./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0de3702172247e9daf688602f826d117afa5d623a980b5c7e35d9c75cbe83a45 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:05:40,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:05:40,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:05:40,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:05:40,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:05:40,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:05:40,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:05:40,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:05:40,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:05:40,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:05:40,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:05:40,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:05:40,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:05:40,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:05:40,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:05:40,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:05:40,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:05:40,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:05:40,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:05:40,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:05:40,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:05:40,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:05:40,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:05:40,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:05:40,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:05:40,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:05:40,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:05:40,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:05:40,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:05:40,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:05:41,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:05:41,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:05:41,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:05:41,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:05:41,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:05:41,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:05:41,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:05:41,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:05:41,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:05:41,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:05:41,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:05:41,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:05:41,073 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:05:41,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:05:41,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:05:41,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:05:41,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:05:41,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:05:41,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:05:41,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:05:41,077 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:05:41,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:05:41,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:05:41,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:05:41,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:05:41,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:05:41,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:05:41,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:05:41,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:05:41,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:05:41,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:05:41,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:05:41,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:05:41,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:41,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:05:41,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:05:41,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:05:41,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:05:41,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:05:41,082 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:05:41,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:05:41,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:05:41,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0de3702172247e9daf688602f826d117afa5d623a980b5c7e35d9c75cbe83a45 [2022-10-17 11:05:41,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:05:41,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:05:41,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:05:41,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:05:41,468 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:05:41,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2022-10-17 11:05:41,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/data/8b581a110/bcc4cf20cacc4fd4b6e3549c1349a3ac/FLAG1740668a7 [2022-10-17 11:05:42,378 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:05:42,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2022-10-17 11:05:42,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/data/8b581a110/bcc4cf20cacc4fd4b6e3549c1349a3ac/FLAG1740668a7 [2022-10-17 11:05:42,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/data/8b581a110/bcc4cf20cacc4fd4b6e3549c1349a3ac [2022-10-17 11:05:42,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:05:42,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:05:42,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:42,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:05:42,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:05:42,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:42" (1/1) ... [2022-10-17 11:05:42,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac6b30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:42, skipping insertion in model container [2022-10-17 11:05:42,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:42" (1/1) ... [2022-10-17 11:05:42,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:05:43,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:05:44,854 WARN L230 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_26aef026-f936-4007-9699-5ec8258f75ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i[230653,230666] [2022-10-17 11:05:44,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:44,954 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:05:45,325 WARN L230 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_26aef026-f936-4007-9699-5ec8258f75ec/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i[230653,230666] [2022-10-17 11:05:45,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:45,456 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:05:45,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45 WrapperNode [2022-10-17 11:05:45,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:45,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:45,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:05:45,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:05:45,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,758 INFO L138 Inliner]: procedures = 258, calls = 1568, calls flagged for inlining = 102, calls inlined = 102, statements flattened = 4328 [2022-10-17 11:05:45,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:45,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:05:45,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:05:45,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:05:45,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:46,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:46,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:46,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:46,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:46,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:05:46,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:05:46,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:05:46,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:05:46,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:46,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:46,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:05:46,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:05:46,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26aef026-f936-4007-9699-5ec8258f75ec/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:05:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2022-10-17 11:05:46,218 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2022-10-17 11:05:46,218 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-10-17 11:05:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-10-17 11:05:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-17 11:05:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure queue_if_no_path [2022-10-17 11:05:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_if_no_path [2022-10-17 11:05:46,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 11:05:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 11:05:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 11:05:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 11:05:46,220 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_message [2022-10-17 11:05:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_message [2022-10-17 11:05:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_end_io [2022-10-17 11:05:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_end_io [2022-10-17 11:05:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ctr [2022-10-17 11:05:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ctr [2022-10-17 11:05:46,221 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 11:05:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 11:05:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:05:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:05:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-10-17 11:05:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-10-17 11:05:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg_num [2022-10-17 11:05:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg_num [2022-10-17 11:05:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-10-17 11:05:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-10-17 11:05:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-10-17 11:05:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-10-17 11:05:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_clone_and_map [2022-10-17 11:05:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_clone_and_map [2022-10-17 11:05:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure parse_path_selector [2022-10-17 11:05:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_path_selector [2022-10-17 11:05:46,225 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_iterate_devices [2022-10-17 11:05:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_iterate_devices [2022-10-17 11:05:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 11:05:46,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 11:05:46,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 11:05:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 11:05:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-10-17 11:05:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-10-17 