDtfsCounter, 4729 mSDsluCounter, 8913 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 9989 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:42,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 9989 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6706 states. [2023-11-29 03:34:42,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6706 to 2046. [2023-11-29 03:34:42,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 2045 states have (on average 1.5574572127139363) internal successors, (3185), 2045 states have internal predecessors, (3185), 0 states have call successors, (0), 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 03:34:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3185 transitions. [2023-11-29 03:34:42,664 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3185 transitions. Word has length 343 [2023-11-29 03:34:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:42,665 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3185 transitions. [2023-11-29 03:34:42,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:34:42,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3185 transitions. [2023-11-29 03:34:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-11-29 03:34:42,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:42,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:42,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-29 03:34:42,668 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:42,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:42,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2043457861, now seen corresponding path program 1 times [2023-11-29 03:34:42,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:42,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219969666] [2023-11-29 03:34:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:42,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:45,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:45,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219969666] [2023-11-29 03:34:45,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219969666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:45,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:45,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:34:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331423041] [2023-11-29 03:34:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:45,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:34:45,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:34:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:34:45,501 INFO L87 Difference]: Start difference. First operand 2046 states and 3185 transitions. Second operand has 9 states, 9 states have (on average 38.22222222222222) internal successors, (344), 9 states have internal predecessors, (344), 0 states have call successors, (0), 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 03:34:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:45,906 INFO L93 Difference]: Finished difference Result 7720 states and 12099 transitions. [2023-11-29 03:34:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:34:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.22222222222222) internal successors, (344), 9 states have internal predecessors, (344), 0 states have call successors, (0), 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 344 [2023-11-29 03:34:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:45,910 INFO L225 Difference]: With dead ends: 7720 [2023-11-29 03:34:45,910 INFO L226 Difference]: Without dead ends: 5838 [2023-11-29 03:34:45,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:34:45,912 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 3762 mSDsluCounter, 4148 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3762 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:45,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3762 Valid, 4996 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5838 states. [2023-11-29 03:34:45,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5838 to 2106. [2023-11-29 03:34:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 2105 states have (on average 1.5558194774346794) internal successors, (3275), 2105 states have internal predecessors, (3275), 0 states have call successors, (0), 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 03:34:45,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 3275 transitions. [2023-11-29 03:34:45,979 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 3275 transitions. Word has length 344 [2023-11-29 03:34:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:45,980 INFO L495 AbstractCegarLoop]: Abstraction has 2106 states and 3275 transitions. [2023-11-29 03:34:45,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.22222222222222) internal successors, (344), 9 states have internal predecessors, (344), 0 states have call successors, (0), 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 03:34:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 3275 transitions. [2023-11-29 03:34:45,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-11-29 03:34:45,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:45,983 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-11-29 03:34:45,983 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:45,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1805486573, now seen corresponding path program 1 times [2023-11-29 03:34:45,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:45,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713056208] [2023-11-29 03:34:45,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:45,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:50,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:50,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713056208] [2023-11-29 03:34:50,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713056208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:50,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:50,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:34:50,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242113582] [2023-11-29 03:34:50,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:50,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:34:50,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:50,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:34:50,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:34:50,442 INFO L87 Difference]: Start difference. First operand 2106 states and 3275 transitions. Second operand has 15 states, 15 states have (on average 23.0) internal successors, (345), 14 states have internal predecessors, (345), 0 states have call successors, (0), 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 03:34:51,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:51,825 INFO L93 Difference]: Finished difference Result 9499 states and 14727 transitions. [2023-11-29 03:34:51,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 03:34:51,826 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 23.0) internal successors, (345), 14 states have internal predecessors, (345), 0 states have call successors, (0), 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 345 [2023-11-29 03:34:51,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:51,830 INFO L225 Difference]: With dead ends: 9499 [2023-11-29 03:34:51,830 INFO L226 Difference]: Without dead ends: 7706 [2023-11-29 03:34:51,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 03:34:51,833 INFO L413 NwaCegarLoop]: 1402 mSDtfsCounter, 12320 mSDsluCounter, 11312 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12320 SdHoareTripleChecker+Valid, 12714 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:51,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12320 Valid, 12714 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:34:51,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7706 states. [2023-11-29 03:34:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7706 to 2338. [2023-11-29 03:34:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 2337 states have (on average 1.5605477107402652) internal successors, (3647), 2337 states have internal predecessors, (3647), 0 states have call successors, (0), 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 03:34:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3647 transitions. [2023-11-29 03:34:51,888 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3647 transitions. Word has length 345 [2023-11-29 03:34:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:51,888 INFO L495 AbstractCegarLoop]: Abstraction has 2338 states and 3647 transitions. [2023-11-29 03:34:51,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 23.0) internal successors, (345), 14 states have internal predecessors, (345), 0 states have call successors, (0), 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 03:34:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3647 transitions. [2023-11-29 03:34:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-11-29 03:34:51,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:51,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:51,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-29 03:34:51,892 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:51,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1257155421, now seen corresponding path program 1 times [2023-11-29 03:34:51,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:51,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355288723] [2023-11-29 03:34:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:51,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:55,703 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:55,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:55,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355288723] [2023-11-29 03:34:55,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355288723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:55,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:55,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:34:55,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082052207] [2023-11-29 03:34:55,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:55,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:34:55,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:55,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:34:55,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:34:55,706 INFO L87 Difference]: Start difference. First operand 2338 states and 3647 transitions. Second operand has 10 states, 10 states have (on average 34.6) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 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 03:34:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:56,223 INFO L93 Difference]: Finished difference Result 6343 states and 9917 transitions. [2023-11-29 03:34:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:34:56,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.6) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 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 346 [2023-11-29 03:34:56,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:56,227 INFO L225 Difference]: With dead ends: 6343 [2023-11-29 03:34:56,227 INFO L226 Difference]: Without dead ends: 4370 [2023-11-29 03:34:56,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:34:56,229 INFO L413 NwaCegarLoop]: 1310 mSDtfsCounter, 4522 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4522 SdHoareTripleChecker+Valid, 6610 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:56,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4522 Valid, 6610 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:34:56,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2023-11-29 03:34:56,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 2342. [2023-11-29 03:34:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2342 states, 2341 states have (on average 1.5595899188381033) internal successors, (3651), 2341 states have internal predecessors, (3651), 0 states have call successors, (0), 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 03:34:56,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3651 transitions. [2023-11-29 03:34:56,277 INFO L78 Accepts]: Start accepts. Automaton has 2342 states and 3651 transitions. Word has length 346 [2023-11-29 03:34:56,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:56,277 INFO L495 AbstractCegarLoop]: Abstraction has 2342 states and 3651 transitions. [2023-11-29 03:34:56,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.6) internal successors, (346), 9 states have internal predecessors, (346), 0 states have call successors, (0), 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 03:34:56,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2342 states and 3651 transitions. [2023-11-29 03:34:56,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-29 03:34:56,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:56,281 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:56,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-11-29 03:34:56,281 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:56,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:56,282 INFO L85 PathProgramCache]: Analyzing trace with hash 948940019, now seen corresponding path program 1 times [2023-11-29 03:34:56,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:56,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103085844] [2023-11-29 03:34:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:56,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:34:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:34:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:34:58,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:34:58,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103085844] [2023-11-29 03:34:58,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103085844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:34:58,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:34:58,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:34:58,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767594651] [2023-11-29 03:34:58,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:34:58,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:34:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:34:58,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:34:58,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:34:58,361 INFO L87 Difference]: Start difference. First operand 2342 states and 3651 transitions. Second operand has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:34:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:34:58,860 INFO L93 Difference]: Finished difference Result 12229 states and 19156 transitions. [2023-11-29 03:34:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:34:58,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 0 states have call successors, (0), 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 347 [2023-11-29 03:34:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:34:58,867 INFO L225 Difference]: With dead ends: 12229 [2023-11-29 03:34:58,867 INFO L226 Difference]: Without dead ends: 10286 [2023-11-29 03:34:58,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:34:58,871 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 3323 mSDsluCounter, 7708 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:34:58,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 9290 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:34:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10286 states. [2023-11-29 03:34:58,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10286 to 2418. [2023-11-29 03:34:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2417 states have (on average 1.5585436491518412) internal successors, (3767), 2417 states have internal predecessors, (3767), 0 states have call successors, (0), 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 03:34:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3767 transitions. [2023-11-29 03:34:58,935 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3767 transitions. Word has length 347 [2023-11-29 03:34:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:34:58,936 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3767 transitions. [2023-11-29 03:34:58,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.55555555555556) internal successors, (347), 9 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:34:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3767 transitions. [2023-11-29 03:34:58,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-29 03:34:58,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:34:58,939 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:58,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-11-29 03:34:58,939 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:34:58,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:34:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash -364889867, now seen corresponding path program 1 times [2023-11-29 03:34:58,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:34:58,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760863704] [2023-11-29 03:34:58,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:34:58,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:01,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:01,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760863704] [2023-11-29 03:35:01,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760863704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:01,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:01,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:35:01,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206657035] [2023-11-29 03:35:01,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:01,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:35:01,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:01,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:35:01,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:01,713 INFO L87 Difference]: Start difference. First operand 2418 states and 3767 transitions. Second operand has 7 states, 7 states have (on average 49.57142857142857) internal successors, (347), 7 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:35:01,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:01,947 INFO L93 Difference]: Finished difference Result 6534 states and 10235 transitions. [2023-11-29 03:35:01,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:01,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.57142857142857) internal successors, (347), 7 states have internal predecessors, (347), 0 states have call successors, (0), 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 347 [2023-11-29 03:35:01,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:01,951 INFO L225 Difference]: With dead ends: 6534 [2023-11-29 03:35:01,951 INFO L226 Difference]: Without dead ends: 4751 [2023-11-29 03:35:01,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:35:01,953 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 2544 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 4813 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:01,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2544 Valid, 4813 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4751 states. [2023-11-29 03:35:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4751 to 2808. [2023-11-29 03:35:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2808 states, 2807 states have (on average 1.5678660491628074) internal successors, (4401), 2807 states have internal predecessors, (4401), 0 states have call successors, (0), 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 03:35:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 4401 transitions. [2023-11-29 03:35:02,006 INFO L78 Accepts]: Start accepts. Automaton has 2808 states and 4401 transitions. Word has length 347 [2023-11-29 03:35:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:02,006 INFO L495 AbstractCegarLoop]: Abstraction has 2808 states and 4401 transitions. [2023-11-29 03:35:02,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.57142857142857) internal successors, (347), 7 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:35:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2808 states and 4401 transitions. [2023-11-29 03:35:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-29 03:35:02,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:02,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:02,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-11-29 03:35:02,010 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:02,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:02,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1443677863, now seen corresponding path program 1 times [2023-11-29 03:35:02,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:02,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785366832] [2023-11-29 03:35:02,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:02,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:05,384 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:05,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:05,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785366832] [2023-11-29 03:35:05,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785366832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:05,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:05,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:35:05,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53246452] [2023-11-29 03:35:05,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:05,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:35:05,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:35:05,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:35:05,386 INFO L87 Difference]: Start difference. First operand 2808 states and 4401 transitions. Second operand has 12 states, 12 states have (on average 28.916666666666668) internal successors, (347), 12 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:35:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:06,689 INFO L93 Difference]: Finished difference Result 18724 states and 29551 transitions. [2023-11-29 03:35:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 03:35:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 28.916666666666668) internal successors, (347), 12 states have internal predecessors, (347), 0 states have call successors, (0), 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 347 [2023-11-29 03:35:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:06,700 INFO L225 Difference]: With dead ends: 18724 [2023-11-29 03:35:06,701 INFO L226 Difference]: Without dead ends: 16115 [2023-11-29 03:35:06,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=323, Invalid=937, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 03:35:06,706 INFO L413 NwaCegarLoop]: 1391 mSDtfsCounter, 10336 mSDsluCounter, 8767 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10336 SdHoareTripleChecker+Valid, 10158 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:06,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10336 Valid, 10158 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:35:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16115 states. [2023-11-29 03:35:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16115 to 4161. [2023-11-29 03:35:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4161 states, 4160 states have (on average 1.5807692307692307) internal successors, (6576), 4160 states have internal predecessors, (6576), 0 states have call successors, (0), 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 03:35:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 6576 transitions. [2023-11-29 03:35:06,800 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 6576 transitions. Word has length 347 [2023-11-29 03:35:06,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:06,800 INFO L495 AbstractCegarLoop]: Abstraction has 4161 states and 6576 transitions. [2023-11-29 03:35:06,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 28.916666666666668) internal successors, (347), 12 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:35:06,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 6576 transitions. [2023-11-29 03:35:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-29 03:35:06,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:06,804 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:06,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-11-29 03:35:06,805 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:06,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash -935207297, now seen corresponding path program 1 times [2023-11-29 03:35:06,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:06,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551360182] [2023-11-29 03:35:06,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:07,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551360182] [2023-11-29 03:35:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551360182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:07,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984599676] [2023-11-29 03:35:07,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:07,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:35:07,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:07,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:35:07,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:35:07,297 INFO L87 Difference]: Start difference. First operand 4161 states and 6576 transitions. Second operand has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:35:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:07,411 INFO L93 Difference]: Finished difference Result 9822 states and 15514 transitions. [2023-11-29 03:35:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:07,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 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 347 [2023-11-29 03:35:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:07,416 INFO L225 Difference]: With dead ends: 9822 [2023-11-29 03:35:07,416 INFO L226 Difference]: Without dead ends: 6720 [2023-11-29 03:35:07,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:35:07,419 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 1318 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 3917 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:07,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 3917 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:07,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6720 states. [2023-11-29 03:35:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6720 to 4201. [2023-11-29 03:35:07,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4201 states, 4200 states have (on average 1.579047619047619) internal successors, (6632), 4200 states have internal predecessors, (6632), 0 states have call successors, (0), 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 03:35:07,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 6632 transitions. [2023-11-29 03:35:07,483 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 6632 transitions. Word has length 347 [2023-11-29 03:35:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:07,483 INFO L495 AbstractCegarLoop]: Abstraction has 4201 states and 6632 transitions. [2023-11-29 03:35:07,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 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 03:35:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 6632 transitions. [2023-11-29 03:35:07,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-29 03:35:07,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:07,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:07,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-11-29 03:35:07,488 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:07,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:07,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1849176117, now seen corresponding path program 1 times [2023-11-29 03:35:07,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:07,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35203138] [2023-11-29 03:35:07,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:07,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:10,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:10,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35203138] [2023-11-29 03:35:10,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35203138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:10,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:10,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:35:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134771357] [2023-11-29 03:35:10,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:10,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:35:10,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:10,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:35:10,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:10,171 INFO L87 Difference]: Start difference. First operand 4201 states and 6632 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:10,327 INFO L93 Difference]: Finished difference Result 12454 states and 19579 transitions. [2023-11-29 03:35:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:10,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2023-11-29 03:35:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:10,334 INFO L225 Difference]: With dead ends: 12454 [2023-11-29 03:35:10,334 INFO L226 Difference]: Without dead ends: 9478 [2023-11-29 03:35:10,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:10,338 INFO L413 NwaCegarLoop]: 1338 mSDtfsCounter, 2635 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:10,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 2706 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:10,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2023-11-29 03:35:10,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 5691. [2023-11-29 03:35:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5691 states, 5690 states have (on average 1.5699472759226714) internal successors, (8933), 5690 states have internal predecessors, (8933), 0 states have call successors, (0), 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 03:35:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5691 states to 5691 states and 8933 transitions. [2023-11-29 03:35:10,424 INFO L78 Accepts]: Start accepts. Automaton has 5691 states and 8933 transitions. Word has length 348 [2023-11-29 03:35:10,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:10,424 INFO L495 AbstractCegarLoop]: Abstraction has 5691 states and 8933 transitions. [2023-11-29 03:35:10,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:10,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5691 states and 8933 transitions. [2023-11-29 03:35:10,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-29 03:35:10,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:10,429 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:10,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-11-29 03:35:10,430 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:10,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1801558887, now seen corresponding path program 1 times [2023-11-29 03:35:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:10,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252414851] [2023-11-29 03:35:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:10,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:13,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:13,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252414851] [2023-11-29 03:35:13,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252414851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:13,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:13,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:35:13,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034545969] [2023-11-29 03:35:13,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:13,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:35:13,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:35:13,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:35:13,673 INFO L87 Difference]: Start difference. First operand 5691 states and 8933 transitions. Second operand has 9 states, 9 states have (on average 38.666666666666664) internal successors, (348), 9 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:14,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:14,134 INFO L93 Difference]: Finished difference Result 22914 states and 36184 transitions. [2023-11-29 03:35:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:35:14,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.666666666666664) internal successors, (348), 9 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2023-11-29 03:35:14,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:14,147 INFO L225 Difference]: With dead ends: 22914 [2023-11-29 03:35:14,147 INFO L226 Difference]: Without dead ends: 18984 [2023-11-29 03:35:14,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:35:14,153 INFO L413 NwaCegarLoop]: 1377 mSDtfsCounter, 5029 mSDsluCounter, 6203 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5029 SdHoareTripleChecker+Valid, 7580 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:14,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5029 Valid, 7580 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:35:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18984 states. [2023-11-29 03:35:14,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18984 to 8970. [2023-11-29 03:35:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8970 states, 8969 states have (on average 1.5842345857955178) internal successors, (14209), 8969 states have internal predecessors, (14209), 0 states have call successors, (0), 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 03:35:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8970 states to 8970 states and 14209 transitions. [2023-11-29 03:35:14,277 INFO L78 Accepts]: Start accepts. Automaton has 8970 states and 14209 transitions. Word has length 348 [2023-11-29 03:35:14,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:14,278 INFO L495 AbstractCegarLoop]: Abstraction has 8970 states and 14209 transitions. [2023-11-29 03:35:14,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.666666666666664) internal successors, (348), 9 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:14,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8970 states and 14209 transitions. [2023-11-29 03:35:14,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-29 03:35:14,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:14,300 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:14,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-11-29 03:35:14,300 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:14,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:14,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1648902967, now seen corresponding path program 1 times [2023-11-29 03:35:14,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:14,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794716801] [2023-11-29 03:35:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:14,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:14,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:14,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794716801] [2023-11-29 03:35:14,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794716801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:14,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:14,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:14,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506011613] [2023-11-29 03:35:14,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:14,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:35:14,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:35:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:35:14,791 INFO L87 Difference]: Start difference. First operand 8970 states and 14209 transitions. Second operand has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:14,916 INFO L93 Difference]: Finished difference Result 21818 states and 34511 transitions. [2023-11-29 03:35:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:14,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 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 348 [2023-11-29 03:35:14,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:14,926 INFO L225 Difference]: With dead ends: 21818 [2023-11-29 03:35:14,926 INFO L226 Difference]: Without dead ends: 14620 [2023-11-29 03:35:14,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:35:14,933 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 1318 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:14,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 3907 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:14,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14620 states. [2023-11-29 03:35:15,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14620 to 9000. [2023-11-29 03:35:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 1.5836204022669185) internal successors, (14251), 8999 states have internal predecessors, (14251), 0 states have call successors, (0), 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 03:35:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 14251 transitions. [2023-11-29 03:35:15,042 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 14251 transitions. Word has length 348 [2023-11-29 03:35:15,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:15,043 INFO L495 AbstractCegarLoop]: Abstraction has 9000 states and 14251 transitions. [2023-11-29 03:35:15,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:15,043 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 14251 transitions. [2023-11-29 03:35:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-29 03:35:15,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:15,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:15,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-11-29 03:35:15,049 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:15,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:15,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1489060625, now seen corresponding path program 1 times [2023-11-29 03:35:15,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:15,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011815641] [2023-11-29 03:35:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:15,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:15,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:15,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011815641] [2023-11-29 03:35:15,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011815641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:15,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:15,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:15,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524258316] [2023-11-29 03:35:15,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:15,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:35:15,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:15,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:35:15,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:35:15,559 INFO L87 Difference]: Start difference. First operand 9000 states and 14251 transitions. Second operand has 6 states, 6 states have (on average 58.166666666666664) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:15,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:15,690 INFO L93 Difference]: Finished difference Result 23553 states and 37252 transitions. [2023-11-29 03:35:15,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:15,690 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.166666666666664) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2023-11-29 03:35:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:15,700 INFO L225 Difference]: With dead ends: 23553 [2023-11-29 03:35:15,700 INFO L226 Difference]: Without dead ends: 14653 [2023-11-29 03:35:15,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:35:15,708 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 1312 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:15,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 3504 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:15,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14653 states. [2023-11-29 03:35:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14653 to 9027. [2023-11-29 03:35:15,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9027 states, 9026 states have (on average 1.582982495014403) internal successors, (14288), 9026 states have internal predecessors, (14288), 0 states have call successors, (0), 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 03:35:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9027 states to 9027 states and 14288 transitions. [2023-11-29 03:35:15,834 INFO L78 Accepts]: Start accepts. Automaton has 9027 states and 14288 transitions. Word has length 349 [2023-11-29 03:35:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:15,834 INFO L495 AbstractCegarLoop]: Abstraction has 9027 states and 14288 transitions. [2023-11-29 03:35:15,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.166666666666664) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9027 states and 14288 transitions. [2023-11-29 03:35:15,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-29 03:35:15,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:15,843 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:15,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-11-29 03:35:15,844 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:15,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:15,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1624042727, now seen corresponding path program 1 times [2023-11-29 03:35:15,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:15,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77991491] [2023-11-29 03:35:15,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:15,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:20,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:20,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77991491] [2023-11-29 03:35:20,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77991491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:20,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:20,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:35:20,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563282722] [2023-11-29 03:35:20,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:20,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:35:20,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:35:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:35:20,772 INFO L87 Difference]: Start difference. First operand 9027 states and 14288 transitions. Second operand has 15 states, 15 states have (on average 23.266666666666666) internal successors, (349), 14 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:21,948 INFO L93 Difference]: Finished difference Result 26102 states and 41341 transitions. [2023-11-29 03:35:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:35:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 23.266666666666666) internal successors, (349), 14 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2023-11-29 03:35:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:21,962 INFO L225 Difference]: With dead ends: 26102 [2023-11-29 03:35:21,962 INFO L226 Difference]: Without dead ends: 18722 [2023-11-29 03:35:21,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:35:21,968 INFO L413 NwaCegarLoop]: 1274 mSDtfsCounter, 8986 mSDsluCounter, 8773 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8986 SdHoareTripleChecker+Valid, 10047 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:21,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8986 Valid, 10047 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:35:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18722 states. [2023-11-29 03:35:22,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18722 to 9969. [2023-11-29 03:35:22,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9969 states, 9968 states have (on average 1.58196227929374) internal successors, (15769), 9968 states have internal predecessors, (15769), 0 states have call successors, (0), 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 03:35:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9969 