./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-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d23ad328ad1b14f5ea514e4bbe064d6db9a0af91365ea0b59871d4844f775f13 --- 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-4e7fbc6 [2022-11-23 14:31:12,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:31:12,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:31:12,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:31:12,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:31:12,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:31:12,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:31:12,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:31:12,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:31:12,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:31:12,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:31:12,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:31:12,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:31:12,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:31:12,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:31:12,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:31:12,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:31:12,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:31:12,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:31:12,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:31:12,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:31:12,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:31:12,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:31:12,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:31:12,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:31:12,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:31:12,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:31:12,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:31:12,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:31:12,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:31:12,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:31:12,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:31:12,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:31:12,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:31:12,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:31:12,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:31:12,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:31:12,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:31:12,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:31:12,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:31:12,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:31:12,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:31:12,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:31:12,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:31:12,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:31:12,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:31:12,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:31:12,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:31:12,945 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:31:12,945 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:31:12,945 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:31:12,945 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:31:12,947 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:31:12,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:31:12,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:31:12,948 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:31:12,948 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:31:12,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:31:12,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:31:12,949 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:31:12,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:31:12,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:31:12,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:31:12,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:31:12,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:31:12,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:31:12,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:31:12,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:31:12,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:31:12,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:31:12,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:31:12,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:31:12,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:31:12,955 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:31:12,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:31:12,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:31:12,955 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:31:12,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:31:12,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:31:12,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:31:12,956 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_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d23ad328ad1b14f5ea514e4bbe064d6db9a0af91365ea0b59871d4844f775f13 [2022-11-23 14:31:13,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:31:13,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:31:13,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:31:13,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:31:13,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:31:13,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i [2022-11-23 14:31:16,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:31:17,848 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:31:17,848 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i [2022-11-23 14:31:17,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/data/9d96eb663/008b9d5686f74954a20383cfc8f3f39f/FLAG990c318b6 [2022-11-23 14:31:17,962 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/data/9d96eb663/008b9d5686f74954a20383cfc8f3f39f [2022-11-23 14:31:17,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:31:17,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:31:17,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:31:17,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:31:17,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:31:17,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:17" (1/1) ... [2022-11-23 14:31:17,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3689774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:17, skipping insertion in model container [2022-11-23 14:31:17,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:17" (1/1) ... [2022-11-23 14:31:17,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:31:18,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:31:23,142 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:23,145 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:23,146 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:23,146 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:23,147 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:24,445 WARN L237 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_35c91fea-3035-4148-a38c-9b8df7bfc16c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i[665471,665484] [2022-11-23 14:31:24,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:31:24,897 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:31:25,501 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:25,502 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:25,503 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:25,504 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:25,504 WARN L1569 CHandler]: Possible shadowing of function abort [2022-11-23 14:31:25,976 WARN L237 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_35c91fea-3035-4148-a38c-9b8df7bfc16c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i[665471,665484] [2022-11-23 14:31:26,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:31:26,269 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:31:26,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26 WrapperNode [2022-11-23 14:31:26,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:31:26,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:31:26,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:31:26,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:31:26,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:26,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,111 INFO L138 Inliner]: procedures = 574, calls = 7572, calls flagged for inlining = 215, calls inlined = 200, statements flattened = 18215 [2022-11-23 14:31:27,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:31:27,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:31:27,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:31:27,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:31:27,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:27,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:28,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:28,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:31:28,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:31:28,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:31:28,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:31:28,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (1/1) ... [2022-11-23 14:31:28,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:31:28,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:31:28,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:31:28,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c91fea-3035-4148-a38c-9b8df7bfc16c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:31:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:31:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:31:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_thread_groups [2022-11-23 14:31:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_thread_groups [2022-11-23 14:31:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2022-11-23 14:31:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2022-11-23 14:31:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-23 14:31:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-23 14:31:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure init_async_submit [2022-11-23 14:31:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure init_async_submit [2022-11-23 14:31:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-23 14:31:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_finish_reshape [2022-11-23 14:31:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_finish_reshape [2022-11-23 14:31:28,442 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2022-11-23 14:31:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2022-11-23 14:31:28,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:31:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:31:28,443 INFO L130 BoogieDeclarations]: Found specification of procedure flex_array_free [2022-11-23 14:31:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure flex_array_free [2022-11-23 14:31:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure sync_request [2022-11-23 14:31:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_request [2022-11-23 14:31:28,444 INFO L130 BoogieDeclarations]: Found specification of procedure get_active_stripe [2022-11-23 14:31:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure get_active_stripe [2022-11-23 14:31:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 14:31:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 14:31:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:31:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:31:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_remove_disk [2022-11-23 14:31:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_remove_disk [2022-11-23 14:31:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-11-23 14:31:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-11-23 14:31:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-23 14:31:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-23 14:31:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_start_sync [2022-11-23 14:31:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_start_sync [2022-11-23 14:31:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_list [2022-11-23 14:31:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_list [2022-11-23 14:31:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure blk_finish_plug [2022-11-23 14:31:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_finish_plug [2022-11-23 14:31:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-23 14:31:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-23 14:31:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_check_reshape [2022-11-23 14:31:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_check_reshape [2022-11-23 14:31:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2022-11-23 14:31:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2022-11-23 14:31:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-23 14:31:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-23 14:31:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2022-11-23 14:31:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2022-11-23 14:31:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-23 14:31:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-23 14:31:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:31:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:31:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure setup_conf [2022-11-23 14:31:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_conf [2022-11-23 14:31:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_plug [2022-11-23 14:31:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_plug [2022-11-23 14:31:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2022-11-23 14:31:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2022-11-23 14:31:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:31:28,486 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:31:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure add_stripe_bio [2022-11-23 14:31:28,486 INFO L138 BoogieDeclarations]: Found implementation of procedure add_stripe_bio [2022-11-23 14:31:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2022-11-23 14:31:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2022-11-23 14:31:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2022-11-23 14:31:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2022-11-23 14:31:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-23 14:31:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-23 14:31:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure handle_stripe_clean_event [2022-11-23 14:31:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_stripe_clean_event [2022-11-23 14:31:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-23 14:31:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-23 14:31:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_endwrite [2022-11-23 14:31:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_endwrite [2022-11-23 14:31:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-23 14:31:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure async_memcpy [2022-11-23 14:31:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure async_memcpy [2022-11-23 14:31:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:31:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:31:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-23 14:31:28,490 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-23 14:31:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:31:28,490 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:31:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure __release_stripe [2022-11-23 14:31:28,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_stripe [2022-11-23 14:31:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure md_write_end [2022-11-23 14:31:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure md_write_end [2022-11-23 14:31:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:31:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_begin [2022-11-23 14:31:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_begin [2022-11-23 14:31:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure is_badblock [2022-11-23 14:31:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure is_badblock [2022-11-23 14:31:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-23 14:31:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-23 14:31:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure md_set_array_sectors [2022-11-23 14:31:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure md_set_array_sectors [2022-11-23 14:31:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-11-23 14:31:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-11-23 14:31:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure async_trigger_callback [2022-11-23 14:31:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure async_trigger_callback [2022-11-23 14:31:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_dec_bi_active_stripes [2022-11-23 14:31:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_dec_bi_active_stripes [2022-11-23 14:31:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 14:31:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 14:31:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure register_md_personality [2022-11-23 14:31:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure register_md_personality [2022-11-23 14:31:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 14:31:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 14:31:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:31:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_md_personality [2022-11-23 14:31:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_md_personality [2022-11-23 14:31:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:31:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:31:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:31:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_start_sect [2022-11-23 14:31:28,498 INFO L138 BoogieDeclarations]: Found implementation of procedure get_start_sect [2022-11-23 14:31:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure lock_device_hash_lock [2022-11-23 14:31:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_device_hash_lock [2022-11-23 14:31:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:31:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure md_check_recovery [2022-11-23 14:31:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure md_check_recovery [2022-11-23 14:31:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_operations_active [2022-11-23 14:31:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_operations_active [2022-11-23 14:31:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash_locks_hash [2022-11-23 14:31:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash_locks_hash [2022-11-23 14:31:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure print_raid5_conf [2022-11-23 14:31:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure print_raid5_conf [2022-11-23 14:31:28,513 INFO L130 BoogieDeclarations]: Found specification of procedure free_scratch_buffer [2022-11-23 