./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/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_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/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 32bit --witnessprinter.graph.data.programhash 36682755a8fd6d5761d4aa48745e539f37b082d91c2b7f5a4981e2bf074e7e62 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:21:15,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:21:16,021 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:21:16,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:21:16,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:21:16,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:21:16,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:21:16,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:21:16,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:21:16,054 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:21:16,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:21:16,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:21:16,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:21:16,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:21:16,057 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:21:16,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:21:16,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:21:16,058 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:21:16,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:21:16,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:21:16,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:21:16,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:21:16,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:21:16,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:21:16,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:21:16,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:21:16,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:21:16,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:21:16,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:21:16,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:21:16,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:21:16,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:21:16,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:21:16,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:21:16,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:21:16,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:21:16,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:21:16,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:21:16,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:21:16,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:21:16,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:21:16,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:21:16,068 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_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36682755a8fd6d5761d4aa48745e539f37b082d91c2b7f5a4981e2bf074e7e62 [2023-11-29 05:21:16,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:21:16,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:21:16,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:21:16,309 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:21:16,309 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:21:16,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/eca-rers2012/Problem17_label18.c [2023-11-29 05:21:19,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:21:19,363 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:21:19,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/sv-benchmarks/c/eca-rers2012/Problem17_label18.c [2023-11-29 05:21:19,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/data/52d57913c/7da073c1364245df8e88d589f8d7f382/FLAG693cbea34 [2023-11-29 05:21:19,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/data/52d57913c/7da073c1364245df8e88d589f8d7f382 [2023-11-29 05:21:19,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:21:19,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:21:19,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:21:19,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:21:19,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:21:19,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:21:19" (1/1) ... [2023-11-29 05:21:19,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd03307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:19, skipping insertion in model container [2023-11-29 05:21:19,404 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:21:19" (1/1) ... [2023-11-29 05:21:19,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:21:19,694 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_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/sv-benchmarks/c/eca-rers2012/Problem17_label18.c[8129,8142] [2023-11-29 05:21:20,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:21:20,199 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:21:20,226 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_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/sv-benchmarks/c/eca-rers2012/Problem17_label18.c[8129,8142] [2023-11-29 05:21:20,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:21:20,571 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:21:20,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20 WrapperNode [2023-11-29 05:21:20,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:21:20,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:21:20,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:21:20,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:21:20,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:20,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:20,823 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2023-11-29 05:21:20,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:21:20,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:21:20,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:21:20,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:21:20,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:20,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:20,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,006 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:21:21,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:21:21,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:21:21,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:21:21,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:21:21,292 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (1/1) ... [2023-11-29 05:21:21,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:21:21,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:21:21,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:21:21,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:21:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:21:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:21:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:21:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:21:21,439 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:21:21,441 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:21:24,997 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:21:25,047 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:21:25,047 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:21:25,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:21:25 BoogieIcfgContainer [2023-11-29 05:21:25,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:21:25,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:21:25,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:21:25,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:21:25,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:21:19" (1/3) ... [2023-11-29 05:21:25,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd0bd00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:21:25, skipping insertion in model container [2023-11-29 05:21:25,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:21:20" (2/3) ... [2023-11-29 05:21:25,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd0bd00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:21:25, skipping insertion in model container [2023-11-29 05:21:25,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:21:25" (3/3) ... [2023-11-29 05:21:25,057 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label18.c [2023-11-29 05:21:25,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:21:25,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:21:25,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:21:25,135 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;@6f086c2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:21:25,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:21:25,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:25,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 05:21:25,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:25,150 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 05:21:25,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:25,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash -306260511, now seen corresponding path program 1 times [2023-11-29 05:21:25,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:25,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412442456] [2023-11-29 05:21:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:25,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:25,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:25,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412442456] [2023-11-29 05:21:25,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412442456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:25,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:25,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:21:25,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790791401] [2023-11-29 05:21:25,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:25,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:21:25,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:25,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:21:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:21:25,350 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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 05:21:25,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:25,415 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-11-29 05:21:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:21:25,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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 05:21:25,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:25,434 INFO L225 Difference]: With dead ends: 1055 [2023-11-29 05:21:25,434 INFO L226 Difference]: Without dead ends: 526 [2023-11-29 05:21:25,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:21:25,443 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:25,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:21:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-11-29 05:21:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-11-29 05:21:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-11-29 05:21:25,511 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 54 [2023-11-29 05:21:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:25,512 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-11-29 05:21:25,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 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 05:21:25,512 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-11-29 05:21:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 05:21:25,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:25,514 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 05:21:25,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:21:25,515 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:25,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:25,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1422142025, now seen corresponding path program 1 times [2023-11-29 05:21:25,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:25,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753902794] [2023-11-29 05:21:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:25,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:25,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:25,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:25,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753902794] [2023-11-29 05:21:25,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753902794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:25,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:25,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:21:25,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229483055] [2023-11-29 05:21:25,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:25,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:25,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:25,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:25,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:25,713 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 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 05:21:28,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:28,518 INFO L93 Difference]: Finished difference Result 1522 states and 2728 transitions. [2023-11-29 05:21:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:28,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 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 05:21:28,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:28,524 INFO L225 Difference]: With dead ends: 1522 [2023-11-29 05:21:28,524 INFO L226 Difference]: Without dead ends: 997 [2023-11-29 05:21:28,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:28,526 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 456 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:28,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 239 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 05:21:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-11-29 05:21:28,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 981. [2023-11-29 05:21:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.7081632653061225) internal successors, (1674), 980 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1674 transitions. [2023-11-29 05:21:28,562 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1674 transitions. Word has length 54 [2023-11-29 05:21:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:28,562 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1674 transitions. [2023-11-29 05:21:28,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 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 05:21:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1674 transitions. [2023-11-29 05:21:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 05:21:28,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:28,568 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:28,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:21:28,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:28,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash -897308707, now seen corresponding path program 1 times [2023-11-29 05:21:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:28,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083305578] [2023-11-29 05:21:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:28,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:28,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:28,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083305578] [2023-11-29 05:21:28,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083305578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:28,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:28,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:21:28,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768050005] [2023-11-29 05:21:28,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:28,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:28,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:28,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:28,804 INFO L87 Difference]: Start difference. First operand 981 states and 1674 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:31,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:31,674 INFO L93 Difference]: Finished difference Result 2840 states and 4880 transitions. [2023-11-29 05:21:31,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:31,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2023-11-29 05:21:31,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:31,684 INFO L225 Difference]: With dead ends: 2840 [2023-11-29 05:21:31,684 INFO L226 Difference]: Without dead ends: 1860 [2023-11-29 05:21:31,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:31,687 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:31,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 494 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 05:21:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2023-11-29 05:21:31,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1856. [2023-11-29 05:21:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 1855 states have (on average 1.4549865229110512) internal successors, (2699), 1855 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2699 transitions. [2023-11-29 05:21:31,733 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2699 transitions. Word has length 119 [2023-11-29 05:21:31,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:31,734 INFO L495 AbstractCegarLoop]: Abstraction has 1856 states and 2699 transitions. [2023-11-29 05:21:31,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2699 transitions. [2023-11-29 05:21:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-29 05:21:31,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:31,740 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, 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] [2023-11-29 05:21:31,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:21:31,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:31,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:31,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1353255496, now seen corresponding path program 1 times [2023-11-29 05:21:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:31,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004154650] [2023-11-29 05:21:31,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:31,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:32,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:32,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004154650] [2023-11-29 05:21:32,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004154650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:32,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:32,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:21:32,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422021223] [2023-11-29 05:21:32,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:32,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:32,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:32,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:32,184 INFO L87 Difference]: Start difference. First operand 1856 states and 2699 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:35,035 INFO L93 Difference]: Finished difference Result 4590 states and 6639 transitions. [2023-11-29 05:21:35,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:35,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2023-11-29 05:21:35,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:35,051 INFO L225 Difference]: With dead ends: 4590 [2023-11-29 05:21:35,051 INFO L226 Difference]: Without dead ends: 2735 [2023-11-29 05:21:35,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:35,055 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 352 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:35,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 535 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 05:21:35,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2023-11-29 05:21:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2715. [2023-11-29 05:21:35,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2714 states have (on average 1.3909358879882092) internal successors, (3775), 2714 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:35,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3775 transitions. [2023-11-29 05:21:35,115 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3775 transitions. Word has length 159 [2023-11-29 05:21:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:35,116 INFO L495 AbstractCegarLoop]: Abstraction has 2715 states and 3775 transitions. [2023-11-29 05:21:35,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:35,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3775 transitions. [2023-11-29 05:21:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 05:21:35,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:35,120 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, 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] [2023-11-29 05:21:35,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:21:35,120 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:35,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2014327913, now seen corresponding path program 1 times [2023-11-29 05:21:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:35,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069807705] [2023-11-29 05:21:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:35,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:35,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:35,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069807705] [2023-11-29 05:21:35,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069807705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:35,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:35,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:21:35,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473564710] [2023-11-29 05:21:35,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:35,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:35,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:35,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:35,341 INFO L87 Difference]: Start difference. First operand 2715 states and 3775 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:37,433 INFO L93 Difference]: Finished difference Result 6708 states and 9428 transitions. [2023-11-29 05:21:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:37,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2023-11-29 05:21:37,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:37,448 INFO L225 Difference]: With dead ends: 6708 [2023-11-29 05:21:37,448 INFO L226 Difference]: Without dead ends: 3994 [2023-11-29 05:21:37,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:37,452 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 347 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:37,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 05:21:37,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2023-11-29 05:21:37,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3141. [2023-11-29 05:21:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 1.2745222929936306) internal successors, (4002), 3140 states have internal predecessors, (4002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4002 transitions. [2023-11-29 05:21:37,503 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 4002 transitions. Word has length 165 [2023-11-29 05:21:37,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:37,503 INFO L495 AbstractCegarLoop]: Abstraction has 3141 states and 4002 transitions. [2023-11-29 05:21:37,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 4002 transitions. [2023-11-29 05:21:37,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-29 