states to 9969 states and 15769 transitions. [2023-11-29 03:35:22,099 INFO L78 Accepts]: Start accepts. Automaton has 9969 states and 15769 transitions. Word has length 349 [2023-11-29 03:35:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:22,099 INFO L495 AbstractCegarLoop]: Abstraction has 9969 states and 15769 transitions. [2023-11-29 03:35:22,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 23.266666666666666) internal successors, (349), 14 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:22,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9969 states and 15769 transitions. [2023-11-29 03:35:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-29 03:35:22,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:22,106 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-11-29 03:35:22,106 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:22,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash -718928937, now seen corresponding path program 1 times [2023-11-29 03:35:22,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:22,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345431764] [2023-11-29 03:35:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:24,686 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:24,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:24,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345431764] [2023-11-29 03:35:24,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345431764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:24,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:24,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:35:24,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941025684] [2023-11-29 03:35:24,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:24,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:35:24,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:24,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:35:24,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:35:24,688 INFO L87 Difference]: Start difference. First operand 9969 states and 15769 transitions. Second operand has 9 states, 9 states have (on average 38.77777777777778) internal successors, (349), 9 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:25,128 INFO L93 Difference]: Finished difference Result 35815 states and 56744 transitions. [2023-11-29 03:35:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:35:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 38.77777777777778) internal successors, (349), 9 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2023-11-29 03:35:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:25,147 INFO L225 Difference]: With dead ends: 35815 [2023-11-29 03:35:25,147 INFO L226 Difference]: Without dead ends: 27539 [2023-11-29 03:35:25,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:35:25,155 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 4543 mSDsluCounter, 6282 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4543 SdHoareTripleChecker+Valid, 7800 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:25,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4543 Valid, 7800 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27539 states. [2023-11-29 03:35:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27539 to 10409. [2023-11-29 03:35:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10409 states, 10408 states have (on average 1.578881629515757) internal successors, (16433), 10408 states have internal predecessors, (16433), 0 states have call successors, (0), 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 03:35:25,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10409 states to 10409 states and 16433 transitions. [2023-11-29 03:35:25,316 INFO L78 Accepts]: Start accepts. Automaton has 10409 states and 16433 transitions. Word has length 349 [2023-11-29 03:35:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:25,316 INFO L495 AbstractCegarLoop]: Abstraction has 10409 states and 16433 transitions. [2023-11-29 03:35:25,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 38.77777777777778) internal successors, (349), 9 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 10409 states and 16433 transitions. [2023-11-29 03:35:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-29 03:35:25,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:25,323 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:25,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-11-29 03:35:25,323 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:25,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash 373856345, now seen corresponding path program 1 times [2023-11-29 03:35:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:25,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927005311] [2023-11-29 03:35:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:29,354 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:29,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927005311] [2023-11-29 03:35:29,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927005311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:29,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:29,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:35:29,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57545787] [2023-11-29 03:35:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:29,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:35:29,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:35:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:35:29,356 INFO L87 Difference]: Start difference. First operand 10409 states and 16433 transitions. Second operand has 10 states, 10 states have (on average 34.9) internal successors, (349), 9 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:29,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:29,998 INFO L93 Difference]: Finished difference Result 23763 states and 37445 transitions. [2023-11-29 03:35:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:35:29,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 34.9) internal successors, (349), 9 states have internal predecessors, (349), 0 states have call successors, (0), 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 349 [2023-11-29 03:35:29,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:30,009 INFO L225 Difference]: With dead ends: 23763 [2023-11-29 03:35:30,009 INFO L226 Difference]: Without dead ends: 15243 [2023-11-29 03:35:30,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:35:30,014 INFO L413 NwaCegarLoop]: 1378 mSDtfsCounter, 5207 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:30,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 5618 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:35:30,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15243 states. [2023-11-29 03:35:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15243 to 10435. [2023-11-29 03:35:30,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10435 states, 10434 states have (on average 1.5785892275253977) internal successors, (16471), 10434 states have internal predecessors, (16471), 0 states have call successors, (0), 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 03:35:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10435 states to 10435 states and 16471 transitions. [2023-11-29 03:35:30,163 INFO L78 Accepts]: Start accepts. Automaton has 10435 states and 16471 transitions. Word has length 349 [2023-11-29 03:35:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:30,163 INFO L495 AbstractCegarLoop]: Abstraction has 10435 states and 16471 transitions. [2023-11-29 03:35:30,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 34.9) internal successors, (349), 9 states have internal predecessors, (349), 0 states have call successors, (0), 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 03:35:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 10435 states and 16471 transitions. [2023-11-29 03:35:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-11-29 03:35:30,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:30,168 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:30,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-11-29 03:35:30,169 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:30,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1227811889, now seen corresponding path program 1 times [2023-11-29 03:35:30,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:30,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031253855] [2023-11-29 03:35:30,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:30,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:34,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:34,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031253855] [2023-11-29 03:35:34,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031253855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:34,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:34,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:35:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105272209] [2023-11-29 03:35:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:34,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:35:34,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:34,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:35:34,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:35:34,117 INFO L87 Difference]: Start difference. First operand 10435 states and 16471 transitions. Second operand has 11 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 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 03:35:35,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:35,067 INFO L93 Difference]: Finished difference Result 25507 states and 40413 transitions. [2023-11-29 03:35:35,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:35:35,068 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 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 350 [2023-11-29 03:35:35,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:35,079 INFO L225 Difference]: With dead ends: 25507 [2023-11-29 03:35:35,079 INFO L226 Difference]: Without dead ends: 19111 [2023-11-29 03:35:35,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:35:35,085 INFO L413 NwaCegarLoop]: 1824 mSDtfsCounter, 2793 mSDsluCounter, 12864 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 14688 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:35,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 14688 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:35:35,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19111 states. [2023-11-29 03:35:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19111 to 10230. [2023-11-29 03:35:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10230 states, 10229 states have (on average 1.5810929709649038) internal successors, (16173), 10229 states have internal predecessors, (16173), 0 states have call successors, (0), 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 03:35:35,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10230 states to 10230 states and 16173 transitions. [2023-11-29 03:35:35,219 INFO L78 Accepts]: Start accepts. Automaton has 10230 states and 16173 transitions. Word has length 350 [2023-11-29 03:35:35,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:35,219 INFO L495 AbstractCegarLoop]: Abstraction has 10230 states and 16173 transitions. [2023-11-29 03:35:35,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.818181818181817) internal successors, (350), 11 states have internal predecessors, (350), 0 states have call successors, (0), 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 03:35:35,219 INFO L276 IsEmpty]: Start isEmpty. Operand 10230 states and 16173 transitions. [2023-11-29 03:35:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-11-29 03:35:35,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:35,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:35,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-11-29 03:35:35,224 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:35,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1523912919, now seen corresponding path program 1 times [2023-11-29 03:35:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:35,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194003567] [2023-11-29 03:35:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:35,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:35,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194003567] [2023-11-29 03:35:35,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194003567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:35,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:35,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:35:35,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000050844] [2023-11-29 03:35:35,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:35,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:35:35,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:35,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:35:35,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:35,703 INFO L87 Difference]: Start difference. First operand 10230 states and 16173 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 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 03:35:35,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:35,839 INFO L93 Difference]: Finished difference Result 23539 states and 37261 transitions. [2023-11-29 03:35:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:35,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 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 350 [2023-11-29 03:35:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:35,851 INFO L225 Difference]: With dead ends: 23539 [2023-11-29 03:35:35,851 INFO L226 Difference]: Without dead ends: 17355 [2023-11-29 03:35:35,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:35,857 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 1403 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:35,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 3977 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17355 states. [2023-11-29 03:35:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17355 to 10855. [2023-11-29 03:35:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10855 states, 10854 states have (on average 1.58190528837295) internal successors, (17170), 10854 states have internal predecessors, (17170), 0 states have call successors, (0), 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 03:35:35,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10855 states to 10855 states and 17170 transitions. [2023-11-29 03:35:35,991 INFO L78 Accepts]: Start accepts. Automaton has 10855 states and 17170 transitions. Word has length 350 [2023-11-29 03:35:35,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:35,992 INFO L495 AbstractCegarLoop]: Abstraction has 10855 states and 17170 transitions. [2023-11-29 03:35:35,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 0 states have call successors, (0), 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 03:35:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand 10855 states and 17170 transitions. [2023-11-29 03:35:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-11-29 03:35:35,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:35,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:35,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-11-29 03:35:35,997 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:35,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1439313405, now seen corresponding path program 1 times [2023-11-29 03:35:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:35,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816265563] [2023-11-29 03:35:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:35,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:38,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:38,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816265563] [2023-11-29 03:35:38,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816265563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:38,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:38,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:38,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532054715] [2023-11-29 03:35:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:38,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:35:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:35:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:38,279 INFO L87 Difference]: Start difference. First operand 10855 states and 17170 transitions. Second operand has 7 states, 7 states have (on average 50.0) internal successors, (350), 6 states have internal predecessors, (350), 0 states have call successors, (0), 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 03:35:38,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:38,472 INFO L93 Difference]: Finished difference Result 23877 states and 37794 transitions. [2023-11-29 03:35:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:35:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.0) internal successors, (350), 6 states have internal predecessors, (350), 0 states have call successors, (0), 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 350 [2023-11-29 03:35:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:38,484 INFO L225 Difference]: With dead ends: 23877 [2023-11-29 03:35:38,484 INFO L226 Difference]: Without dead ends: 17371 [2023-11-29 03:35:38,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:35:38,489 INFO L413 NwaCegarLoop]: 1231 mSDtfsCounter, 1137 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:38,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 5575 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17371 states. [2023-11-29 03:35:38,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17371 to 10865. [2023-11-29 03:35:38,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10865 states, 10864 states have (on average 1.5815537555228276) internal successors, (17182), 10864 states have internal predecessors, (17182), 0 states have call successors, (0), 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 03:35:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10865 states to 10865 states and 17182 transitions. [2023-11-29 03:35:38,623 INFO L78 Accepts]: Start accepts. Automaton has 10865 states and 17182 transitions. Word has length 350 [2023-11-29 03:35:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:38,623 INFO L495 AbstractCegarLoop]: Abstraction has 10865 states and 17182 transitions. [2023-11-29 03:35:38,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.0) internal successors, (350), 6 states have internal predecessors, (350), 0 states have call successors, (0), 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 03:35:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 10865 states and 17182 transitions. [2023-11-29 03:35:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-11-29 03:35:38,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:38,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:38,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-11-29 03:35:38,654 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:38,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash 125013957, now seen corresponding path program 1 times [2023-11-29 03:35:38,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:38,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471003433] [2023-11-29 03:35:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:39,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:39,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471003433] [2023-11-29 03:35:39,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471003433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:39,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:39,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:39,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757594570] [2023-11-29 03:35:39,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:39,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:35:39,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:35:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:35:39,819 INFO L87 Difference]: Start difference. First operand 10865 states and 17182 transitions. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:40,036 INFO L93 Difference]: Finished difference Result 31288 states and 49534 transitions. [2023-11-29 03:35:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:35:40,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2023-11-29 03:35:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:40,052 INFO L225 Difference]: With dead ends: 31288 [2023-11-29 03:35:40,053 INFO L226 Difference]: Without dead ends: 24461 [2023-11-29 03:35:40,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:35:40,059 INFO L413 NwaCegarLoop]: 1095 mSDtfsCounter, 1907 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 5068 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:40,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 5068 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24461 states. [2023-11-29 03:35:40,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24461 to 12382. [2023-11-29 03:35:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12382 states, 12381 states have (on average 1.5858977465471287) internal successors, (19635), 12381 states have internal predecessors, (19635), 0 states have call successors, (0), 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 03:35:40,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12382 states to 12382 states and 19635 transitions. [2023-11-29 03:35:40,227 INFO L78 Accepts]: Start accepts. Automaton has 12382 states and 19635 transitions. Word has length 351 [2023-11-29 03:35:40,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:40,227 INFO L495 AbstractCegarLoop]: Abstraction has 12382 states and 19635 transitions. [2023-11-29 03:35:40,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 12382 states and 19635 transitions. [2023-11-29 03:35:40,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-11-29 03:35:40,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:40,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:40,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-11-29 03:35:40,232 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:40,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:40,233 INFO L85 PathProgramCache]: Analyzing trace with hash -133729589, now seen corresponding path program 1 times [2023-11-29 03:35:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:40,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982016691] [2023-11-29 03:35:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:40,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:40,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:40,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982016691] [2023-11-29 03:35:40,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982016691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:40,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:40,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:35:40,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090326596] [2023-11-29 03:35:40,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:40,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:35:40,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:35:40,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:40,824 INFO L87 Difference]: Start difference. First operand 12382 states and 19635 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:40,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:40,902 INFO L93 Difference]: Finished difference Result 20732 states and 32921 transitions. [2023-11-29 03:35:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:35:40,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2023-11-29 03:35:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:40,912 INFO L225 Difference]: With dead ends: 20732 [2023-11-29 03:35:40,912 INFO L226 Difference]: Without dead ends: 12388 [2023-11-29 03:35:40,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:40,917 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 1 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:40,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2003 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:40,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12388 states. [2023-11-29 03:35:41,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12388 to 12386. [2023-11-29 03:35:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12386 states, 12385 states have (on average 1.5857085183689947) internal successors, (19639), 12385 states have internal predecessors, (19639), 0 states have call successors, (0), 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 03:35:41,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12386 states to 12386 states and 19639 transitions. [2023-11-29 03:35:41,043 INFO L78 Accepts]: Start accepts. Automaton has 12386 states and 19639 transitions. Word has length 351 [2023-11-29 03:35:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:41,043 INFO L495 AbstractCegarLoop]: Abstraction has 12386 states and 19639 transitions. [2023-11-29 03:35:41,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:41,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12386 states and 19639 transitions. [2023-11-29 03:35:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-11-29 03:35:41,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:41,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:41,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-11-29 03:35:41,048 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:41,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -198091365, now seen corresponding path program 1 times [2023-11-29 03:35:41,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:41,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948563626] [2023-11-29 03:35:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:41,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:44,523 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:35:44,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:44,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948563626] [2023-11-29 03:35:44,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948563626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:44,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:44,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:35:44,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819028781] [2023-11-29 03:35:44,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:44,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:35:44,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:44,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:35:44,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:35:44,526 INFO L87 Difference]: Start difference. First operand 12386 states and 19639 transitions. Second operand has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:45,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:45,634 INFO L93 Difference]: Finished difference Result 33566 states and 53301 transitions. [2023-11-29 03:35:45,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:35:45,635 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2023-11-29 03:35:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:45,653 INFO L225 Difference]: With dead ends: 33566 [2023-11-29 03:35:45,653 INFO L226 Difference]: Without dead ends: 25218 [2023-11-29 03:35:45,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:35:45,660 INFO L413 NwaCegarLoop]: 1255 mSDtfsCounter, 6225 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6225 SdHoareTripleChecker+Valid, 4099 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:45,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6225 Valid, 4099 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:35:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25218 states. [2023-11-29 03:35:45,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25218 to 12704. [2023-11-29 03:35:45,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12704 states, 12703 states have (on average 1.5809651263481068) internal successors, (20083), 12703 states have internal predecessors, (20083), 0 states have call successors, (0), 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 03:35:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12704 states to 12704 states and 20083 transitions. [2023-11-29 03:35:45,829 INFO L78 Accepts]: Start accepts. Automaton has 12704 states and 20083 transitions. Word has length 351 [2023-11-29 03:35:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:45,829 INFO L495 AbstractCegarLoop]: Abstraction has 12704 states and 20083 transitions. [2023-11-29 03:35:45,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 12704 states and 20083 transitions. [2023-11-29 03:35:45,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-11-29 03:35:45,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:45,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:45,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-11-29 03:35:45,836 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:45,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash -989779401, now seen corresponding path program 1 times [2023-11-29 03:35:45,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:45,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667011547] [2023-11-29 03:35:45,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:45,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:35:48,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:48,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667011547] [2023-11-29 03:35:48,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667011547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:48,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:48,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:35:48,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996851201] [2023-11-29 03:35:48,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:48,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:35:48,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:48,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:35:48,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:35:48,883 INFO L87 Difference]: Start difference. First operand 12704 states and 20083 transitions. Second operand has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:50,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:50,093 INFO L93 Difference]: Finished difference Result 38848 states and 61471 transitions. [2023-11-29 03:35:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:35:50,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 351 [2023-11-29 03:35:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:50,114 INFO L225 Difference]: With dead ends: 38848 [2023-11-29 03:35:50,115 INFO L226 Difference]: Without dead ends: 30182 [2023-11-29 03:35:50,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=569, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:35:50,123 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 6714 mSDsluCounter, 6149 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6714 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:50,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6714 Valid, 7438 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:35:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30182 states. [2023-11-29 03:35:50,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30182 to 13166. [2023-11-29 03:35:50,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 13165 states have (on average 1.5742499050512724) internal successors, (20725), 13165 states have internal predecessors, (20725), 0 states have call successors, (0), 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 03:35:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 20725 transitions. [2023-11-29 03:35:50,310 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 20725 transitions. Word has length 351 [2023-11-29 03:35:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:50,311 INFO L495 AbstractCegarLoop]: Abstraction has 13166 states and 20725 transitions. [2023-11-29 03:35:50,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.90909090909091) internal successors, (351), 11 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:35:50,311 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 20725 transitions. [2023-11-29 03:35:50,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-11-29 03:35:50,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:50,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:50,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-11-29 03:35:50,319 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:50,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:50,319 INFO L85 PathProgramCache]: Analyzing trace with hash -614816737, now seen corresponding path program 1 times [2023-11-29 03:35:50,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:50,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744860088] [2023-11-29 03:35:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:50,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:35:53,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:53,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744860088] [2023-11-29 03:35:53,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744860088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:53,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:53,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:35:53,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261728086] [2023-11-29 03:35:53,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:53,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:35:53,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:53,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:35:53,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:53,155 INFO L87 Difference]: Start difference. First operand 13166 states and 20725 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:53,340 INFO L93 Difference]: Finished difference Result 31438 states and 49477 transitions. [2023-11-29 03:35:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:35:53,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 351 [2023-11-29 03:35:53,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:53,355 INFO L225 Difference]: With dead ends: 31438 [2023-11-29 03:35:53,355 INFO L226 Difference]: Without dead ends: 22310 [2023-11-29 03:35:53,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:53,362 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 1885 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1885 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:53,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1885 Valid, 2087 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:53,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22310 states. [2023-11-29 03:35:53,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22310 to 13182. [2023-11-29 03:35:53,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13182 states, 13181 states have (on average 1.5735528412108337) internal successors, (20741), 13181 states have internal predecessors, (20741), 0 states have call successors, (0), 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 03:35:53,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13182 states to 13182 states and 20741 transitions. [2023-11-29 03:35:53,558 INFO L78 Accepts]: Start accepts. Automaton has 13182 states and 20741 transitions. Word has length 351 [2023-11-29 03:35:53,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:53,558 INFO L495 AbstractCegarLoop]: Abstraction has 13182 states and 20741 transitions. [2023-11-29 03:35:53,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 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 03:35:53,558 INFO L276 IsEmpty]: Start isEmpty. Operand 13182 states and 20741 transitions. [2023-11-29 03:35:53,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 03:35:53,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:53,564 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:53,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-11-29 03:35:53,564 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:53,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:53,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1715903073, now seen corresponding path program 1 times [2023-11-29 03:35:53,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:53,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301055300] [2023-11-29 03:35:53,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:53,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:56,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:56,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301055300] [2023-11-29 03:35:56,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301055300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:56,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:56,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:35:56,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463561808] [2023-11-29 03:35:56,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:56,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:35:56,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:56,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:35:56,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:35:56,393 INFO L87 Difference]: Start difference. First operand 13182 states and 20741 transitions. Second operand has 10 states, 10 states have (on average 35.2) internal successors, (352), 10 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:57,227 INFO L93 Difference]: Finished difference Result 44612 states and 70287 transitions. [2023-11-29 03:35:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:35:57,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.2) internal successors, (352), 10 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2023-11-29 03:35:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:57,251 INFO L225 Difference]: With dead ends: 44612 [2023-11-29 03:35:57,251 INFO L226 Difference]: Without dead ends: 35468 [2023-11-29 03:35:57,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:35:57,260 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 4126 mSDsluCounter, 10238 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4126 SdHoareTripleChecker+Valid, 12109 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:57,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4126 Valid, 12109 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:35:57,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35468 states. [2023-11-29 03:35:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35468 to 13315. [2023-11-29 03:35:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 1.5715787892444044) internal successors, (20924), 13314 states have internal predecessors, (20924), 0 states have call successors, (0), 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 03:35:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 20924 transitions. [2023-11-29 03:35:57,501 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 20924 transitions. Word has length 352 [2023-11-29 03:35:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:57,501 INFO L495 AbstractCegarLoop]: Abstraction has 13315 states and 20924 transitions. [2023-11-29 03:35:57,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.2) internal successors, (352), 10 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 20924 transitions. [2023-11-29 03:35:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 03:35:57,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:57,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:57,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-11-29 03:35:57,528 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:57,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:57,529 INFO L85 PathProgramCache]: Analyzing trace with hash -192003123, now seen corresponding path program 1 times [2023-11-29 03:35:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:57,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498285836] [2023-11-29 03:35:57,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:57,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:58,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498285836] [2023-11-29 03:35:58,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498285836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:58,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:58,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:35:58,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8752240] [2023-11-29 03:35:58,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:58,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:35:58,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:58,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:35:58,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:58,008 INFO L87 Difference]: Start difference. First operand 13315 states and 20924 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:58,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:58,214 INFO L93 Difference]: Finished difference Result 31932 states and 50151 transitions. [2023-11-29 03:35:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:58,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2023-11-29 03:35:58,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:58,228 INFO L225 Difference]: With dead ends: 31932 [2023-11-29 03:35:58,228 INFO L226 Difference]: Without dead ends: 22655 [2023-11-29 03:35:58,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:58,236 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 1328 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 3835 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:58,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 3835 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:58,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22655 states. [2023-11-29 03:35:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22655 to 13354. [2023-11-29 03:35:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13354 states, 13353 states have (on average 1.5711076162660076) internal successors, (20979), 13353 states have internal predecessors, (20979), 0 states have call successors, (0), 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 03:35:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13354 states to 13354 states and 20979 transitions. [2023-11-29 03:35:58,434 INFO L78 Accepts]: Start accepts. Automaton has 13354 states and 20979 transitions. Word has length 352 [2023-11-29 03:35:58,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:58,434 INFO L495 AbstractCegarLoop]: Abstraction has 13354 states and 20979 transitions. [2023-11-29 03:35:58,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand 13354 states and 20979 transitions. [2023-11-29 03:35:58,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 03:35:58,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:58,440 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:58,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-11-29 03:35:58,440 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:58,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:58,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1258673965, now seen corresponding path program 1 times [2023-11-29 03:35:58,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:58,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251590012] [2023-11-29 03:35:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:58,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 03:36:01,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:01,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251590012] [2023-11-29 03:36:01,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251590012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:01,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:01,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:01,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696406453] [2023-11-29 03:36:01,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:01,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:01,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:01,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:01,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:01,418 INFO L87 Difference]: Start difference. First operand 13354 states and 20979 transitions. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:36:01,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:01,752 INFO L93 Difference]: Finished difference Result 30970 states and 48359 transitions. [2023-11-29 03:36:01,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:36:01,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 352 [2023-11-29 03:36:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:01,767 INFO L225 Difference]: With dead ends: 30970 [2023-11-29 03:36:01,767 INFO L226 Difference]: Without dead ends: 21657 [2023-11-29 03:36:01,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:36:01,774 INFO L413 NwaCegarLoop]: 1333 mSDtfsCounter, 2731 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:01,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 2801 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21657 states. [2023-11-29 03:36:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21657 to 14044. [2023-11-29 03:36:01,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14044 states, 14043 states have (on average 1.564480524104536) internal successors, (21970), 14043 states have internal predecessors, (21970), 0 states have call successors, (0), 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 03:36:01,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14044 states to 14044 states and 21970 transitions. [2023-11-29 03:36:01,967 INFO L78 Accepts]: Start accepts. Automaton has 14044 states and 21970 transitions. Word has length 352 [2023-11-29 03:36:01,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:01,968 INFO L495 AbstractCegarLoop]: Abstraction has 14044 states and 21970 transitions. [2023-11-29 03:36:01,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 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 03:36:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14044 states and 21970 transitions. [2023-11-29 03:36:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 03:36:01,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:01,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:01,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-11-29 03:36:01,974 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:01,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1000508527, now seen corresponding path program 1 times [2023-11-29 03:36:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:01,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444016752] [2023-11-29 03:36:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:01,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:05,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:05,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444016752] [2023-11-29 03:36:05,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444016752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:05,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:05,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 03:36:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023957820] [2023-11-29 03:36:05,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:05,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:36:05,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:05,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:36:05,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:36:05,219 INFO L87 Difference]: Start difference. First operand 14044 states and 21970 transitions. Second operand has 13 states, 13 states have (on average 27.076923076923077) internal successors, (352), 13 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:06,983 INFO L93 Difference]: Finished difference Result 112821 states and 176643 transitions. [2023-11-29 03:36:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 03:36:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 27.076923076923077) internal successors, (352), 13 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2023-11-29 03:36:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:07,057 INFO L225 Difference]: With dead ends: 112821 [2023-11-29 03:36:07,058 INFO L226 Difference]: Without dead ends: 98851 [2023-11-29 03:36:07,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=550, Invalid=2206, Unknown=0, NotChecked=0, Total=2756 [2023-11-29 03:36:07,077 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 9333 mSDsluCounter, 11773 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9333 SdHoareTripleChecker+Valid, 12695 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:07,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9333 Valid, 12695 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:36:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98851 states. [2023-11-29 03:36:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98851 to 18504. [2023-11-29 03:36:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18504 states, 18503 states have (on average 1.562665513700481) internal successors, (28914), 18503 states have internal predecessors, (28914), 0 states have call successors, (0), 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 03:36:07,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18504 states to 18504 states and 28914 transitions. [2023-11-29 03:36:07,535 INFO L78 Accepts]: Start accepts. Automaton has 18504 states and 28914 transitions. Word has length 352 [2023-11-29 03:36:07,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:07,535 INFO L495 AbstractCegarLoop]: Abstraction has 18504 states and 28914 transitions. [2023-11-29 03:36:07,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 27.076923076923077) internal successors, (352), 13 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 18504 states and 28914 transitions. [2023-11-29 03:36:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-11-29 03:36:07,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:07,542 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:07,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-11-29 03:36:07,542 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:07,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1213875091, now seen corresponding path program 1 times [2023-11-29 03:36:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942928510] [2023-11-29 03:36:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:07,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:10,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:10,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942928510] [2023-11-29 03:36:10,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942928510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:10,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:10,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:36:10,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353628841] [2023-11-29 03:36:10,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:10,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:36:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:36:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:36:10,140 INFO L87 Difference]: Start difference. First operand 18504 states and 28914 transitions. Second operand has 9 states, 9 states have (on average 39.111111111111114) internal successors, (352), 9 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:10,913 INFO L93 Difference]: Finished difference Result 77203 states and 120625 transitions. [2023-11-29 03:36:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:36:10,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.111111111111114) internal successors, (352), 9 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 352 [2023-11-29 03:36:10,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:10,956 INFO L225 Difference]: With dead ends: 77203 [2023-11-29 03:36:10,957 INFO L226 Difference]: Without dead ends: 61970 [2023-11-29 03:36:10,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:36:10,971 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 4091 mSDsluCounter, 7659 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 8871 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:10,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 8871 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61970 states. [2023-11-29 03:36:11,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61970 to 14787. [2023-11-29 03:36:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14787 states, 14786 states have (on average 1.5575544433923982) internal successors, (23030), 14786 states have internal predecessors, (23030), 0 states have call successors, (0), 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 03:36:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14787 states to 14787 states and 23030 transitions. [2023-11-29 03:36:11,299 INFO L78 Accepts]: Start accepts. Automaton has 14787 states and 23030 transitions. Word has length 352 [2023-11-29 03:36:11,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:11,300 INFO L495 AbstractCegarLoop]: Abstraction has 14787 states and 23030 transitions. [2023-11-29 03:36:11,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.111111111111114) internal successors, (352), 9 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:11,300 INFO L276 IsEmpty]: Start isEmpty. Operand 14787 states and 23030 transitions. [2023-11-29 03:36:11,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:11,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:11,306 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:11,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-11-29 03:36:11,306 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:11,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:11,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1181680131, now seen corresponding path program 1 times [2023-11-29 03:36:11,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:11,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205476425] [2023-11-29 03:36:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:11,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:11,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:11,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205476425] [2023-11-29 03:36:11,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205476425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:11,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:11,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:36:11,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352516574] [2023-11-29 03:36:11,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:11,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:36:11,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:11,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:36:11,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:36:11,785 INFO L87 Difference]: Start difference. First operand 14787 states and 23030 transitions. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:12,068 INFO L93 Difference]: Finished difference Result 40817 states and 63514 transitions. [2023-11-29 03:36:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:36:12,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:12,091 INFO L225 Difference]: With dead ends: 40817 [2023-11-29 03:36:12,091 INFO L226 Difference]: Without dead ends: 27904 [2023-11-29 03:36:12,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:12,100 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 658 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:12,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 2539 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:12,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27904 states. [2023-11-29 03:36:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27904 to 14995. [2023-11-29 03:36:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14995 states, 14994 states have (on average 1.5498199279711884) internal successors, (23238), 14994 states have internal predecessors, (23238), 0 states have call successors, (0), 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 03:36:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14995 states to 14995 states and 23238 transitions. [2023-11-29 03:36:12,415 INFO L78 Accepts]: Start accepts. Automaton has 14995 states and 23238 transitions. Word has length 353 [2023-11-29 03:36:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:12,415 INFO L495 AbstractCegarLoop]: Abstraction has 14995 states and 23238 transitions. [2023-11-29 03:36:12,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand 14995 states and 23238 transitions. [2023-11-29 03:36:12,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:12,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:12,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:12,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2023-11-29 03:36:12,425 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:12,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash 26768973, now seen corresponding path program 1 times [2023-11-29 03:36:12,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:12,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969335336] [2023-11-29 03:36:12,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:12,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:13,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:13,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969335336] [2023-11-29 03:36:13,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969335336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:13,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:13,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:13,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176281980] [2023-11-29 03:36:13,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:13,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:13,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:13,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:13,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:13,713 INFO L87 Difference]: Start difference. First operand 14995 states and 23238 transitions. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:13,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:13,988 INFO L93 Difference]: Finished difference Result 36177 states and 56016 transitions. [2023-11-29 03:36:13,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:36:13,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:13,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:14,006 INFO L225 Difference]: With dead ends: 36177 [2023-11-29 03:36:14,006 INFO L226 Difference]: Without dead ends: 25582 [2023-11-29 03:36:14,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:14,014 INFO L413 NwaCegarLoop]: 1212 mSDtfsCounter, 1305 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 4960 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:14,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 4960 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:14,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25582 states. [2023-11-29 03:36:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25582 to 15028. [2023-11-29 03:36:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15028 states, 15027 states have (on average 1.5494110600918347) internal successors, (23283), 15027 states have internal predecessors, (23283), 0 states have call successors, (0), 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 03:36:14,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15028 states to 15028 states and 23283 transitions. [2023-11-29 03:36:14,233 INFO L78 Accepts]: Start accepts. Automaton has 15028 states and 23283 transitions. Word has length 353 [2023-11-29 03:36:14,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:14,234 INFO L495 AbstractCegarLoop]: Abstraction has 15028 states and 23283 transitions. [2023-11-29 03:36:14,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:14,234 INFO L276 IsEmpty]: Start isEmpty. Operand 15028 states and 23283 transitions. [2023-11-29 03:36:14,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:14,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:14,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:14,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-11-29 03:36:14,240 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:14,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1960032701, now seen corresponding path program 1 times [2023-11-29 03:36:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:14,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826793470] [2023-11-29 03:36:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:14,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:36:16,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:16,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826793470] [2023-11-29 03:36:16,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826793470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:16,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:16,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:16,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188383277] [2023-11-29 03:36:16,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:16,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:36:16,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:16,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:36:16,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:16,443 INFO L87 Difference]: Start difference. First operand 15028 states and 23283 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:16,704 INFO L93 Difference]: Finished difference Result 28622 states and 44047 transitions. [2023-11-29 03:36:16,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:36:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:16,717 INFO L225 Difference]: With dead ends: 28622 [2023-11-29 03:36:16,717 INFO L226 Difference]: Without dead ends: 18009 [2023-11-29 03:36:16,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:16,723 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 2778 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:16,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2778 Valid, 2028 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:16,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18009 states. [2023-11-29 03:36:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18009 to 15028. [2023-11-29 03:36:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15028 states, 15027 states have (on average 1.548612497504492) internal successors, (23271), 15027 states have internal predecessors, (23271), 0 states have call successors, (0), 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 03:36:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15028 states to 15028 states and 23271 transitions. [2023-11-29 03:36:16,917 INFO L78 Accepts]: Start accepts. Automaton has 15028 states and 23271 transitions. Word has length 353 [2023-11-29 03:36:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:16,917 INFO L495 AbstractCegarLoop]: Abstraction has 15028 states and 23271 transitions. [2023-11-29 03:36:16,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15028 states and 23271 transitions. [2023-11-29 03:36:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:16,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:16,923 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:16,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-11-29 03:36:16,923 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:16,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash -271088959, now seen corresponding path program 1 times [2023-11-29 03:36:16,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:16,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814760673] [2023-11-29 03:36:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:16,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:36:19,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:19,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814760673] [2023-11-29 03:36:19,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814760673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:19,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:19,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:36:19,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662651659] [2023-11-29 03:36:19,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:19,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:36:19,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:19,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:36:19,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:19,659 INFO L87 Difference]: Start difference. First operand 15028 states and 23271 transitions. Second operand has 8 states, 8 states have (on average 44.125) internal successors, (353), 8 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:20,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:20,339 INFO L93 Difference]: Finished difference Result 31508 states and 48855 transitions. [2023-11-29 03:36:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:36:20,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.125) internal successors, (353), 8 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:20,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:20,352 INFO L225 Difference]: With dead ends: 31508 [2023-11-29 03:36:20,352 INFO L226 Difference]: Without dead ends: 20895 [2023-11-29 03:36:20,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:36:20,358 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 5695 mSDsluCounter, 3431 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5695 SdHoareTripleChecker+Valid, 4129 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:20,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5695 Valid, 4129 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:36:20,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20895 states. [2023-11-29 03:36:20,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20895 to 15028. [2023-11-29 03:36:20,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15028 states, 15027 states have (on average 1.5476142942703135) internal successors, (23256), 15027 states have internal predecessors, (23256), 0 states have call successors, (0), 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 03:36:20,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15028 states to 15028 states and 23256 transitions. [2023-11-29 03:36:20,565 INFO L78 Accepts]: Start accepts. Automaton has 15028 states and 23256 transitions. Word has length 353 [2023-11-29 03:36:20,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:20,565 INFO L495 AbstractCegarLoop]: Abstraction has 15028 states and 23256 transitions. [2023-11-29 03:36:20,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.125) internal successors, (353), 8 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 15028 states and 23256 transitions. [2023-11-29 03:36:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:20,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:20,571 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:20,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2023-11-29 03:36:20,571 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:20,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:20,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1322021785, now seen corresponding path program 1 times [2023-11-29 03:36:20,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:20,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691537417] [2023-11-29 03:36:20,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:20,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 03:36:23,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:23,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691537417] [2023-11-29 03:36:23,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691537417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:23,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:23,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:36:23,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300413868] [2023-11-29 03:36:23,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:23,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:36:23,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:23,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:36:23,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:36:23,287 INFO L87 Difference]: Start difference. First operand 15028 states and 23256 transitions. Second operand has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:23,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:23,667 INFO L93 Difference]: Finished difference Result 36042 states and 55822 transitions. [2023-11-29 03:36:23,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:36:23,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2023-11-29 03:36:23,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:23,686 INFO L225 Difference]: With dead ends: 36042 [2023-11-29 03:36:23,686 INFO L226 Difference]: Without dead ends: 25429 [2023-11-29 03:36:23,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:36:23,694 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 2652 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:23,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2652 Valid, 2751 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:23,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25429 states. [2023-11-29 03:36:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25429 to 14687. [2023-11-29 03:36:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14687 states, 14686 states have (on average 1.5510009532888465) internal successors, (22778), 14686 states have internal predecessors, (22778), 0 states have call successors, (0), 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 03:36:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14687 states to 14687 states and 22778 transitions. [2023-11-29 03:36:23,913 INFO L78 Accepts]: Start accepts. Automaton has 14687 states and 22778 transitions. Word has length 353 [2023-11-29 03:36:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:23,913 INFO L495 AbstractCegarLoop]: Abstraction has 14687 states and 22778 transitions. [2023-11-29 03:36:23,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.0) internal successors, (343), 7 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 14687 states and 22778 transitions. [2023-11-29 03:36:23,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:23,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:23,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:23,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2023-11-29 03:36:23,920 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:23,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1745470851, now seen corresponding path program 1 times [2023-11-29 03:36:23,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:23,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231601354] [2023-11-29 03:36:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:23,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:26,563 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:26,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:26,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231601354] [2023-11-29 03:36:26,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231601354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:26,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:26,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:36:26,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751367957] [2023-11-29 03:36:26,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:26,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:36:26,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:36:26,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:36:26,565 INFO L87 Difference]: Start difference. First operand 14687 states and 22778 transitions. Second operand has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:27,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:27,044 INFO L93 Difference]: Finished difference Result 62322 states and 97129 transitions. [2023-11-29 03:36:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:36:27,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:27,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:27,083 INFO L225 Difference]: With dead ends: 62322 [2023-11-29 03:36:27,083 INFO L226 Difference]: Without dead ends: 52050 [2023-11-29 03:36:27,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:36:27,096 INFO L413 NwaCegarLoop]: 1809 mSDtfsCounter, 2290 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2290 SdHoareTripleChecker+Valid, 8701 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:27,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2290 Valid, 8701 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:27,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52050 states. [2023-11-29 03:36:27,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52050 to 14775. [2023-11-29 03:36:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14775 states, 14774 states have (on average 1.5498172465141464) internal successors, (22897), 14774 states have internal predecessors, (22897), 0 states have call successors, (0), 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 03:36:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14775 states to 14775 states and 22897 transitions. [2023-11-29 03:36:27,402 INFO L78 Accepts]: Start accepts. Automaton has 14775 states and 22897 transitions. Word has length 353 [2023-11-29 03:36:27,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:27,403 INFO L495 AbstractCegarLoop]: Abstraction has 14775 states and 22897 transitions. [2023-11-29 03:36:27,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 7 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 14775 states and 22897 transitions. [2023-11-29 03:36:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:27,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:27,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:27,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-11-29 03:36:27,409 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:27,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:27,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1679262837, now seen corresponding path program 1 times [2023-11-29 03:36:27,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:27,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565828333] [2023-11-29 03:36:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:27,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:28,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:28,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565828333] [2023-11-29 03:36:28,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565828333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:28,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:28,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:28,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119373883] [2023-11-29 03:36:28,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:28,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:28,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:28,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:28,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:28,544 INFO L87 Difference]: Start difference. First operand 14775 states and 22897 transitions. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:28,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:28,805 INFO L93 Difference]: Finished difference Result 36524 states and 56588 transitions. [2023-11-29 03:36:28,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:36:28,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:28,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:28,824 INFO L225 Difference]: With dead ends: 36524 [2023-11-29 03:36:28,824 INFO L226 Difference]: Without dead ends: 26164 [2023-11-29 03:36:28,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:36:28,832 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 2256 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 4738 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:28,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 4738 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26164 states. [2023-11-29 03:36:29,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26164 to 15304. [2023-11-29 03:36:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15304 states, 15303 states have (on average 1.5502189113245768) internal successors, (23723), 15303 states have internal predecessors, (23723), 0 states have call successors, (0), 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 03:36:29,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15304 states to 15304 states and 23723 transitions. [2023-11-29 03:36:29,057 INFO L78 Accepts]: Start accepts. Automaton has 15304 states and 23723 transitions. Word has length 353 [2023-11-29 03:36:29,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:29,058 INFO L495 AbstractCegarLoop]: Abstraction has 15304 states and 23723 transitions. [2023-11-29 03:36:29,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 15304 states and 23723 transitions. [2023-11-29 03:36:29,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:29,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:29,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:29,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-11-29 03:36:29,064 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:29,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:29,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1329444977, now seen corresponding path program 1 times [2023-11-29 03:36:29,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:29,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369191212] [2023-11-29 03:36:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:29,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:31,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369191212] [2023-11-29 03:36:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369191212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:31,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:31,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:31,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717386545] [2023-11-29 03:36:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:31,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:36:31,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:31,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:36:31,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:36:31,427 INFO L87 Difference]: Start difference. First operand 15304 states and 23723 transitions. Second operand has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:31,714 INFO L93 Difference]: Finished difference Result 37064 states and 57425 transitions. [2023-11-29 03:36:31,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:36:31,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:31,735 INFO L225 Difference]: With dead ends: 37064 [2023-11-29 03:36:31,735 INFO L226 Difference]: Without dead ends: 26192 [2023-11-29 03:36:31,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:36:31,743 INFO L413 NwaCegarLoop]: 1247 mSDtfsCounter, 1111 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 5639 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:31,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 5639 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:31,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26192 states. [2023-11-29 03:36:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26192 to 15324. [2023-11-29 03:36:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15324 states, 15323 states have (on average 1.5497617959929517) internal successors, (23747), 15323 states have internal predecessors, (23747), 0 states have call successors, (0), 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 03:36:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15324 states to 15324 states and 23747 transitions. [2023-11-29 03:36:32,001 INFO L78 Accepts]: Start accepts. Automaton has 15324 states and 23747 transitions. Word has length 353 [2023-11-29 03:36:32,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:32,001 INFO L495 AbstractCegarLoop]: Abstraction has 15324 states and 23747 transitions. [2023-11-29 03:36:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 15324 states and 23747 transitions. [2023-11-29 03:36:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:32,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:32,009 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:32,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-11-29 03:36:32,010 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:32,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:32,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1198214681, now seen corresponding path program 1 times [2023-11-29 03:36:32,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:32,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331993335] [2023-11-29 03:36:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:32,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:34,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:34,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331993335] [2023-11-29 03:36:34,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331993335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:34,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:34,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:36:34,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420834762] [2023-11-29 03:36:34,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:34,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:36:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:34,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:36:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:34,655 INFO L87 Difference]: Start difference. First operand 15324 states and 23747 transitions. Second operand has 8 states, 8 states have (on average 44.125) internal successors, (353), 7 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:35,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:35,341 INFO L93 Difference]: Finished difference Result 36980 states and 57273 transitions. [2023-11-29 03:36:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:36:35,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.125) internal successors, (353), 7 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:35,360 INFO L225 Difference]: With dead ends: 36980 [2023-11-29 03:36:35,361 INFO L226 Difference]: Without dead ends: 26088 [2023-11-29 03:36:35,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:36:35,368 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 1781 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:35,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 5535 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:36:35,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26088 states. [2023-11-29 03:36:35,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26088 to 15362. [2023-11-29 03:36:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15362 states, 15361 states have (on average 1.5494433956122649) internal successors, (23801), 15361 states have internal predecessors, (23801), 0 states have call successors, (0), 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 03:36:35,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15362 states to 15362 states and 23801 transitions. [2023-11-29 03:36:35,619 INFO L78 Accepts]: Start accepts. Automaton has 15362 states and 23801 transitions. Word has length 353 [2023-11-29 03:36:35,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:35,620 INFO L495 AbstractCegarLoop]: Abstraction has 15362 states and 23801 transitions. [2023-11-29 03:36:35,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.125) internal successors, (353), 7 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:35,620 INFO L276 IsEmpty]: Start isEmpty. Operand 15362 states and 23801 transitions. [2023-11-29 03:36:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:35,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:35,626 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:35,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-11-29 03:36:35,626 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:35,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 657599253, now seen corresponding path program 1 times [2023-11-29 03:36:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:35,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55426429] [2023-11-29 03:36:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:35,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:36,182 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:36,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:36,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55426429] [2023-11-29 03:36:36,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55426429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:36,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:36,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:36:36,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624433318] [2023-11-29 03:36:36,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:36,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:36:36,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:36,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:36:36,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:36:36,184 INFO L87 Difference]: Start difference. First operand 15362 states and 23801 transitions. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:36,457 INFO L93 Difference]: Finished difference Result 38242 states and 59151 transitions. [2023-11-29 03:36:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:36:36,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:36,480 INFO L225 Difference]: With dead ends: 38242 [2023-11-29 03:36:36,480 INFO L226 Difference]: Without dead ends: 26842 [2023-11-29 03:36:36,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:36,488 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 658 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:36,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 2803 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26842 states. [2023-11-29 03:36:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26842 to 15458. [2023-11-29 03:36:36,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15458 states, 15457 states have (on average 1.5460309245002264) internal successors, (23897), 15457 states have internal predecessors, (23897), 0 states have call successors, (0), 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 03:36:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15458 states to 15458 states and 23897 transitions. [2023-11-29 03:36:36,743 INFO L78 Accepts]: Start accepts. Automaton has 15458 states and 23897 transitions. Word has length 353 [2023-11-29 03:36:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:36,743 INFO L495 AbstractCegarLoop]: Abstraction has 15458 states and 23897 transitions. [2023-11-29 03:36:36,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 15458 states and 23897 transitions. [2023-11-29 03:36:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:36,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:36,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:36,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-11-29 03:36:36,749 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:36,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:36,750 INFO L85 PathProgramCache]: Analyzing trace with hash -757791059, now seen corresponding path program 1 times [2023-11-29 03:36:36,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:36,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81525213] [2023-11-29 03:36:36,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:36,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:37,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:37,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81525213] [2023-11-29 03:36:37,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81525213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:37,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:37,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:37,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647760696] [2023-11-29 03:36:37,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:37,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:36:37,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:36:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:37,316 INFO L87 Difference]: Start difference. First operand 15458 states and 23897 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:37,474 INFO L93 Difference]: Finished difference Result 27170 states and 41960 transitions. [2023-11-29 03:36:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:36:37,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:37,485 INFO L225 Difference]: With dead ends: 27170 [2023-11-29 03:36:37,486 INFO L226 Difference]: Without dead ends: 15602 [2023-11-29 03:36:37,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:37,492 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 1 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:37,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2002 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15602 states. [2023-11-29 03:36:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15602 to 15554. [2023-11-29 03:36:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15554 states, 15553 states have (on average 1.5426605799524207) internal successors, (23993), 15553 states have internal predecessors, (23993), 0 states have call successors, (0), 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 03:36:37,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15554 states to 15554 states and 23993 transitions. [2023-11-29 03:36:37,683 INFO L78 Accepts]: Start accepts. Automaton has 15554 states and 23993 transitions. Word has length 353 [2023-11-29 03:36:37,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:37,684 INFO L495 AbstractCegarLoop]: Abstraction has 15554 states and 23993 transitions. [2023-11-29 03:36:37,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:37,684 INFO L276 IsEmpty]: Start isEmpty. Operand 15554 states and 23993 transitions. [2023-11-29 03:36:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:37,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:37,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:37,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-11-29 03:36:37,690 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:37,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash -451305621, now seen corresponding path program 1 times [2023-11-29 03:36:37,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:37,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637036736] [2023-11-29 03:36:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:37,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:38,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:38,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637036736] [2023-11-29 03:36:38,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637036736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:38,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574112770] [2023-11-29 03:36:38,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:38,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:38,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:38,343 INFO L87 Difference]: Start difference. First operand 15554 states and 23993 transitions. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:38,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:38,592 INFO L93 Difference]: Finished difference Result 43594 states and 67543 transitions. [2023-11-29 03:36:38,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:36:38,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:38,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:38,614 INFO L225 Difference]: With dead ends: 43594 [2023-11-29 03:36:38,614 INFO L226 Difference]: Without dead ends: 31802 [2023-11-29 03:36:38,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:38,623 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 1354 mSDsluCounter, 3431 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 4455 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:38,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 4455 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31802 states. [2023-11-29 03:36:38,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31802 to 18410. [2023-11-29 03:36:38,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18410 states, 18409 states have (on average 1.5506002498777771) internal successors, (28545), 18409 states have internal predecessors, (28545), 0 states have call successors, (0), 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 03:36:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18410 states to 18410 states and 28545 transitions. [2023-11-29 03:36:38,876 INFO L78 Accepts]: Start accepts. Automaton has 18410 states and 28545 transitions. Word has length 353 [2023-11-29 03:36:38,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:38,876 INFO L495 AbstractCegarLoop]: Abstraction has 18410 states and 28545 transitions. [2023-11-29 03:36:38,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:38,876 INFO L276 IsEmpty]: Start isEmpty. Operand 18410 states and 28545 transitions. [2023-11-29 03:36:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:38,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:38,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:38,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-11-29 03:36:38,882 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:38,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:38,883 INFO L85 PathProgramCache]: Analyzing trace with hash 621230429, now seen corresponding path program 1 times [2023-11-29 03:36:38,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:38,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672380199] [2023-11-29 03:36:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:39,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:39,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672380199] [2023-11-29 03:36:39,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672380199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371384376] [2023-11-29 03:36:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:39,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:36:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:36:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:39,359 INFO L87 Difference]: Start difference. First operand 18410 states and 28545 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:39,624 INFO L93 Difference]: Finished difference Result 55378 states and 85909 transitions. [2023-11-29 03:36:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:36:39,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:39,653 INFO L225 Difference]: With dead ends: 55378 [2023-11-29 03:36:39,653 INFO L226 Difference]: Without dead ends: 38982 [2023-11-29 03:36:39,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:36:39,665 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 1343 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:39,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 3258 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38982 states. [2023-11-29 03:36:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38982 to 21114. [2023-11-29 03:36:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21114 states, 21113 states have (on average 1.546109032349737) internal successors, (32643), 21113 states have internal predecessors, (32643), 0 states have call successors, (0), 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 03:36:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21114 states to 21114 states and 32643 transitions. [2023-11-29 03:36:40,009 INFO L78 Accepts]: Start accepts. Automaton has 21114 states and 32643 transitions. Word has length 353 [2023-11-29 03:36:40,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:40,010 INFO L495 AbstractCegarLoop]: Abstraction has 21114 states and 32643 transitions. [2023-11-29 03:36:40,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 21114 states and 32643 transitions. [2023-11-29 03:36:40,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-11-29 03:36:40,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:40,016 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:40,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-11-29 03:36:40,017 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:40,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:40,017 INFO L85 PathProgramCache]: Analyzing trace with hash 841642741, now seen corresponding path program 1 times [2023-11-29 03:36:40,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:40,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762757518] [2023-11-29 03:36:40,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:40,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:40,573 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:40,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:40,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762757518] [2023-11-29 03:36:40,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762757518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:40,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:40,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:40,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791772663] [2023-11-29 03:36:40,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:40,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:36:40,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:40,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:36:40,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:40,575 INFO L87 Difference]: Start difference. First operand 21114 states and 32643 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:40,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:40,793 INFO L93 Difference]: Finished difference Result 40182 states and 62106 transitions. [2023-11-29 03:36:40,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:36:40,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 353 [2023-11-29 03:36:40,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:40,807 INFO L225 Difference]: With dead ends: 40182 [2023-11-29 03:36:40,807 INFO L226 Difference]: Without dead ends: 21582 [2023-11-29 03:36:40,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:40,816 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 1 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:40,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2599 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21582 states. [2023-11-29 03:36:41,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21582 to 21426. [2023-11-29 03:36:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21426 states, 21425 states have (on average 1.5381563593932321) internal successors, (32955), 21425 states have internal predecessors, (32955), 0 states have call successors, (0), 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 03:36:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21426 states to 21426 states and 32955 transitions. [2023-11-29 03:36:41,047 INFO L78 Accepts]: Start accepts. Automaton has 21426 states and 32955 transitions. Word has length 353 [2023-11-29 03:36:41,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:41,048 INFO L495 AbstractCegarLoop]: Abstraction has 21426 states and 32955 transitions. [2023-11-29 03:36:41,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:36:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 21426 states and 32955 transitions. [2023-11-29 03:36:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:36:41,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:41,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:41,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-11-29 03:36:41,055 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:41,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash -931794389, now seen corresponding path program 1 times [2023-11-29 03:36:41,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:41,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258401381] [2023-11-29 03:36:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:41,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:41,613 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:41,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:41,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258401381] [2023-11-29 03:36:41,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258401381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:41,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:41,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:41,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920787095] [2023-11-29 03:36:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:41,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:36:41,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:36:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:36:41,615 INFO L87 Difference]: Start difference. First operand 21426 states and 32955 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:36:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:41,874 INFO L93 Difference]: Finished difference Result 59446 states and 91193 transitions. [2023-11-29 03:36:41,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:36:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:36:41,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:41,902 INFO L225 Difference]: With dead ends: 59446 [2023-11-29 03:36:41,902 INFO L226 Difference]: Without dead ends: 39794 [2023-11-29 03:36:41,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:41,915 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 654 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:41,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 3152 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:36:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39794 states. [2023-11-29 03:36:42,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39794 to 21738. [2023-11-29 03:36:42,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21738 states, 21737 states have (on average 1.5304319823342687) internal successors, (33267), 21737 states have internal predecessors, (33267), 0 states have call successors, (0), 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 03:36:42,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21738 states to 21738 states and 33267 transitions. [2023-11-29 03:36:42,216 INFO L78 Accepts]: Start accepts. Automaton has 21738 states and 33267 transitions. Word has length 354 [2023-11-29 03:36:42,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:42,216 INFO L495 AbstractCegarLoop]: Abstraction has 21738 states and 33267 transitions. [2023-11-29 03:36:42,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:36:42,217 INFO L276 IsEmpty]: Start isEmpty. Operand 21738 states and 33267 transitions. [2023-11-29 03:36:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:36:42,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:42,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:42,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2023-11-29 03:36:42,224 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:42,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:42,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1821041257, now seen corresponding path program 1 times [2023-11-29 03:36:42,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:42,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601042582] [2023-11-29 03:36:42,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:42,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:43,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601042582] [2023-11-29 03:36:43,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601042582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:43,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:43,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222879323] [2023-11-29 03:36:43,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:43,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:43,520 INFO L87 Difference]: Start difference. First operand 21738 states and 33267 transitions. Second operand has 6 states, 6 states have (on average 59.0) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:36:44,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:44,068 INFO L93 Difference]: Finished difference Result 51376 states and 78759 transitions. [2023-11-29 03:36:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:36:44,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:36:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:44,141 INFO L225 Difference]: With dead ends: 51376 [2023-11-29 03:36:44,141 INFO L226 Difference]: Without dead ends: 36420 [2023-11-29 03:36:44,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:44,146 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 1102 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:44,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 3834 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:36:44,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36420 states. [2023-11-29 03:36:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36420 to 21780. [2023-11-29 03:36:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21780 states, 21779 states have (on average 1.5295008953579137) internal successors, (33311), 21779 states have internal predecessors, (33311), 0 states have call successors, (0), 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 03:36:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21780 states to 21780 states and 33311 transitions. [2023-11-29 03:36:44,415 INFO L78 Accepts]: Start accepts. Automaton has 21780 states and 33311 transitions. Word has length 354 [2023-11-29 03:36:44,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:44,415 INFO L495 AbstractCegarLoop]: Abstraction has 21780 states and 33311 transitions. [2023-11-29 03:36:44,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:36:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21780 states and 33311 transitions. [2023-11-29 03:36:44,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:36:44,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:44,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:44,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-11-29 03:36:44,422 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:44,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1326224495, now seen corresponding path program 1 times [2023-11-29 03:36:44,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:44,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973903250] [2023-11-29 03:36:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:44,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 03:36:45,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973903250] [2023-11-29 03:36:45,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973903250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:45,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:45,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:45,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555258243] [2023-11-29 03:36:45,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:45,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:45,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:45,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:45,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:45,491 INFO L87 Difference]: Start difference. First operand 21780 states and 33311 transitions. Second operand has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 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 03:36:45,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:45,885 INFO L93 Difference]: Finished difference Result 64732 states and 99455 transitions. [2023-11-29 03:36:45,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:36:45,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 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 354 [2023-11-29 03:36:45,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:45,921 INFO L225 Difference]: With dead ends: 64732 [2023-11-29 03:36:45,921 INFO L226 Difference]: Without dead ends: 49734 [2023-11-29 03:36:45,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:36:45,934 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 4612 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4612 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:45,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4612 Valid, 2676 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:36:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49734 states. [2023-11-29 03:36:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49734 to 21809. [2023-11-29 03:36:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21809 states, 21808 states have (on average 1.5282923697725606) internal successors, (33329), 21808 states have internal predecessors, (33329), 0 states have call successors, (0), 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 03:36:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21809 states to 21809 states and 33329 transitions. [2023-11-29 03:36:46,364 INFO L78 Accepts]: Start accepts. Automaton has 21809 states and 33329 transitions. Word has length 354 [2023-11-29 03:36:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:46,364 INFO L495 AbstractCegarLoop]: Abstraction has 21809 states and 33329 transitions. [2023-11-29 03:36:46,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 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 03:36:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 21809 states and 33329 transitions. [2023-11-29 03:36:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:36:46,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:46,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:36:46,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-11-29 03:36:46,371 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:46,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:46,371 INFO L85 PathProgramCache]: Analyzing trace with hash -296865197, now seen corresponding path program 1 times [2023-11-29 03:36:46,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:36:46,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411437846] [2023-11-29 03:36:46,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:46,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:36:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:51,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:36:51,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411437846] [2023-11-29 03:36:51,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411437846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:51,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:51,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-29 03:36:51,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876748097] [2023-11-29 03:36:51,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:51,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:36:51,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:36:51,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:36:51,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:36:51,013 INFO L87 Difference]: Start difference. First operand 21809 states and 33329 transitions. Second operand has 17 states, 17 states have (on average 20.823529411764707) internal successors, (354), 17 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:14,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:14,900 INFO L93 Difference]: Finished difference Result 185202 states and 284880 transitions. [2023-11-29 03:37:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2023-11-29 03:37:14,901 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 20.823529411764707) internal successors, (354), 17 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:14,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:15,033 INFO L225 Difference]: With dead ends: 185202 [2023-11-29 03:37:15,033 INFO L226 Difference]: Without dead ends: 169865 [2023-11-29 03:37:15,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9587 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=3544, Invalid=20636, Unknown=0, NotChecked=0, Total=24180 [2023-11-29 03:37:15,060 INFO L413 NwaCegarLoop]: 1303 mSDtfsCounter, 19696 mSDsluCounter, 44986 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19696 SdHoareTripleChecker+Valid, 46289 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:15,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19696 Valid, 46289 Invalid, 2429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 03:37:15,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169865 states. [2023-11-29 03:37:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169865 to 22148. [2023-11-29 03:37:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22148 states, 22147 states have (on average 1.526166072154242) internal successors, (33800), 22147 states have internal predecessors, (33800), 0 states have call successors, (0), 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 03:37:16,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22148 states to 22148 states and 33800 transitions. [2023-11-29 03:37:16,033 INFO L78 Accepts]: Start accepts. Automaton has 22148 states and 33800 transitions. Word has length 354 [2023-11-29 03:37:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:16,033 INFO L495 AbstractCegarLoop]: Abstraction has 22148 states and 33800 transitions. [2023-11-29 03:37:16,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 20.823529411764707) internal successors, (354), 17 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 22148 states and 33800 transitions. [2023-11-29 03:37:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:16,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:16,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:16,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2023-11-29 03:37:16,041 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:16,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash 936555069, now seen corresponding path program 1 times [2023-11-29 03:37:16,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019346730] [2023-11-29 03:37:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:18,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:18,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019346730] [2023-11-29 03:37:18,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019346730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:18,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:18,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:37:18,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099228591] [2023-11-29 03:37:18,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:18,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:37:18,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:18,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:37:18,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:37:18,729 INFO L87 Difference]: Start difference. First operand 22148 states and 33800 transitions. Second operand has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:19,223 INFO L93 Difference]: Finished difference Result 68917 states and 105221 transitions. [2023-11-29 03:37:19,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:37:19,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:19,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:19,262 INFO L225 Difference]: With dead ends: 68917 [2023-11-29 03:37:19,262 INFO L226 Difference]: Without dead ends: 53497 [2023-11-29 03:37:19,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:37:19,276 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 2646 mSDsluCounter, 6065 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2646 SdHoareTripleChecker+Valid, 7392 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:19,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2646 Valid, 7392 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:37:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53497 states. [2023-11-29 03:37:19,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53497 to 22600. [2023-11-29 03:37:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22600 states, 22599 states have (on average 1.5210407540156645) internal successors, (34374), 22599 states have internal predecessors, (34374), 0 states have call successors, (0), 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 03:37:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22600 states to 22600 states and 34374 transitions. [2023-11-29 03:37:19,636 INFO L78 Accepts]: Start accepts. Automaton has 22600 states and 34374 transitions. Word has length 354 [2023-11-29 03:37:19,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:19,636 INFO L495 AbstractCegarLoop]: Abstraction has 22600 states and 34374 transitions. [2023-11-29 03:37:19,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 22600 states and 34374 transitions. [2023-11-29 03:37:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:19,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:19,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:19,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2023-11-29 03:37:19,644 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:19,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1800774615, now seen corresponding path program 1 times [2023-11-29 03:37:19,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:19,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164585430] [2023-11-29 03:37:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:19,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 03:37:21,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:21,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164585430] [2023-11-29 03:37:21,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164585430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:21,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:21,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:37:21,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184685727] [2023-11-29 03:37:21,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:21,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:37:21,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:21,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:37:21,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:37:21,745 INFO L87 Difference]: Start difference. First operand 22600 states and 34374 transitions. Second operand has 10 states, 10 states have (on average 35.3) internal successors, (353), 10 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:37:23,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:23,109 INFO L93 Difference]: Finished difference Result 60981 states and 93139 transitions. [2023-11-29 03:37:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 03:37:23,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.3) internal successors, (353), 10 states have internal predecessors, (353), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:23,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:23,139 INFO L225 Difference]: With dead ends: 60981 [2023-11-29 03:37:23,139 INFO L226 Difference]: Without dead ends: 45163 [2023-11-29 03:37:23,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 03:37:23,152 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 8351 mSDsluCounter, 6781 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8351 SdHoareTripleChecker+Valid, 7492 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:23,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8351 Valid, 7492 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:37:23,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45163 states. [2023-11-29 03:37:23,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45163 to 22634. [2023-11-29 03:37:23,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22634 states, 22633 states have (on average 1.520302213581938) internal successors, (34409), 22633 states have internal predecessors, (34409), 0 states have call successors, (0), 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 03:37:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22634 states to 22634 states and 34409 transitions. [2023-11-29 03:37:23,508 INFO L78 Accepts]: Start accepts. Automaton has 22634 states and 34409 transitions. Word has length 354 [2023-11-29 03:37:23,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:23,508 INFO L495 AbstractCegarLoop]: Abstraction has 22634 states and 34409 transitions. [2023-11-29 03:37:23,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.3) internal successors, (353), 10 states have internal predecessors, (353), 0 states have call successors, (0), 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 03:37:23,509 INFO L276 IsEmpty]: Start isEmpty. Operand 22634 states and 34409 transitions. [2023-11-29 03:37:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:23,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:23,516 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:23,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2023-11-29 03:37:23,517 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:23,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1155906259, now seen corresponding path program 1 times [2023-11-29 03:37:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:23,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180042595] [2023-11-29 03:37:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:24,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:24,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180042595] [2023-11-29 03:37:24,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180042595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:24,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:24,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:37:24,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655398686] [2023-11-29 03:37:24,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:24,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:37:24,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:24,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:37:24,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:37:24,761 INFO L87 Difference]: Start difference. First operand 22634 states and 34409 transitions. Second operand has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:25,088 INFO L93 Difference]: Finished difference Result 55574 states and 84525 transitions. [2023-11-29 03:37:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:37:25,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:25,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:25,115 INFO L225 Difference]: With dead ends: 55574 [2023-11-29 03:37:25,115 INFO L226 Difference]: Without dead ends: 39722 [2023-11-29 03:37:25,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:37:25,127 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 2447 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 4826 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:25,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2447 Valid, 4826 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:37:25,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39722 states. [2023-11-29 03:37:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39722 to 23264. [2023-11-29 03:37:25,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23264 states, 23263 states have (on average 1.5207840777199846) internal successors, (35378), 23263 states have internal predecessors, (35378), 0 states have call successors, (0), 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 03:37:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23264 states to 23264 states and 35378 transitions. [2023-11-29 03:37:25,443 INFO L78 Accepts]: Start accepts. Automaton has 23264 states and 35378 transitions. Word has length 354 [2023-11-29 03:37:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:25,443 INFO L495 AbstractCegarLoop]: Abstraction has 23264 states and 35378 transitions. [2023-11-29 03:37:25,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 23264 states and 35378 transitions. [2023-11-29 03:37:25,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:25,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:25,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:25,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2023-11-29 03:37:25,451 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:25,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:25,451 INFO L85 PathProgramCache]: Analyzing trace with hash 554327461, now seen corresponding path program 1 times [2023-11-29 03:37:25,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:25,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508790189] [2023-11-29 03:37:25,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:25,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:28,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:28,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508790189] [2023-11-29 03:37:28,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508790189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:28,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:28,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-29 03:37:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507529848] [2023-11-29 03:37:28,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:28,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:37:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:28,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:37:28,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:37:28,144 INFO L87 Difference]: Start difference. First operand 23264 states and 35378 transitions. Second operand has 16 states, 16 states have (on average 22.125) internal successors, (354), 15 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:30,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:30,312 INFO L93 Difference]: Finished difference Result 115873 states and 176788 transitions. [2023-11-29 03:37:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-29 03:37:30,313 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.125) internal successors, (354), 15 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:30,391 INFO L225 Difference]: With dead ends: 115873 [2023-11-29 03:37:30,391 INFO L226 Difference]: Without dead ends: 99087 [2023-11-29 03:37:30,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1015 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=794, Invalid=2746, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 03:37:30,415 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 11595 mSDsluCounter, 16653 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11595 SdHoareTripleChecker+Valid, 18068 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:30,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11595 Valid, 18068 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:37:30,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99087 states. [2023-11-29 03:37:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99087 to 24941. [2023-11-29 03:37:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24941 states, 24940 states have (on average 1.5230954290296712) internal successors, (37986), 24940 states have internal predecessors, (37986), 0 states have call successors, (0), 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 03:37:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24941 states to 24941 states and 37986 transitions. [2023-11-29 03:37:31,129 INFO L78 Accepts]: Start accepts. Automaton has 24941 states and 37986 transitions. Word has length 354 [2023-11-29 03:37:31,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:31,129 INFO L495 AbstractCegarLoop]: Abstraction has 24941 states and 37986 transitions. [2023-11-29 03:37:31,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 22.125) internal successors, (354), 15 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 24941 states and 37986 transitions. [2023-11-29 03:37:31,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:31,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:31,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:31,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2023-11-29 03:37:31,138 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:31,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1131852377, now seen corresponding path program 1 times [2023-11-29 03:37:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:31,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934360812] [2023-11-29 03:37:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:34,241 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:34,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:34,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934360812] [2023-11-29 03:37:34,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934360812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:34,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:34,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 03:37:34,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853187023] [2023-11-29 03:37:34,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:34,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:37:34,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:34,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:37:34,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:37:34,244 INFO L87 Difference]: Start difference. First operand 24941 states and 37986 transitions. Second operand has 13 states, 13 states have (on average 27.23076923076923) internal successors, (354), 13 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:35,796 INFO L93 Difference]: Finished difference Result 127739 states and 194121 transitions. [2023-11-29 03:37:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-29 03:37:35,796 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 27.23076923076923) internal successors, (354), 13 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:35,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:35,882 INFO L225 Difference]: With dead ends: 127739 [2023-11-29 03:37:35,883 INFO L226 Difference]: Without dead ends: 109780 [2023-11-29 03:37:35,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=369, Invalid=1437, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 03:37:35,909 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 9435 mSDsluCounter, 10656 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9435 SdHoareTripleChecker+Valid, 11835 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:35,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9435 Valid, 11835 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:37:35,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109780 states. [2023-11-29 03:37:36,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109780 to 25029. [2023-11-29 03:37:36,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25029 states, 25028 states have (on average 1.5221352085664057) internal successors, (38096), 25028 states have internal predecessors, (38096), 0 states have call successors, (0), 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 03:37:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25029 states to 25029 states and 38096 transitions. [2023-11-29 03:37:36,490 INFO L78 Accepts]: Start accepts. Automaton has 25029 states and 38096 transitions. Word has length 354 [2023-11-29 03:37:36,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:36,491 INFO L495 AbstractCegarLoop]: Abstraction has 25029 states and 38096 transitions. [2023-11-29 03:37:36,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 27.23076923076923) internal successors, (354), 13 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 25029 states and 38096 transitions. [2023-11-29 03:37:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:36,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:36,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:36,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2023-11-29 03:37:36,501 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:36,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:36,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2116567685, now seen corresponding path program 1 times [2023-11-29 03:37:36,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:36,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891721468] [2023-11-29 03:37:36,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:36,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:37,138 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:37,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891721468] [2023-11-29 03:37:37,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891721468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:37,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:37,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:37:37,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96031469] [2023-11-29 