14:31:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure free_scratch_buffer [2022-11-23 14:31:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_next_disk [2022-11-23 14:31:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_next_disk [2022-11-23 14:31:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_d0 [2022-11-23 14:31:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_d0 [2022-11-23 14:31:28,514 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-23 14:31:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-23 14:31:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure handle_stripe [2022-11-23 14:31:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_stripe [2022-11-23 14:31:28,515 INFO L130 BoogieDeclarations]: Found specification of procedure status [2022-11-23 14:31:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure status [2022-11-23 14:31:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-23 14:31:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-23 14:31:28,516 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_congested [2022-11-23 14:31:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_congested [2022-11-23 14:31:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 14:31:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 14:31:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure put_online_cpus [2022-11-23 14:31:28,517 INFO L138 BoogieDeclarations]: Found implementation of procedure put_online_cpus [2022-11-23 14:31:28,517 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_do_work [2022-11-23 14:31:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_do_work [2022-11-23 14:31:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-23 14:31:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-23 14:31:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-11-23 14:31:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-11-23 14:31:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-23 14:31:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-23 14:31:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:31:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:31:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:31:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-23 14:31:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-23 14:31:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_enable [2022-11-23 14:31:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_enable [2022-11-23 14:31:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2022-11-23 14:31:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2022-11-23 14:31:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 14:31:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 14:31:28,521 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_set_idx [2022-11-23 14:31:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_set_idx [2022-11-23 14:31:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:31:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_idx_to_slot [2022-11-23 14:31:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_idx_to_slot [2022-11-23 14:31:28,522 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_inc_bi_active_stripes [2022-11-23 14:31:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_inc_bi_active_stripes [2022-11-23 14:31:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_clear_badblocks [2022-11-23 14:31:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_clear_badblocks [2022-11-23 14:31:28,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:31:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:31:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:31:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure disk_stack_limits [2022-11-23 14:31:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_stack_limits [2022-11-23 14:31:28,524 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:31:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure compute_blocknr [2022-11-23 14:31:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_blocknr [2022-11-23 14:31:28,525 INFO L130 BoogieDeclarations]: Found specification of procedure remove_hash [2022-11-23 14:31:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_hash [2022-11-23 14:31:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_can_batch [2022-11-23 14:31:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_can_batch [2022-11-23 14:31:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure ops_run_check_pq [2022-11-23 14:31:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ops_run_check_pq [2022-11-23 14:31:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure stripe_hash [2022-11-23 14:31:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure stripe_hash [2022-11-23 14:31:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-23 14:31:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-23 14:31:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_wakeup_stripe_thread [2022-11-23 14:31:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_wakeup_stripe_thread [2022-11-23 14:31:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_set_badblocks [2022-11-23 14:31:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_set_badblocks [2022-11-23 14:31:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqcount_retry [2022-11-23 14:31:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqcount_retry [2022-11-23 14:31:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 14:31:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 14:31:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure release_inactive_stripe_list [2022-11-23 14:31:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure release_inactive_stripe_list [2022-11-23 14:31:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:31:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:31:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe [2022-11-23 14:31:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe [2022-11-23 14:31:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure md_error [2022-11-23 14:31:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure md_error [2022-11-23 14:31:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure md_done_sync [2022-11-23 14:31:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure md_done_sync [2022-11-23 14:31:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure __find_stripe [2022-11-23 14:31:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_stripe [2022-11-23 14:31:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure disk_devt [2022-11-23 14:31:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure disk_devt [2022-11-23 14:31:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 14:31:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 14:31:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure make_request [2022-11-23 14:31:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure make_request [2022-11-23 14:31:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:31:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:31:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_begin [2022-11-23 14:31:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_begin [2022-11-23 14:31:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-23 14:31:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-23 14:31:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 14:31:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 14:31:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:31:28,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:31:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:31:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:31:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure handle_active_stripes [2022-11-23 14:31:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_active_stripes [2022-11-23 14:31:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-11-23 14:31:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-11-23 14:31:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2022-11-23 14:31:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2022-11-23 14:31:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-23 14:31:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:31:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:31:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:31:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:31:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_size [2022-11-23 14:31:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_size [2022-11-23 14:31:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure async_xor [2022-11-23 14:31:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure async_xor [2022-11-23 14:31:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure md_sync_acct [2022-11-23 14:31:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure md_sync_acct [2022-11-23 14:31:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_start_reshape [2022-11-23 14:31:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_start_reshape [2022-11-23 14:31:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:31:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:31:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify_dirent_safe [2022-11-23 14:31:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify_dirent_safe [2022-11-23 14:31:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub_return [2022-11-23 14:31:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub_return [2022-11-23 14:31:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-23 14:31:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_lock [2022-11-23 