05:21:37,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:37,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:21:37,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:21:37,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:37,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1973780188, now seen corresponding path program 1 times [2023-11-29 05:21:37,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:37,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398587082] [2023-11-29 05:21:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:37,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:37,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:37,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398587082] [2023-11-29 05:21:37,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398587082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:37,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:37,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:21:37,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111464040] [2023-11-29 05:21:37,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:37,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:21:37,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:37,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:21:37,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:21:37,883 INFO L87 Difference]: Start difference. First operand 3141 states and 4002 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:40,814 INFO L93 Difference]: Finished difference Result 8006 states and 10509 transitions. [2023-11-29 05:21:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:21:40,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2023-11-29 05:21:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:40,840 INFO L225 Difference]: With dead ends: 8006 [2023-11-29 05:21:40,841 INFO L226 Difference]: Without dead ends: 4866 [2023-11-29 05:21:40,845 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 05:21:40,846 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 1655 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:40,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 839 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 05:21:40,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2023-11-29 05:21:40,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 4851. [2023-11-29 05:21:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 4850 states have (on average 1.26659793814433) internal successors, (6143), 4850 states have internal predecessors, (6143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 6143 transitions. [2023-11-29 05:21:40,972 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 6143 transitions. Word has length 202 [2023-11-29 05:21:40,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:40,973 INFO L495 AbstractCegarLoop]: Abstraction has 4851 states and 6143 transitions. [2023-11-29 05:21:40,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 6143 transitions. [2023-11-29 05:21:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 05:21:40,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:40,978 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:21:40,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:21:40,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:40,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:40,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1987792459, now seen corresponding path program 1 times [2023-11-29 05:21:40,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:40,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25753816] [2023-11-29 05:21:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:40,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 05:21:41,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:41,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25753816] [2023-11-29 05:21:41,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25753816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:41,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:41,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:21:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755649728] [2023-11-29 05:21:41,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:41,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:41,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:41,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:41,180 INFO L87 Difference]: Start difference. First operand 4851 states and 6143 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:43,750 INFO L93 Difference]: Finished difference Result 12248 states and 15824 transitions. [2023-11-29 05:21:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:43,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 208 [2023-11-29 05:21:43,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:43,776 INFO L225 Difference]: With dead ends: 12248 [2023-11-29 05:21:43,776 INFO L226 Difference]: Without dead ends: 7398 [2023-11-29 05:21:43,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:43,781 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 392 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:43,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 543 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 05:21:43,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7398 states. [2023-11-29 05:21:43,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7398 to 4825. [2023-11-29 05:21:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 4824 states have (on average 1.265339966832504) internal successors, (6104), 4824 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 6104 transitions. [2023-11-29 05:21:43,860 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 6104 transitions. Word has length 208 [2023-11-29 05:21:43,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:43,860 INFO L495 AbstractCegarLoop]: Abstraction has 4825 states and 6104 transitions. [2023-11-29 05:21:43,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:43,861 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 6104 transitions. [2023-11-29 05:21:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-29 05:21:43,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:43,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:21:43,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:21:43,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:43,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1276928441, now seen corresponding path program 1 times [2023-11-29 05:21:43,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:43,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764584049] [2023-11-29 05:21:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 75 proven. 30 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 05:21:44,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:44,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764584049] [2023-11-29 05:21:44,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764584049] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:21:44,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158303996] [2023-11-29 05:21:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:44,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:21:44,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:21:44,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:21:44,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:21:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:44,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:21:44,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:21:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 05:21:44,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:21:44,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158303996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:44,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:21:44,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-29 05:21:44,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837373621] [2023-11-29 05:21:44,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:44,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:44,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:44,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:44,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:21:44,474 INFO L87 Difference]: Start difference. First operand 4825 states and 6104 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:47,135 INFO L93 Difference]: Finished difference Result 12203 states and 15756 transitions. [2023-11-29 05:21:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:47,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 221 [2023-11-29 05:21:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:47,162 INFO L225 Difference]: With dead ends: 12203 [2023-11-29 05:21:47,163 INFO L226 Difference]: Without dead ends: 7379 [2023-11-29 05:21:47,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:21:47,168 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 416 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:47,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 509 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 05:21:47,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7379 states. [2023-11-29 05:21:47,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7379 to 6524. [2023-11-29 05:21:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6524 states, 6523 states have (on average 1.2665951249425111) internal successors, (8262), 6523 states have internal predecessors, (8262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6524 states to 6524 states and 8262 transitions. [2023-11-29 05:21:47,259 INFO L78 Accepts]: Start accepts. Automaton has 6524 states and 8262 transitions. Word has length 221 [2023-11-29 05:21:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:47,259 INFO L495 AbstractCegarLoop]: Abstraction has 6524 states and 8262 transitions. [2023-11-29 05:21:47,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6524 states and 8262 transitions. [2023-11-29 05:21:47,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-29 05:21:47,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:47,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:21:47,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:21:47,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:21:47,464 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:47,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:47,465 INFO L85 PathProgramCache]: Analyzing trace with hash 346331899, now seen corresponding path program 1 times [2023-11-29 05:21:47,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:47,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110662472] [2023-11-29 05:21:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:47,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:47,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:47,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110662472] [2023-11-29 05:21:47,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110662472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:47,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:47,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:21:47,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254647653] [2023-11-29 05:21:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:47,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:47,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:47,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:47,790 INFO L87 Difference]: Start difference. First operand 6524 states and 8262 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:50,535 INFO L93 Difference]: Finished difference Result 18179 states and 22850 transitions. [2023-11-29 05:21:50,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:50,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2023-11-29 05:21:50,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:50,554 INFO L225 Difference]: With dead ends: 18179 [2023-11-29 05:21:50,555 INFO L226 Difference]: Without dead ends: 10804 [2023-11-29 05:21:50,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:50,563 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 371 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:50,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 947 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 05:21:50,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2023-11-29 05:21:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 10796. [2023-11-29 05:21:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10796 states, 10795 states have (on average 1.1779527559055119) internal successors, (12716), 10795 states have internal predecessors, (12716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10796 states to 10796 states and 12716 transitions. [2023-11-29 05:21:50,769 INFO L78 Accepts]: Start accepts. Automaton has 10796 states and 12716 transitions. Word has length 270 [2023-11-29 05:21:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:50,770 INFO L495 AbstractCegarLoop]: Abstraction has 10796 states and 12716 transitions. [2023-11-29 05:21:50,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:50,771 INFO L276 IsEmpty]: Start isEmpty. Operand 10796 states and 12716 transitions. [2023-11-29 05:21:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 05:21:50,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:50,778 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:21:50,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:21:50,779 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:50,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash 215540933, now seen corresponding path program 1 times [2023-11-29 05:21:50,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:50,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817618907] [2023-11-29 05:21:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:50,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:51,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:51,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817618907] [2023-11-29 05:21:51,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817618907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:21:51,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085377779] [2023-11-29 05:21:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:51,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:21:51,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:21:51,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:21:51,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:21:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:51,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:21:51,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:21:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:51,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:21:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:21:52,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085377779] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:21:52,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:21:52,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2023-11-29 05:21:52,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821679493] [2023-11-29 05:21:52,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:52,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:21:52,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:52,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:21:52,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:21:52,098 INFO L87 Difference]: Start difference. First operand 10796 states and 12716 transitions. Second operand has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:55,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:55,797 INFO L93 Difference]: Finished difference Result 33971 states and 40194 transitions. [2023-11-29 05:21:55,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:21:55,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 274 [2023-11-29 05:21:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:55,823 INFO L225 Difference]: With dead ends: 33971 [2023-11-29 05:21:55,823 INFO L226 Difference]: Without dead ends: 22311 [2023-11-29 05:21:55,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:21:55,834 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 829 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 2259 mSolverCounterSat, 715 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 2259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:55,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 155 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 2259 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 05:21:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22311 states. [2023-11-29 05:21:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22311 to 21034. [2023-11-29 05:21:56,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21034 states, 21033 states have (on average 1.154756810726002) internal successors, (24288), 21033 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21034 states to 21034 states and 24288 transitions. [2023-11-29 05:21:56,086 INFO L78 Accepts]: Start accepts. Automaton has 21034 states and 24288 transitions. Word has length 274 [2023-11-29 05:21:56,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:56,087 INFO L495 AbstractCegarLoop]: Abstraction has 21034 states and 24288 transitions. [2023-11-29 05:21:56,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.5) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 21034 states and 24288 transitions. [2023-11-29 05:21:56,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-11-29 05:21:56,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:56,094 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:21:56,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:21:56,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 05:21:56,296 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:56,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:56,296 INFO L85 PathProgramCache]: Analyzing trace with hash 211498138, now seen corresponding path program 1 times [2023-11-29 05:21:56,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:56,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487265032] [2023-11-29 05:21:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:56,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 05:21:56,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:56,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487265032] [2023-11-29 05:21:56,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487265032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:56,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:56,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:21:56,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101662352] [2023-11-29 05:21:56,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:56,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:56,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:56,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:56,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:56,446 INFO L87 Difference]: Start difference. First operand 21034 states and 24288 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:21:58,428 INFO L93 Difference]: Finished difference Result 45469 states and 52616 transitions. [2023-11-29 05:21:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:21:58,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 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 291 [2023-11-29 05:21:58,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:21:58,451 INFO L225 Difference]: With dead ends: 45469 [2023-11-29 05:21:58,451 INFO L226 Difference]: Without dead ends: 24010 [2023-11-29 05:21:58,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:58,465 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 385 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:21:58,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 831 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 05:21:58,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24010 states. [2023-11-29 05:21:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24010 to 24010. [2023-11-29 05:21:58,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24010 states, 24009 states have (on average 1.1354492065475448) internal successors, (27261), 24009 states have internal predecessors, (27261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:58,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24010 states to 24010 states and 27261 transitions. [2023-11-29 05:21:58,687 INFO L78 Accepts]: Start accepts. Automaton has 24010 states and 27261 transitions. Word has length 291 [2023-11-29 05:21:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:21:58,688 INFO L495 AbstractCegarLoop]: Abstraction has 24010 states and 27261 transitions. [2023-11-29 05:21:58,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:21:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand 24010 states and 27261 transitions. [2023-11-29 05:21:58,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-11-29 05:21:58,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:21:58,692 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:21:58,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 05:21:58,693 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:21:58,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:21:58,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1722340376, now seen corresponding path program 1 times [2023-11-29 05:21:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:21:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911639515] [2023-11-29 05:21:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:21:58,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:21:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:21:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 05:21:59,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:21:59,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911639515] [2023-11-29 05:21:59,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911639515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:21:59,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:21:59,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:21:59,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085952965] [2023-11-29 05:21:59,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:21:59,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:21:59,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:21:59,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:21:59,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:21:59,013 INFO L87 Difference]: Start difference. First operand 24010 states and 27261 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:01,302 INFO L93 Difference]: Finished difference Result 57401 states and 65478 transitions. [2023-11-29 05:22:01,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:01,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 05:22:01,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:01,341 INFO L225 Difference]: With dead ends: 57401 [2023-11-29 05:22:01,341 INFO L226 Difference]: Without dead ends: 33392 [2023-11-29 05:22:01,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:01,357 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 323 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:01,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 851 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:22:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33392 states. [2023-11-29 05:22:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33392 to 31670. [2023-11-29 05:22:01,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31670 states, 31669 states have (on average 1.1294325681265591) internal successors, (35768), 31669 states have internal predecessors, (35768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31670 states to 31670 states and 35768 transitions. [2023-11-29 05:22:01,708 INFO L78 Accepts]: Start accepts. Automaton has 31670 states and 35768 transitions. Word has length 348 [2023-11-29 05:22:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:01,708 INFO L495 AbstractCegarLoop]: Abstraction has 31670 states and 35768 transitions. [2023-11-29 05:22:01,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 31670 states and 35768 transitions. [2023-11-29 05:22:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-11-29 05:22:01,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:01,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:22:01,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 05:22:01,713 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:01,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:01,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1417412890, now seen corresponding path program 1 times [2023-11-29 05:22:01,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:01,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951725698] [2023-11-29 05:22:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:01,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 266 proven. 