03:37:37,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:37,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:37:37,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:37,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:37:37,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:37:37,140 INFO L87 Difference]: Start difference. First operand 25029 states and 38096 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:37,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:37,426 INFO L93 Difference]: Finished difference Result 64131 states and 97664 transitions. [2023-11-29 03:37:37,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:37:37,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:37,457 INFO L225 Difference]: With dead ends: 64131 [2023-11-29 03:37:37,457 INFO L226 Difference]: Without dead ends: 45328 [2023-11-29 03:37:37,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:37:37,471 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 1329 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 3487 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:37,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 3487 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:37:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45328 states. [2023-11-29 03:37:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45328 to 26061. [2023-11-29 03:37:37,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26061 states, 26060 states have (on average 1.5226400613967768) internal successors, (39680), 26060 states have internal predecessors, (39680), 0 states have call successors, (0), 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 03:37:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26061 states to 26061 states and 39680 transitions. [2023-11-29 03:37:37,862 INFO L78 Accepts]: Start accepts. Automaton has 26061 states and 39680 transitions. Word has length 354 [2023-11-29 03:37:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:37,862 INFO L495 AbstractCegarLoop]: Abstraction has 26061 states and 39680 transitions. [2023-11-29 03:37:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:37,862 INFO L276 IsEmpty]: Start isEmpty. Operand 26061 states and 39680 transitions. [2023-11-29 03:37:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:37,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:37,872 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:37,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2023-11-29 03:37:37,872 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:37,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1497662587, now seen corresponding path program 1 times [2023-11-29 03:37:37,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:37,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980719768] [2023-11-29 03:37:37,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:37,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:39,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:39,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980719768] [2023-11-29 03:37:39,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980719768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:39,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:39,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:37:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025766672] [2023-11-29 03:37:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:39,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:37:39,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:39,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:37:39,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:37:39,171 INFO L87 Difference]: Start difference. First operand 26061 states and 39680 transitions. Second operand has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:40,037 INFO L93 Difference]: Finished difference Result 65811 states and 100056 transitions. [2023-11-29 03:37:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:37:40,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:40,072 INFO L225 Difference]: With dead ends: 65811 [2023-11-29 03:37:40,072 INFO L226 Difference]: Without dead ends: 45920 [2023-11-29 03:37:40,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:37:40,086 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 1411 mSDsluCounter, 3392 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:40,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 4328 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:37:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45920 states. [2023-11-29 03:37:40,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45920 to 26253. [2023-11-29 03:37:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26253 states, 26252 states have (on average 1.518817613896084) internal successors, (39872), 26252 states have internal predecessors, (39872), 0 states have call successors, (0), 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 03:37:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26253 states to 26253 states and 39872 transitions. [2023-11-29 03:37:40,711 INFO L78 Accepts]: Start accepts. Automaton has 26253 states and 39872 transitions. Word has length 354 [2023-11-29 03:37:40,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:40,711 INFO L495 AbstractCegarLoop]: Abstraction has 26253 states and 39872 transitions. [2023-11-29 03:37:40,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 6 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:40,712 INFO L276 IsEmpty]: Start isEmpty. Operand 26253 states and 39872 transitions. [2023-11-29 03:37:40,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:40,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:40,726 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:40,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2023-11-29 03:37:40,726 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:40,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:40,727 INFO L85 PathProgramCache]: Analyzing trace with hash -700108383, now seen corresponding path program 1 times [2023-11-29 03:37:40,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:40,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785336929] [2023-11-29 03:37:40,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:40,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:37:44,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:44,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785336929] [2023-11-29 03:37:44,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785336929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:44,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:44,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:37:44,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771761028] [2023-11-29 03:37:44,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:44,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:37:44,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:44,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:37:44,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:37:44,218 INFO L87 Difference]: Start difference. First operand 26253 states and 39872 transitions. Second operand has 12 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:46,149 INFO L93 Difference]: Finished difference Result 84637 states and 128901 transitions. [2023-11-29 03:37:46,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:37:46,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:46,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:46,197 INFO L225 Difference]: With dead ends: 84637 [2023-11-29 03:37:46,197 INFO L226 Difference]: Without dead ends: 65870 [2023-11-29 03:37:46,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=296, Invalid=634, Unknown=0, NotChecked=0, Total=930 [2023-11-29 03:37:46,214 INFO L413 NwaCegarLoop]: 1263 mSDtfsCounter, 11673 mSDsluCounter, 8921 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11673 SdHoareTripleChecker+Valid, 10184 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:46,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11673 Valid, 10184 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:37:46,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65870 states. [2023-11-29 03:37:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65870 to 26474. [2023-11-29 03:37:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26474 states, 26473 states have (on average 1.5165262720507686) internal successors, (40147), 26473 states have internal predecessors, (40147), 0 states have call successors, (0), 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 03:37:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26474 states to 26474 states and 40147 transitions. [2023-11-29 03:37:46,743 INFO L78 Accepts]: Start accepts. Automaton has 26474 states and 40147 transitions. Word has length 354 [2023-11-29 03:37:46,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:46,744 INFO L495 AbstractCegarLoop]: Abstraction has 26474 states and 40147 transitions. [2023-11-29 03:37:46,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.5) internal successors, (354), 12 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:46,744 INFO L276 IsEmpty]: Start isEmpty. Operand 26474 states and 40147 transitions. [2023-11-29 03:37:46,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:46,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:46,755 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:46,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2023-11-29 03:37:46,755 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:46,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1929244523, now seen corresponding path program 1 times [2023-11-29 03:37:46,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:46,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664354710] [2023-11-29 03:37:46,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:47,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:47,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664354710] [2023-11-29 03:37:47,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664354710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:47,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:47,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:37:47,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748876932] [2023-11-29 03:37:47,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:47,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:37:47,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:47,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:37:47,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:37:47,251 INFO L87 Difference]: Start difference. First operand 26474 states and 40147 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:47,540 INFO L93 Difference]: Finished difference Result 61884 states and 93493 transitions. [2023-11-29 03:37:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:37:47,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:47,567 INFO L225 Difference]: With dead ends: 61884 [2023-11-29 03:37:47,567 INFO L226 Difference]: Without dead ends: 39714 [2023-11-29 03:37:47,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:37:47,581 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 1329 mSDsluCounter, 2441 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:47,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 3499 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:37:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39714 states. [2023-11-29 03:37:47,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39714 to 26058. [2023-11-29 03:37:47,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26058 states, 26057 states have (on average 1.5108032390528456) internal successors, (39367), 26057 states have internal predecessors, (39367), 0 states have call successors, (0), 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 03:37:47,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26058 states to 26058 states and 39367 transitions. [2023-11-29 03:37:47,933 INFO L78 Accepts]: Start accepts. Automaton has 26058 states and 39367 transitions. Word has length 354 [2023-11-29 03:37:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:47,933 INFO L495 AbstractCegarLoop]: Abstraction has 26058 states and 39367 transitions. [2023-11-29 03:37:47,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand 26058 states and 39367 transitions. [2023-11-29 03:37:47,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-11-29 03:37:47,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:47,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:47,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2023-11-29 03:37:47,944 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:47,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:47,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1572447059, now seen corresponding path program 1 times [2023-11-29 03:37:47,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:47,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760977245] [2023-11-29 03:37:47,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:47,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:48,459 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:48,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:48,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760977245] [2023-11-29 03:37:48,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760977245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:48,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:48,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:37:48,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956853991] [2023-11-29 03:37:48,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:48,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:37:48,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:37:48,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:37:48,462 INFO L87 Difference]: Start difference. First operand 26058 states and 39367 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:48,814 INFO L93 Difference]: Finished difference Result 76080 states and 115310 transitions. [2023-11-29 03:37:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:37:48,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 354 [2023-11-29 03:37:48,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:48,851 INFO L225 Difference]: With dead ends: 76080 [2023-11-29 03:37:48,851 INFO L226 Difference]: Without dead ends: 52026 [2023-11-29 03:37:48,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:37:48,864 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 1397 mSDsluCounter, 2408 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:48,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 3339 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:37:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52026 states. [2023-11-29 03:37:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52026 to 28382. [2023-11-29 03:37:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28382 states, 28381 states have (on average 1.5141820231845249) internal successors, (42974), 28381 states have internal predecessors, (42974), 0 states have call successors, (0), 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 03:37:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28382 states to 28382 states and 42974 transitions. [2023-11-29 03:37:49,261 INFO L78 Accepts]: Start accepts. Automaton has 28382 states and 42974 transitions. Word has length 354 [2023-11-29 03:37:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:49,261 INFO L495 AbstractCegarLoop]: Abstraction has 28382 states and 42974 transitions. [2023-11-29 03:37:49,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 0 states have call successors, (0), 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 03:37:49,262 INFO L276 IsEmpty]: Start isEmpty. Operand 28382 states and 42974 transitions. [2023-11-29 03:37:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:37:49,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:49,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:49,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2023-11-29 03:37:49,272 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:49,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2055386223, now seen corresponding path program 1 times [2023-11-29 03:37:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:49,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853437051] [2023-11-29 03:37:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:51,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853437051] [2023-11-29 03:37:51,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853437051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:51,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:51,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:37:51,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934328417] [2023-11-29 03:37:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:51,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:37:51,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:51,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:37:51,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:37:51,154 INFO L87 Difference]: Start difference. First operand 28382 states and 42974 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:37:51,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:51,897 INFO L93 Difference]: Finished difference Result 59581 states and 90015 transitions. [2023-11-29 03:37:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:37:51,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:37:51,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:51,918 INFO L225 Difference]: With dead ends: 59581 [2023-11-29 03:37:51,918 INFO L226 Difference]: Without dead ends: 32123 [2023-11-29 03:37:51,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:37:51,931 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 3116 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:51,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 3574 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:37:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32123 states. [2023-11-29 03:37:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32123 to 28382. [2023-11-29 03:37:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28382 states, 28381 states have (on average 1.514146788344315) internal successors, (42973), 28381 states have internal predecessors, (42973), 0 states have call successors, (0), 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 03:37:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28382 states to 28382 states and 42973 transitions. [2023-11-29 03:37:52,325 INFO L78 Accepts]: Start accepts. Automaton has 28382 states and 42973 transitions. Word has length 355 [2023-11-29 03:37:52,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:52,325 INFO L495 AbstractCegarLoop]: Abstraction has 28382 states and 42973 transitions. [2023-11-29 03:37:52,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:37:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 28382 states and 42973 transitions. [2023-11-29 03:37:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:37:52,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:52,336 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:52,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2023-11-29 03:37:52,336 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:52,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:52,336 INFO L85 PathProgramCache]: Analyzing trace with hash -152005135, now seen corresponding path program 1 times [2023-11-29 03:37:52,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:52,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213371984] [2023-11-29 03:37:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:52,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:54,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:54,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213371984] [2023-11-29 03:37:54,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213371984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:54,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:54,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:37:54,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371372310] [2023-11-29 03:37:54,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:54,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:37:54,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:54,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:37:54,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:37:54,195 INFO L87 Difference]: Start difference. First operand 28382 states and 42973 transitions. Second operand has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:37:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:54,556 INFO L93 Difference]: Finished difference Result 57607 states and 87041 transitions. [2023-11-29 03:37:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:37:54,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:37:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:54,576 INFO L225 Difference]: With dead ends: 57607 [2023-11-29 03:37:54,576 INFO L226 Difference]: Without dead ends: 30148 [2023-11-29 03:37:54,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:37:54,588 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 2502 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2502 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:54,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2502 Valid, 3344 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:37:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30148 states. [2023-11-29 03:37:54,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30148 to 26407. [2023-11-29 03:37:54,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26407 states, 26406 states have (on average 1.514731500416572) internal successors, (39998), 26406 states have internal predecessors, (39998), 0 states have call successors, (0), 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 03:37:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26407 states to 26407 states and 39998 transitions. [2023-11-29 03:37:54,990 INFO L78 Accepts]: Start accepts. Automaton has 26407 states and 39998 transitions. Word has length 355 [2023-11-29 03:37:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:54,990 INFO L495 AbstractCegarLoop]: Abstraction has 26407 states and 39998 transitions. [2023-11-29 03:37:54,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:37:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 26407 states and 39998 transitions. [2023-11-29 03:37:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:37:54,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:54,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:54,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2023-11-29 03:37:54,997 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:54,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:54,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1072829863, now seen corresponding path program 1 times [2023-11-29 03:37:54,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:54,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722857632] [2023-11-29 03:37:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:37:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:37:57,435 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:37:57,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:37:57,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722857632] [2023-11-29 03:37:57,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722857632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:37:57,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:37:57,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:37:57,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154839813] [2023-11-29 03:37:57,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:37:57,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:37:57,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:37:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:37:57,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:37:57,438 INFO L87 Difference]: Start difference. First operand 26407 states and 39998 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:37:57,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:57,838 INFO L93 Difference]: Finished difference Result 57970 states and 87485 transitions. [2023-11-29 03:37:57,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:37:57,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:37:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:57,861 INFO L225 Difference]: With dead ends: 57970 [2023-11-29 03:37:57,861 INFO L226 Difference]: Without dead ends: 34742 [2023-11-29 03:37:57,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:37:57,874 INFO L413 NwaCegarLoop]: 878 mSDtfsCounter, 4041 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4041 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:57,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4041 Valid, 3518 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:37:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34742 states. [2023-11-29 03:37:58,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34742 to 26177. [2023-11-29 03:37:58,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26177 states, 26176 states have (on average 1.51505195599022) internal successors, (39658), 26176 states have internal predecessors, (39658), 0 states have call successors, (0), 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 03:37:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26177 states to 26177 states and 39658 transitions. [2023-11-29 03:37:58,285 INFO L78 Accepts]: Start accepts. Automaton has 26177 states and 39658 transitions. Word has length 355 [2023-11-29 03:37:58,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:58,286 INFO L495 AbstractCegarLoop]: Abstraction has 26177 states and 39658 transitions. [2023-11-29 03:37:58,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:37:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 26177 states and 39658 transitions. [2023-11-29 03:37:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:37:58,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:58,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:37:58,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2023-11-29 03:37:58,296 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:58,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1459311707, now seen corresponding path program 1 times [2023-11-29 03:37:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:37:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063977490] [2023-11-29 03:37:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:37:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:01,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:01,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063977490] [2023-11-29 03:38:01,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063977490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:01,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:01,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:38:01,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159791589] [2023-11-29 03:38:01,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:01,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:38:01,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:01,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:38:01,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:38:01,660 INFO L87 Difference]: Start difference. First operand 26177 states and 39658 transitions. Second operand has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:02,342 INFO L93 Difference]: Finished difference Result 95485 states and 144899 transitions. [2023-11-29 03:38:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:38:02,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:02,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:02,395 INFO L225 Difference]: With dead ends: 95485 [2023-11-29 03:38:02,395 INFO L226 Difference]: Without dead ends: 71729 [2023-11-29 03:38:02,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:38:02,415 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 4309 mSDsluCounter, 5208 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4309 SdHoareTripleChecker+Valid, 6116 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:02,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4309 Valid, 6116 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:38:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71729 states. [2023-11-29 03:38:02,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71729 to 26271. [2023-11-29 03:38:02,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26271 states, 26270 states have (on average 1.5116102017510469) internal successors, (39710), 26270 states have internal predecessors, (39710), 0 states have call successors, (0), 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 03:38:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26271 states to 26271 states and 39710 transitions. [2023-11-29 03:38:02,874 INFO L78 Accepts]: Start accepts. Automaton has 26271 states and 39710 transitions. Word has length 355 [2023-11-29 03:38:02,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:02,874 INFO L495 AbstractCegarLoop]: Abstraction has 26271 states and 39710 transitions. [2023-11-29 03:38:02,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 26271 states and 39710 transitions. [2023-11-29 03:38:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:02,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:02,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:02,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2023-11-29 03:38:02,882 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:02,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:02,883 INFO L85 PathProgramCache]: Analyzing trace with hash 586901145, now seen corresponding path program 1 times [2023-11-29 03:38:02,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:02,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969794199] [2023-11-29 03:38:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:02,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:06,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:06,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969794199] [2023-11-29 03:38:06,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969794199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:06,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:06,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:38:06,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473390097] [2023-11-29 03:38:06,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:06,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:38:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:06,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:38:06,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:38:06,295 INFO L87 Difference]: Start difference. First operand 26271 states and 39710 transitions. Second operand has 14 states, 14 states have (on average 25.357142857142858) internal successors, (355), 14 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:08,044 INFO L93 Difference]: Finished difference Result 110055 states and 166282 transitions. [2023-11-29 03:38:08,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 03:38:08,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 25.357142857142858) internal successors, (355), 14 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:08,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:08,108 INFO L225 Difference]: With dead ends: 110055 [2023-11-29 03:38:08,109 INFO L226 Difference]: Without dead ends: 88959 [2023-11-29 03:38:08,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=399, Invalid=1161, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 03:38:08,131 INFO L413 NwaCegarLoop]: 1889 mSDtfsCounter, 7355 mSDsluCounter, 13768 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7355 SdHoareTripleChecker+Valid, 15657 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:08,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7355 Valid, 15657 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:38:08,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88959 states. [2023-11-29 03:38:08,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88959 to 27351. [2023-11-29 03:38:08,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27351 states, 27350 states have (on average 1.509835466179159) internal successors, (41294), 27350 states have internal predecessors, (41294), 0 states have call successors, (0), 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 03:38:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27351 states to 27351 states and 41294 transitions. [2023-11-29 03:38:08,733 INFO L78 Accepts]: Start accepts. Automaton has 27351 states and 41294 transitions. Word has length 355 [2023-11-29 03:38:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:08,733 INFO L495 AbstractCegarLoop]: Abstraction has 27351 states and 41294 transitions. [2023-11-29 03:38:08,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.357142857142858) internal successors, (355), 14 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 27351 states and 41294 transitions. [2023-11-29 03:38:08,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:08,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:08,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:08,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2023-11-29 03:38:08,741 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:08,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:08,741 INFO L85 PathProgramCache]: Analyzing trace with hash 931729307, now seen corresponding path program 1 times [2023-11-29 03:38:08,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:08,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043168025] [2023-11-29 03:38:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:08,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:13,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:13,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043168025] [2023-11-29 03:38:13,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043168025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:13,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:13,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-29 03:38:13,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963934401] [2023-11-29 03:38:13,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:13,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:38:13,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:13,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:38:13,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:38:13,410 INFO L87 Difference]: Start difference. First operand 27351 states and 41294 transitions. Second operand has 18 states, 18 states have (on average 19.72222222222222) internal successors, (355), 17 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:17,428 INFO L93 Difference]: Finished difference Result 171702 states and 258686 transitions. [2023-11-29 03:38:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-11-29 03:38:17,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 19.72222222222222) internal successors, (355), 17 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:17,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:17,533 INFO L225 Difference]: With dead ends: 171702 [2023-11-29 03:38:17,534 INFO L226 Difference]: Without dead ends: 144427 [2023-11-29 03:38:17,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1288 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1053, Invalid=4059, Unknown=0, NotChecked=0, Total=5112 [2023-11-29 03:38:17,565 INFO L413 NwaCegarLoop]: 1270 mSDtfsCounter, 10112 mSDsluCounter, 23515 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10112 SdHoareTripleChecker+Valid, 24785 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:17,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10112 Valid, 24785 Invalid, 836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:38:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144427 states. [2023-11-29 03:38:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144427 to 32764. [2023-11-29 03:38:18,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32764 states, 32763 states have (on average 1.5141165338949425) internal successors, (49607), 32763 states have internal predecessors, (49607), 0 states have call successors, (0), 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 03:38:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32764 states to 32764 states and 49607 transitions. [2023-11-29 03:38:18,339 INFO L78 Accepts]: Start accepts. Automaton has 32764 states and 49607 transitions. Word has length 355 [2023-11-29 03:38:18,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:18,340 INFO L495 AbstractCegarLoop]: Abstraction has 32764 states and 49607 transitions. [2023-11-29 03:38:18,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.72222222222222) internal successors, (355), 17 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 32764 states and 49607 transitions. [2023-11-29 03:38:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:18,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:18,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:18,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2023-11-29 03:38:18,350 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:18,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash 858144729, now seen corresponding path program 1 times [2023-11-29 03:38:18,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:18,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013471460] [2023-11-29 03:38:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:21,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:21,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013471460] [2023-11-29 03:38:21,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013471460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:21,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:21,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:38:21,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406351398] [2023-11-29 03:38:21,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:21,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:38:21,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:21,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:38:21,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:38:21,774 INFO L87 Difference]: Start difference. First operand 32764 states and 49607 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:22,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:22,459 INFO L93 Difference]: Finished difference Result 89948 states and 136216 transitions. [2023-11-29 03:38:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:38:22,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:22,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:22,504 INFO L225 Difference]: With dead ends: 89948 [2023-11-29 03:38:22,504 INFO L226 Difference]: Without dead ends: 64732 [2023-11-29 03:38:22,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:38:22,522 INFO L413 NwaCegarLoop]: 1457 mSDtfsCounter, 4077 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4077 SdHoareTripleChecker+Valid, 6078 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:22,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4077 Valid, 6078 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:38:22,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64732 states. [2023-11-29 03:38:23,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64732 to 37480. [2023-11-29 03:38:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37480 states, 37479 states have (on average 1.5151151311401052) internal successors, (56785), 37479 states have internal predecessors, (56785), 0 states have call successors, (0), 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 03:38:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37480 states to 37480 states and 56785 transitions. [2023-11-29 03:38:23,248 INFO L78 Accepts]: Start accepts. Automaton has 37480 states and 56785 transitions. Word has length 355 [2023-11-29 03:38:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:23,248 INFO L495 AbstractCegarLoop]: Abstraction has 37480 states and 56785 transitions. [2023-11-29 03:38:23,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 7 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 37480 states and 56785 transitions. [2023-11-29 03:38:23,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:23,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:23,261 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:23,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2023-11-29 03:38:23,261 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:23,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash -870568855, now seen corresponding path program 1 times [2023-11-29 03:38:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:23,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262717233] [2023-11-29 03:38:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:23,747 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262717233] [2023-11-29 03:38:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262717233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:23,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:23,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:38:23,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766595871] [2023-11-29 03:38:23,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:23,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:38:23,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:23,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:38:23,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:38:23,749 INFO L87 Difference]: Start difference. First operand 37480 states and 56785 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:24,073 INFO L93 Difference]: Finished difference Result 88313 states and 133772 transitions. [2023-11-29 03:38:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:38:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:24,117 INFO L225 Difference]: With dead ends: 88313 [2023-11-29 03:38:24,117 INFO L226 Difference]: Without dead ends: 63143 [2023-11-29 03:38:24,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:38:24,136 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 1326 mSDsluCounter, 2528 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 3712 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:24,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 3712 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:38:24,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63143 states. [2023-11-29 03:38:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63143 to 37813. [2023-11-29 03:38:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37813 states, 37812 states have (on average 1.5143605204696922) internal successors, (57261), 37812 states have internal predecessors, (57261), 0 states have call successors, (0), 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 03:38:24,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37813 states to 37813 states and 57261 transitions. [2023-11-29 03:38:24,624 INFO L78 Accepts]: Start accepts. Automaton has 37813 states and 57261 transitions. Word has length 355 [2023-11-29 03:38:24,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:24,625 INFO L495 AbstractCegarLoop]: Abstraction has 37813 states and 57261 transitions. [2023-11-29 03:38:24,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:24,625 INFO L276 IsEmpty]: Start isEmpty. Operand 37813 states and 57261 transitions. [2023-11-29 03:38:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:24,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:24,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:24,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2023-11-29 03:38:24,638 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:24,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:24,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1662928679, now seen corresponding path program 1 times [2023-11-29 