14:31:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_lock [2022-11-23 14:31:28,563 INFO L130 BoogieDeclarations]: Found specification of procedure async_copy_data [2022-11-23 14:31:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure async_copy_data [2022-11-23 14:31:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_spare_active [2022-11-23 14:31:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_spare_active [2022-11-23 14:31:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 14:31:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 14:31:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-23 14:31:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-23 14:31:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write_seqcount_end [2022-11-23 14:31:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure write_seqcount_end [2022-11-23 14:31:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:31:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:31:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure md_allow_write [2022-11-23 14:31:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure md_allow_write [2022-11-23 14:31:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure return_io [2022-11-23 14:31:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure return_io [2022-11-23 14:31:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-23 14:31:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-23 14:31:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure lock_all_device_hash_locks_irq [2022-11-23 14:31:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_all_device_hash_locks_irq [2022-11-23 14:31:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 14:31:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 14:31:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:31:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:31:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:31:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:31:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure ops_complete_reconstruct [2022-11-23 14:31:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ops_complete_reconstruct [2022-11-23 14:31:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_device_hash_lock [2022-11-23 14:31:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_device_hash_lock [2022-11-23 14:31:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_resize [2022-11-23 14:31:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_resize [2022-11-23 14:31:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_remap [2022-11-23 14:31:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_remap [2022-11-23 14:31:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_takeover [2022-11-23 14:31:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_takeover [2022-11-23 14:31:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-23 14:31:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-23 14:31:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure md_register_thread [2022-11-23 14:31:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure md_register_thread [2022-11-23 14:31:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-23 14:31:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-23 14:31:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure run [2022-11-23 14:31:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2022-11-23 14:31:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:31:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:31:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:31:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure check_stripe_cache [2022-11-23 14:31:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure check_stripe_cache [2022-11-23 14:31:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-23 14:31:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-23 14:31:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure break_stripe_batch_list [2022-11-23 14:31:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure break_stripe_batch_list [2022-11-23 14:31:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_quiesce [2022-11-23 14:31:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_quiesce [2022-11-23 14:31:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:31:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-23 14:31:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-23 14:31:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-23 14:31:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-23 14:31:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure bio_reset [2022-11-23 14:31:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_reset [2022-11-23 14:31:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure drop_one_stripe [2022-11-23 14:31:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_one_stripe [2022-11-23 14:31:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-11-23 14:31:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-11-23 14:31:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:31:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_compute_sector [2022-11-23 14:31:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_compute_sector [2022-11-23 14:31:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_add_disk [2022-11-23 14:31:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_add_disk [2022-11-23 14:31:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block_bio_complete [2022-11-23 14:31:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block_bio_complete [2022-11-23 14:31:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_takeover [2022-11-23 14:31:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_takeover [2022-11-23 14:31:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:31:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:31:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-23 14:31:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-23 14:31:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 14:31:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 14:31:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 14:31:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 14:31:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure shrink_buffers [2022-11-23 14:31:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure shrink_buffers [2022-11-23 14:31:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure do_release_stripe [2022-11-23 14:31:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure do_release_stripe [2022-11-23 14:31:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-23 14:31:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-23 14:31:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure scribble_alloc [2022-11-23 14:31:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure scribble_alloc [2022-11-23 14:31:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure md_wait_for_blocked_rdev [2022-11-23 14:31:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wait_for_blocked_rdev [2022-11-23 14:31:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_mergeable_bvec [2022-11-23 14:31:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_mergeable_bvec [2022-11-23 14:31:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 14:31:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 14:31:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure check_reshape [2022-11-23 14:31:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure check_reshape [2022-11-23 14:31:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-11-23 14:31:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-11-23 14:31:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure get_free_stripe [2022-11-23 14:31:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure get_free_stripe [2022-11-23 14:31:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure mdname [2022-11-23 14:31:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure mdname [2022-11-23 14:31:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure raid4_takeover [2022-11-23 14:31:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure raid4_takeover [2022-11-23 14:31:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure r5_next_bio [2022-11-23 14:31:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure r5_next_bio [2022-11-23 14:31:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-11-23 14:31:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-11-23 14:31:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure free_conf [2022-11-23 14:31:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure free_conf [2022-11-23 14:31:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 14:31:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 14:31:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2022-11-23 14:31:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2022-11-23 14:31:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-23 14:31:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-23 14:31:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure only_parity [2022-11-23 14:31:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure only_parity [2022-11-23 14:31:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:31:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:31:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_unlock [2022-11-23 14:31:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_unlock [2022-11-23 14:31:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure to_addr_conv [2022-11-23 14:31:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure to_addr_conv [2022-11-23 