78 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-29 05:22:02,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:02,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951725698] [2023-11-29 05:22:02,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951725698] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:22:02,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102546856] [2023-11-29 05:22:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:02,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:22:02,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:22:02,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:22:02,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:22:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:02,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:22:02,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:22:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 266 proven. 78 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-29 05:22:02,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:22:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-11-29 05:22:02,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102546856] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:22:02,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:22:02,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-11-29 05:22:02,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103255317] [2023-11-29 05:22:02,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:02,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:22:02,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:02,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:22:02,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:22:02,726 INFO L87 Difference]: Start difference. First operand 31670 states and 35768 transitions. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:06,097 INFO L93 Difference]: Finished difference Result 76140 states and 86283 transitions. [2023-11-29 05:22:06,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:22:06,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 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 05:22:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:06,131 INFO L225 Difference]: With dead ends: 76140 [2023-11-29 05:22:06,131 INFO L226 Difference]: Without dead ends: 44044 [2023-11-29 05:22:06,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:22:06,210 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 842 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:06,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 202 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 05:22:06,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44044 states. [2023-11-29 05:22:06,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44044 to 42341. [2023-11-29 05:22:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42341 states, 42340 states have (on average 1.1391591875295228) internal successors, (48232), 42340 states have internal predecessors, (48232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42341 states to 42341 states and 48232 transitions. [2023-11-29 05:22:06,546 INFO L78 Accepts]: Start accepts. Automaton has 42341 states and 48232 transitions. Word has length 349 [2023-11-29 05:22:06,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:06,547 INFO L495 AbstractCegarLoop]: Abstraction has 42341 states and 48232 transitions. [2023-11-29 05:22:06,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:06,547 INFO L276 IsEmpty]: Start isEmpty. Operand 42341 states and 48232 transitions. [2023-11-29 05:22:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-11-29 05:22:06,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:06,551 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:22:06,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:22:06,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 05:22:06,751 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:06,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1683485725, now seen corresponding path program 1 times [2023-11-29 05:22:06,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:06,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846297371] [2023-11-29 05:22:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:06,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-11-29 05:22:07,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846297371] [2023-11-29 05:22:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846297371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:07,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190990569] [2023-11-29 05:22:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:07,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:07,245 INFO L87 Difference]: Start difference. First operand 42341 states and 48232 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:09,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:09,474 INFO L93 Difference]: Finished difference Result 100000 states and 113525 transitions. [2023-11-29 05:22:09,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:09,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 366 [2023-11-29 05:22:09,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:09,606 INFO L225 Difference]: With dead ends: 100000 [2023-11-29 05:22:09,606 INFO L226 Difference]: Without dead ends: 57228 [2023-11-29 05:22:09,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:09,621 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 420 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:09,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 421 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 05:22:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57228 states. [2023-11-29 05:22:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57228 to 53819. [2023-11-29 05:22:10,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53819 states, 53818 states have (on average 1.1234717009179085) internal successors, (60463), 53818 states have internal predecessors, (60463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53819 states to 53819 states and 60463 transitions. [2023-11-29 05:22:10,244 INFO L78 Accepts]: Start accepts. Automaton has 53819 states and 60463 transitions. Word has length 366 [2023-11-29 05:22:10,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:10,245 INFO L495 AbstractCegarLoop]: Abstraction has 53819 states and 60463 transitions. [2023-11-29 05:22:10,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:10,245 INFO L276 IsEmpty]: Start isEmpty. Operand 53819 states and 60463 transitions. [2023-11-29 05:22:10,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2023-11-29 05:22:10,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:10,251 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:22:10,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 05:22:10,252 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:10,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 273519951, now seen corresponding path program 1 times [2023-11-29 05:22:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:10,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898928769] [2023-11-29 05:22:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:10,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-11-29 05:22:10,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898928769] [2023-11-29 05:22:10,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898928769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:10,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:10,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:10,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755023027] [2023-11-29 05:22:10,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:10,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:10,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:10,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:10,566 INFO L87 Difference]: Start difference. First operand 53819 states and 60463 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:12,827 INFO L93 Difference]: Finished difference Result 118269 states and 132533 transitions. [2023-11-29 05:22:12,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:12,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 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 436 [2023-11-29 05:22:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:12,904 INFO L225 Difference]: With dead ends: 118269 [2023-11-29 05:22:12,904 INFO L226 Difference]: Without dead ends: 64025 [2023-11-29 05:22:12,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:12,936 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 423 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:12,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 347 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 05:22:12,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64025 states. [2023-11-29 05:22:13,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64025 to 53812. [2023-11-29 05:22:13,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53812 states, 53811 states have (on average 1.117429521844976) internal successors, (60130), 53811 states have internal predecessors, (60130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53812 states to 53812 states and 60130 transitions. [2023-11-29 05:22:13,658 INFO L78 Accepts]: Start accepts. Automaton has 53812 states and 60130 transitions. Word has length 436 [2023-11-29 05:22:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:13,658 INFO L495 AbstractCegarLoop]: Abstraction has 53812 states and 60130 transitions. [2023-11-29 05:22:13,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 53812 states and 60130 transitions. [2023-11-29 05:22:13,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-11-29 05:22:13,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:13,666 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2023-11-29 05:22:13,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:22:13,667 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:13,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1416542020, now seen corresponding path program 1 times [2023-11-29 05:22:13,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:13,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150911071] [2023-11-29 05:22:13,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:13,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-11-29 05:22:14,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:14,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150911071] [2023-11-29 05:22:14,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150911071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:14,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:14,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980568144] [2023-11-29 05:22:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:14,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:14,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:14,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:14,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:14,102 INFO L87 Difference]: Start difference. First operand 53812 states and 60130 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:16,612 INFO L93 Difference]: Finished difference Result 121710 states and 135668 transitions. [2023-11-29 05:22:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:16,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 450 [2023-11-29 05:22:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:16,673 INFO L225 Difference]: With dead ends: 121710 [2023-11-29 05:22:16,674 INFO L226 Difference]: Without dead ends: 67473 [2023-11-29 05:22:16,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:16,698 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 436 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:16,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 315 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 05:22:16,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67473 states. [2023-11-29 05:22:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67473 to 54235. [2023-11-29 05:22:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54235 states, 54234 states have (on average 1.1162001696352841) internal successors, (60536), 54234 states have internal predecessors, (60536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:17,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54235 states to 54235 states and 60536 transitions. [2023-11-29 05:22:17,468 INFO L78 Accepts]: Start accepts. Automaton has 54235 states and 60536 transitions. Word has length 450 [2023-11-29 05:22:17,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:17,469 INFO L495 AbstractCegarLoop]: Abstraction has 54235 states and 60536 transitions. [2023-11-29 05:22:17,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:17,469 INFO L276 IsEmpty]: Start isEmpty. Operand 54235 states and 60536 transitions. [2023-11-29 05:22:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-29 05:22:17,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:17,482 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2023-11-29 05:22:17,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 05:22:17,482 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:17,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:17,482 INFO L85 PathProgramCache]: Analyzing trace with hash 507258262, now seen corresponding path program 1 times [2023-11-29 05:22:17,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:17,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192486191] [2023-11-29 05:22:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:17,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-11-29 05:22:17,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:17,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192486191] [2023-11-29 05:22:17,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192486191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:17,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:17,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:17,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277951354] [2023-11-29 05:22:17,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:17,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:17,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:17,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:17,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:17,879 INFO L87 Difference]: Start difference. First operand 54235 states and 60536 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:20,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:20,380 INFO L93 Difference]: Finished difference Result 122090 states and 135864 transitions. [2023-11-29 05:22:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:20,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 478 [2023-11-29 05:22:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:20,455 INFO L225 Difference]: With dead ends: 122090 [2023-11-29 05:22:20,455 INFO L226 Difference]: Without dead ends: 67431 [2023-11-29 05:22:20,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:20,606 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 487 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:20,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 256 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:22:20,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67431 states. [2023-11-29 05:22:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67431 to 53348. [2023-11-29 05:22:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53348 states, 53347 states have (on average 1.10491686505333) internal successors, (58944), 53347 states have internal predecessors, (58944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:21,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53348 states to 53348 states and 58944 transitions. [2023-11-29 05:22:21,135 INFO L78 Accepts]: Start accepts. Automaton has 53348 states and 58944 transitions. Word has length 478 [2023-11-29 05:22:21,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:21,135 INFO L495 AbstractCegarLoop]: Abstraction has 53348 states and 58944 transitions. [2023-11-29 05:22:21,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 53348 states and 58944 transitions. [2023-11-29 05:22:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-11-29 05:22:21,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:21,146 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2023-11-29 05:22:21,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 05:22:21,147 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:21,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:21,147 INFO L85 PathProgramCache]: Analyzing trace with hash 238400471, now seen corresponding path program 1 times [2023-11-29 05:22:21,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:21,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355135048] [2023-11-29 05:22:21,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:21,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-29 05:22:21,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:21,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355135048] [2023-11-29 05:22:21,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355135048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:21,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:21,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:22:21,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462714813] [2023-11-29 05:22:21,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:21,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:22:21,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:21,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:22:21,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:22:21,804 INFO L87 Difference]: Start difference. First operand 53348 states and 58944 transitions. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:25,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:25,734 INFO L93 Difference]: Finished difference Result 132696 states and 146071 transitions. [2023-11-29 05:22:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:22:25,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 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 498 [2023-11-29 05:22:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:25,827 INFO L225 Difference]: With dead ends: 132696 [2023-11-29 05:22:25,828 INFO L226 Difference]: Without dead ends: 75519 [2023-11-29 05:22:25,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:22:25,862 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 733 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 2967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:25,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 220 Invalid, 2967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 05:22:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75519 states. [2023-11-29 05:22:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75519 to 69530. [2023-11-29 05:22:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69530 states, 69529 states have (on average 1.1017561017704842) internal successors, (76604), 69529 states have internal predecessors, (76604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69530 states to 69530 states and 76604 transitions. [2023-11-29 05:22:26,683 INFO L78 Accepts]: Start accepts. Automaton has 69530 states and 76604 transitions. Word has length 498 [2023-11-29 05:22:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:26,683 INFO L495 AbstractCegarLoop]: Abstraction has 69530 states and 76604 transitions. [2023-11-29 05:22:26,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 69530 states and 76604 transitions. [2023-11-29 05:22:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2023-11-29 05:22:26,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:26,696 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:22:26,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 05:22:26,696 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:26,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:26,696 INFO L85 PathProgramCache]: Analyzing trace with hash -601892137, now seen corresponding path program 1 times [2023-11-29 05:22:26,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:26,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203684187] [2023-11-29 05:22:26,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:26,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 579 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2023-11-29 05:22:26,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:26,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203684187] [2023-11-29 05:22:26,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203684187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:26,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:26,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:22:26,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020586947] [2023-11-29 05:22:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:26,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:26,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:26,952 INFO L87 Difference]: Start difference. First operand 69530 states and 76604 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:28,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:28,411 INFO L93 Difference]: Finished difference Result 136919 states and 150557 transitions. [2023-11-29 05:22:28,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:28,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 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 514 [2023-11-29 05:22:28,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:28,474 INFO L225 Difference]: With dead ends: 136919 [2023-11-29 05:22:28,474 INFO L226 Difference]: Without dead ends: 67390 [2023-11-29 05:22:28,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:28,503 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 623 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:28,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 99 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 05:22:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67390 states. [2023-11-29 05:22:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67390 to 67379. [2023-11-29 05:22:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67379 states, 67378 states have (on average 1.097123690225296) internal successors, (73922), 67378 states have internal predecessors, (73922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67379 states to 67379 states and 73922 transitions. [2023-11-29 05:22:29,280 INFO L78 Accepts]: Start accepts. Automaton has 67379 states and 73922 transitions. Word has length 514 [2023-11-29 05:22:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 67379 states and 73922 transitions. [2023-11-29 05:22:29,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 67379 states and 73922 transitions. [2023-11-29 05:22:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2023-11-29 05:22:29,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:29,294 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:22:29,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 05:22:29,294 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:29,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1968232921, now seen corresponding path program 1 times [2023-11-29 05:22:29,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:29,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788472075] [2023-11-29 05:22:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:29,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2023-11-29 05:22:30,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:30,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788472075] [2023-11-29 05:22:30,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788472075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:30,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:30,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:22:30,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364284647] [2023-11-29 05:22:30,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:30,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:22:30,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:30,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:22:30,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:22:30,134 INFO L87 Difference]: Start difference. First operand 67379 states and 73922 transitions. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:33,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:33,189 INFO L93 Difference]: Finished difference Result 146668 states and 160871 transitions. [2023-11-29 05:22:33,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:22:33,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 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 514 [2023-11-29 05:22:33,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:33,267 INFO L225 Difference]: With dead ends: 146668 [2023-11-29 05:22:33,267 INFO L226 Difference]: Without dead ends: 78015 [2023-11-29 05:22:33,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:22:33,298 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 814 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:33,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 779 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 05:22:33,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78015 states. [2023-11-29 05:22:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78015 to 66500. [2023-11-29 05:22:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66500 states, 66499 states have (on average 1.0954300064662625) internal successors, (72845), 66499 states have internal predecessors, (72845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:34,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66500 states to 66500 states and 72845 transitions. [2023-11-29 05:22:34,141 INFO L78 Accepts]: Start accepts. Automaton has 66500 states and 72845 transitions. Word has length 514 [2023-11-29 05:22:34,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:34,142 INFO L495 AbstractCegarLoop]: Abstraction has 66500 states and 72845 transitions. [2023-11-29 05:22:34,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:34,142 INFO L276 IsEmpty]: Start isEmpty. Operand 66500 states and 72845 transitions. [2023-11-29 05:22:34,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-11-29 05:22:34,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:34,155 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:22:34,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 05:22:34,155 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:34,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:34,155 INFO L85 PathProgramCache]: Analyzing trace with hash -703664009, now seen corresponding path program 1 times [2023-11-29 05:22:34,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:34,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616366278] [2023-11-29 05:22:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 463 proven. 53 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2023-11-29 05:22:35,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:35,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616366278] [2023-11-29 05:22:35,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616366278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:22:35,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973495597] [2023-11-29 05:22:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:35,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:22:35,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:22:35,184 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:22:35,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:22:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:35,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:22:35,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:22:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 479 proven. 82 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 05:22:35,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:22:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 479 proven. 82 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 05:22:37,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973495597] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:22:37,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:22:37,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2023-11-29 05:22:37,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388784012] [2023-11-29 05:22:37,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:22:37,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:22:37,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:37,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:22:37,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:22:37,090 INFO L87 Difference]: Start difference. First operand 66500 states and 72845 transitions. Second operand has 9 states, 9 states have (on average 102.11111111111111) internal successors, (919), 9 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:53,336 INFO L93 Difference]: Finished difference Result 173006 states and 188479 transitions. [2023-11-29 05:22:53,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 05:22:53,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 102.11111111111111) internal successors, (919), 9 states have internal predecessors, (919), 0 states have call successors, (0), 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 543 [2023-11-29 05:22:53,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:53,433 INFO L225 Difference]: With dead ends: 173006 [2023-11-29 05:22:53,433 INFO L226 Difference]: Without dead ends: 103098 [2023-11-29 05:22:53,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1121 GetRequests, 1098 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2023-11-29 05:22:53,452 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 10621 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 13184 mSolverCounterSat, 2762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10621 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 15946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2762 IncrementalHoareTripleChecker+Valid, 13184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:53,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10621 Valid, 373 Invalid, 15946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2762 Valid, 13184 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-11-29 05:22:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103098 states. [2023-11-29 05:22:54,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103098 to 80938. [2023-11-29 05:22:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80938 states, 80937 states have (on average 1.0774553047431954) internal successors, (87206), 80937 states have internal predecessors, (87206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:54,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80938 states to 80938 states and 87206 transitions. [2023-11-29 05:22:54,307 INFO L78 Accepts]: Start accepts. Automaton has 80938 states and 87206 transitions. Word has length 543 [2023-11-29 05:22:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:54,307 INFO L495 AbstractCegarLoop]: Abstraction has 80938 states and 87206 transitions. [2023-11-29 05:22:54,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 102.11111111111111) internal successors, (919), 9 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:54,308 INFO L276 IsEmpty]: Start isEmpty. Operand 80938 states and 87206 transitions. [2023-11-29 05:22:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2023-11-29 05:22:54,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:54,318 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:22:54,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:22:54,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 05:22:54,518 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:54,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1628248843, now seen corresponding path program 1 times [2023-11-29 05:22:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:54,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058613206] [2023-11-29 05:22:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:54,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-29 05:22:55,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:55,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058613206] [2023-11-29 05:22:55,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058613206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:55,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:55,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:55,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79275893] [2023-11-29 05:22:55,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:55,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:55,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:55,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:55,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:55,698 INFO L87 Difference]: Start difference. First operand 80938 states and 87206 transitions. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:22:57,376 INFO L93 Difference]: Finished difference Result 161449 states and 173973 transitions. [2023-11-29 05:22:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:22:57,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 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 621 [2023-11-29 05:22:57,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:22:57,461 INFO L225 Difference]: With dead ends: 161449 [2023-11-29 05:22:57,461 INFO L226 Difference]: Without dead ends: 80512 [2023-11-29 05:22:57,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:57,488 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 562 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:22:57,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 530 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 05:22:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80512 states. [2023-11-29 05:22:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80512 to 80512. [2023-11-29 05:22:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80512 states, 80511 states have (on average 1.0775297785395785) internal successors, (86753), 80511 states have internal predecessors, (86753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80512 states to 80512 states and 86753 transitions. [2023-11-29 05:22:58,302 INFO L78 Accepts]: Start accepts. Automaton has 80512 states and 86753 transitions. Word has length 621 [2023-11-29 05:22:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:22:58,303 INFO L495 AbstractCegarLoop]: Abstraction has 80512 states and 86753 transitions. [2023-11-29 05:22:58,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:22:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 80512 states and 86753 transitions. [2023-11-29 05:22:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2023-11-29 05:22:58,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:22:58,316 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:22:58,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 05:22:58,316 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:22:58,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:22:58,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1325244354, now seen corresponding path program 1 times [2023-11-29 05:22:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:22:58,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204528338] [2023-11-29 05:22:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:22:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:22:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:22:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2023-11-29 05:22:58,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:22:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204528338] [2023-11-29 05:22:58,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204528338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:22:58,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:22:58,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:22:58,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028118281] [2023-11-29 05:22:58,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:22:58,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:22:58,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:22:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:22:58,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:22:58,574 INFO L87 Difference]: Start difference. First operand 80512 states and 86753 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:00,774 INFO L93 Difference]: Finished difference Result 161878 states and 174416 transitions. [2023-11-29 05:23:00,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:23:00,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 640 [2023-11-29 05:23:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:00,851 INFO L225 Difference]: With dead ends: 161878 [2023-11-29 05:23:00,851 INFO L226 Difference]: Without dead ends: 81367 [2023-11-29 05:23:00,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:00,885 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 498 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:00,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 635 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 05:23:00,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81367 states. [2023-11-29 05:23:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81367 to 80938. [2023-11-29 05:23:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80938 states, 80937 states have (on average 1.0711788180930848) internal successors, (86698), 80937 states have internal predecessors, (86698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80938 states to 80938 states and 86698 transitions. [2023-11-29 05:23:01,850 INFO L78 Accepts]: Start accepts. Automaton has 80938 states and 86698 transitions. Word has length 640 [2023-11-29 05:23:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:01,850 INFO L495 AbstractCegarLoop]: Abstraction has 80938 states and 86698 transitions. [2023-11-29 05:23:01,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:01,850 INFO L276 IsEmpty]: Start isEmpty. Operand 80938 states and 86698 transitions. [2023-11-29 05:23:01,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2023-11-29 05:23:01,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:01,866 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:23:01,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 05:23:01,866 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:01,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 196924537, now seen corresponding path program 1 times [2023-11-29 05:23:01,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:01,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996846952] [2023-11-29 05:23:01,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:01,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-29 05:23:02,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:02,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996846952] [2023-11-29 05:23:02,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996846952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:02,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:02,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:23:02,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99534623] [2023-11-29 05:23:02,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:02,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:23:02,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:02,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:23:02,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:02,931 INFO L87 Difference]: Start difference. First operand 80938 states and 86698 transitions. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:05,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:05,445 INFO L93 Difference]: Finished difference Result 168697 states and 180621 transitions. [2023-11-29 05:23:05,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:23:05,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 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 702 [2023-11-29 05:23:05,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:05,526 INFO L225 Difference]: With dead ends: 168697 [2023-11-29 05:23:05,526 INFO L226 Difference]: Without dead ends: 87334 [2023-11-29 05:23:05,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:05,558 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 412 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:05,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 255 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 05:23:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87334 states. [2023-11-29 05:23:06,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87334 to 86044. [2023-11-29 05:23:06,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86044 states, 86043 states have (on average 1.0702090815057588) internal successors, (92084), 86043 states have internal predecessors, (92084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86044 states to 86044 states and 92084 transitions. [2023-11-29 05:23:06,584 INFO L78 Accepts]: Start accepts. Automaton has 86044 states and 92084 transitions. Word has length 702 [2023-11-29 05:23:06,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:06,585 INFO L495 AbstractCegarLoop]: Abstraction has 86044 states and 92084 transitions. [2023-11-29 05:23:06,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:06,585 INFO L276 IsEmpty]: Start isEmpty. Operand 86044 states and 92084 transitions. [2023-11-29 05:23:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2023-11-29 05:23:06,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:06,599 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:23:06,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 05:23:06,600 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:06,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:06,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1557252694, now seen corresponding path program 1 times [2023-11-29 05:23:06,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:06,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789362607] [2023-11-29 05:23:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:06,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 1007 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-29 05:23:07,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789362607] [2023-11-29 05:23:07,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789362607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:07,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:07,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:23:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281993282] [2023-11-29 05:23:07,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:07,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:23:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:23:07,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:07,200 INFO L87 Difference]: Start difference. First operand 86044 states and 92084 transitions. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:10,583 INFO L93 Difference]: Finished difference Result 193802 states and 207023 transitions. [2023-11-29 05:23:10,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:23:10,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 703 [2023-11-29 05:23:10,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:10,683 INFO L225 Difference]: With dead ends: 193802 [2023-11-29 05:23:10,683 INFO L226 Difference]: Without dead ends: 106909 [2023-11-29 05:23:10,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:10,702 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 622 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:10,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 249 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 05:23:10,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106909 states. [2023-11-29 05:23:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106909 to 98822. [2023-11-29 05:23:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98822 states, 98821 states have (on average 1.0678094736948625) internal successors, (105522), 98821 states have internal predecessors, (105522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:11,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98822 states to 98822 states and 105522 transitions. [2023-11-29 05:23:11,813 INFO L78 Accepts]: Start accepts. Automaton has 98822 states and 105522 transitions. Word has length 703 [2023-11-29 05:23:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:11,814 INFO L495 AbstractCegarLoop]: Abstraction has 98822 states and 105522 transitions. [2023-11-29 05:23:11,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 98822 states and 105522 transitions. [2023-11-29 05:23:11,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2023-11-29 05:23:11,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:11,831 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:23:11,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 05:23:11,832 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:11,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:11,832 INFO L85 PathProgramCache]: Analyzing trace with hash 175014708, now seen corresponding path program 1 times [2023-11-29 05:23:11,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:11,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993367951] [2023-11-29 05:23:11,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:11,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1302 backedges. 