03:38:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:24,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853392075] [2023-11-29 03:38:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:24,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:38:28,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:28,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853392075] [2023-11-29 03:38:28,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853392075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:28,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:28,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:38:28,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786580254] [2023-11-29 03:38:28,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:28,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:38:28,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:28,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:38:28,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:38:28,541 INFO L87 Difference]: Start difference. First operand 37813 states and 57261 transitions. Second operand has 12 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:31,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:31,532 INFO L93 Difference]: Finished difference Result 136270 states and 207138 transitions. [2023-11-29 03:38:31,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 03:38:31,533 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:31,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:31,614 INFO L225 Difference]: With dead ends: 136270 [2023-11-29 03:38:31,614 INFO L226 Difference]: Without dead ends: 110951 [2023-11-29 03:38:31,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=401, Invalid=1239, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 03:38:31,641 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 10900 mSDsluCounter, 11187 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10900 SdHoareTripleChecker+Valid, 11926 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:31,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10900 Valid, 11926 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:38:31,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110951 states. [2023-11-29 03:38:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110951 to 37743. [2023-11-29 03:38:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37743 states, 37742 states have (on average 1.514599120343384) internal successors, (57164), 37742 states have internal predecessors, (57164), 0 states have call successors, (0), 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 03:38:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37743 states to 37743 states and 57164 transitions. [2023-11-29 03:38:32,350 INFO L78 Accepts]: Start accepts. Automaton has 37743 states and 57164 transitions. Word has length 355 [2023-11-29 03:38:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:32,351 INFO L495 AbstractCegarLoop]: Abstraction has 37743 states and 57164 transitions. [2023-11-29 03:38:32,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.583333333333332) internal successors, (355), 12 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 37743 states and 57164 transitions. [2023-11-29 03:38:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:32,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:32,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:32,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2023-11-29 03:38:32,364 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:32,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash -780778121, now seen corresponding path program 1 times [2023-11-29 03:38:32,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:32,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118579231] [2023-11-29 03:38:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:32,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:38:36,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:36,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118579231] [2023-11-29 03:38:36,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118579231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:36,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:36,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:38:36,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442660142] [2023-11-29 03:38:36,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:36,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:38:36,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:36,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:38:36,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:38:36,808 INFO L87 Difference]: Start difference. First operand 37743 states and 57164 transitions. Second operand has 14 states, 14 states have (on average 25.357142857142858) internal successors, (355), 14 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:39,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:39,185 INFO L93 Difference]: Finished difference Result 125351 states and 190135 transitions. [2023-11-29 03:38:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:38:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 25.357142857142858) internal successors, (355), 14 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:39,263 INFO L225 Difference]: With dead ends: 125351 [2023-11-29 03:38:39,263 INFO L226 Difference]: Without dead ends: 99974 [2023-11-29 03:38:39,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:38:39,289 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 10610 mSDsluCounter, 9685 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10610 SdHoareTripleChecker+Valid, 11010 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:39,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10610 Valid, 11010 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:38:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99974 states. [2023-11-29 03:38:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99974 to 37935. [2023-11-29 03:38:39,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37935 states, 37934 states have (on average 1.5136289344651237) internal successors, (57418), 37934 states have internal predecessors, (57418), 0 states have call successors, (0), 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 03:38:39,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37935 states to 37935 states and 57418 transitions. [2023-11-29 03:38:39,925 INFO L78 Accepts]: Start accepts. Automaton has 37935 states and 57418 transitions. Word has length 355 [2023-11-29 03:38:39,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:39,926 INFO L495 AbstractCegarLoop]: Abstraction has 37935 states and 57418 transitions. [2023-11-29 03:38:39,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.357142857142858) internal successors, (355), 14 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 37935 states and 57418 transitions. [2023-11-29 03:38:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:39,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:39,939 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:39,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2023-11-29 03:38:39,939 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:39,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1993833417, now seen corresponding path program 1 times [2023-11-29 03:38:39,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:39,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806506635] [2023-11-29 03:38:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:39,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 03:38:41,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:41,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806506635] [2023-11-29 03:38:41,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806506635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:41,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:41,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:38:41,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977750063] [2023-11-29 03:38:41,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:41,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:38:41,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:38:41,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:38:41,579 INFO L87 Difference]: Start difference. First operand 37935 states and 57418 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 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 03:38:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:42,122 INFO L93 Difference]: Finished difference Result 88531 states and 134019 transitions. [2023-11-29 03:38:42,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:38:42,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:42,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:42,180 INFO L225 Difference]: With dead ends: 88531 [2023-11-29 03:38:42,180 INFO L226 Difference]: Without dead ends: 62871 [2023-11-29 03:38:42,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:38:42,203 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 2614 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:42,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 2101 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:38:42,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62871 states. [2023-11-29 03:38:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62871 to 37928. [2023-11-29 03:38:42,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37928 states, 37927 states have (on average 1.5127745405647692) internal successors, (57375), 37927 states have internal predecessors, (57375), 0 states have call successors, (0), 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 03:38:42,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37928 states to 37928 states and 57375 transitions. [2023-11-29 03:38:42,710 INFO L78 Accepts]: Start accepts. Automaton has 37928 states and 57375 transitions. Word has length 355 [2023-11-29 03:38:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:42,710 INFO L495 AbstractCegarLoop]: Abstraction has 37928 states and 57375 transitions. [2023-11-29 03:38:42,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 0 states have call successors, (0), 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 03:38:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand 37928 states and 57375 transitions. [2023-11-29 03:38:42,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:42,722 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:42,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:42,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2023-11-29 03:38:42,722 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:42,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash -94787325, now seen corresponding path program 1 times [2023-11-29 03:38:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:42,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797469397] [2023-11-29 03:38:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:42,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:43,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:43,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797469397] [2023-11-29 03:38:43,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797469397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:43,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:43,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:38:43,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210264629] [2023-11-29 03:38:43,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:43,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:38:43,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:43,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:38:43,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:38:43,330 INFO L87 Difference]: Start difference. First operand 37928 states and 57375 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:43,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:43,900 INFO L93 Difference]: Finished difference Result 126652 states and 191821 transitions. [2023-11-29 03:38:43,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:38:43,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:43,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:43,970 INFO L225 Difference]: With dead ends: 126652 [2023-11-29 03:38:43,970 INFO L226 Difference]: Without dead ends: 101098 [2023-11-29 03:38:43,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:38:43,993 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 1486 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:43,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 3947 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:38:44,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101098 states. [2023-11-29 03:38:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101098 to 61962. [2023-11-29 03:38:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61962 states, 61961 states have (on average 1.5143235260889916) internal successors, (93829), 61961 states have internal predecessors, (93829), 0 states have call successors, (0), 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 03:38:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61962 states to 61962 states and 93829 transitions. [2023-11-29 03:38:44,726 INFO L78 Accepts]: Start accepts. Automaton has 61962 states and 93829 transitions. Word has length 355 [2023-11-29 03:38:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:44,727 INFO L495 AbstractCegarLoop]: Abstraction has 61962 states and 93829 transitions. [2023-11-29 03:38:44,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 61962 states and 93829 transitions. [2023-11-29 03:38:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:44,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:44,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:44,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2023-11-29 03:38:44,748 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:44,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:44,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1893046499, now seen corresponding path program 1 times [2023-11-29 03:38:44,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:44,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262092339] [2023-11-29 03:38:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:44,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262092339] [2023-11-29 03:38:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262092339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:45,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:38:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526063663] [2023-11-29 03:38:45,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:45,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:38:45,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:38:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:38:45,317 INFO L87 Difference]: Start difference. First operand 61962 states and 93829 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:45,571 INFO L93 Difference]: Finished difference Result 101566 states and 153794 transitions. [2023-11-29 03:38:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:38:45,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:45,618 INFO L225 Difference]: With dead ends: 101566 [2023-11-29 03:38:45,618 INFO L226 Difference]: Without dead ends: 62226 [2023-11-29 03:38:45,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:38:45,640 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 1 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:45,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2003 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:38:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62226 states. [2023-11-29 03:38:46,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62226 to 62138. [2023-11-29 03:38:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62138 states, 62137 states have (on average 1.5128667299676521) internal successors, (94005), 62137 states have internal predecessors, (94005), 0 states have call successors, (0), 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 03:38:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62138 states to 62138 states and 94005 transitions. [2023-11-29 03:38:46,734 INFO L78 Accepts]: Start accepts. Automaton has 62138 states and 94005 transitions. Word has length 355 [2023-11-29 03:38:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:46,734 INFO L495 AbstractCegarLoop]: Abstraction has 62138 states and 94005 transitions. [2023-11-29 03:38:46,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:46,734 INFO L276 IsEmpty]: Start isEmpty. Operand 62138 states and 94005 transitions. [2023-11-29 03:38:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:46,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:46,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:46,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2023-11-29 03:38:46,757 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:46,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:46,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1240260129, now seen corresponding path program 1 times [2023-11-29 03:38:46,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:46,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301804951] [2023-11-29 03:38:46,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:46,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:47,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:47,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301804951] [2023-11-29 03:38:47,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301804951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:47,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:47,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:38:47,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371411386] [2023-11-29 03:38:47,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:47,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:38:47,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:47,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:38:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:38:47,328 INFO L87 Difference]: Start difference. First operand 62138 states and 94005 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:47,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:47,602 INFO L93 Difference]: Finished difference Result 103506 states and 156692 transitions. [2023-11-29 03:38:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:38:47,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:47,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:47,651 INFO L225 Difference]: With dead ends: 103506 [2023-11-29 03:38:47,651 INFO L226 Difference]: Without dead ends: 62154 [2023-11-29 03:38:47,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:38:47,674 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 1104 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:47,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 1523 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:38:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62154 states. [2023-11-29 03:38:48,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62154 to 61866. [2023-11-29 03:38:48,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61866 states, 61865 states have (on average 1.5085266305665561) internal successors, (93325), 61865 states have internal predecessors, (93325), 0 states have call successors, (0), 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 03:38:48,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61866 states to 61866 states and 93325 transitions. [2023-11-29 03:38:48,395 INFO L78 Accepts]: Start accepts. Automaton has 61866 states and 93325 transitions. Word has length 355 [2023-11-29 03:38:48,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:48,396 INFO L495 AbstractCegarLoop]: Abstraction has 61866 states and 93325 transitions. [2023-11-29 03:38:48,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:48,396 INFO L276 IsEmpty]: Start isEmpty. Operand 61866 states and 93325 transitions. [2023-11-29 03:38:48,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:48,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:48,420 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:48,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2023-11-29 03:38:48,420 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:48,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1326949639, now seen corresponding path program 1 times [2023-11-29 03:38:48,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:48,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623826006] [2023-11-29 03:38:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:48,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:51,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:51,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623826006] [2023-11-29 03:38:51,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623826006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:51,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:51,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:38:51,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748243840] [2023-11-29 03:38:51,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:51,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:38:51,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:51,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:38:51,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:38:51,691 INFO L87 Difference]: Start difference. First operand 61866 states and 93325 transitions. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:53,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:53,250 INFO L93 Difference]: Finished difference Result 253336 states and 382022 transitions. [2023-11-29 03:38:53,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:38:53,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:38:53,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:53,395 INFO L225 Difference]: With dead ends: 253336 [2023-11-29 03:38:53,395 INFO L226 Difference]: Without dead ends: 214092 [2023-11-29 03:38:53,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:38:53,414 INFO L413 NwaCegarLoop]: 1271 mSDtfsCounter, 6457 mSDsluCounter, 9407 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6457 SdHoareTripleChecker+Valid, 10678 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:53,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6457 Valid, 10678 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:38:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214092 states. [2023-11-29 03:38:54,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214092 to 62053. [2023-11-29 03:38:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62053 states, 62052 states have (on average 1.5077032166569972) internal successors, (93556), 62052 states have internal predecessors, (93556), 0 states have call successors, (0), 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 03:38:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62053 states to 62053 states and 93556 transitions. [2023-11-29 03:38:54,824 INFO L78 Accepts]: Start accepts. Automaton has 62053 states and 93556 transitions. Word has length 355 [2023-11-29 03:38:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:54,825 INFO L495 AbstractCegarLoop]: Abstraction has 62053 states and 93556 transitions. [2023-11-29 03:38:54,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:38:54,825 INFO L276 IsEmpty]: Start isEmpty. Operand 62053 states and 93556 transitions. [2023-11-29 03:38:54,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:38:54,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:54,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:54,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2023-11-29 03:38:54,864 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:54,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:54,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1973323959, now seen corresponding path program 1 times [2023-11-29 03:38:54,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:38:54,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332035086] [2023-11-29 03:38:54,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:38:54,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:38:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:38:57,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:38:57,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332035086] [2023-11-29 03:38:57,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332035086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:38:57,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:38:57,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:38:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51562346] [2023-11-29 03:38:57,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:38:57,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:38:57,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:38:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:38:57,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:38:57,978 INFO L87 Difference]: Start difference. First operand 62053 states and 93556 transitions. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:00,013 INFO L93 Difference]: Finished difference Result 375869 states and 567254 transitions. [2023-11-29 03:39:00,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:39:00,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:39:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:00,410 INFO L225 Difference]: With dead ends: 375869 [2023-11-29 03:39:00,410 INFO L226 Difference]: Without dead ends: 336540 [2023-11-29 03:39:00,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:39:00,446 INFO L413 NwaCegarLoop]: 1953 mSDtfsCounter, 8801 mSDsluCounter, 11323 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8801 SdHoareTripleChecker+Valid, 13276 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:00,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8801 Valid, 13276 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:39:00,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336540 states. [2023-11-29 03:39:02,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336540 to 62113. [2023-11-29 03:39:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62113 states, 62112 states have (on average 1.507599175682638) internal successors, (93640), 62112 states have internal predecessors, (93640), 0 states have call successors, (0), 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 03:39:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62113 states to 62113 states and 93640 transitions. [2023-11-29 03:39:02,303 INFO L78 Accepts]: Start accepts. Automaton has 62113 states and 93640 transitions. Word has length 355 [2023-11-29 03:39:02,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:02,304 INFO L495 AbstractCegarLoop]: Abstraction has 62113 states and 93640 transitions. [2023-11-29 03:39:02,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 62113 states and 93640 transitions. [2023-11-29 03:39:02,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:39:02,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:02,323 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:02,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2023-11-29 03:39:02,323 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:02,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:02,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1150197629, now seen corresponding path program 1 times [2023-11-29 03:39:02,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:02,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462704415] [2023-11-29 03:39:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:02,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:05,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:05,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462704415] [2023-11-29 03:39:05,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462704415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:05,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:05,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:39:05,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404556391] [2023-11-29 03:39:05,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:39:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:39:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:39:05,401 INFO L87 Difference]: Start difference. First operand 62113 states and 93640 transitions. Second operand has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:06,196 INFO L93 Difference]: Finished difference Result 104600 states and 157750 transitions. [2023-11-29 03:39:06,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:39:06,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:39:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:06,239 INFO L225 Difference]: With dead ends: 104600 [2023-11-29 03:39:06,239 INFO L226 Difference]: Without dead ends: 65211 [2023-11-29 03:39:06,259 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 03:39:06,259 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 1048 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 4821 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:06,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 4821 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:39:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65211 states. [2023-11-29 03:39:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65211 to 62125. [2023-11-29 03:39:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62125 states, 62124 states have (on average 1.507597707810186) internal successors, (93658), 62124 states have internal predecessors, (93658), 0 states have call successors, (0), 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 03:39:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62125 states to 62125 states and 93658 transitions. [2023-11-29 03:39:06,977 INFO L78 Accepts]: Start accepts. Automaton has 62125 states and 93658 transitions. Word has length 355 [2023-11-29 03:39:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:06,977 INFO L495 AbstractCegarLoop]: Abstraction has 62125 states and 93658 transitions. [2023-11-29 03:39:06,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.714285714285715) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 62125 states and 93658 transitions. [2023-11-29 03:39:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:39:07,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:07,000 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:07,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2023-11-29 03:39:07,000 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:07,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1458589829, now seen corresponding path program 1 times [2023-11-29 03:39:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:07,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808313968] [2023-11-29 03:39:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:07,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:09,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:09,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808313968] [2023-11-29 03:39:09,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808313968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:09,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:09,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:39:09,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568795454] [2023-11-29 03:39:09,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:09,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:39:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:39:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:39:09,840 INFO L87 Difference]: Start difference. First operand 62125 states and 93658 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:10,754 INFO L93 Difference]: Finished difference Result 218959 states and 330285 transitions. [2023-11-29 03:39:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:39:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:39:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:10,876 INFO L225 Difference]: With dead ends: 218959 [2023-11-29 03:39:10,876 INFO L226 Difference]: Without dead ends: 179498 [2023-11-29 03:39:10,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:39:10,919 INFO L413 NwaCegarLoop]: 1177 mSDtfsCounter, 3867 mSDsluCounter, 6674 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 7851 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:10,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3867 Valid, 7851 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:39:11,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179498 states. [2023-11-29 03:39:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179498 to 62037. [2023-11-29 03:39:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62037 states, 62036 states have (on average 1.5081404345863691) internal successors, (93559), 62036 states have internal predecessors, (93559), 0 states have call successors, (0), 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 03:39:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62037 states to 62037 states and 93559 transitions. [2023-11-29 03:39:12,205 INFO L78 Accepts]: Start accepts. Automaton has 62037 states and 93559 transitions. Word has length 355 [2023-11-29 03:39:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:12,205 INFO L495 AbstractCegarLoop]: Abstraction has 62037 states and 93559 transitions. [2023-11-29 03:39:12,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 8 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 62037 states and 93559 transitions. [2023-11-29 03:39:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:39:12,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:12,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:12,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2023-11-29 03:39:12,228 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:12,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:12,229 INFO L85 PathProgramCache]: Analyzing trace with hash -464130275, now seen corresponding path program 1 times [2023-11-29 03:39:12,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:12,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599132754] [2023-11-29 03:39:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:15,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:15,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599132754] [2023-11-29 03:39:15,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599132754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:15,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:15,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:39:15,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924431871] [2023-11-29 03:39:15,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:15,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:39:15,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:15,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:39:15,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:39:15,085 INFO L87 Difference]: Start difference. First operand 62037 states and 93559 transitions. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:15,815 INFO L93 Difference]: Finished difference Result 120264 states and 180974 transitions. [2023-11-29 03:39:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:39:15,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:39:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:15,875 INFO L225 Difference]: With dead ends: 120264 [2023-11-29 03:39:15,875 INFO L226 Difference]: Without dead ends: 68535 [2023-11-29 03:39:15,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:39:15,907 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 2389 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:15,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 2426 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:39:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68535 states. [2023-11-29 03:39:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68535 to 62037. [2023-11-29 03:39:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62037 states, 62036 states have (on average 1.5062060738925784) internal successors, (93439), 62036 states have internal predecessors, (93439), 0 states have call successors, (0), 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 03:39:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62037 states to 62037 states and 93439 transitions. [2023-11-29 03:39:16,660 INFO L78 Accepts]: Start accepts. Automaton has 62037 states and 93439 transitions. Word has length 355 [2023-11-29 03:39:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:16,661 INFO L495 AbstractCegarLoop]: Abstraction has 62037 states and 93439 transitions. [2023-11-29 03:39:16,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:16,661 INFO L276 IsEmpty]: Start isEmpty. Operand 62037 states and 93439 transitions. [2023-11-29 03:39:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:39:16,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:16,684 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:16,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2023-11-29 03:39:16,684 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:16,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:16,685 INFO L85 PathProgramCache]: Analyzing trace with hash -937365925, now seen corresponding path program 1 times [2023-11-29 03:39:16,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:16,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568952146] [2023-11-29 03:39:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:16,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:18,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:18,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568952146] [2023-11-29 03:39:18,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568952146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:18,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:18,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:39:18,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184058425] [2023-11-29 03:39:18,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:18,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:39:18,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:18,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:39:18,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:39:18,691 INFO L87 Difference]: Start difference. First operand 62037 states and 93439 transitions. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:19,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:19,140 INFO L93 Difference]: Finished difference Result 115888 states and 174142 transitions. [2023-11-29 03:39:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:39:19,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:39:19,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:19,187 INFO L225 Difference]: With dead ends: 115888 [2023-11-29 03:39:19,187 INFO L226 Difference]: Without dead ends: 64039 [2023-11-29 03:39:19,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:39:19,212 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 2372 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:19,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 2709 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:39:19,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64039 states. [2023-11-29 03:39:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64039 to 57541. [2023-11-29 03:39:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57541 states, 57540 states have (on average 1.5030761209593326) internal successors, (86487), 57540 states have internal predecessors, (86487), 0 states have call successors, (0), 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 03:39:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57541 states to 57541 states and 86487 transitions. [2023-11-29 03:39:19,894 INFO L78 Accepts]: Start accepts. Automaton has 57541 states and 86487 transitions. Word has length 355 [2023-11-29 03:39:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:19,894 INFO L495 AbstractCegarLoop]: Abstraction has 57541 states and 86487 transitions. [2023-11-29 03:39:19,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 57541 states and 86487 transitions. [2023-11-29 03:39:19,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 03:39:19,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:19,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:19,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2023-11-29 03:39:19,915 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:19,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:19,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1082939739, now seen corresponding path program 1 times [2023-11-29 03:39:19,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:19,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881307514] [2023-11-29 03:39:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:19,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:21,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:21,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881307514] [2023-11-29 03:39:21,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881307514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:21,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:21,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:39:21,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236112102] [2023-11-29 03:39:21,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:21,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:39:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:39:21,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:39:21,199 INFO L87 Difference]: Start difference. First operand 57541 states and 86487 transitions. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:21,820 INFO L93 Difference]: Finished difference Result 124122 states and 186272 transitions. [2023-11-29 03:39:21,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:39:21,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 355 [2023-11-29 03:39:21,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:21,865 INFO L225 Difference]: With dead ends: 124122 [2023-11-29 03:39:21,865 INFO L226 Difference]: Without dead ends: 69049 [2023-11-29 03:39:21,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:39:21,877 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 3202 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:21,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 2870 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:39:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69049 states. [2023-11-29 03:39:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69049 to 54869. [2023-11-29 03:39:22,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54869 states, 54868 states have (on average 1.4975395494641686) internal successors, (82167), 54868 states have internal predecessors, (82167), 0 states have call successors, (0), 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 03:39:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54869 states to 54869 states and 82167 transitions. [2023-11-29 03:39:22,492 INFO L78 Accepts]: Start accepts. Automaton has 54869 states and 82167 transitions. Word has length 355 [2023-11-29 03:39:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:22,492 INFO L495 AbstractCegarLoop]: Abstraction has 54869 states and 82167 transitions. [2023-11-29 03:39:22,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 5 states have internal predecessors, (355), 0 states have call successors, (0), 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 03:39:22,492 INFO L276 IsEmpty]: Start isEmpty. Operand 54869 states and 82167 transitions. [2023-11-29 03:39:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:39:22,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:22,507 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:22,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2023-11-29 03:39:22,508 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:22,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:22,508 INFO L85 PathProgramCache]: Analyzing trace with hash 12449097, now seen corresponding path program 1 times [2023-11-29 03:39:22,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:22,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087765455] [2023-11-29 03:39:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:23,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:23,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087765455] [2023-11-29 03:39:23,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087765455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:23,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:23,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:39:23,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261959413] [2023-11-29 03:39:23,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:23,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:39:23,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:23,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:39:23,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:39:23,384 INFO L87 Difference]: Start difference. First operand 54869 states and 82167 transitions. Second operand has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:24,511 INFO L93 Difference]: Finished difference Result 168204 states and 251341 transitions. [2023-11-29 03:39:24,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:39:24,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:39:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:24,576 INFO L225 Difference]: With dead ends: 168204 [2023-11-29 03:39:24,576 INFO L226 Difference]: Without dead ends: 94048 [2023-11-29 03:39:24,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:39:24,610 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 2205 mSDsluCounter, 4953 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 6237 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:24,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 6237 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:39:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94048 states. [2023-11-29 03:39:25,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94048 to 55045. [2023-11-29 03:39:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55045 states, 55044 states have (on average 1.4959486955889834) internal successors, (82343), 55044 states have internal predecessors, (82343), 0 states have call successors, (0), 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 03:39:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55045 states to 55045 states and 82343 transitions. [2023-11-29 03:39:25,369 INFO L78 Accepts]: Start accepts. Automaton has 55045 states and 82343 transitions. Word has length 356 [2023-11-29 03:39:25,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:25,369 INFO L495 AbstractCegarLoop]: Abstraction has 55045 states and 82343 transitions. [2023-11-29 03:39:25,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 55045 states and 82343 transitions. [2023-11-29 03:39:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:39:25,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:25,383 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:25,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2023-11-29 03:39:25,383 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:25,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash 88922533, now seen corresponding path program 1 times [2023-11-29 03:39:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:25,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748604384] [2023-11-29 03:39:25,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:25,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:27,741 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:27,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:27,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748604384] [2023-11-29 03:39:27,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748604384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:27,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:27,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:39:27,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362364614] [2023-11-29 03:39:27,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:27,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:39:27,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:27,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:39:27,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:39:27,744 INFO L87 Difference]: Start difference. First operand 55045 states and 82343 transitions. Second operand has 8 states, 8 states have (on average 44.5) internal successors, (356), 8 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:28,593 INFO L93 Difference]: Finished difference Result 175075 states and 262043 transitions. [2023-11-29 03:39:28,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:39:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.5) internal successors, (356), 8 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:39:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:28,684 INFO L225 Difference]: With dead ends: 175075 [2023-11-29 03:39:28,684 INFO L226 Difference]: Without dead ends: 132946 [2023-11-29 03:39:28,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:39:28,716 INFO L413 NwaCegarLoop]: 2107 mSDtfsCounter, 3634 mSDsluCounter, 6086 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3634 SdHoareTripleChecker+Valid, 8193 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:28,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3634 Valid, 8193 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:39:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132946 states. [2023-11-29 03:39:29,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132946 to 55277. [2023-11-29 03:39:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55277 states, 55276 states have (on average 1.4938671394456906) internal successors, (82575), 55276 states have internal predecessors, (82575), 0 states have call successors, (0), 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 03:39:29,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55277 states to 55277 states and 82575 transitions. [2023-11-29 03:39:29,616 INFO L78 Accepts]: Start accepts. Automaton has 55277 states and 82575 transitions. Word has length 356 [2023-11-29 03:39:29,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:29,616 INFO L495 AbstractCegarLoop]: Abstraction has 55277 states and 82575 transitions. [2023-11-29 03:39:29,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.5) internal successors, (356), 8 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:29,616 INFO L276 IsEmpty]: Start isEmpty. Operand 55277 states and 82575 transitions. [2023-11-29 03:39:29,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:39:29,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:29,629 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:29,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2023-11-29 03:39:29,629 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:29,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash 87088167, now seen corresponding path program 1 times [2023-11-29 03:39:29,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:29,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063795529] [2023-11-29 03:39:29,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:29,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:34,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:34,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063795529] [2023-11-29 03:39:34,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063795529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:34,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:34,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:39:34,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255673708] [2023-11-29 03:39:34,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:34,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:39:34,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:39:34,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:39:34,041 INFO L87 Difference]: Start difference. First operand 55277 states and 82575 transitions. Second operand has 11 states, 11 states have (on average 32.36363636363637) internal successors, (356), 10 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:35,102 INFO L93 Difference]: Finished difference Result 138713 states and 208198 transitions. [2023-11-29 03:39:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:39:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.36363636363637) internal successors, (356), 10 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:39:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:35,169 INFO L225 Difference]: With dead ends: 138713 [2023-11-29 03:39:35,169 INFO L226 Difference]: Without dead ends: 98856 [2023-11-29 03:39:35,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:39:35,185 INFO L413 NwaCegarLoop]: 1432 mSDtfsCounter, 4215 mSDsluCounter, 6330 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 7762 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:35,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 7762 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:39:35,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98856 states. [2023-11-29 03:39:35,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98856 to 59165. [2023-11-29 03:39:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59165 states, 59164 states have (on average 1.4957575552700966) internal successors, (88495), 59164 states have internal predecessors, (88495), 0 states have call successors, (0), 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 03:39:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59165 states to 59165 states and 88495 transitions. [2023-11-29 03:39:35,937 INFO L78 Accepts]: Start accepts. Automaton has 59165 states and 88495 transitions. Word has length 356 [2023-11-29 03:39:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:35,937 INFO L495 AbstractCegarLoop]: Abstraction has 59165 states and 88495 transitions. [2023-11-29 03:39:35,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.36363636363637) internal successors, (356), 10 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:35,937 INFO L276 IsEmpty]: Start isEmpty. Operand 59165 states and 88495 transitions. [2023-11-29 03:39:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:39:36,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:36,116 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:36,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2023-11-29 03:39:36,116 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:36,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1252036789, now seen corresponding path program 1 times [2023-11-29 03:39:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248758531] [2023-11-29 03:39:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:39:36,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:36,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248758531] [2023-11-29 03:39:36,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248758531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:36,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:36,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:39:36,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933694468] [2023-11-29 03:39:36,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:36,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:39:36,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:36,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:39:36,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:39:36,644 INFO L87 Difference]: Start difference. First operand 59165 states and 88495 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:37,198 INFO L93 Difference]: Finished difference Result 150263 states and 226193 transitions. [2023-11-29 03:39:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:39:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:39:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:37,284 INFO L225 Difference]: With dead ends: 150263 [2023-11-29 03:39:37,284 INFO L226 Difference]: Without dead ends: 110186 [2023-11-29 03:39:37,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:39:37,312 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 1339 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:37,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 3665 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:39:37,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110186 states. [2023-11-29 03:39:38,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110186 to 67629. [2023-11-29 03:39:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67629 states, 67628 states have (on average 1.5030904359141184) internal successors, (101651), 67628 states have internal predecessors, (101651), 0 states have call successors, (0), 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 03:39:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67629 states to 67629 states and 101651 transitions. [2023-11-29 03:39:38,179 INFO L78 Accepts]: Start accepts. Automaton has 67629 states and 101651 transitions. Word has length 356 [2023-11-29 03:39:38,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:38,180 INFO L495 AbstractCegarLoop]: Abstraction has 67629 states and 101651 transitions. [2023-11-29 03:39:38,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 67629 states and 101651 transitions. [2023-11-29 03:39:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:39:38,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:38,203 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:38,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2023-11-29 03:39:38,203 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:38,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash 438878361, now seen corresponding path program 1 times [2023-11-29 03:39:38,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:38,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211192355] [2023-11-29 03:39:38,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:38,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:39:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:43,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211192355] [2023-11-29 03:39:43,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211192355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:43,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:43,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:39:43,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571036654] [2023-11-29 03:39:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:43,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:39:43,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:43,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:39:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:39:43,650 INFO L87 Difference]: Start difference. First operand 67629 states and 101651 transitions. Second operand has 14 states, 14 states have (on average 25.428571428571427) internal successors, (356), 14 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:49,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:49,135 INFO L93 Difference]: Finished difference Result 220245 states and 332800 transitions. [2023-11-29 03:39:49,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 03:39:49,136 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 25.428571428571427) internal successors, (356), 14 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:39:49,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:49,237 INFO L225 Difference]: With dead ends: 220245 [2023-11-29 03:39:49,237 INFO L226 Difference]: Without dead ends: 177268 [2023-11-29 03:39:49,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=501, Invalid=1661, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 03:39:49,256 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 11492 mSDsluCounter, 11604 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11492 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:49,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11492 Valid, 12369 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 03:39:49,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177268 states. [2023-11-29 03:39:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177268 to 67650. [2023-11-29 03:39:50,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67650 states, 67649 states have (on average 1.503022956732546) internal successors, (101678), 67649 states have internal predecessors, (101678), 0 states have call successors, (0), 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 03:39:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67650 states to 67650 states and 101678 transitions. [2023-11-29 03:39:50,401 INFO L78 Accepts]: Start accepts. Automaton has 67650 states and 101678 transitions. Word has length 356 [2023-11-29 03:39:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:50,401 INFO L495 AbstractCegarLoop]: Abstraction has 67650 states and 101678 transitions. [2023-11-29 03:39:50,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.428571428571427) internal successors, (356), 14 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:39:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 67650 states and 101678 transitions. [2023-11-29 03:39:50,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:39:50,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:50,423 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:39:50,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2023-11-29 03:39:50,423 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:50,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash -86684871, now seen corresponding path program 1 times [2023-11-29 03:39:50,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:39:50,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500221932] [2023-11-29 03:39:50,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:39:50,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:39:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:39:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:39:55,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:39:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500221932] [2023-11-29 03:39:55,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500221932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:39:55,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:39:55,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-29 03:39:55,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287334397] [2023-11-29 03:39:55,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:39:55,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:39:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:39:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:39:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:39:55,828 INFO L87 Difference]: Start difference. First operand 67650 states and 101678 transitions. Second operand has 14 states, 14 states have (on average 25.428571428571427) internal successors, (356), 14 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:01,984 INFO L93 Difference]: Finished difference Result 254028 states and 383962 transitions. [2023-11-29 03:40:01,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 03:40:01,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 25.428571428571427) internal successors, (356), 14 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:40:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:02,118 INFO L225 Difference]: With dead ends: 254028 [2023-11-29 03:40:02,118 INFO L226 Difference]: Without dead ends: 210994 [2023-11-29 03:40:02,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=361, Invalid=1279, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 03:40:02,141 INFO L413 NwaCegarLoop]: 1456 mSDtfsCounter, 10039 mSDsluCounter, 14854 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10039 SdHoareTripleChecker+Valid, 16310 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:02,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10039 Valid, 16310 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 03:40:02,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210994 states. [2023-11-29 03:40:03,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210994 to 67504. [2023-11-29 03:40:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67504 states, 67503 states have (on average 1.5035628046160912) internal successors, (101495), 67503 states have internal predecessors, (101495), 0 states have call successors, (0), 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 03:40:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67504 states to 67504 states and 101495 transitions. [2023-11-29 03:40:03,747 INFO L78 Accepts]: Start accepts. Automaton has 67504 states and 101495 transitions. Word has length 356 [2023-11-29 03:40:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:03,747 INFO L495 AbstractCegarLoop]: Abstraction has 67504 states and 101495 transitions. [2023-11-29 03:40:03,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.428571428571427) internal successors, (356), 14 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 67504 states and 101495 transitions. [2023-11-29 03:40:03,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:40:03,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:03,767 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:03,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2023-11-29 03:40:03,767 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:03,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:03,768 INFO L85 PathProgramCache]: Analyzing trace with hash 639215577, now seen corresponding path program 1 times [2023-11-29 03:40:03,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:03,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289165636] [2023-11-29 03:40:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:03,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:07,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:07,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289165636] [2023-11-29 03:40:07,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289165636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:07,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:40:07,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 03:40:07,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891970340] [2023-11-29 03:40:07,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:07,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:40:07,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:07,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:40:07,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:40:07,656 INFO L87 Difference]: Start difference. First operand 67504 states and 101495 transitions. Second operand has 12 states, 12 states have (on average 29.666666666666668) internal successors, (356), 12 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:10,607 INFO L93 Difference]: Finished difference Result 323557 states and 488132 transitions. [2023-11-29 03:40:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 03:40:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.666666666666668) internal successors, (356), 12 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:40:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:10,790 INFO L225 Difference]: With dead ends: 323557 [2023-11-29 03:40:10,790 INFO L226 Difference]: Without dead ends: 280699 [2023-11-29 03:40:10,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 03:40:10,813 INFO L413 NwaCegarLoop]: 2001 mSDtfsCounter, 8590 mSDsluCounter, 14462 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8590 SdHoareTripleChecker+Valid, 16463 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:10,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8590 Valid, 16463 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:40:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280699 states. [2023-11-29 03:40:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280699 to 67614. [2023-11-29 03:40:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67614 states, 67613 states have (on average 1.503394317660805) internal successors, (101649), 67613 states have internal predecessors, (101649), 0 states have call successors, (0), 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 03:40:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67614 states to 67614 states and 101649 transitions. [2023-11-29 03:40:12,498 INFO L78 Accepts]: Start accepts. Automaton has 67614 states and 101649 transitions. Word has length 356 [2023-11-29 03:40:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:12,498 INFO L495 AbstractCegarLoop]: Abstraction has 67614 states and 101649 transitions. [2023-11-29 03:40:12,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.666666666666668) internal successors, (356), 12 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:12,499 INFO L276 IsEmpty]: Start isEmpty. Operand 67614 states and 101649 transitions. [2023-11-29 03:40:12,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:40:12,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:12,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:12,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2023-11-29 03:40:12,521 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:12,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:12,522 INFO L85 PathProgramCache]: Analyzing trace with hash -355478121, now seen corresponding path program 1 times [2023-11-29 03:40:12,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:12,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435224845] [2023-11-29 03:40:12,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:12,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:16,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:16,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435224845] [2023-11-29 03:40:16,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435224845] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:40:16,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851945851] [2023-11-29 03:40:16,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:16,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:40:16,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:40:16,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:40:16,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:40:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:17,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:40:17,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:40:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:17,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:40:17,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851945851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:17,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:40:17,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2023-11-29 03:40:17,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931998363] [2023-11-29 03:40:17,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:17,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:40:17,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:17,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:40:17,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:40:17,450 INFO L87 Difference]: Start difference. First operand 67614 states and 101649 transitions. Second operand has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:18,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:18,487 INFO L93 Difference]: Finished difference Result 153212 states and 230833 transitions. [2023-11-29 03:40:18,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:40:18,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:40:18,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:18,575 INFO L225 Difference]: With dead ends: 153212 [2023-11-29 03:40:18,575 INFO L226 Difference]: Without dead ends: 110273 [2023-11-29 03:40:18,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 354 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:40:18,608 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 2558 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:18,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 5183 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:40:18,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110273 states. [2023-11-29 03:40:19,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110273 to 67754. [2023-11-29 03:40:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67754 states, 67753 states have (on average 1.502708367157174) internal successors, (101813), 67753 states have internal predecessors, (101813), 0 states have call successors, (0), 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 03:40:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67754 states to 67754 states and 101813 transitions. [2023-11-29 03:40:19,534 INFO L78 Accepts]: Start accepts. Automaton has 67754 states and 101813 transitions. Word has length 356 [2023-11-29 03:40:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:19,534 INFO L495 AbstractCegarLoop]: Abstraction has 67754 states and 101813 transitions. [2023-11-29 03:40:19,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.857142857142854) internal successors, (356), 7 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:19,534 INFO L276 IsEmpty]: Start isEmpty. Operand 67754 states and 101813 transitions. [2023-11-29 03:40:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:40:19,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:19,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:19,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:40:19,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47cf9db-6281-4e97-a461-064b60cd5eda/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2023-11-29 03:40:19,758 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:19,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash -437452863, now seen corresponding path program 1 times [2023-11-29 03:40:19,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:19,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826460503] [2023-11-29 03:40:19,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:19,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:20,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:20,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826460503] [2023-11-29 03:40:20,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826460503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:20,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:40:20,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:40:20,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878175652] [2023-11-29 03:40:20,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:20,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:40:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:40:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:40:20,452 INFO L87 Difference]: Start difference. First operand 67754 states and 101813 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:21,106 INFO L93 Difference]: Finished difference Result 184102 states and 277175 transitions. [2023-11-29 03:40:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:40:21,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:40:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:21,207 INFO L225 Difference]: With dead ends: 184102 [2023-11-29 03:40:21,207 INFO L226 Difference]: Without dead ends: 124912 [2023-11-29 03:40:21,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:40:21,240 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 649 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:21,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 2682 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:40:21,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124912 states. [2023-11-29 03:40:22,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124912 to 68314. [2023-11-29 03:40:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68314 states, 68313 states have (on average 1.498587384538814) internal successors, (102373), 68313 states have internal predecessors, (102373), 0 states have call successors, (0), 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 03:40:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68314 states to 68314 states and 102373 transitions. [2023-11-29 03:40:22,342 INFO L78 Accepts]: Start accepts. Automaton has 68314 states and 102373 transitions. Word has length 356 [2023-11-29 03:40:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:22,343 INFO L495 AbstractCegarLoop]: Abstraction has 68314 states and 102373 transitions. [2023-11-29 03:40:22,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 68314 states and 102373 transitions. [2023-11-29 03:40:22,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 03:40:22,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:22,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:22,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2023-11-29 03:40:22,364 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:22,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:22,364 INFO L85 PathProgramCache]: Analyzing trace with hash 498849397, now seen corresponding path program 1 times [2023-11-29 03:40:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:22,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937213425] [2023-11-29 03:40:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:22,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:25,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:25,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937213425] [2023-11-29 03:40:25,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937213425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:25,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:40:25,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:40:25,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883456764] [2023-11-29 03:40:25,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:25,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:40:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:25,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:40:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:40:25,823 INFO L87 Difference]: Start difference. First operand 68314 states and 102373 transitions. Second operand has 12 states, 12 states have (on average 29.666666666666668) internal successors, (356), 11 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:27,148 INFO L93 Difference]: Finished difference Result 196088 states and 294285 transitions. [2023-11-29 03:40:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:40:27,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.666666666666668) internal successors, (356), 11 states have internal predecessors, (356), 0 states have call successors, (0), 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 356 [2023-11-29 03:40:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:27,265 INFO L225 Difference]: With dead ends: 196088 [2023-11-29 03:40:27,265 INFO L226 Difference]: Without dead ends: 149714 [2023-11-29 03:40:27,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:40:27,300 INFO L413 NwaCegarLoop]: 1373 mSDtfsCounter, 8575 mSDsluCounter, 10698 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8575 SdHoareTripleChecker+Valid, 12071 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:27,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8575 Valid, 12071 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:40:27,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149714 states. [2023-11-29 03:40:28,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149714 to 67714. [2023-11-29 03:40:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67714 states, 67713 states have (on average 1.4983976489005066) internal successors, (101461), 67713 states have internal predecessors, (101461), 0 states have call successors, (0), 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 03:40:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67714 states to 67714 states and 101461 transitions. [2023-11-29 03:40:28,384 INFO L78 Accepts]: Start accepts. Automaton has 67714 states and 101461 transitions. Word has length 356 [2023-11-29 03:40:28,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:28,385 INFO L495 AbstractCegarLoop]: Abstraction has 67714 states and 101461 transitions. [2023-11-29 03:40:28,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.666666666666668) internal successors, (356), 11 states have internal predecessors, (356), 0 states have call successors, (0), 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 03:40:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 67714 states and 101461 transitions. [2023-11-29 03:40:28,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:40:28,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:28,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:28,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2023-11-29 03:40:28,406 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:28,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:28,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1210093249, now seen corresponding path program 1 times [2023-11-29 03:40:28,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:28,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849335624] [2023-11-29 03:40:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:28,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849335624] [2023-11-29 03:40:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849335624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:40:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:40:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965752586] [2023-11-29 03:40:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:32,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:40:32,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:32,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:40:32,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:40:32,220 INFO L87 Difference]: Start difference. First operand 67714 states and 101461 transitions. Second operand has 10 states, 10 states have (on average 35.7) internal successors, (357), 9 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:40:33,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:33,811 INFO L93 Difference]: Finished difference Result 165165 states and 247731 transitions. [2023-11-29 03:40:33,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:40:33,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.7) internal successors, (357), 9 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:40:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:33,905 INFO L225 Difference]: With dead ends: 165165 [2023-11-29 03:40:33,905 INFO L226 Difference]: Without dead ends: 121531 [2023-11-29 03:40:33,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:40:33,939 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 5623 mSDsluCounter, 6226 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5623 SdHoareTripleChecker+Valid, 7467 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:33,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5623 Valid, 7467 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:40:34,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121531 states. [2023-11-29 03:40:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121531 to 67858. [2023-11-29 03:40:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67858 states, 67857 states have (on average 1.497339994399988) internal successors, (101605), 67857 states have internal predecessors, (101605), 0 states have call successors, (0), 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 03:40:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67858 states to 67858 states and 101605 transitions. [2023-11-29 03:40:34,967 INFO L78 Accepts]: Start accepts. Automaton has 67858 states and 101605 transitions. Word has length 357 [2023-11-29 03:40:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:34,968 INFO L495 AbstractCegarLoop]: Abstraction has 67858 states and 101605 transitions. [2023-11-29 03:40:34,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.7) internal successors, (357), 9 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:40:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 67858 states and 101605 transitions. [2023-11-29 03:40:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:40:34,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:34,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:34,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2023-11-29 03:40:34,991 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:34,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1144292033, now seen corresponding path program 1 times [2023-11-29 03:40:34,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:34,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180511862] [2023-11-29 03:40:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:34,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:40,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:40,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180511862] [2023-11-29 03:40:40,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180511862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:40,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:40:40,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-29 03:40:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205989643] [2023-11-29 03:40:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:40,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:40:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:40:40,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:40:40,183 INFO L87 Difference]: Start difference. First operand 67858 states and 101605 transitions. Second operand has 18 states, 18 states have (on average 19.833333333333332) internal successors, (357), 18 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:40:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:52,186 INFO L93 Difference]: Finished difference Result 429187 states and 643559 transitions. [2023-11-29 03:40:52,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2023-11-29 03:40:52,186 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 19.833333333333332) internal successors, (357), 18 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:40:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:52,569 INFO L225 Difference]: With dead ends: 429187 [2023-11-29 03:40:52,569 INFO L226 Difference]: Without dead ends: 385724 [2023-11-29 03:40:52,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8644 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=3884, Invalid=16996, Unknown=0, NotChecked=0, Total=20880 [2023-11-29 03:40:52,619 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 24422 mSDsluCounter, 29751 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24422 SdHoareTripleChecker+Valid, 31880 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:52,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24422 Valid, 31880 Invalid, 1216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 03:40:52,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385724 states. [2023-11-29 03:40:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385724 to 72578. [2023-11-29 03:40:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72578 states, 72577 states have (on average 1.498091681937804) internal successors, (108727), 72577 states have internal predecessors, (108727), 0 states have call successors, (0), 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 03:40:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72578 states to 72578 states and 108727 transitions. [2023-11-29 03:40:54,740 INFO L78 Accepts]: Start accepts. Automaton has 72578 states and 108727 transitions. Word has length 357 [2023-11-29 03:40:54,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:54,741 INFO L495 AbstractCegarLoop]: Abstraction has 72578 states and 108727 transitions. [2023-11-29 03:40:54,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 19.833333333333332) internal successors, (357), 18 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:40:54,741 INFO L276 IsEmpty]: Start isEmpty. Operand 72578 states and 108727 transitions. [2023-11-29 03:40:54,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:40:54,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:54,766 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:54,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2023-11-29 03:40:54,766 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:54,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:54,766 