14:31:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:31:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_3 [2022-11-23 14:31:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_3 [2022-11-23 14:31:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-11-23 14:31:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-11-23 14:31:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_2 [2022-11-23 14:31:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_2 [2022-11-23 14:31:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-11-23 14:31:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-11-23 14:31:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure grow_one_stripe [2022-11-23 14:31:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure grow_one_stripe [2022-11-23 14:31:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_stripe [2022-11-23 14:31:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_stripe [2022-11-23 14:31:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_dec_pending [2022-11-23 14:31:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_dec_pending [2022-11-23 14:31:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop_4 [2022-11-23 14:31:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop_4 [2022-11-23 14:31:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_resume [2022-11-23 14:31:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_resume [2022-11-23 14:31:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-23 14:31:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-23 14:31:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:31:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:31:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure async_gen_syndrome [2022-11-23 14:31:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure async_gen_syndrome [2022-11-23 14:31:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure release_stripe_plug [2022-11-23 14:31:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure release_stripe_plug [2022-11-23 14:31:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure raid6_check_reshape [2022-11-23 14:31:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure raid6_check_reshape [2022-11-23 14:31:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-23 14:31:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-23 14:31:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure has_failed [2022-11-23 14:31:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure has_failed [2022-11-23 14:31:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 14:31:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 14:31:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_online_cpus [2022-11-23 14:31:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure get_online_cpus [2022-11-23 14:31:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reconstruction [2022-11-23 14:31:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reconstruction [2022-11-23 14:31:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_all_device_hash_locks_irq [2022-11-23 14:31:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_all_device_hash_locks_irq [2022-11-23 14:31:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:31:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:31:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-23 14:31:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-23 14:31:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 14:31:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 14:31:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-11-23 14:31:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-11-23 14:31:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure raid5_free [2022-11-23 14:31:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure raid5_free [2022-11-23 14:31:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-23 14:31:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-23 14:31:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2022-11-23 14:31:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2022-11-23 14:31:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2022-11-23 14:31:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2022-11-23 14:31:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure calc_degraded [2022-11-23 14:31:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_degraded [2022-11-23 14:31:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_test_cpu [2022-11-23 14:31:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_test_cpu [2022-11-23 14:31:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_scratch_buffer [2022-11-23 14:31:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_scratch_buffer [2022-11-23 14:31:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 14:31:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 14:31:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2022-11-23 14:31:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2022-11-23 14:31:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 14:31:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 14:31:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2022-11-23 14:31:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2022-11-23 14:31:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid6 [2022-11-23 14:31:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid6 [2022-11-23 14:31:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure algorithm_valid_raid5 [2022-11-23 14:31:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure algorithm_valid_raid5 [2022-11-23 14:31:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_startwrite [2022-11-23 14:31:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_startwrite [2022-11-23 14:31:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure set_syndrome_sources [2022-11-23 14:31:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure set_syndrome_sources [2022-11-23 14:31:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-11-23 14:31:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-11-23 14:31:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-23 14:31:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-23 14:31:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-11-23 14:31:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-11-23 14:31:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure use_new_offset [2022-11-23 14:31:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure use_new_offset [2022-11-23 14:31:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-23 14:31:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-23 14:31:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-23 14:31:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-23 14:31:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-23 14:31:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-23 14:31:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:31:28,626 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:31:28,626 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_nested [2022-11-23 14:31:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_nested [2022-11-23 14:31:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-23 14:31:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-23 14:31:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure raid45_takeover_raid0 [2022-11-23 14:31:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure raid45_takeover_raid0 [2022-11-23 14:31:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure to_addr_page [2022-11-23 14:31:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure to_addr_page [2022-11-23 14:31:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:31:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure flex_array_get [2022-11-23 14:31:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure flex_array_get [2022-11-23 14:31:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-23 14:31:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-23 14:31:28,631 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_add [2022-11-23 14:31:28,643 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_add [2022-11-23 14:31:30,780 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:31:30,789 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:31:31,725 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:31:50,377 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:32:00,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:32:00,511 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:32:00,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:00 BoogieIcfgContainer [2022-11-23 14:32:00,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:32:00,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:32:00,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:32:00,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:32:00,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:17" (1/3) ... [2022-11-23 14:32:00,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75613410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:00, skipping insertion in model container [2022-11-23 14:32:00,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:26" (2/3) ... [2022-11-23 14:32:00,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75613410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:32:00, skipping insertion in model container [2022-11-23 14:32:00,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:32:00" (3/3) ... [2022-11-23 14:32:00,538 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--raid456.ko-entry_point.cil.out.i [2022-11-23 14:32:00,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:32:00,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:32:00,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:32:00,815 