933 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2023-11-29 05:23:12,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:12,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993367951] [2023-11-29 05:23:12,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993367951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:12,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:12,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:23:12,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375431312] [2023-11-29 05:23:12,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:12,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:23:12,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:23:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:12,589 INFO L87 Difference]: Start difference. First operand 98822 states and 105522 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:15,088 INFO L93 Difference]: Finished difference Result 210435 states and 224853 transitions. [2023-11-29 05:23:15,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:23:15,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 731 [2023-11-29 05:23:15,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:15,202 INFO L225 Difference]: With dead ends: 210435 [2023-11-29 05:23:15,202 INFO L226 Difference]: Without dead ends: 111189 [2023-11-29 05:23:15,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:15,236 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 428 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:15,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 199 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 05:23:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111189 states. [2023-11-29 05:23:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111189 to 100096. [2023-11-29 05:23:16,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100096 states, 100095 states have (on average 1.0691942654478246) internal successors, (107021), 100095 states have internal predecessors, (107021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100096 states to 100096 states and 107021 transitions. [2023-11-29 05:23:16,588 INFO L78 Accepts]: Start accepts. Automaton has 100096 states and 107021 transitions. Word has length 731 [2023-11-29 05:23:16,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:16,589 INFO L495 AbstractCegarLoop]: Abstraction has 100096 states and 107021 transitions. [2023-11-29 05:23:16,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:16,589 INFO L276 IsEmpty]: Start isEmpty. Operand 100096 states and 107021 transitions. [2023-11-29 05:23:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2023-11-29 05:23:16,604 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:16,605 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:23:16,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 05:23:16,605 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:16,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:16,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1229942994, now seen corresponding path program 1 times [2023-11-29 05:23:16,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:16,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183219808] [2023-11-29 05:23:16,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:16,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 861 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-29 05:23:17,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:17,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183219808] [2023-11-29 05:23:17,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183219808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:17,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:17,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:23:17,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213379621] [2023-11-29 05:23:17,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:17,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:23:17,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:17,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:23:17,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:17,479 INFO L87 Difference]: Start difference. First operand 100096 states and 107021 transitions. Second operand has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:21,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:21,038 INFO L93 Difference]: Finished difference Result 212951 states and 227559 transitions. [2023-11-29 05:23:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:23:21,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 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 733 [2023-11-29 05:23:21,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:21,150 INFO L225 Difference]: With dead ends: 212951 [2023-11-29 05:23:21,150 INFO L226 Difference]: Without dead ends: 112856 [2023-11-29 05:23:21,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:21,190 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 578 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:21,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 211 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 05:23:21,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112856 states. [2023-11-29 05:23:22,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112856 to 96259. [2023-11-29 05:23:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96259 states, 96258 states have (on average 1.0687838932867917) internal successors, (102879), 96258 states have internal predecessors, (102879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96259 states to 96259 states and 102879 transitions. [2023-11-29 05:23:22,448 INFO L78 Accepts]: Start accepts. Automaton has 96259 states and 102879 transitions. Word has length 733 [2023-11-29 05:23:22,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:22,449 INFO L495 AbstractCegarLoop]: Abstraction has 96259 states and 102879 transitions. [2023-11-29 05:23:22,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 96259 states and 102879 transitions. [2023-11-29 05:23:22,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2023-11-29 05:23:22,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:22,468 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:23:22,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 05:23:22,468 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:22,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash -154747646, now seen corresponding path program 1 times [2023-11-29 05:23:22,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:22,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052801982] [2023-11-29 05:23:22,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:22,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:23,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1492 backedges. 1187 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2023-11-29 05:23:23,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:23,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052801982] [2023-11-29 05:23:23,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052801982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:23,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:23,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:23:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378008546] [2023-11-29 05:23:23,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:23,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:23:23,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:23,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:23:23,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:23:23,257 INFO L87 Difference]: Start difference. First operand 96259 states and 102879 transitions. Second operand has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:27,922 INFO L93 Difference]: Finished difference Result 205701 states and 219729 transitions. [2023-11-29 05:23:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:23:27,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 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 795 [2023-11-29 05:23:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:28,028 INFO L225 Difference]: With dead ends: 205701 [2023-11-29 05:23:28,028 INFO L226 Difference]: Without dead ends: 109016 [2023-11-29 05:23:28,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:23:28,049 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 1090 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 3183 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 3775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 3183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:28,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 176 Invalid, 3775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 3183 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 05:23:28,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109016 states. [2023-11-29 05:23:28,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109016 to 97946. [2023-11-29 05:23:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97946 states, 97945 states have (on average 1.0588391444177856) internal successors, (103708), 97945 states have internal predecessors, (103708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97946 states to 97946 states and 103708 transitions. [2023-11-29 05:23:29,148 INFO L78 Accepts]: Start accepts. Automaton has 97946 states and 103708 transitions. Word has length 795 [2023-11-29 05:23:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:29,149 INFO L495 AbstractCegarLoop]: Abstraction has 97946 states and 103708 transitions. [2023-11-29 05:23:29,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 97946 states and 103708 transitions. [2023-11-29 05:23:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2023-11-29 05:23:29,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:29,382 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:23:29,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 05:23:29,382 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:29,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:29,383 INFO L85 PathProgramCache]: Analyzing trace with hash 901226669, now seen corresponding path program 1 times [2023-11-29 05:23:29,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:29,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706448748] [2023-11-29 05:23:29,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:29,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1687 backedges. 1107 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-11-29 05:23:30,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:30,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706448748] [2023-11-29 05:23:30,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706448748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:30,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:30,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:23:30,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640597921] [2023-11-29 05:23:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:30,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:23:30,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:30,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:23:30,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:30,446 INFO L87 Difference]: Start difference. First operand 97946 states and 103708 transitions. Second operand has 4 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:33,931 INFO L93 Difference]: Finished difference Result 209943 states and 222134 transitions. [2023-11-29 05:23:33,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:23:33,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 882 [2023-11-29 05:23:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:34,043 INFO L225 Difference]: With dead ends: 209943 [2023-11-29 05:23:34,043 INFO L226 Difference]: Without dead ends: 112423 [2023-11-29 05:23:34,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:34,083 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 597 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:34,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 287 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 05:23:34,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112423 states. [2023-11-29 05:23:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112423 to 106885. [2023-11-29 05:23:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106885 states, 106884 states have (on average 1.0587178623554507) internal successors, (113160), 106884 states have internal predecessors, (113160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106885 states to 106885 states and 113160 transitions. [2023-11-29 05:23:35,450 INFO L78 Accepts]: Start accepts. Automaton has 106885 states and 113160 transitions. Word has length 882 [2023-11-29 05:23:35,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:35,450 INFO L495 AbstractCegarLoop]: Abstraction has 106885 states and 113160 transitions. [2023-11-29 05:23:35,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 106885 states and 113160 transitions. [2023-11-29 05:23:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2023-11-29 05:23:35,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:35,484 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:23:35,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 05:23:35,484 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:35,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:35,485 INFO L85 PathProgramCache]: Analyzing trace with hash -423946545, now seen corresponding path program 1 times [2023-11-29 05:23:35,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:35,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547973380] [2023-11-29 05:23:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:35,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1601 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-11-29 05:23:36,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547973380] [2023-11-29 05:23:36,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547973380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:36,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:36,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:23:36,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680269495] [2023-11-29 05:23:36,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:36,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:23:36,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:23:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:23:36,508 INFO L87 Difference]: Start difference. First operand 106885 states and 113160 transitions. Second operand has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:40,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:40,431 INFO L93 Difference]: Finished difference Result 224844 states and 237975 transitions. [2023-11-29 05:23:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:23:40,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 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 984 [2023-11-29 05:23:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:40,543 INFO L225 Difference]: With dead ends: 224844 [2023-11-29 05:23:40,543 INFO L226 Difference]: Without dead ends: 118385 [2023-11-29 05:23:40,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:23:40,586 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 1468 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 2605 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 2605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:40,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 139 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 2605 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 05:23:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118385 states. [2023-11-29 05:23:41,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118385 to 106885. [2023-11-29 05:23:41,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106885 states, 106884 states have (on average 1.0586804386063395) internal successors, (113156), 106884 states have internal predecessors, (113156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106885 states to 106885 states and 113156 transitions. [2023-11-29 05:23:41,955 INFO L78 Accepts]: Start accepts. Automaton has 106885 states and 113156 transitions. Word has length 984 [2023-11-29 05:23:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:41,956 INFO L495 AbstractCegarLoop]: Abstraction has 106885 states and 113156 transitions. [2023-11-29 05:23:41,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 106885 states and 113156 transitions. [2023-11-29 05:23:41,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2023-11-29 05:23:41,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:41,989 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:23:41,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 05:23:41,990 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:41,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:41,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1523672577, now seen corresponding path program 1 times [2023-11-29 05:23:41,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:41,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729560291] [2023-11-29 05:23:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:41,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1962 backedges. 985 proven. 0 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2023-11-29 05:23:43,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:43,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729560291] [2023-11-29 05:23:43,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729560291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:43,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:43,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:23:43,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180055078] [2023-11-29 05:23:43,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:43,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:23:43,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:43,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:23:43,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:43,345 INFO L87 Difference]: Start difference. First operand 106885 states and 113156 transitions. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:46,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:46,964 INFO L93 Difference]: Finished difference Result 228672 states and 241751 transitions. [2023-11-29 05:23:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:23:46,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 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 986 [2023-11-29 05:23:46,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:47,069 INFO L225 Difference]: With dead ends: 228672 [2023-11-29 05:23:47,069 INFO L226 Difference]: Without dead ends: 121788 [2023-11-29 05:23:47,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:47,100 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 676 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:47,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 136 Invalid, 2578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 2278 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 05:23:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121788 states. [2023-11-29 05:23:48,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121788 to 110710. [2023-11-29 05:23:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110710 states, 110709 states have (on average 1.0588208727384405) internal successors, (117221), 110709 states have internal predecessors, (117221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110710 states to 110710 states and 117221 transitions. [2023-11-29 05:23:48,528 INFO L78 Accepts]: Start accepts. Automaton has 110710 states and 117221 transitions. Word has length 986 [2023-11-29 05:23:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:48,529 INFO L495 AbstractCegarLoop]: Abstraction has 110710 states and 117221 transitions. [2023-11-29 05:23:48,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 110710 states and 117221 transitions. [2023-11-29 05:23:48,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2023-11-29 05:23:48,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:48,560 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:23:48,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 05:23:48,560 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:48,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash -959163471, now seen corresponding path program 1 times [2023-11-29 05:23:48,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:48,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022238635] [2023-11-29 05:23:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:48,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2023-11-29 05:23:49,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022238635] [2023-11-29 05:23:49,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022238635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:49,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:49,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:23:49,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648857342] [2023-11-29 05:23:49,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:49,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:23:49,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:23:49,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:49,218 INFO L87 Difference]: Start difference. First operand 110710 states and 117221 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:51,236 INFO L93 Difference]: Finished difference Result 221419 states and 234455 transitions. [2023-11-29 05:23:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:23:51,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 1002 [2023-11-29 05:23:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:51,344 INFO L225 Difference]: With dead ends: 221419 [2023-11-29 05:23:51,344 INFO L226 Difference]: Without dead ends: 111135 [2023-11-29 05:23:51,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:23:51,389 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 446 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:51,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 692 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:23:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111135 states. [2023-11-29 05:23:52,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111135 to 110708. [2023-11-29 05:23:52,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110708 states, 110707 states have (on average 1.0582618985249352) internal successors, (117157), 110707 states have internal predecessors, (117157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110708 states to 110708 states and 117157 transitions. [2023-11-29 05:23:52,866 INFO L78 Accepts]: Start accepts. Automaton has 110708 states and 117157 transitions. Word has length 1002 [2023-11-29 05:23:52,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:52,867 INFO L495 AbstractCegarLoop]: Abstraction has 110708 states and 117157 transitions. [2023-11-29 05:23:52,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:52,867 INFO L276 IsEmpty]: Start isEmpty. Operand 110708 states and 117157 transitions. [2023-11-29 05:23:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1013 [2023-11-29 05:23:52,920 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:52,921 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-11-29 05:23:52,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 05:23:52,921 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:52,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash 371297932, now seen corresponding path program 1 times [2023-11-29 05:23:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:52,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510710417] [2023-11-29 05:23:52,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:52,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 1418 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2023-11-29 05:23:53,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:53,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510710417] [2023-11-29 05:23:53,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510710417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:53,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:53,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:23:53,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536442865] [2023-11-29 05:23:53,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:53,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:23:53,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:53,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:23:53,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:53,718 INFO L87 Difference]: Start difference. First