INFO L85 PathProgramCache]: Analyzing trace with hash 599419459, now seen corresponding path program 1 times [2023-11-29 03:40:54,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:40:54,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302050447] [2023-11-29 03:40:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:40:54,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:40:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:40:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:40:59,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:40:59,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302050447] [2023-11-29 03:40:59,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302050447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:40:59,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:40:59,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-29 03:40:59,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923531330] [2023-11-29 03:40:59,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:40:59,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:40:59,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:40:59,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:40:59,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:40:59,911 INFO L87 Difference]: Start difference. First operand 72578 states and 108727 transitions. Second operand has 20 states, 20 states have (on average 17.85) internal successors, (357), 19 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:02,548 INFO L93 Difference]: Finished difference Result 173199 states and 259846 transitions. [2023-11-29 03:41:02,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 03:41:02,549 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 17.85) internal successors, (357), 19 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:02,641 INFO L225 Difference]: With dead ends: 173199 [2023-11-29 03:41:02,641 INFO L226 Difference]: Without dead ends: 126816 [2023-11-29 03:41:02,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=391, Invalid=1331, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 03:41:02,674 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 6580 mSDsluCounter, 16177 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 17615 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:02,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6580 Valid, 17615 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:41:02,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126816 states. [2023-11-29 03:41:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126816 to 73384. [2023-11-29 03:41:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73384 states, 73383 states have (on average 1.4968453183979942) internal successors, (109843), 73383 states have internal predecessors, (109843), 0 states have call successors, (0), 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 03:41:03,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73384 states to 73384 states and 109843 transitions. [2023-11-29 03:41:03,773 INFO L78 Accepts]: Start accepts. Automaton has 73384 states and 109843 transitions. Word has length 357 [2023-11-29 03:41:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:03,774 INFO L495 AbstractCegarLoop]: Abstraction has 73384 states and 109843 transitions. [2023-11-29 03:41:03,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 17.85) internal successors, (357), 19 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 73384 states and 109843 transitions. [2023-11-29 03:41:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:03,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:03,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:03,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2023-11-29 03:41:03,799 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:03,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash 540506079, now seen corresponding path program 1 times [2023-11-29 03:41:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:03,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506638929] [2023-11-29 03:41:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:05,230 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:05,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:05,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506638929] [2023-11-29 03:41:05,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506638929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:05,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:05,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:41:05,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592229106] [2023-11-29 03:41:05,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:05,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:05,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:05,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:05,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:05,231 INFO L87 Difference]: Start difference. First operand 73384 states and 109843 transitions. Second operand has 7 states, 7 states have (on average 51.0) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:06,251 INFO L93 Difference]: Finished difference Result 181625 states and 272386 transitions. [2023-11-29 03:41:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:41:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:06,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:06,346 INFO L225 Difference]: With dead ends: 181625 [2023-11-29 03:41:06,346 INFO L226 Difference]: Without dead ends: 116829 [2023-11-29 03:41:06,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:41:06,482 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 3748 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3748 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:06,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3748 Valid, 3985 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116829 states. [2023-11-29 03:41:07,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116829 to 70998. [2023-11-29 03:41:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70998 states, 70997 states have (on average 1.4944997675958138) internal successors, (106105), 70997 states have internal predecessors, (106105), 0 states have call successors, (0), 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 03:41:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70998 states to 70998 states and 106105 transitions. [2023-11-29 03:41:07,545 INFO L78 Accepts]: Start accepts. Automaton has 70998 states and 106105 transitions. Word has length 357 [2023-11-29 03:41:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:07,545 INFO L495 AbstractCegarLoop]: Abstraction has 70998 states and 106105 transitions. [2023-11-29 03:41:07,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.0) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 70998 states and 106105 transitions. [2023-11-29 03:41:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:07,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:07,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:07,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2023-11-29 03:41:07,567 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:07,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1346844569, now seen corresponding path program 1 times [2023-11-29 03:41:07,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:07,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772084922] [2023-11-29 03:41:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:07,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:41:11,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:11,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772084922] [2023-11-29 03:41:11,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772084922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:11,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:11,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-29 03:41:11,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149275007] [2023-11-29 03:41:11,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:11,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:41:11,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:41:11,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:41:11,721 INFO L87 Difference]: Start difference. First operand 70998 states and 106105 transitions. Second operand has 17 states, 17 states have (on average 21.0) internal successors, (357), 17 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:18,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:18,295 INFO L93 Difference]: Finished difference Result 319380 states and 479766 transitions. [2023-11-29 03:41:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-29 03:41:18,296 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 21.0) internal successors, (357), 17 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:18,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:18,544 INFO L225 Difference]: With dead ends: 319380 [2023-11-29 03:41:18,544 INFO L226 Difference]: Without dead ends: 272997 [2023-11-29 03:41:18,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1038, Invalid=3252, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 03:41:18,580 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 15775 mSDsluCounter, 22057 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15775 SdHoareTripleChecker+Valid, 22990 SdHoareTripleChecker+Invalid, 961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:18,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15775 Valid, 22990 Invalid, 961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:41:18,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272997 states. [2023-11-29 03:41:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272997 to 70991. [2023-11-29 03:41:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70991 states, 70990 states have (on average 1.4944780955064094) internal successors, (106093), 70990 states have internal predecessors, (106093), 0 states have call successors, (0), 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 03:41:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70991 states to 70991 states and 106093 transitions. [2023-11-29 03:41:20,223 INFO L78 Accepts]: Start accepts. Automaton has 70991 states and 106093 transitions. Word has length 357 [2023-11-29 03:41:20,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:20,223 INFO L495 AbstractCegarLoop]: Abstraction has 70991 states and 106093 transitions. [2023-11-29 03:41:20,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 21.0) internal successors, (357), 17 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 70991 states and 106093 transitions. [2023-11-29 03:41:20,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:20,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:20,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:20,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2023-11-29 03:41:20,244 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:20,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1411881105, now seen corresponding path program 1 times [2023-11-29 03:41:20,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:20,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300766328] [2023-11-29 03:41:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:23,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:23,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300766328] [2023-11-29 03:41:23,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300766328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:23,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:23,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:41:23,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412883814] [2023-11-29 03:41:23,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:23,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:41:23,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:23,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:41:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:41:23,739 INFO L87 Difference]: Start difference. First operand 70991 states and 106093 transitions. Second operand has 11 states, 11 states have (on average 32.45454545454545) internal successors, (357), 10 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:25,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:25,532 INFO L93 Difference]: Finished difference Result 179733 states and 269186 transitions. [2023-11-29 03:41:25,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:41:25,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.45454545454545) internal successors, (357), 10 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:25,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:25,628 INFO L225 Difference]: With dead ends: 179733 [2023-11-29 03:41:25,628 INFO L226 Difference]: Without dead ends: 127642 [2023-11-29 03:41:25,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:41:25,661 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 5868 mSDsluCounter, 6566 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5868 SdHoareTripleChecker+Valid, 7707 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:25,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5868 Valid, 7707 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:41:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127642 states. [2023-11-29 03:41:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127642 to 73011. [2023-11-29 03:41:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73011 states, 73010 states have (on average 1.4924256951102588) internal successors, (108962), 73010 states have internal predecessors, (108962), 0 states have call successors, (0), 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 03:41:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73011 states to 73011 states and 108962 transitions. [2023-11-29 03:41:26,793 INFO L78 Accepts]: Start accepts. Automaton has 73011 states and 108962 transitions. Word has length 357 [2023-11-29 03:41:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:26,794 INFO L495 AbstractCegarLoop]: Abstraction has 73011 states and 108962 transitions. [2023-11-29 03:41:26,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.45454545454545) internal successors, (357), 10 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 73011 states and 108962 transitions. [2023-11-29 03:41:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:26,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:26,818 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:26,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2023-11-29 03:41:26,818 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:26,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:26,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1081674191, now seen corresponding path program 1 times [2023-11-29 03:41:26,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:26,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81847508] [2023-11-29 03:41:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:26,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81847508] [2023-11-29 03:41:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81847508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:28,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:28,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:41:28,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124148645] [2023-11-29 03:41:28,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:28,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:41:28,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:28,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:41:28,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:41:28,765 INFO L87 Difference]: Start difference. First operand 73011 states and 108962 transitions. Second operand has 10 states, 10 states have (on average 35.7) internal successors, (357), 10 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:30,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:30,930 INFO L93 Difference]: Finished difference Result 291220 states and 434943 transitions. [2023-11-29 03:41:30,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 03:41:30,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 35.7) internal successors, (357), 10 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:30,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:31,081 INFO L225 Difference]: With dead ends: 291220 [2023-11-29 03:41:31,081 INFO L226 Difference]: Without dead ends: 243778 [2023-11-29 03:41:31,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:41:31,101 INFO L413 NwaCegarLoop]: 2216 mSDtfsCounter, 4784 mSDsluCounter, 12761 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4784 SdHoareTripleChecker+Valid, 14977 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:31,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4784 Valid, 14977 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243778 states. [2023-11-29 03:41:32,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243778 to 74403. [2023-11-29 03:41:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74403 states, 74402 states have (on average 1.4907394962501008) internal successors, (110914), 74402 states have internal predecessors, (110914), 0 states have call successors, (0), 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 03:41:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74403 states to 74403 states and 110914 transitions. [2023-11-29 03:41:32,868 INFO L78 Accepts]: Start accepts. Automaton has 74403 states and 110914 transitions. Word has length 357 [2023-11-29 03:41:32,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:32,869 INFO L495 AbstractCegarLoop]: Abstraction has 74403 states and 110914 transitions. [2023-11-29 03:41:32,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.7) internal successors, (357), 10 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:32,869 INFO L276 IsEmpty]: Start isEmpty. Operand 74403 states and 110914 transitions. [2023-11-29 03:41:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:32,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:32,902 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:32,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2023-11-29 03:41:32,902 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:32,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:32,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2051564689, now seen corresponding path program 1 times [2023-11-29 03:41:32,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:32,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479297899] [2023-11-29 03:41:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:32,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:35,219 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:35,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:35,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479297899] [2023-11-29 03:41:35,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479297899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:35,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:35,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:41:35,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82933599] [2023-11-29 03:41:35,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:35,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:41:35,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:35,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:41:35,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:41:35,221 INFO L87 Difference]: Start difference. First operand 74403 states and 110914 transitions. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:36,330 INFO L93 Difference]: Finished difference Result 312286 states and 471078 transitions. [2023-11-29 03:41:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:41:36,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:36,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:36,626 INFO L225 Difference]: With dead ends: 312286 [2023-11-29 03:41:36,626 INFO L226 Difference]: Without dead ends: 264085 [2023-11-29 03:41:36,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:41:36,649 INFO L413 NwaCegarLoop]: 1138 mSDtfsCounter, 3029 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 4980 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:36,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3029 Valid, 4980 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:41:36,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264085 states. [2023-11-29 03:41:38,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264085 to 74043. [2023-11-29 03:41:38,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74043 states, 74042 states have (on average 1.4919370087247779) internal successors, (110466), 74042 states have internal predecessors, (110466), 0 states have call successors, (0), 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 03:41:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74043 states to 74043 states and 110466 transitions. [2023-11-29 03:41:38,187 INFO L78 Accepts]: Start accepts. Automaton has 74043 states and 110466 transitions. Word has length 357 [2023-11-29 03:41:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:38,187 INFO L495 AbstractCegarLoop]: Abstraction has 74043 states and 110466 transitions. [2023-11-29 03:41:38,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 74043 states and 110466 transitions. [2023-11-29 03:41:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:38,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:38,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:38,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2023-11-29 03:41:38,209 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:38,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash -350944621, now seen corresponding path program 1 times [2023-11-29 03:41:38,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:38,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237343208] [2023-11-29 03:41:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:38,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 03:41:42,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:42,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237343208] [2023-11-29 03:41:42,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237343208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:42,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:42,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:41:42,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335679807] [2023-11-29 03:41:42,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:42,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:41:42,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:41:42,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:41:42,297 INFO L87 Difference]: Start difference. First operand 74043 states and 110466 transitions. Second operand has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:45,589 INFO L93 Difference]: Finished difference Result 215146 states and 322728 transitions. [2023-11-29 03:41:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:41:45,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:45,716 INFO L225 Difference]: With dead ends: 215146 [2023-11-29 03:41:45,716 INFO L226 Difference]: Without dead ends: 167698 [2023-11-29 03:41:45,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:41:45,756 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 5786 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5786 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:45,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5786 Valid, 3484 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 03:41:45,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167698 states. [2023-11-29 03:41:46,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167698 to 74043. [2023-11-29 03:41:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74043 states, 74042 states have (on average 1.4919370087247779) internal successors, (110466), 74042 states have internal predecessors, (110466), 0 states have call successors, (0), 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 03:41:47,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74043 states to 74043 states and 110466 transitions. [2023-11-29 03:41:47,081 INFO L78 Accepts]: Start accepts. Automaton has 74043 states and 110466 transitions. Word has length 357 [2023-11-29 03:41:47,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:47,081 INFO L495 AbstractCegarLoop]: Abstraction has 74043 states and 110466 transitions. [2023-11-29 03:41:47,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:47,081 INFO L276 IsEmpty]: Start isEmpty. Operand 74043 states and 110466 transitions. [2023-11-29 03:41:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:47,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:47,106 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:47,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2023-11-29 03:41:47,106 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:47,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:47,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1969776273, now seen corresponding path program 1 times [2023-11-29 03:41:47,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:47,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791351322] [2023-11-29 03:41:47,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:47,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:50,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:50,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791351322] [2023-11-29 03:41:50,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791351322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:50,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:50,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:41:50,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146526896] [2023-11-29 03:41:50,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:50,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:41:50,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:50,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:41:50,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:41:50,601 INFO L87 Difference]: Start difference. First operand 74043 states and 110466 transitions. Second operand has 11 states, 11 states have (on average 32.45454545454545) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:53,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:53,337 INFO L93 Difference]: Finished difference Result 274550 states and 410193 transitions. [2023-11-29 03:41:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 03:41:53,338 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.45454545454545) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:53,490 INFO L225 Difference]: With dead ends: 274550 [2023-11-29 03:41:53,490 INFO L226 Difference]: Without dead ends: 227102 [2023-11-29 03:41:53,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:41:53,511 INFO L413 NwaCegarLoop]: 1770 mSDtfsCounter, 5007 mSDsluCounter, 11792 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 13562 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:53,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 13562 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:41:53,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227102 states. [2023-11-29 03:41:55,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227102 to 129538. [2023-11-29 03:41:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129538 states, 129537 states have (on average 1.488354678586041) internal successors, (192797), 129537 states have internal predecessors, (192797), 0 states have call successors, (0), 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 03:41:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129538 states to 129538 states and 192797 transitions. [2023-11-29 03:41:55,691 INFO L78 Accepts]: Start accepts. Automaton has 129538 states and 192797 transitions. Word has length 357 [2023-11-29 03:41:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:55,691 INFO L495 AbstractCegarLoop]: Abstraction has 129538 states and 192797 transitions. [2023-11-29 03:41:55,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.45454545454545) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:55,691 INFO L276 IsEmpty]: Start isEmpty. Operand 129538 states and 192797 transitions. [2023-11-29 03:41:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:41:55,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:55,728 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:55,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2023-11-29 03:41:55,728 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:55,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:55,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1054330001, now seen corresponding path program 1 times [2023-11-29 03:41:55,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:55,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123937211] [2023-11-29 03:41:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:55,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:41:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:58,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123937211] [2023-11-29 03:41:58,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123937211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:58,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:58,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:41:58,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070869449] [2023-11-29 03:41:58,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:58,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:41:58,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:58,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:41:58,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:41:58,465 INFO L87 Difference]: Start difference. First operand 129538 states and 192797 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:41:59,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:59,504 INFO L93 Difference]: Finished difference Result 230305 states and 343276 transitions. [2023-11-29 03:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:41:59,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:41:59,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:59,608 INFO L225 Difference]: With dead ends: 230305 [2023-11-29 03:41:59,608 INFO L226 Difference]: Without dead ends: 129615 [2023-11-29 03:41:59,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:41:59,765 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 381 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:59,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1977 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:41:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129615 states. [2023-11-29 03:42:01,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129615 to 129531. [2023-11-29 03:42:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129531 states, 129530 states have (on average 1.4882189454180499) internal successors, (192769), 129530 states have internal predecessors, (192769), 0 states have call successors, (0), 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 03:42:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129531 states to 129531 states and 192769 transitions. [2023-11-29 03:42:01,833 INFO L78 Accepts]: Start accepts. Automaton has 129531 states and 192769 transitions. Word has length 357 [2023-11-29 03:42:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:01,833 INFO L495 AbstractCegarLoop]: Abstraction has 129531 states and 192769 transitions. [2023-11-29 03:42:01,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:42:01,833 INFO L276 IsEmpty]: Start isEmpty. Operand 129531 states and 192769 transitions. [2023-11-29 03:42:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:42:01,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:01,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:01,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2023-11-29 03:42:01,861 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:42:01,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1554457457, now seen corresponding path program 1 times [2023-11-29 03:42:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920524178] [2023-11-29 03:42:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:04,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920524178] [2023-11-29 03:42:04,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920524178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:04,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:04,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:42:04,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775574345] [2023-11-29 03:42:04,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:04,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:42:04,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:04,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:42:04,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:42:04,911 INFO L87 Difference]: Start difference. First operand 129531 states and 192769 transitions. Second operand has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:42:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:07,182 INFO L93 Difference]: Finished difference Result 315006 states and 470287 transitions. [2023-11-29 03:42:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:42:07,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:42:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:07,366 INFO L225 Difference]: With dead ends: 315006 [2023-11-29 03:42:07,366 INFO L226 Difference]: Without dead ends: 214323 [2023-11-29 03:42:07,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:42:07,429 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 3222 mSDsluCounter, 4592 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 6198 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:07,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 6198 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:42:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214323 states. [2023-11-29 03:42:09,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214323 to 128903. [2023-11-29 03:42:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128903 states, 128902 states have (on average 1.488727870785558) internal successors, (191900), 128902 states have internal predecessors, (191900), 0 states have call successors, (0), 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 03:42:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128903 states to 128903 states and 191900 transitions. [2023-11-29 03:42:09,872 INFO L78 Accepts]: Start accepts. Automaton has 128903 states and 191900 transitions. Word has length 357 [2023-11-29 03:42:09,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:09,873 INFO L495 AbstractCegarLoop]: Abstraction has 128903 states and 191900 transitions. [2023-11-29 03:42:09,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.625) internal successors, (357), 8 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:42:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 128903 states and 191900 transitions. [2023-11-29 03:42:09,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 03:42:09,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:09,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:09,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2023-11-29 03:42:09,904 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:42:09,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:09,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1987723063, now seen corresponding path program 1 times [2023-11-29 03:42:09,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:09,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239647787] [2023-11-29 03:42:09,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:09,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:14,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:14,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239647787] [2023-11-29 03:42:14,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239647787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:14,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:14,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:42:14,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831531299] [2023-11-29 03:42:14,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:14,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:42:14,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:14,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:42:14,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:42:14,069 INFO L87 Difference]: Start difference. First operand 128903 states and 191900 transitions. Second operand has 12 states, 12 states have (on average 29.75) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:42:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:20,131 INFO L93 Difference]: Finished difference Result 614004 states and 916664 transitions. [2023-11-29 03:42:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:42:20,132 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.75) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2023-11-29 03:42:20,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:20,829 INFO L225 Difference]: With dead ends: 614004 [2023-11-29 03:42:20,830 INFO L226 Difference]: Without dead ends: 513572 [2023-11-29 03:42:20,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:42:20,924 INFO L413 NwaCegarLoop]: 1528 mSDtfsCounter, 7574 mSDsluCounter, 11961 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7574 SdHoareTripleChecker+Valid, 13489 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:20,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7574 Valid, 13489 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 03:42:21,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513572 states. [2023-11-29 03:42:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513572 to 129077. [2023-11-29 03:42:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129077 states, 129076 states have (on average 1.488859276705197) internal successors, (192176), 129076 states have internal predecessors, (192176), 0 states have call successors, (0), 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 03:42:24,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129077 states to 129077 states and 192176 transitions. [2023-11-29 03:42:24,565 INFO L78 Accepts]: Start accepts. Automaton has 129077 states and 192176 transitions. Word has length 357 [2023-11-29 03:42:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:24,565 INFO L495 AbstractCegarLoop]: Abstraction has 129077 states and 192176 transitions. [2023-11-29 03:42:24,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.75) internal successors, (357), 11 states have internal predecessors, (357), 0 states have call successors, (0), 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 03:42:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 129077 states and 192176 transitions. [2023-11-29 03:42:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-11-29 03:42:24,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:24,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:24,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2023-11-29 03:42:24,595 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:42:24,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:24,595 INFO L85 PathProgramCache]: Analyzing trace with hash 11189105, now seen corresponding path program 1 times [2023-11-29 03:42:24,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:24,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968669821] [2023-11-29 03:42:24,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:24,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 03:42:27,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:27,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968669821] [2023-11-29 03:42:27,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968669821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:27,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:27,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:42:27,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825371004] [2023-11-29 03:42:27,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:27,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:27,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:27,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:27,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:27,881 INFO L87 Difference]: Start difference. First operand 129077 states and 192176 transitions. Second operand has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 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 03:42:28,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:28,842 INFO L93 Difference]: Finished difference Result 229328 states and 341926 transitions. [2023-11-29 03:42:28,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:28,843 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 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 358 [2023-11-29 03:42:28,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:28,936 INFO L225 Difference]: With dead ends: 229328 [2023-11-29 03:42:28,936 INFO L226 Difference]: Without dead ends: 129077 [2023-11-29 03:42:28,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:42:28,983 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 1939 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:28,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 879 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:42:29,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129077 states. [2023-11-29 03:42:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129077 to 129077. [2023-11-29 03:42:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129077 states, 129076 states have (on average 1.4885571291332238) internal successors, (192137), 129076 states have internal predecessors, (192137), 0 states have call successors, (0), 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 03:42:30,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129077 states to 129077 states and 192137 transitions. [2023-11-29 03:42:30,940 INFO L78 Accepts]: Start accepts. Automaton has 129077 states and 192137 transitions. Word has length 358 [2023-11-29 03:42:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:30,941 INFO L495 AbstractCegarLoop]: Abstraction has 129077 states and 192137 transitions. [2023-11-29 03:42:30,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 0 states have call successors, (0), 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 03:42:30,941 INFO L276 IsEmpty]: Start isEmpty. Operand 129077 states and 192137 transitions. [2023-11-29 03:42:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-11-29 03:42:30,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:30,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:30,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2023-11-29 03:42:30,972 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:42:30,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:30,973 INFO L85 PathProgramCache]: Analyzing trace with hash -999928145, now seen corresponding path program 1 times [2023-11-29 03:42:30,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:30,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820833156] [2023-11-29 03:42:30,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:30,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:34,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:34,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820833156] [2023-11-29 03:42:34,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820833156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:34,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:34,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:42:34,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175664581] [2023-11-29 03:42:34,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:34,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:42:34,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:42:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:42:34,556 INFO L87 Difference]: Start difference. First operand 129077 states and 192137 transitions. Second operand has 7 states, 7 states have (on average 51.142857142857146) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)