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=FINITE_AUTOMATA, 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;@3863ff5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:32:00,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:32:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 5761 states, 3559 states have (on average 1.3897162124192188) internal successors, (4946), 3801 states have internal predecessors, (4946), 1963 states have call successors, (1963), 238 states have call predecessors, (1963), 237 states have return successors, (1951), 1910 states have call predecessors, (1951), 1951 states have call successors, (1951) [2022-11-23 14:32:00,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-11-23 14:32:00,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:00,904 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:00,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:32:00,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:00,911 INFO L85 PathProgramCache]: Analyzing trace with hash -97645072, now seen corresponding path program 1 times [2022-11-23 14:32:00,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:00,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229067609] [2022-11-23 14:32:00,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:00,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:32:03,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:03,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229067609] [2022-11-23 14:32:03,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229067609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:03,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:03,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:03,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530590257] [2022-11-23 14:32:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:03,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:03,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:03,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:03,711 INFO L87 Difference]: Start difference. First operand has 5761 states, 3559 states have (on average 1.3897162124192188) internal successors, (4946), 3801 states have internal predecessors, (4946), 1963 states have call successors, (1963), 238 states have call predecessors, (1963), 237 states have return successors, (1951), 1910 states have call predecessors, (1951), 1951 states have call successors, (1951) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 14:32:05,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:12,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:32:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:14,505 INFO L93 Difference]: Finished difference Result 17017 states and 26192 transitions. [2022-11-23 14:32:14,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:32:14,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 622 [2022-11-23 14:32:14,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:14,643 INFO L225 Difference]: With dead ends: 17017 [2022-11-23 14:32:14,643 INFO L226 Difference]: Without dead ends: 11202 [2022-11-23 14:32:14,705 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 [2022-11-23 14:32:14,711 INFO L413 NwaCegarLoop]: 10070 mSDtfsCounter, 8626 mSDsluCounter, 8178 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8626 SdHoareTripleChecker+Valid, 18248 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:14,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8626 Valid, 18248 Invalid, 1348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1346 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-23 14:32:14,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2022-11-23 14:32:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 11188. [2022-11-23 14:32:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11188 states, 6885 states have (on average 1.376325344952796) internal successors, (9476), 7338 states have internal predecessors, (9476), 3831 states have call successors, (3831), 472 states have call predecessors, (3831), 471 states have return successors, (3826), 3742 states have call predecessors, (3826), 3826 states have call successors, (3826) [2022-11-23 14:32:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11188 states to 11188 states and 17133 transitions. [2022-11-23 14:32:15,992 INFO L78 Accepts]: Start accepts. Automaton has 11188 states and 17133 transitions. Word has length 622 [2022-11-23 14:32:16,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:16,002 INFO L495 AbstractCegarLoop]: Abstraction has 11188 states and 17133 transitions. [2022-11-23 14:32:16,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 14:32:16,004 INFO L276 IsEmpty]: Start isEmpty. Operand 11188 states and 17133 transitions. [2022-11-23 14:32:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-23 14:32:16,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:16,029 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:16,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:32:16,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:32:16,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:16,030 INFO L85 PathProgramCache]: Analyzing trace with hash 532396685, now seen corresponding path program 1 times [2022-11-23 14:32:16,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:16,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152063516] [2022-11-23 14:32:16,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:16,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:17,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:32:17,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:17,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152063516] [2022-11-23 14:32:17,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152063516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:17,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:17,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128083515] [2022-11-23 14:32:17,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:17,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:17,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:17,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:17,983 INFO L87 Difference]: Start difference. First operand 11188 states and 17133 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 14:32:20,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:25,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:32:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:29,509 INFO L93 Difference]: Finished difference Result 33238 states and 50922 transitions. [2022-11-23 14:32:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:32:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 625 [2022-11-23 14:32:29,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:29,769 INFO L225 Difference]: With dead ends: 33238 [2022-11-23 14:32:29,770 INFO L226 Difference]: Without dead ends: 22167 [2022-11-23 14:32:29,898 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 [2022-11-23 14:32:29,899 INFO L413 NwaCegarLoop]: 9929 mSDtfsCounter, 8428 mSDsluCounter, 8010 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8435 SdHoareTripleChecker+Valid, 17939 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:29,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8435 Valid, 17939 Invalid, 1348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1345 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-11-23 14:32:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22167 states. [2022-11-23 14:32:32,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22167 to 22153. [2022-11-23 14:32:32,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22153 states, 13638 states have (on average 1.3776946766388034) internal successors, (18789), 14542 states have internal predecessors, (18789), 7573 states have call successors, (7573), 942 states have call predecessors, (7573), 941 states have return successors, (7582), 7398 states have call predecessors, (7582), 7568 states have call successors, (7582) [2022-11-23 14:32:32,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22153 states to 22153 states and 33944 transitions. [2022-11-23 14:32:32,624 INFO L78 Accepts]: Start accepts. Automaton has 22153 states and 33944 transitions. Word has length 625 [2022-11-23 14:32:32,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:32,629 INFO L495 AbstractCegarLoop]: Abstraction has 22153 states and 33944 transitions. [2022-11-23 14:32:32,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 14:32:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 22153 states and 33944 transitions. [2022-11-23 14:32:32,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-23 14:32:32,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:32,656 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:32,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:32:32,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:32:32,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:32,658 INFO L85 PathProgramCache]: Analyzing trace with hash -494193458, now seen corresponding path program 1 times [2022-11-23 14:32:32,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:32,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349089766] [2022-11-23 14:32:32,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:32,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:32:34,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:34,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349089766] [2022-11-23 