operand 110708 states and 117157 transitions. Second operand has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:23:56,699 INFO L93 Difference]: Finished difference Result 226963 states and 240102 transitions. [2023-11-29 05:23:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:23:56,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 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 1012 [2023-11-29 05:23:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:23:56,809 INFO L225 Difference]: With dead ends: 226963 [2023-11-29 05:23:56,809 INFO L226 Difference]: Without dead ends: 116681 [2023-11-29 05:23:56,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:56,853 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 802 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:23:56,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 181 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 05:23:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116681 states. [2023-11-29 05:23:58,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116681 to 109858. [2023-11-29 05:23:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109858 states, 109857 states have (on average 1.0554174972919341) internal successors, (115945), 109857 states have internal predecessors, (115945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109858 states to 109858 states and 115945 transitions. [2023-11-29 05:23:58,295 INFO L78 Accepts]: Start accepts. Automaton has 109858 states and 115945 transitions. Word has length 1012 [2023-11-29 05:23:58,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:23:58,296 INFO L495 AbstractCegarLoop]: Abstraction has 109858 states and 115945 transitions. [2023-11-29 05:23:58,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:23:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 109858 states and 115945 transitions. [2023-11-29 05:23:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2023-11-29 05:23:58,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:23:58,349 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-29 05:23:58,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 05:23:58,350 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:23:58,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:23:58,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1476512585, now seen corresponding path program 1 times [2023-11-29 05:23:58,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:23:58,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161623075] [2023-11-29 05:23:58,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:23:58,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:23:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:23:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 1428 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2023-11-29 05:23:59,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:23:59,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161623075] [2023-11-29 05:23:59,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161623075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:23:59,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:23:59,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:23:59,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047794619] [2023-11-29 05:23:59,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:23:59,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:23:59,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:23:59,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:23:59,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:23:59,229 INFO L87 Difference]: Start difference. First operand 109858 states and 115945 transitions. Second operand has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:02,301 INFO L93 Difference]: Finished difference Result 225265 states and 237614 transitions. [2023-11-29 05:24:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:24:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 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 1018 [2023-11-29 05:24:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:02,419 INFO L225 Difference]: With dead ends: 225265 [2023-11-29 05:24:02,419 INFO L226 Difference]: Without dead ends: 115833 [2023-11-29 05:24:02,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:24:02,453 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 794 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:02,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 625 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 05:24:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115833 states. [2023-11-29 05:24:03,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115833 to 109858. [2023-11-29 05:24:03,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109858 states, 109857 states have (on average 1.0552809561520886) internal successors, (115930), 109857 states have internal predecessors, (115930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109858 states to 109858 states and 115930 transitions. [2023-11-29 05:24:03,725 INFO L78 Accepts]: Start accepts. Automaton has 109858 states and 115930 transitions. Word has length 1018 [2023-11-29 05:24:03,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:03,726 INFO L495 AbstractCegarLoop]: Abstraction has 109858 states and 115930 transitions. [2023-11-29 05:24:03,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.75) internal successors, (659), 4 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 109858 states and 115930 transitions. [2023-11-29 05:24:03,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1025 [2023-11-29 05:24:03,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:03,763 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:24:03,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 05:24:03,763 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:03,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash 64146020, now seen corresponding path program 1 times [2023-11-29 05:24:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:03,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068448514] [2023-11-29 05:24:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:03,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1959 backedges. 1230 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2023-11-29 05:24:04,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:04,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068448514] [2023-11-29 05:24:04,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068448514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:04,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:04,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:24:04,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797447658] [2023-11-29 05:24:04,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:04,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:24:04,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:04,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:24:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:04,818 INFO L87 Difference]: Start difference. First operand 109858 states and 115930 transitions. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:06,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:06,977 INFO L93 Difference]: Finished difference Result 207794 states and 218767 transitions. [2023-11-29 05:24:06,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:24:06,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 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 1024 [2023-11-29 05:24:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:07,079 INFO L225 Difference]: With dead ends: 207794 [2023-11-29 05:24:07,079 INFO L226 Difference]: Without dead ends: 98362 [2023-11-29 05:24:07,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:07,121 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 387 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:07,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 654 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 05:24:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98362 states. [2023-11-29 05:24:07,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98362 to 87296. [2023-11-29 05:24:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87296 states, 87295 states have (on average 1.043072340912996) internal successors, (91055), 87295 states have internal predecessors, (91055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87296 states to 87296 states and 91055 transitions. [2023-11-29 05:24:08,106 INFO L78 Accepts]: Start accepts. Automaton has 87296 states and 91055 transitions. Word has length 1024 [2023-11-29 05:24:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:08,107 INFO L495 AbstractCegarLoop]: Abstraction has 87296 states and 91055 transitions. [2023-11-29 05:24:08,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:08,293 INFO L276 IsEmpty]: Start isEmpty. Operand 87296 states and 91055 transitions. [2023-11-29 05:24:08,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2023-11-29 05:24:08,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:08,337 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:24:08,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 05:24:08,338 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:08,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:08,338 INFO L85 PathProgramCache]: Analyzing trace with hash 289346045, now seen corresponding path program 1 times [2023-11-29 05:24:08,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:08,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814809355] [2023-11-29 05:24:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:08,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 1540 proven. 175 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-29 05:24:09,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814809355] [2023-11-29 05:24:09,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814809355] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:24:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009239983] [2023-11-29 05:24:09,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:09,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:24:09,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:24:09,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:24:09,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:24:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:10,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:24:10,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:24:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2255 backedges. 1298 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2023-11-29 05:24:10,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:24:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009239983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:24:10,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:24:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811825501] [2023-11-29 05:24:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:10,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:24:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:24:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:24:10,777 INFO L87 Difference]: Start difference. First operand 87296 states and 91055 transitions. Second operand has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:12,845 INFO L93 Difference]: Finished difference Result 176726 states and 184370 transitions. [2023-11-29 05:24:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:24:12,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 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 1025 [2023-11-29 05:24:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:12,923 INFO L225 Difference]: With dead ends: 176726 [2023-11-29 05:24:12,923 INFO L226 Difference]: Without dead ends: 89006 [2023-11-29 05:24:12,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 1025 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:24:12,955 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 128 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:12,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 170 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 05:24:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89006 states. [2023-11-29 05:24:13,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89006 to 83037. [2023-11-29 05:24:13,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83037 states, 83036 states have (on average 1.0420781347849126) internal successors, (86530), 83036 states have internal predecessors, (86530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83037 states to 83037 states and 86530 transitions. [2023-11-29 05:24:13,879 INFO L78 Accepts]: Start accepts. Automaton has 83037 states and 86530 transitions. Word has length 1025 [2023-11-29 05:24:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:13,880 INFO L495 AbstractCegarLoop]: Abstraction has 83037 states and 86530 transitions. [2023-11-29 05:24:13,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 83037 states and 86530 transitions. [2023-11-29 05:24:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1038 [2023-11-29 05:24:14,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:14,100 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 05:24:14,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:24:14,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 05:24:14,301 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:14,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:14,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1835456729, now seen corresponding path program 1 times [2023-11-29 05:24:14,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:14,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883378435] [2023-11-29 05:24:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:14,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 1263 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-29 05:24:15,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:15,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883378435] [2023-11-29 05:24:15,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883378435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:15,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:15,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:24:15,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389822265] [2023-11-29 05:24:15,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:15,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:24:15,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:15,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:24:15,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:24:15,695 INFO L87 Difference]: Start difference. First operand 83037 states and 86530 transitions. Second operand has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:19,506 INFO L93 Difference]: Finished difference Result 176714 states and 184267 transitions. [2023-11-29 05:24:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:24:19,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 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 1037 [2023-11-29 05:24:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:19,588 INFO L225 Difference]: With dead ends: 176714 [2023-11-29 05:24:19,588 INFO L226 Difference]: Without dead ends: 93676 [2023-11-29 05:24:19,617 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 05:24:19,617 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 746 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 3158 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 3355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:19,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 295 Invalid, 3355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3158 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 05:24:19,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93676 states. [2023-11-29 05:24:20,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93676 to 84311. [2023-11-29 05:24:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84311 states, 84310 states have (on average 1.0399952556043175) internal successors, (87682), 84310 states have internal predecessors, (87682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84311 states to 84311 states and 87682 transitions. [2023-11-29 05:24:20,578 INFO L78 Accepts]: Start accepts. Automaton has 84311 states and 87682 transitions. Word has length 1037 [2023-11-29 05:24:20,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:20,579 INFO L495 AbstractCegarLoop]: Abstraction has 84311 states and 87682 transitions. [2023-11-29 05:24:20,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:20,579 INFO L276 IsEmpty]: Start isEmpty. Operand 84311 states and 87682 transitions. [2023-11-29 05:24:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2023-11-29 05:24:20,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:20,609 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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] [2023-11-29 05:24:20,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 05:24:20,609 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:20,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:20,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1351349682, now seen corresponding path program 1 times [2023-11-29 05:24:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:20,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337772917] [2023-11-29 05:24:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:20,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2167 backedges. 1809 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-11-29 05:24:21,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:21,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337772917] [2023-11-29 05:24:21,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337772917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:21,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:21,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:24:21,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042667664] [2023-11-29 05:24:21,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:21,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:24:21,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:21,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:24:21,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:24:21,871 INFO L87 Difference]: Start difference. First operand 84311 states and 87682 transitions. Second operand has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:27,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:27,390 INFO L93 Difference]: Finished difference Result 176290 states and 183252 transitions. [2023-11-29 05:24:27,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:24:27,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 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 1040 [2023-11-29 05:24:27,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:27,476 INFO L225 Difference]: With dead ends: 176290 [2023-11-29 05:24:27,476 INFO L226 Difference]: Without dead ends: 91980 [2023-11-29 05:24:27,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:24:27,510 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 1905 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5584 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1905 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 6054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 5584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:27,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1905 Valid, 231 Invalid, 6054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 5584 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 05:24:27,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91980 states. [2023-11-29 05:24:28,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91980 to 77501. [2023-11-29 05:24:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77501 states, 77500 states have (on average 1.0391741935483871) internal successors, (80536), 77500 states have internal predecessors, (80536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:28,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77501 states to 77501 states and 80536 transitions. [2023-11-29 05:24:28,432 INFO L78 Accepts]: Start accepts. Automaton has 77501 states and 80536 transitions. Word has length 1040 [2023-11-29 05:24:28,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:28,433 INFO L495 AbstractCegarLoop]: Abstraction has 77501 states and 80536 transitions. [2023-11-29 05:24:28,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:28,433 INFO L276 IsEmpty]: Start isEmpty. Operand 77501 states and 80536 transitions. [2023-11-29 05:24:28,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1047 [2023-11-29 05:24:28,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:28,462 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:24:28,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 05:24:28,463 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:28,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:28,463 INFO L85 PathProgramCache]: Analyzing trace with hash -850204894, now seen corresponding path program 1 times [2023-11-29 05:24:28,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:28,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87692649] [2023-11-29 05:24:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:28,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1219 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-29 05:24:30,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:30,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87692649] [2023-11-29 05:24:30,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87692649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:30,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:30,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:24:30,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422430057] [2023-11-29 05:24:30,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:30,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:24:30,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:30,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:24:30,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:24:30,390 INFO L87 Difference]: Start difference. First operand 77501 states and 80536 transitions. Second operand has 5 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:33,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:33,659 INFO L93 Difference]: Finished difference Result 164382 states and 170614 transitions. [2023-11-29 05:24:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:24:33,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 0 states have call successors, (0), 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 1046 [2023-11-29 05:24:33,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:33,731 INFO L225 Difference]: With dead ends: 164382 [2023-11-29 05:24:33,732 INFO L226 Difference]: Without dead ends: 86457 [2023-11-29 05:24:33,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:24:33,759 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 663 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:33,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 106 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 05:24:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86457 states. [2023-11-29 05:24:34,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86457 to 76226. [2023-11-29 05:24:34,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76226 states, 76225 states have (on average 1.0394489996720235) internal successors, (79232), 76225 states have internal predecessors, (79232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76226 states to 76226 states and 79232 transitions. [2023-11-29 05:24:34,669 INFO L78 Accepts]: Start accepts. Automaton has 76226 states and 79232 transitions. Word has length 1046 [2023-11-29 05:24:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:34,669 INFO L495 AbstractCegarLoop]: Abstraction has 76226 states and 79232 transitions. [2023-11-29 05:24:34,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 76226 states and 79232 transitions. [2023-11-29 05:24:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2023-11-29 05:24:34,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:34,702 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:24:34,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 05:24:34,702 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:34,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:34,702 INFO L85 PathProgramCache]: Analyzing trace with hash 156486590, now seen corresponding path program 1 times [2023-11-29 05:24:34,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:34,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608087654] [2023-11-29 05:24:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:34,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 1663 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-11-29 05:24:36,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:36,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608087654] [2023-11-29 05:24:36,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608087654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:36,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:36,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:24:36,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325194697] [2023-11-29 05:24:36,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:36,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:24:36,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:36,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:24:36,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:36,053 INFO L87 Difference]: Start difference. First operand 76226 states and 79232 transitions. Second operand has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:37,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:37,797 INFO L93 Difference]: Finished difference Result 153305 states and 159325 transitions. [2023-11-29 05:24:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:24:37,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 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 1114 [2023-11-29 05:24:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:37,865 INFO L225 Difference]: With dead ends: 153305 [2023-11-29 05:24:37,865 INFO L226 Difference]: Without dead ends: 77080 [2023-11-29 05:24:37,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:37,891 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 115 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:37,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 713 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:24:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77080 states. [2023-11-29 05:24:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77080 to 76651. [2023-11-29 05:24:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76651 states, 76650 states have (on average 1.0390737116764515) internal successors, (79645), 76650 states have internal predecessors, (79645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76651 states to 76651 states and 79645 transitions. [2023-11-29 05:24:38,764 INFO L78 Accepts]: Start accepts. Automaton has 76651 states and 79645 transitions. Word has length 1114 [2023-11-29 05:24:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:38,764 INFO L495 AbstractCegarLoop]: Abstraction has 76651 states and 79645 transitions. [2023-11-29 05:24:38,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 76651 states and 79645 transitions. [2023-11-29 05:24:38,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2023-11-29 05:24:38,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:38,797 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:24:38,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 05:24:38,797 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:38,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash -676680667, now seen corresponding path program 1 times [2023-11-29 05:24:38,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:38,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880096669] [2023-11-29 05:24:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:38,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 1218 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-29 05:24:40,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:40,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880096669] [2023-11-29 05:24:40,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880096669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:40,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:40,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:24:40,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317166374] [2023-11-29 05:24:40,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:40,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:24:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:40,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:24:40,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:40,919 INFO L87 Difference]: Start difference. First operand 76651 states and 79645 transitions. Second operand has 3 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:42,775 INFO L93 Difference]: Finished difference Result 153727 states and 159728 transitions. [2023-11-29 05:24:42,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:24:42,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 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 1151 [2023-11-29 05:24:42,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:42,832 INFO L225 Difference]: With dead ends: 153727 [2023-11-29 05:24:42,832 INFO L226 Difference]: Without dead ends: 77077 [2023-11-29 05:24:42,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:24:42,844 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 51 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:42,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 721 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:24:42,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77077 states. [2023-11-29 05:24:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77077 to 77076. [2023-11-29 05:24:43,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77076 states, 77075 states have (on average 1.0388193318196561) internal successors, (80067), 77075 states have internal predecessors, (80067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:43,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77076 states to 77076 states and 80067 transitions. [2023-11-29 05:24:43,584 INFO L78 Accepts]: Start accepts. Automaton has 77076 states and 80067 transitions. Word has length 1151 [2023-11-29 05:24:43,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:43,585 INFO L495 AbstractCegarLoop]: Abstraction has 77076 states and 80067 transitions. [2023-11-29 05:24:43,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:43,585 INFO L276 IsEmpty]: Start isEmpty. Operand 77076 states and 80067 transitions. [2023-11-29 05:24:43,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2023-11-29 05:24:43,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:43,620 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:24:43,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 05:24:43,621 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:43,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:43,621 INFO L85 PathProgramCache]: Analyzing trace with hash 527748498, now seen corresponding path program 1 times [2023-11-29 05:24:43,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:43,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608655129] [2023-11-29 05:24:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:43,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2526 backedges. 1716 proven. 728 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 05:24:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608655129] [2023-11-29 05:24:45,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608655129] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:24:45,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085456531] [2023-11-29 05:24:45,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:45,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:24:45,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:24:45,572 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:24:45,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:24:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:45,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:24:45,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:24:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2526 backedges. 1538 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2023-11-29 05:24:46,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:24:46,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085456531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:46,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:24:46,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-29 05:24:46,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246492921] [2023-11-29 05:24:46,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:46,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:24:46,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:24:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:24:46,897 INFO L87 Difference]: Start difference. First operand 77076 states and 80067 transitions. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:48,650 INFO L93 Difference]: Finished difference Result 144779 states and 150063 transitions. [2023-11-29 05:24:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:24:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 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 1206 [2023-11-29 05:24:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:48,710 INFO L225 Difference]: With dead ends: 144779 [2023-11-29 05:24:48,710 INFO L226 Difference]: Without dead ends: 67704 [2023-11-29 05:24:48,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1212 GetRequests, 1206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:24:48,738 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 128 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:48,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 676 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 05:24:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67704 states. [2023-11-29 05:24:49,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67704 to 66850. [2023-11-29 05:24:49,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66850 states, 66849 states have (on average 1.0326706457837813) internal successors, (69033), 66849 states have internal predecessors, (69033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66850 states to 66850 states and 69033 transitions. [2023-11-29 05:24:49,434 INFO L78 Accepts]: Start accepts. Automaton has 66850 states and 69033 transitions. Word has length 1206 [2023-11-29 05:24:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:49,435 INFO L495 AbstractCegarLoop]: Abstraction has 66850 states and 69033 transitions. [2023-11-29 05:24:49,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:49,435 INFO L276 IsEmpty]: Start isEmpty. Operand 66850 states and 69033 transitions. [2023-11-29 05:24:49,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1333 [2023-11-29 05:24:49,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:49,641 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:24:49,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:24:49,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 05:24:49,841 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:49,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:49,842 INFO L85 PathProgramCache]: Analyzing trace with hash 48037123, now seen corresponding path program 1 times [2023-11-29 05:24:49,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:49,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141381618] [2023-11-29 05:24:49,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:49,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 1518 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2023-11-29 05:24:50,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:50,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141381618] [2023-11-29 05:24:50,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141381618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:24:50,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:24:50,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:24:50,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043663255] [2023-11-29 05:24:50,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:24:50,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:24:50,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:24:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:24:50,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:24:50,867 INFO L87 Difference]: Start difference. First operand 66850 states and 69033 transitions. Second operand has 4 states, 4 states have (on average 210.5) internal successors, (842), 4 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 05:24:53,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:24:53,862 INFO L93 Difference]: Finished difference Result 156262 states and 161539 transitions. [2023-11-29 05:24:53,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:24:53,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.5) internal successors, (842), 4 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) Word has length 1332 [2023-11-29 05:24:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:24:53,941 INFO L225 Difference]: With dead ends: 156262 [2023-11-29 05:24:53,941 INFO L226 Difference]: Without dead ends: 88988 [2023-11-29 05:24:53,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:24:53,971 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 566 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:24:53,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 142 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 05:24:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88988 states. [2023-11-29 05:24:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88988 to 75794. [2023-11-29 05:24:54,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75794 states, 75793 states have (on average 1.0329318010898103) internal successors, (78289), 75793 states have internal predecessors, (78289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:24:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75794 states to 75794 states and 78289 transitions. [2023-11-29 05:24:54,902 INFO L78 Accepts]: Start accepts. Automaton has 75794 states and 78289 transitions. Word has length 1332 [2023-11-29 05:24:54,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:24:54,903 INFO L495 AbstractCegarLoop]: Abstraction has 75794 states and 78289 transitions. [2023-11-29 05:24:54,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.5) internal successors, (842), 4 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 05:24:54,904 INFO L276 IsEmpty]: Start isEmpty. Operand 75794 states and 78289 transitions. [2023-11-29 05:24:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1366 [2023-11-29 05:24:54,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:24:54,957 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:24:54,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 05:24:54,957 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:24:54,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:24:54,958 INFO L85 PathProgramCache]: Analyzing trace with hash 150486807, now seen corresponding path program 1 times [2023-11-29 05:24:54,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:24:54,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301441318] [2023-11-29 05:24:54,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:54,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:24:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 2430 proven. 79 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2023-11-29 05:24:57,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:24:57,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301441318] [2023-11-29 05:24:57,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301441318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:24:57,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663256816] [2023-11-29 05:24:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:24:57,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:24:57,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:24:57,692 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:24:57,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:24:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:24:58,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 05:24:58,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:24:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1720 proven. 79 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2023-11-29 05:24:58,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:25:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1799 proven. 0 refuted. 0 times theorem prover too weak. 1645 trivial. 0 not checked. [2023-11-29 05:25:06,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663256816] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:06,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:25:06,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 13 [2023-11-29 05:25:06,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549121398] [2023-11-29 05:25:06,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:06,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:25:06,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:25:06,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:25:06,991 INFO L87 Difference]: Start difference. First operand 75794 states and 78289 transitions. Second operand has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:11,600 INFO L93 Difference]: Finished difference Result 158830 states and 163951 transitions. [2023-11-29 05:25:11,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:11,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 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 1365 [2023-11-29 05:25:11,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:11,659 INFO L225 Difference]: With dead ends: 158830 [2023-11-29 05:25:11,659 INFO L226 Difference]: Without dead ends: 82612 [2023-11-29 05:25:11,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2734 GetRequests, 2644 SyntacticMatches, 79 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-11-29 05:25:11,672 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 986 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 2955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:11,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 67 Invalid, 2955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-29 05:25:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82612 states. [2023-11-29 05:25:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82612 to 75790. [2023-11-29 05:25:12,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75790 states, 75789 states have (on average 1.0327752048450303) internal successors, (78273), 75789 states have internal predecessors, (78273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75790 states to 75790 states and 78273 transitions. [2023-11-29 05:25:12,444 INFO L78 Accepts]: Start accepts. Automaton has 75790 states and 78273 transitions. Word has length 1365 [2023-11-29 05:25:12,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:12,445 INFO L495 AbstractCegarLoop]: Abstraction has 75790 states and 78273 transitions. [2023-11-29 05:25:12,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 75790 states and 78273 transitions. [2023-11-29 05:25:12,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1368 [2023-11-29 05:25:12,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:12,497 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:25:12,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 05:25:12,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 05:25:12,698 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:25:12,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:12,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1807925977, now seen corresponding path program 1 times [2023-11-29 05:25:12,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:12,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711886075] [2023-11-29 05:25:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:12,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3414 backedges. 1831 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2023-11-29 05:25:14,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711886075] [2023-11-29 05:25:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711886075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:14,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:14,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:14,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590704493] [2023-11-29 05:25:14,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:14,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:14,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:14,021 INFO L87 Difference]: Start difference. First operand 75790 states and 78273 transitions. Second operand has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:16,100 INFO L93 Difference]: Finished difference Result 152852 states and 157795 transitions. [2023-11-29 05:25:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:16,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 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 1367 [2023-11-29 05:25:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:16,165 INFO L225 Difference]: With dead ends: 152852 [2023-11-29 05:25:16,165 INFO L226 Difference]: Without dead ends: 77063 [2023-11-29 05:25:16,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:16,196 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 131 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:16,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 214 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 05:25:16,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77063 states. [2023-11-29 05:25:16,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77063 to 72380. [2023-11-29 05:25:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72380 states, 72379 states have (on average 1.0290001243454594) internal successors, (74478), 72379 states have internal predecessors, (74478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:16,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72380 states to 72380 states and 74478 transitions. [2023-11-29 05:25:16,991 INFO L78 Accepts]: Start accepts. Automaton has 72380 states and 74478 transitions. Word has length 1367 [2023-11-29 05:25:16,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:16,991 INFO L495 AbstractCegarLoop]: Abstraction has 72380 states and 74478 transitions. [2023-11-29 05:25:16,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:16,992 INFO L276 IsEmpty]: Start isEmpty. Operand 72380 states and 74478 transitions. [2023-11-29 05:25:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1494 [2023-11-29 05:25:17,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:17,046 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:25:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 05:25:17,046 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:25:17,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash 855792787, now seen corresponding path program 1 times [2023-11-29 05:25:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755556640] [2023-11-29 05:25:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3142 backedges. 