11:05:46,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:05:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:05:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_dtr [2022-10-17 11:05:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_dtr [2022-10-17 11:05:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 11:05:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 11:05:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_detach [2022-10-17 11:05:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_detach [2022-10-17 11:05:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2022-10-17 11:05:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2022-10-17 11:05:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_path_selector [2022-10-17 11:05:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_path_selector [2022-10-17 11:05:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 11:05:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 11:05:46,231 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_handler_exist [2022-10-17 11:05:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_handler_exist [2022-10-17 11:05:46,232 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-17 11:05:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-17 11:05:46,233 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_ioctl [2022-10-17 11:05:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_ioctl [2022-10-17 11:05:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure clear_mapinfo [2022-10-17 11:05:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_mapinfo [2022-10-17 11:05:46,234 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2022-10-17 11:05:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2022-10-17 11:05:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure free_priority_group [2022-10-17 11:05:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure free_priority_group [2022-10-17 11:05:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:05:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 11:05:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 11:05:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-10-17 11:05:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-10-17 11:05:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:05:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure __must_push_back [2022-10-17 11:05:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __must_push_back [2022-10-17 11:05:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 11:05:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-17 11:05:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-10-17 11:05:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-10-17 11:05:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 11:05:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 11:05:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 11:05:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 11:05:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure get_path_selector [2022-10-17 11:05:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure get_path_selector [2022-10-17 11:05:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-10-17 11:05:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-10-17 11:05:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:05:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_release_clone [2022-10-17 11:05:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_release_clone [2022-10-17 11:05:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:05:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure bypass_pg [2022-10-17 11:05:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bypass_pg [2022-10-17 11:05:46,243 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_event [2022-10-17 11:05:46,243 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_event [2022-10-17 11:05:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 11:05:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 11:05:46,244 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 11:05:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 11:05:46,245 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-10-17 11:05:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-10-17 11:05:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure free_pgpath [2022-10-17 11:05:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pgpath [2022-10-17 11:05:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 11:05:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 11:05:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_path_in_pg [2022-10-17 11:05:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_path_in_pg [2022-10-17 11:05:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 11:05:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 11:05:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure activate_path [2022-10-17 11:05:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_path [2022-10-17 11:05:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2022-10-17 11:05:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2022-10-17 11:05:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure flush_multipath_work [2022-10-17 11:05:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_multipath_work [2022-10-17 11:05:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-17 11:05:46,250 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-17 11:05:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_dh_attach [2022-10-17 11:05:46,251 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_dh_attach [2022-10-17 11:05:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-10-17 11:05:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-10-17 11:05:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_run_md_queue_async [2022-10-17 11:05:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_run_md_queue_async [2022-10-17 11:05:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-10-17 11:05:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-10-17 11:05:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_postsuspend [2022-10-17 11:05:46,258 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_postsuspend [2022-10-17 11:05:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure fail_path [2022-10-17 11:05:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fail_path [2022-10-17 11:05:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:05:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_map [2022-10-17 11:05:46,265 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_map [2022-10-17 11:05:46,265 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:05:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:05:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 11:05:46,266 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 11:05:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:05:46,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 11:05:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 11:05:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 11:05:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 11:05:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 11:05:46,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 11:05:46,267 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg [2022-10-17 11:05:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg [2022-10-17 11:05:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-10-17 11:05:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-10-17 11:05:46,268 INFO L130 BoogieDeclarations]: Found specification of procedure __choose_pgpath [2022-10-17 11:05:46,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __choose_pgpath [2022-10-17 11:05:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:05:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 11:05:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 11:05:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure dm_path_uevent [2022-10-17 11:05:46,269 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_path_uevent [2022-10-17 11:05:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-10-17 11:05:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-10-17 11:05:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 11:05:46,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 11:05:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:05:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-17 11:05:46,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-17 11:05:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:05:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 11:05:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure parse_priority_group [2022-10-17 11:05:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_priority_group [2022-10-17 11:05:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:05:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:05:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure __pg_init_all_paths [2022-10-17 11:05:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __pg_init_all_paths [2022-10-17 11:05:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-10-17 11:05:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-10-17 11:05:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_presuspend [2022-10-17 11:05:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_presuspend [2022-10-17 11:05:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consume_args [2022-10-17 11:05:46,274 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consume_args [2022-10-17 11:05:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2022-10-17 11:05:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2022-10-17 11:05:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 11:05:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 11:05:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure free_multipath [2022-10-17 11:05:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure free_multipath [2022-10-17 11:05:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure __multipath_map [2022-10-17 11:05:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __multipath_map [2022-10-17 11:05:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-10-17 11:05:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-10-17 11:05:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2022-10-17 11:05:46,276 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2022-10-17 11:05:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_status [2022-10-17 11:05:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_status [2022-10-17 11:05:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-10-17 11:05:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-10-17 11:05:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_busy [2022-10-17 11:05:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_busy [2022-10-17 11:05:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-17 11:05:46,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-17 11:05:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2022-10-17 11:05:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure __find_path_selector_type [2022-10-17 11:05:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_path_selector_type [2022-10-17 11:05:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-10-17 11:05:46,280 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-10-17 11:05:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure multipath_resume [2022-10-17 11:05:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure multipath_resume [2022-10-17 11:05:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:05:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-10-17 11:05:46,281 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-10-17 11:05:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-10-17 11:05:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-10-17 11:05:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:05:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:05:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 11:05:46,282 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 11:05:47,198 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:05:47,207 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:05:47,310 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 11:05:51,297 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:05:51,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:05:51,329 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:05:51,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:51 BoogieIcfgContainer [2022-10-17 11:05:51,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:05:51,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:05:51,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:05:51,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:05:51,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:05:42" (1/3) ... [2022-10-17 11:05:51,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b86cd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:51, skipping insertion in model container [2022-10-17 11:05:51,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45" (2/3) ... [2022-10-17 11:05:51,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b86cd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:51, skipping insertion in model container [2022-10-17 11:05:51,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:51" (3/3) ... [2022-10-17 11:05:51,346 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-multipath.ko-entry_point.cil.out.i [2022-10-17 11:05:51,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:05:51,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:05:51,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:05:51,518 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=LoopsAndPotentialCycles, 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;@171ed23b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:05:51,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:05:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 1641 states, 1155 states have (on average 1.3593073593073592) internal successors, (1570), 1182 states have internal predecessors, (1570), 387 states have call successors, (387), 98 states have call predecessors, (387), 97 states have return successors, (382), 375 states have call predecessors, (382), 382 states have call successors, (382) [2022-10-17 11:05:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-10-17 11:05:51,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:51,597 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:51,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:05:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:51,603 INFO L85 PathProgramCache]: Analyzing trace with hash 515794747, now seen corresponding path program 1 times [2022-10-17 11:05:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:05:51,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299520699] [2022-10-17 11:05:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:51,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:05:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:05:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:05:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:05:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:05:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:05:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:05:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:05:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 11:05:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 11:05:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 11:05:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-17 11:05:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-17 11:05:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:05:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-17 11:05:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-17 11:05:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-17 11:05:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-10-17 11:05:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-17 11:05:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-17 11:05:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-10-17 11:05:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-17 11:05:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-17 11:05:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:05:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-10-17 11:05:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2022-10-17 11:05:53,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:05:53,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299520699] [2022-10-17 11:05:53,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299520699] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:53,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:53,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:05:53,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698716396] [2022-10-17 11:05:53,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:53,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:05:53,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:05:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:05:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:05:53,631 INFO L87 Difference]: Start difference. First operand has 1641 states, 1155 states have (on average 1.3593073593073592) internal successors, (1570), 1182 states have internal predecessors, (1570), 387 states have call successors, (387), 98 states have call predecessors, (387), 97 states have return successors, (382), 375 states have call predecessors, (382), 382 states have call successors, (382) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-17 11:06:01,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:01,210 INFO L93 Difference]: Finished difference Result 3664 states and 5412 transitions. [2022-10-17 11:06:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:06:01,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 318 [2022-10-17 11:06:01,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:01,254 INFO L225 Difference]: With dead ends: 3664 [2022-10-17 11:06:01,254 INFO L226 Difference]: Without dead ends: 2015 [2022-10-17 11:06:01,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:06:01,276 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 3268 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 2419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3380 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 3931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2419 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:01,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3380 Valid, 3530 Invalid, 3931 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2419 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-10-17 11:06:01,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-10-17 11:06:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1628. [2022-10-17 11:06:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1149 states have (on average 1.3533507397737163) internal successors, (1555), 1169 states have internal predecessors, (1555), 382 states have call successors, (382), 97 states have call predecessors, (382), 96 states have return successors, (380), 373 states have call predecessors, (380), 380 states have call successors, (380) [2022-10-17 11:06:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2317 transitions. [2022-10-17 11:06:01,539 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2317 transitions. Word has length 318 [2022-10-17 11:06:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:01,540 INFO L495 AbstractCegarLoop]: Abstraction has 1628 states and 2317 transitions. [2022-10-17 11:06:01,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (26), 6 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-17 11:06:01,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2317 transitions. [2022-10-17 11:06:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-10-17 11:06:01,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:01,551 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:06:01,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:01,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2143438509, now seen corresponding path program 1 times [2022-10-17 11:06:01,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:01,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421160771] [2022-10-17 11:06:01,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:06:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:06:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:06:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:06:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:06:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:06:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:06:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 11:06:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 11:06:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 11:06:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-17 11:06:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-17 11:06:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:06:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-17 11:06:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-17 11:06:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-17 11:06:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-10-17 11:06:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-17 11:06:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-17 11:06:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-10-17 11:06:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-17 11:06:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-17 11:06:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-10-17 11:06:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2022-10-17 11:06:02,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:06:02,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421160771] [2022-10-17 11:06:02,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421160771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:02,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:02,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 11:06:02,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392749577] [2022-10-17 11:06:02,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:02,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 11:06:02,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:06:02,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 11:06:02,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:06:02,839 INFO L87 Difference]: Start difference. First operand 1628 states and 2317 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)