14:32:34,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349089766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:34,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:34,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:34,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221479586] [2022-11-23 14:32:34,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:34,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:34,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:34,550 INFO L87 Difference]: Start difference. First operand 22153 states and 33944 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:32:36,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:40,622 INFO L93 Difference]: Finished difference Result 22155 states and 33945 transitions. [2022-11-23 14:32:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:32:40,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 625 [2022-11-23 14:32:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:40,872 INFO L225 Difference]: With dead ends: 22155 [2022-11-23 14:32:40,872 INFO L226 Difference]: Without dead ends: 22152 [2022-11-23 14:32:40,884 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 [2022-11-23 14:32:40,885 INFO L413 NwaCegarLoop]: 8014 mSDtfsCounter, 8552 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8552 SdHoareTripleChecker+Valid, 8014 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:40,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8552 Valid, 8014 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 668 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 14:32:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22152 states. [2022-11-23 14:32:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22152 to 22152. [2022-11-23 14:32:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22152 states, 13638 states have (on average 1.377621352104414) internal successors, (18788), 14541 states have internal predecessors, (18788), 7572 states have call successors, (7572), 942 states have call predecessors, (7572), 941 states have return successors, (7582), 7398 states have call predecessors, (7582), 7568 states have call successors, (7582) [2022-11-23 14:32:42,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22152 states to 22152 states and 33942 transitions. [2022-11-23 14:32:42,981 INFO L78 Accepts]: Start accepts. Automaton has 22152 states and 33942 transitions. Word has length 625 [2022-11-23 14:32:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:42,982 INFO L495 AbstractCegarLoop]: Abstraction has 22152 states and 33942 transitions. [2022-11-23 14:32:42,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:32:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 22152 states and 33942 transitions. [2022-11-23 14:32:42,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-11-23 14:32:42,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:42,992 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:42,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:32:42,993 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:32:42,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:42,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1856729801, now seen corresponding path program 1 times [2022-11-23 14:32:42,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:42,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969275362] [2022-11-23 14:32:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:32:44,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:44,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969275362] [2022-11-23 14:32:44,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969275362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:44,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:44,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:44,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764403547] [2022-11-23 14:32:44,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:44,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:44,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:44,575 INFO L87 Difference]: Start difference. First operand 22152 states and 33942 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:32:46,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:49,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:32:51,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:51,089 INFO L93 Difference]: Finished difference Result 22154 states and 33943 transitions. [2022-11-23 14:32:51,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:32:51,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 626 [2022-11-23 14:32:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:51,232 INFO L225 Difference]: With dead ends: 22154 [2022-11-23 14:32:51,233 INFO L226 Difference]: Without dead ends: 22151 [2022-11-23 14:32:51,250 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 [2022-11-23 14:32:51,252 INFO L413 NwaCegarLoop]: 8012 mSDtfsCounter, 8549 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8549 SdHoareTripleChecker+Valid, 8012 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:51,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8549 Valid, 8012 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 668 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:32:51,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22151 states. [2022-11-23 14:32:53,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22151 to 22151. [2022-11-23 14:32:53,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22151 states, 13638 states have (on average 1.377548027570025) internal successors, (18787), 14540 states have internal predecessors, (18787), 7571 states have call successors, (7571), 942 states have call predecessors, (7571), 941 states have return successors, (7582), 7398 states have call predecessors, (7582), 7568 states have call successors, (7582) [2022-11-23 14:32:53,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22151 states to 22151 states and 33940 transitions. [2022-11-23 14:32:53,304 INFO L78 Accepts]: Start accepts. Automaton has 22151 states and 33940 transitions. Word has length 626 [2022-11-23 14:32:53,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:53,306 INFO L495 AbstractCegarLoop]: Abstraction has 22151 states and 33940 transitions. [2022-11-23 14:32:53,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:32:53,306 INFO L276 IsEmpty]: Start isEmpty. Operand 22151 states and 33940 transitions. [2022-11-23 14:32:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-11-23 14:32:53,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:53,317 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:53,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:32:53,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:32:53,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:53,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1720911665, now seen corresponding path program 1 times [2022-11-23 14:32:53,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:53,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268805760] [2022-11-23 14:32:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:53,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:32:54,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:54,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268805760] [2022-11-23 14:32:54,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268805760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:54,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:54,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:32:54,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941134940] [2022-11-23 14:32:54,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:54,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:32:54,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:54,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:32:54,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:32:54,840 INFO L87 Difference]: Start difference. First operand 22151 states and 33940 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:32:56,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:59,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:33:01,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:33:01,342 INFO L93 Difference]: Finished difference Result 22153 states and 33941 transitions. [2022-11-23 14:33:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:33:01,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 627 [2022-11-23 14:33:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:33:01,482 INFO L225 Difference]: With dead ends: 22153 [2022-11-23 14:33:01,482 INFO L226 Difference]: Without dead ends: 22150 [2022-11-23 14:33:01,498 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 [2022-11-23 14:33:01,499 INFO L413 NwaCegarLoop]: 8010 mSDtfsCounter, 8546 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8546 SdHoareTripleChecker+Valid, 8010 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:33:01,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8546 Valid, 8010 Invalid, 669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 668 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 14:33:01,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22150 states. [2022-11-23 14:33:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22150 to 22150. [2022-11-23 14:33:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22150 states, 13638 states have (on average 1.3774747030356358) internal successors, (18786), 14539 states have internal predecessors, (18786), 7570 states have call successors, (7570), 942 states have call predecessors, (7570), 941 states have return successors, (7582), 7398 states have call predecessors, (7582), 7568 states have call successors, (7582) [2022-11-23 14:33:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22150 