2180 proven. 0 refuted. 0 times theorem prover too weak. 962 trivial. 0 not checked. [2023-11-29 05:25:18,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:18,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755556640] [2023-11-29 05:25:18,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755556640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:18,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:18,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:25:18,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665352510] [2023-11-29 05:25:18,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:18,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:25:18,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:18,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:25:18,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:18,657 INFO L87 Difference]: Start difference. First operand 72380 states and 74478 transitions. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:20,506 INFO L93 Difference]: Finished difference Result 144336 states and 148521 transitions. [2023-11-29 05:25:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:25:20,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 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 1493 [2023-11-29 05:25:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:20,563 INFO L225 Difference]: With dead ends: 144336 [2023-11-29 05:25:20,564 INFO L226 Difference]: Without dead ends: 71957 [2023-11-29 05:25:20,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:25:20,591 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 65 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:20,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 656 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 05:25:20,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71957 states. [2023-11-29 05:25:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71957 to 69401. [2023-11-29 05:25:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69401 states, 69400 states have (on average 1.0284005763688762) internal successors, (71371), 69400 states have internal predecessors, (71371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69401 states to 69401 states and 71371 transitions. [2023-11-29 05:25:21,279 INFO L78 Accepts]: Start accepts. Automaton has 69401 states and 71371 transitions. Word has length 1493 [2023-11-29 05:25:21,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:21,280 INFO L495 AbstractCegarLoop]: Abstraction has 69401 states and 71371 transitions. [2023-11-29 05:25:21,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:21,281 INFO L276 IsEmpty]: Start isEmpty. Operand 69401 states and 71371 transitions. [2023-11-29 05:25:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1797 [2023-11-29 05:25:21,337 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:21,338 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:25:21,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-11-29 05:25:21,338 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:25:21,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:21,339 INFO L85 PathProgramCache]: Analyzing trace with hash -484974867, now seen corresponding path program 1 times [2023-11-29 05:25:21,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:21,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635281970] [2023-11-29 05:25:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:21,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4930 backedges. 3935 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2023-11-29 05:25:23,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:23,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635281970] [2023-11-29 05:25:23,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635281970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:23,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:23,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:25:23,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64902751] [2023-11-29 05:25:23,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:23,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:23,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:23,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:23,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:23,436 INFO L87 Difference]: Start difference. First operand 69401 states and 71371 transitions. Second operand has 5 states, 5 states have (on average 223.4) internal successors, (1117), 5 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:26,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:26,359 INFO L93 Difference]: Finished difference Result 138801 states and 142724 transitions. [2023-11-29 05:25:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:26,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 223.4) internal successors, (1117), 5 states have internal predecessors, (1117), 0 states have call successors, (0), 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 1796 [2023-11-29 05:25:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:26,418 INFO L225 Difference]: With dead ends: 138801 [2023-11-29 05:25:26,418 INFO L226 Difference]: Without dead ends: 69401 [2023-11-29 05:25:26,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:26,443 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 721 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 2950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:26,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 669 Invalid, 2950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 05:25:26,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69401 states. [2023-11-29 05:25:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69401 to 68973. [2023-11-29 05:25:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68973 states, 68972 states have (on average 1.0276199037290494) internal successors, (70877), 68972 states have internal predecessors, (70877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68973 states to 68973 states and 70877 transitions. [2023-11-29 05:25:27,172 INFO L78 Accepts]: Start accepts. Automaton has 68973 states and 70877 transitions. Word has length 1796 [2023-11-29 05:25:27,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:27,173 INFO L495 AbstractCegarLoop]: Abstraction has 68973 states and 70877 transitions. [2023-11-29 05:25:27,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 223.4) internal successors, (1117), 5 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 68973 states and 70877 transitions. [2023-11-29 05:25:27,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1875 [2023-11-29 05:25:27,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:27,236 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:25:27,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-11-29 05:25:27,236 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:25:27,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:27,236 INFO L85 PathProgramCache]: Analyzing trace with hash 563264071, now seen corresponding path program 1 times [2023-11-29 05:25:27,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:27,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411316398] [2023-11-29 05:25:27,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:27,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5609 backedges. 3512 proven. 0 refuted. 0 times theorem prover too weak. 2097 trivial. 0 not checked. [2023-11-29 05:25:29,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:29,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411316398] [2023-11-29 05:25:29,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411316398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:29,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:29,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:25:29,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783538141] [2023-11-29 05:25:29,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:29,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:25:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:25:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:29,792 INFO L87 Difference]: Start difference. First operand 68973 states and 70877 transitions. Second operand has 5 states, 5 states have (on average 219.6) internal successors, (1098), 5 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:33,175 INFO L93 Difference]: Finished difference Result 146886 states and 150951 transitions. [2023-11-29 05:25:33,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:25:33,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 219.6) internal successors, (1098), 5 states have internal predecessors, (1098), 0 states have call successors, (0), 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 1874 [2023-11-29 05:25:33,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:33,244 INFO L225 Difference]: With dead ends: 146886 [2023-11-29 05:25:33,244 INFO L226 Difference]: Without dead ends: 77914 [2023-11-29 05:25:33,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:25:33,272 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 872 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 2873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:33,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 110 Invalid, 2873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 05:25:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77914 states. [2023-11-29 05:25:33,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77914 to 68111. [2023-11-29 05:25:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68111 states, 68110 states have (on average 1.0254734987520189) internal successors, (69845), 68110 states have internal predecessors, (69845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68111 states to 68111 states and 69845 transitions. [2023-11-29 05:25:34,071 INFO L78 Accepts]: Start accepts. Automaton has 68111 states and 69845 transitions. Word has length 1874 [2023-11-29 05:25:34,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:34,072 INFO L495 AbstractCegarLoop]: Abstraction has 68111 states and 69845 transitions. [2023-11-29 05:25:34,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 219.6) internal successors, (1098), 5 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:34,072 INFO L276 IsEmpty]: Start isEmpty. Operand 68111 states and 69845 transitions. [2023-11-29 05:25:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1958 [2023-11-29 05:25:34,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:34,133 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:25:34,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-11-29 05:25:34,133 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:25:34,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:34,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1190683553, now seen corresponding path program 1 times [2023-11-29 05:25:34,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:34,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059757492] [2023-11-29 05:25:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 4691 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2023-11-29 05:25:36,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:36,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059757492] [2023-11-29 05:25:36,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059757492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:25:36,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:25:36,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:25:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778963764] [2023-11-29 05:25:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:25:36,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:25:36,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:25:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:25:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:36,847 INFO L87 Difference]: Start difference. First operand 68111 states and 69845 transitions. Second operand has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:25:39,662 INFO L93 Difference]: Finished difference Result 155381 states and 159375 transitions. [2023-11-29 05:25:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:25:39,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 0 states have call successors, (0), 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 1957 [2023-11-29 05:25:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:25:39,738 INFO L225 Difference]: With dead ends: 155381 [2023-11-29 05:25:39,738 INFO L226 Difference]: Without dead ends: 87271 [2023-11-29 05:25:39,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:25:39,766 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 187 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:25:39,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 134 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 05:25:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87271 states. [2023-11-29 05:25:40,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87271 to 78335. [2023-11-29 05:25:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78335 states, 78334 states have (on average 1.0252636147777465) internal successors, (80313), 78334 states have internal predecessors, (80313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78335 states to 78335 states and 80313 transitions. [2023-11-29 05:25:40,669 INFO L78 Accepts]: Start accepts. Automaton has 78335 states and 80313 transitions. Word has length 1957 [2023-11-29 05:25:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:25:40,670 INFO L495 AbstractCegarLoop]: Abstraction has 78335 states and 80313 transitions. [2023-11-29 05:25:40,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 328.0) internal successors, (1312), 4 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:25:40,670 INFO L276 IsEmpty]: Start isEmpty. Operand 78335 states and 80313 transitions. [2023-11-29 05:25:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2201 [2023-11-29 05:25:40,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:25:40,743 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 05:25:40,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-11-29 05:25:40,743 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:25:40,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:25:40,744 INFO L85 PathProgramCache]: Analyzing trace with hash 684583904, now seen corresponding path program 1 times [2023-11-29 05:25:40,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:25:40,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589898961] [2023-11-29 05:25:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:40,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:25:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:45,664 INFO L134 CoverageAnalysis]: Checked inductivity of 7254 backedges. 4954 proven. 1802 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2023-11-29 05:25:45,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:25:45,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589898961] [2023-11-29 05:25:45,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589898961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:25:45,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915863815] [2023-11-29 05:25:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:25:45,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:25:45,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:25:45,666 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:25:45,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e52ff7c-c831-4f8b-8cd5-caf911c6749c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:25:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:25:46,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 2521 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:25:46,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:26:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7254 backedges. 4750 proven. 1334 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2023-11-29 05:26:19,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:26:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 7254 backedges. 5745 proven. 339 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2023-11-29 05:26:21,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915863815] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:26:21,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 05:26:21,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2023-11-29 05:26:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013828709] [2023-11-29 05:26:21,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 05:26:21,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 05:26:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:26:21,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 05:26:21,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-11-29 05:26:21,325 INFO L87 Difference]: Start difference. First operand 78335 states and 80313 transitions. Second operand has 19 states, 19 states have (on average 216.6315789473684) internal successors, (4116), 19 states have internal predecessors, (4116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:26:29,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:26:33,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:26:43,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:26:50,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:26:54,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:26:58,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:03,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:07,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:11,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:15,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:20,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:24,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:28,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:33,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:34,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:37,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:41,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:44,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:49,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:51,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:55,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:27:59,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:00,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:04,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:07,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:11,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:15,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:19,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:22,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:26,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:28,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:32,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:35,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:40,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:44,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:48,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:53,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:28:57,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:02,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:06,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:11,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:15,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:17,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:21,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:26,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:30,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:32,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:36,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:40,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:45,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:50,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 05:29:54,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:29:58,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:00,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:06,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:11,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:15,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:18,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:23,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:24,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:27,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:33,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:36,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:38,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:40,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:45,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:49,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:51,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:30:55,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:01,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:03,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:07,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:11,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:15,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:20,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:25,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:30,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:33,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:37,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:41,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:46,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:48,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:31:54,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:00,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:05,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:09,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:14,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:19,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:24,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:28,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:30,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:34,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:43,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:48,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:53,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:32:57,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:01,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:04,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:09,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:14,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:18,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:22,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:27,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:32,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:36,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:41,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:45,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:49,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:33:54,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:01,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:06,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:08,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:20,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:24,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:29,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:31,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:36,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:41,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:45,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2023-11-29 05:34:47,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1]