states to 22150 states and 33938 transitions. [2022-11-23 14:33:03,494 INFO L78 Accepts]: Start accepts. Automaton has 22150 states and 33938 transitions. Word has length 627 [2022-11-23 14:33:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:33:03,495 INFO L495 AbstractCegarLoop]: Abstraction has 22150 states and 33938 transitions. [2022-11-23 14:33:03,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:33:03,496 INFO L276 IsEmpty]: Start isEmpty. Operand 22150 states and 33938 transitions. [2022-11-23 14:33:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-11-23 14:33:03,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:33:03,507 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:33:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:33:03,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:33:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:33:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash 412576152, now seen corresponding path program 1 times [2022-11-23 14:33:03,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:33:03,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087768696] [2022-11-23 14:33:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:03,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:33:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:33:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:33:04,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:33:04,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087768696] [2022-11-23 14:33:04,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087768696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:33:04,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:33:04,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:33:04,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107672224] [2022-11-23 14:33:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:33:04,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:33:04,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:33:04,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:33:04,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:33:04,970 INFO L87 Difference]: Start difference. First operand 22150 states and 33938 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 14:33:07,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:11,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:33:13,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:33:17,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:33:17,374 INFO L93 Difference]: Finished difference Result 66019 states and 101158 transitions. [2022-11-23 14:33:17,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:33:17,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 629 [2022-11-23 14:33:17,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:33:17,822 INFO L225 Difference]: With dead ends: 66019 [2022-11-23 14:33:17,823 INFO L226 Difference]: Without dead ends: 43986 [2022-11-23 14:33:17,948 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 [2022-11-23 14:33:17,950 INFO L413 NwaCegarLoop]: 9973 mSDtfsCounter, 8425 mSDsluCounter, 8004 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8425 SdHoareTripleChecker+Valid, 17977 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:33:17,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8425 Valid, 17977 Invalid, 1352 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1350 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2022-11-23 14:33:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43986 states. [2022-11-23 14:33:21,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43986 to 43972. [2022-11-23 14:33:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43972 states, 27062 states have (on average 1.3779469366639567) internal successors, (37290), 28865 states have internal predecessors, (37290), 15030 states have call successors, (15030), 1880 states have call predecessors, (15030), 1879 states have return successors, (15056), 14686 states have call predecessors, (15056), 15028 states have call successors, (15056) [2022-11-23 14:33:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43972 states to 43972 states and 67376 transitions. [2022-11-23 14:33:22,142 INFO L78 Accepts]: Start accepts. Automaton has 43972 states and 67376 transitions. Word has length 629 [2022-11-23 14:33:22,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:33:22,143 INFO L495 AbstractCegarLoop]: Abstraction has 43972 states and 67376 transitions. [2022-11-23 14:33:22,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 14:33:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 43972 states and 67376 transitions. [2022-11-23 14:33:22,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-11-23 14:33:22,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:33:22,155 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:33:22,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:33:22,156 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:33:22,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:33:22,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1805521612, now seen corresponding path program 1 times [2022-11-23 14:33:22,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:33:22,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556966771] [2022-11-23 14:33:22,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:22,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:33:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:33:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 7051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7051 trivial. 0 not checked. [2022-11-23 14:33:24,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:33:24,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556966771] [2022-11-23 14:33:24,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556966771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:33:24,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:33:24,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:33:24,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551709316] [2022-11-23 14:33:24,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:33:24,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:33:24,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:33:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:33:24,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:33:24,103 INFO L87 Difference]: Start difference. First operand 43972 states and 67376 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:33:25,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:32,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:33:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:33:38,468 INFO L93 Difference]: Finished difference Result 87213 states and 133699 transitions. [2022-11-23 14:33:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:33:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 628 [2022-11-23 14:33:38,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:33:39,052 INFO L225 Difference]: With dead ends: 87213 [2022-11-23 14:33:39,052 INFO L226 Difference]: Without dead ends: 86923 [2022-11-23 14:33:39,124 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 [2022-11-23 14:33:39,125 INFO L413 NwaCegarLoop]: 11291 mSDtfsCounter, 8371 mSDsluCounter, 7841 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8378 SdHoareTripleChecker+Valid, 19132 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:33:39,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8378 Valid, 19132 Invalid, 1501 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 1498 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 14:33:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86923 states. [2022-11-23 14:33:45,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86923 to 86923. [2022-11-23 14:33:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86923 states, 53510 states have (on average 1.377948047094001) internal successors, (73734), 57068 states have internal predecessors, (73734), 29717 states have call successors, (29717), 3704 states have call predecessors, (29717), 3695 states have return successors, (29799), 29018 states have call predecessors, (29799), 29715 states have call successors, (29799) [2022-11-23 14:33:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86923 states to 86923 states and 133250 transitions. [2022-11-23 14:33:46,364 INFO L78 Accepts]: Start accepts. Automaton has 86923 states and 133250 transitions. Word has length 628 [2022-11-23 14:33:46,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:33:46,365 INFO L495 AbstractCegarLoop]: Abstraction has 86923 states and 133250 transitions. [2022-11-23 14:33:46,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-23 14:33:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 86923 states and 133250 transitions. [2022-11-23 14:33:46,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2022-11-23 14:33:46,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:33:46,396 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 23, 23, 23, 23, 23, 23, 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] [2022-11-23 14:33:46,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:33:46,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:33:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:33:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1937091744, now seen corresponding path program 1 times [2022-11-23 14:33:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:33:46,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160060528] [2022-11-23 14:33:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:33:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat